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GEO S12 Series

1. 1 E Or gt 10 3 12 r i Jy Y i Andino 1 1 Hayd x x 3 Si LA ERAS bg Een NM ba M mm 2 Q M os 4 1 Sawa j LI ss s Suolno loid oAJes enBoyeuy INVHOVIG 110 113 GEO 512 SERIES PARTS amp ACCESSORIES LIST 14 GEO S12 SERIES PARTS amp ACCESSORIES LIST 14 1 Modules amp Control Electronics List MODEL DRAWING 51230 51210 NX 242 ES4 NXAMP4x1 pe NXAMP4x4 DESCRIPTION GEO 1230 Module GEO 1210 Module Digital TDcontroller Digital Powered Controller 4x1300W j Digital Powered Controller 4x4000W 14 2 Accessories List MOD
2. 7 i ENOLWINWIS 1 1 1 I3NNVHO j QUE ScNEE PUES 1ndino 1 I 1 s 1 x 4 00 f ji L 636835 3 gt ova je F j o3 le 5 00 TINSA ZNOWWINWIS NAA 1 pem maqana aa QR EE e t ju znova x lt 11 1 a 4 0 I nm zaviaa 3 j P Luy 1 00 ainn 1 es Ro HN av 9 Ly putts ovemva a NOUVINNIS 108110 5
3. 99 13 4 1 GEO ST2 Jae tt rik uA dad kc desse dk e ce SR 99 13 4 2 GEO 512 Connecting Plate 1 100 13 4 3 GEO 512 Connecting Plate 2 101 13 4 4 GEO S12 Connecting Plate Z a n neo oH RR RI D e 102 13 4 5 Single GEO 512 U 2 0 2 2200000000 eene entem usay e 103 13 4 6 L Bracket for cable suspension 104 13 4 7 U Bracket for rigid suspension enne 105 13 4 8 GEO 512 Push Pins 04 1820 106 13 5 GEO 12 Analogue TDcontrollers a 107 13 5 1 Sp6eCGIfICatiOlis 107 13 5 2 Front and Rear Panel 40100000 107 136 242 TDcontroller with NX Tension Card nennen nnns nnn 108 13 6 1 Specifications 2 aded Le dab EP E E EO Ee et oL ed tle 108 13 6 2 Eront and Rear Panel eet Ce pi eT pe eoe use teh 108 13 6 3 um cce ee oe Mer LAE D Le 109 14 GEO S12 Series Parts amp Accessories List eese eese n
4. 71 9 4 Analogue TDcontroller USER GUIDE 72 9 4 1 Read before use eaae se erede b he 72 9 4 2 Frorit Pariel 5 otn tette tt cer et e ette e b er et eget tutor es 73 9 4 3 rece ER 4415 74 9 5 TDcontroller REFERENCE GUIDE uu suasana aaa e 75 9 5 1 Linear Section su eee PER a IIR ERREUR aswaa ya sassa 75 9 5 2 Servo Control section a 75 8 113 5 10 NEXO NX242 ES4 Digital Controller for GEO S12 77 10 1 2 Proprietary Functions iie deer 77 10 1 1 Upgradable Firmware vise 5g nS BEP ald baal oe 77 10 1 2 77 10 1 3 Protection EEG P ERR 78 10 2 Trouble shooting susu RE a VERE HE IR XE ERR ee P 79 10 2 1 Operation of Multiple TDcontrollers output 79 10 2 2 Amplifier Power MENU 2 7 2 2 011 0000000 79 10 2 3 Amplifier Gain MENU 2 6 nmn en 79 10 2 4 eri 79 10 2 5
5. 34 5 7 113 8 2 General Description s i Man aiden 35 8 2 1 Described configurations u uu ERE dee REC RT 36 8 2 2 WARNINGS ON GEO 512 ACCESSORIES 2 37 8 3 GEO S12 in fixed installations sa iin ard nhan dea inna aae dan 38 8 3 1 Fixed installation Accessories and 38 8 3 2 Single GEO 12 rigidly mounted on a wall or a ceiling vertical or horizontal 39 8 3 3 Single GEO 512 cable mounted on a wall or a ceiling vertical or horizontal 40 8 3 4 GEO 512 vertical array rigidly mounted on a 41 8 3 5 GEO 512 vertical array cable mounted on ceiling sse 43 8 3 6 GEO 512 horizontal array rigidly mounted on ceiling 44 8 3 7 GEO 512 horizontal array cable mounted on 46 8 4 GEQ S12in Touring applications m b daro AG ua Mire Toa ee bai 47 8 4 1 Niro trm 47 8 4 2 Single GEO 12 on speaker stand or on 8515 48 8 4 3 Single GEO 512 flown nnne 50 8 4 4 Single GEO 512 flown horizontally 51 8 4 5 Two GEO 512 on wind up stand
6. 912 1510 675mm Cai 13 1 3 Diagrams H toa ARUN LEE T o 10 mem GSCG 70 Crea cr Tocontrollar 212 mem GSCG 720 Ye pachaxa mem GEOGH22O 20 UAdabnnd 512 88 113 TECHNICAL SPECIFICATIONS 13 2 GEO 51210 Module 13 2 1 System specifications PRODUCT FEATURES Components Height x Width x Depth Shape Weight net Connectors Construction GEO 51210 HF 1 x 3 voice coil 1 4 throat 16 Ohms driver on a 5 hyperboloid reflective wavesource LF 1 x 12 30cm high excursion neodymium 16 Ohm driver 344 x 675 x 378 mm 13 x 26 gt x 14 7 excluding accessories Rigging axis to axis height 345mm 13 10 Trapezoid 28 05 kg 61 8 Ibs including array assembly system 2 SPEAKON 4 pole In amp Through Baltic birch ply with structured black coating Front finish Flying points SYSTEM SPECIFICATIONS Frequency response a Usable range 6cB a Sensitivity 1W 1m b Peak SPL 1m b Dispersion c Crossover frequencies Nominal impedance Recommended amplifiers 3 GEO 51210 in Parallel 4 GEO 1210 in parallel 6 GEO 1210 in parallel SYSTEM OPERATION Electronic controller Molded Dark Grey Metal Grill Two plates connect
7. 13 2 1 EE OR RB totae na den ai ad 13 2 1 1 GEO 12 connectors eds d du e t ete EE D 13 2 1 2 Configuring Geo 512 for Passive or Active 13 2 1 3 eno LEER 13 2 1 4 ue scm qaot iir koe 14 3 Amplifier Selection for use with GEO S12s 15 3 1 GEO 512 recommended amplification esses essent nennen 15 3 1 1 C rrent ratings eee eG RS CIR 15 3 1 2 tee ec ale a enu pdt t ule teta et 15 3 1 3 cies hh ee o rco eoe ats a 17 3 2 GEO 5125 and NXAMP TDControllers seen ennemis n nnn 17 3 2 1 NXAMP Connectors cited Eee e ec oc e usaq C ec N 17 3 2 2 GEO 5125 NXAMP recommended 18 4 GEO S12 Setups NEXO TD Controllers 19 4 1 Digital NX242 ES4 NXAMP TDCOntrollers 19 4 2 Analogue GEOS12 nnne nnne nnne rennen nnns 20 5 Connection diagrams D 20 5 1 GEO 512 amp RS15 with
8. GEO 512 HARDWARE SETUP PROCEDURE Page 45 113 e 7 Flip the cluster upside down to access connector plates located on the down side e 8 Repeat all above steps from 2 to 6 e 9 Position the two 4 brackets from VNI ABRK kits on the outer cabinets next the angle plates and tight them to the cabinets using the shoulder screws provided with these kits e 10 Four screws 12mm diameter not provided are required to secure the U brackets under the ceiling 46 113 GEO 512 HARDWARE SETUP PROCEDURE 8 3 7 GEO 512 horizontal array cable mounted on a ceiling Required items e 2 x VNI LBRK allows cable suspension for horizontal arrays holes for cable suspension 10mm diameter e N 1 x GPI ANPL for a N x GEO S12 array ANPL1 ranges from 0 2 to 3 15 ANPL2 ranges from 5 to 10 ANPL3 ranges from 16 to 30 4slings and 4 shackles not provided IMPORTANT Ensure that the ceiling is strong enough to hold GEO S12 cluster weight and that the cables suspension system required fixing the cluster under the ceiling is properly dimensioned Procedure e Proceed as in above section VNI LBRK being positioned on the outer cabinets instead of VNI ABRK 4slings and 4 shackle not provid
9. gt v 22 5 _____s lt 160 gt AN WARNING Screws must be secured using Loctite 243 Dimensions 293 j 169 o9 9 Weight 5 5 kg 12 1 Lbs TECHNICAL SPECIFICATIONS Page 103 113 13 4 5 Single GEO 512 U Bracket Parts 04VNI UBRK12 A WARNING Screws must be secured using Loctite 243 Dimensions 3 Le 2 400 712 M Weight 2 9 kg 6 4 Lbs 104 113 TECHNICAL SPECIFICATIONS 13 4 6 L Bracket for cable suspension Parts 04VNI LBRK AN WARNING Screws must be secured using Loctite 2437 Dimensions Y O O O O O O O A 51 O Weight kit 1 75 kg 3 86 Lbs TECHNICAL SPECIFICATIONS Page 105 113 13 4 7 0 Bracket for rigid suspension Parts 04VNI ABRK AN WARNING Screws must be secured using Loctite 2437 Dimensions Weight kit 1 75 kg 3 86 Lbs 106 113 TECHNICAL SPECIFICATIONS 13 4 8 GEO 12 Push Pins 04VXT BL820 04V XT BL820 WEIGHT 0 032 0 07 LBS TECHNICAL SPECIFICATIONS Page 107 113 13 5 GEO S12 Analogue TDcontrollers 13 5 1 Specifications SPECIFICATIONS Output Section
10. 2 51230 Passive 1 x CD18 85 Hz 2x 51210 Active X Over 1 x CD18 85 Hz 2x 51230 Active X Over 1 x CD18 85 Hz GEO 512 2 RS15 omni 35Hz 80Hz 2 x 51210 Passive Wideband amp RS15 2 RS15 omni 35Hz 80Hz 2 x 51230 Passive Wideband 1x RS15 cardio 35Hz 80Hz 1 x 1210 Active Wideband 1 x RS15 cardio 35Hz 80Hz 1 x 1230 Active Wideband 2 RS15 omni 35Hz 80Hz 2 x 51210 Passive X Over 2 RS15 omni 35Hz 80Hz 2 x 51230 Passive 1 x RS15 cardio 35Hz 80Hz 2 x 51210 Passive 1 x RS15 cardio 35Hz 80Hz 2 x 51230 Passive 1 x RS15 cardio 35Hz 80Hz 1 x 51210 Active X Over 1x RS15 cardio 35Hz 80Hz 1 x 51230 Active X Over 20 113 CONNECTION DIAGRAMS 4 2 Analogue GEOS12 TDController GEO 12 TDController parameters have been optimized for 1 x RS15 omni mode mono used in conjunction with 2 x GEO S1210 s or 2 Geo x 51230 5 mono or stereo CONNECTION DIAGRAMS 51 512 8515 with GEOS12 TDController Mono Omni Mode FROM AMPLIFIERS CAUTION oo TO AMPLIFIERS SEE USERMANUAL SENSE IN PUT from amp terminals STEREO IN Speakon 4 1 1 VLF 2 2 N C lt gt 1 1 VLF1 2 20 2 Speakon 4 AMPLIFIER e STEREO AQQ 0 AMPLIFIER 2 VLF1 VLF2 on one amplifier channe
11. Subbass are engaged on the SubBass channel The temperature protection is not monitored e each side of the S12 main system window yellow TEMP and DISP LEDs indicate when protection has been activated temperature or displacement control for the LF the HF drivers temperature protection is not monitored Peak Limiter adjustments The Analogue TDcontroller features two independent peak limiter trims one for the LSsub amplifier section one for the S12 amplifier section which allows the peak limiter to be set to limit the maximum power of the amp without affecting the protections threshold The peak limiter has no real cabinet protection functions it must be tuned to avoid overdriving the amp that in turn can generate obvious clipping noise 74 113 ANALOGUE GEO S12TD CONTROLLER ur BALANCED INPUTS RIGHT BALANCED OUTPUTS CAUTION Sense line must be connected for speaker protection p QD LISTED 10 FE 115 2504 50 10W H vU m Mo iis 0 Zi 38 Ho 3 0 To set the peak limiter to the correct value either turn the trimmer clockwise until the red LED lights at the same time as the amp s clipping LED or use the graduation power value given for 8Qload 9 4 3 Rear Panel Audio Inputs The audio inputs are two 3 pin female XLR connectors
12. To facilitate flying operation an optional link bar with oblong holes GPT TLB pair of link bars provided with two 8x20 quick release pin is available in the GEO S12 accessory range GPT XBOW OPTIONAL GPT TLB LINK BAR To install GPT TLB remove the standard link as well as nut screw and washers When using GPT XBOW for flown setups insert pins in the oblong hole and opposite circular hole REMOVING STANDARD LINK BAR INSERTING PIN FLOWN SETUPS Procedure e Insert GPT XBOW into connecting plates of both sides of the cabinet e Lock safety pins into GEO S12s connecting plate 62 113 GEO 512 HARDWARE SETUP PROCEDURE IMPORTANT Ensure that safety pins are properly locked into GEO 5125 connecting panels IMPORTANT GEO S12 can be flown Left or Right Left means Nexo logo on front grid is left as seen from front Right means Nexo logo on front grid is right as seen from front GEO S12 can be connected to bumper Left or Right by simply flipping the cabinets Whenever possible NEXO recommends symmetrical designs preferably NEXO logo outwards in stereo configurations e Connect bumper to first GEO 512 using lift points of GPT XBOWs ensure quick release pins are properly locked e Insert axis in bumper Geosoft2 predefined hole and secure it with provided R clip NB Bumper holes are numbered 17 to 17 please refer to Geosoft2 to determine axis
13. 22 16 10 dBm typ into 600 Ohm load Back Panel switch on 6 0 6dB respectively Input Section Maximum input Level 22dBu CMRR 80dB 1kHz typ THD N 0 1 1kHz Typ for 10dBm Output Noisefloor S12TD 100 dBV for 0dB switch position 22 Hz 22 kHz UnWeighted Dynamic Range 111 dB UnWeighted THD N at 60dBr sine wave 1kHz rel max output Crosstalk 104dB Filtering amp EQ L amp R 12dB oct Low Pass 12dB oct High pass crossover or overlap 4 Parameter EQs factory tuned Protections VCA temp SUB LF amp LF VCEQ disp SUB amp LF Peak Limiter all chanels Power compression regulation Power Supply 100 250 Volts continuous operation 50 60Hz Power 9W Peak Inrush current 0 5A Earth Lift Conformity Comply with safety objective of 73 23 EEC amp 89 336 EEC directives EN60065 12 2001 EN55103 1996 CB scheme DK 8371 cULus 60065 AZSQ E241312 FCC part15 class B PRODUCT FEATURES Audio Inputs Two differential non floating L amp R Audio inputs 50 Two XLR 3F connectors Sense Inputs Three Amplifier Sense Inputs S12 L amp R LS 400 kOhm 6 Pole Removable Strip Terminal Audio Outputs Two L amp R 512 Audio outputs Balanced non floating 51 Ohm Two XLR 3M One Mono L R LS400 Audio output Balanced non floating 51 Ohm One XLR 3M Controls Gain switch back panel 3 positions 6 0 6dB Peak Limiter trimmer 1200W 600W 8 Ohms for S12 amp Subbass Sub Overlap Crossover switc
14. 86 13 1 GEQ S1230 Moodle er phe shaykuq pataq arie e pare u gs ama eh 86 13 1 1 System 86 13 1 2 Ditmensiorns sn A TE 87 13 1 3 EE 87 13 2 GEO S12T0 Module o mu Qo o Ht ee 88 13 2 1 System 88 13 2 2 DIMENSIONS 3 ite uuu be 89 13 2 3 BETIS EE 89 13 3 GEO S12 Touring Applications Accessories sienne nnne 90 13 3 1 GPTZ BUMPER utt e e cpi Sete PRO e techn tio tuv oen hi Ser 90 13 3 2 GEO 512 Rigging 91 13 3 3 Tension Mode Link Bars for 22 1 2 111 0000000000 92 13 3 4 Lifting RING tende Lcd ede Ld Dente 93 13 3 5 Truss hook for GPT PSBRK or 5 94 13 3 6 Truss hook for single vertical GEO 512 22222 0000000000 95 13 3 7 U Bracket for single vertical GEO 512 96 5 9 113 13 3 8 U Bracket two vertical GEO 512 97 13 3 9 Ground Stacking Device for up to 6 GEO 81210 98 134 S12 Fixed Installations Accessories
15. Displacement Control The Sense input signal is sent to a shaping filter producing a signal whose instantaneous amplitude is proportional to the voice coil excursion This signal after rectification is compared to preset threshold matching the maximum usable value as determined from laboratory measurements Any part of the signal exceeding the threshold is sent to the VCEQ control buffer while the VCEQ acts as an instantaneous very short attack time limiter to prevent displacement from exceeding the maximum permissible value Temperature Control Each sense signal is fed into a shaping filter one per transducer each one producing a signal proportional to the instantaneous current flowing into the voice coil of the transducer After rectification this signal is integrated with attack and release time constants equivalent to the thermal time constants of the voice coil and chassis producing a voltage which is representative of the instantaneous temperature of the voice coil When this voltage reaches the threshold value corresponding to the driver s maximum safe operating temperature the VCA becomes active to reduce the NX242 s output signal level until the effective temperature falls below the maximum usable value In order to avoid detrimental effects induced by very long release time constants produced by the temperature detection signal system output being reduced for an extended period pumping effects etc the
16. NEXO TDcontrollers don t provide a mean to switch off the unit from the front panel As they are intended to be rack mounted the back panel is not accessible during use Therefore it is left to the user to provide a disconnection mean readily operable 9 3 2 Voltage setting NEXO TDcontrollers use a switch mode power supply SMS12 This SMS12 accepts universal AC power input voltages in the range 90V to 264V and requires no manual adjustment for voltages in this range 9 3 3 Mounting the TDcontroller in a rack Grounding shielding amp safety issues The TDcontroller is intended for rack mounting The only accessible part during use shall be the front panel of the TDcontroller Any space above or under the TDcontroller shall be obstructed with a blank panel The rack is a free grounding and shielding structure and it provides extra shielding Therefore it is desirable that the screws used to fix the TDcontroller in the frame or rack provide an electrical contact between the chassis of the TDcontroller and the rack The primary reason for grounding is safety Conformance to the applicable requirements of the authorities having jurisdiction is of course mandatory However grounding also has an impact on electromagnetic compatibility From the EMC point of view it is desirable to have a low impedance ground network as a current flowing in the ground network will then produce low voltage in the network A low impedance network can be obtain
17. The high pass filters are also extremely important as they help control excursion at very low frequencies which is a major feature for system reliability This is one of the main reasons to avoid using setups which are not designed for the cabinet you are using Equalising acoustical response NEXO loudspeakers are acoustically designed for maximum efficiency over their operating bandwidth The NX242 provides the correction required to obtain a flat system response Active rather than passive attenuation allows the lowering of amplifier voltages for a given output SPL and therefore increases the maximum SPL achievable with the same amplifier Active equalisation can also extend a NEXO loudspeaker s frequency response especially at low frequencies where acoustical performance is limited by cabinet size While many DSP processors can provide this type of EQ none can include the extensive measurement facilities and listening tests employed by NEXO R amp D when adjusting NX242 setups for a particular loudspeaker Crossover section Crossover between different bands is tuned for every set up of every cabinet The crossover is designed to ensure the best phase alignment possible throughout the crossover overlap region Each crossover is made to measure in order that each transducer can fit with its neighbour by achieving a perfect phase alignment Unconventional filters are used ranging from 6dB octave to near infinite slopes depending of t
18. e Or1 x Truss hook VNT TCBRK IMPORTANT Ensure that truss suspension point is strong enough to hold GEO S12 weight Procedure e Slide flying bar VNT TTC into GEO 512 connecting plate oblong holes e Lock safety pin into GEO 512 connecting plate IMPORTANT Ensure that safety pin is properly locked into GEO S12 connecting panel Cable suspension e Connect lifting ring VNT XHBRK to flying bar by inserting 8x45 quick release in required holes for proper vertical aiming e Ensure lifting ring is properly locked to flying bar e Connect assembly to suspension point with sling and shackle not provided Truss suspension e Connect truss hook VNT TCBRK to flying bar by inserting 8x45 quick release pin in required holes for proper vertical aiming e Ensure truss hook is properly locked to flying bar e Lift and position assembly lock hook on truss suspension point and secure with hook cable GEO 512 HARDWARE SETUP PROCEDURE Page 51 113 8 4 4 Single GEO 512 flown horizontally Required items e 1x U Bracket for single horizontal GEO 512 GPT SSBRK e 1 Lifting Ring VNT XHBRK e 1 Truss hook VNT TCBRK IMPORTANT Ensure that suspension point is strong enough to hold GEO S12 weight Procedure Slide GPT SSBRK side plates into GEO 512 connecting plate oblong holes e Lock safety pins into GEO S12 connecting plate I
19. Axis R clips and handles to assemble the ground stack device Procedure e Assemble the two connecting beam and the reinforcement beam with the handles e Depending on tilt angle negative null or positive to be achieved there are three positions to connect above assembly to the supporting beams below drawings detail these configurations e Connect the reinforcement bar to the supporting beams according to required tilt angle configuration using 2 axis per side secure the axis with provided R clips 66 113 GEO 512 HARDWARE SETUP PROCEDURE e Insert GPT XBOW into connecting plates of both sides GEO 5125 e Lock safety pins into GEO 5125 connecting plate IMPORTANT Ensure that safety pins are properly locked into GEO 5125 connecting panels e Connect bottom GEO 512 to GPT GSTK Ground stacking device with 4 8x20 quick release pins e Connect second Geo 12 with X Bow front articulation holes and rear link bars and ensure quick release pins are properly locked e Repeat above steps for subsequent GEO 5125 e Once the assembly is completed rotate rear or front GEO 512 ground stack device adjustable legs to definitive tilt angle ensuring that 10 is never exceeded on bottom GEO 12 68 113 GEO 512 HARDWARE SETUP PROCEDURE 8 5 Testing and Maintenance of the system General Geo is a precision piece of equipment and requires regular a
20. BILD 80 10 2 6 Reversed Pattern esses 80 10 2 7 Using the wrong NX242 setups for a given 80 10 2 8 Gontiectlons ui ue n NR ENGINEER EISE EE RS 80 11 System alignment 424 2 2 0 81 11 1 512 Vartical Cluster design 81 11 2 Stacked 1515 CD18 52 GEO SUB Flown GEO 12 2 sse 81 113 Driving the GEO SUB s from the AUX u 82 114 Recommended installation tools equipment 0000 82 12 GEO 512 8515 CD18 S2 GEOSUB System Check List 84 12 1 Are the NX242 Digital TDcontrollers properly 479 84 12 1 1 NX242 settlhigs 84 122 Are the amplifiers properly 2 00200010010000000000000000000 00004000000 ennt 84 123 Are the amps and the NX properly connected 0000000 84 124 the speakers properly connected angled 85 12 5 Final Pre Sound Check Check rr snnt nnn 85 13 Technical SpecifICatiOrns u u u u u tuere UU UU
21. GEO 12 ACCESSORIES WARNING 1T GEO 512 Accessories are specifically rated in agreement with structural computations Never use other accessories including push pins when assembling GEO S12 cabinets than the ones provided by NEXO NEXO will decline responsibility over the entire GEO 12 accessory range if any component is purchased from different supplier WARNING 2 For SAFETY reasons following first generation accessories GEOS12 XBOW GEOS12 TCBRK GEOS12 SSBRK GEOS12 PSBRK GEOS12 TTC Have been recalled in August 2007 and MUST NO LONGER BE USED These accessories have been replaced by GEOS12 XBOW V2 GEOS12 TCBRK V2 GEOS12 SSBRK V2 GEOS12 PSBRK V2 GEOS12 TTC V2 Please contact your local distributor if any doubt in relation the GEO S12 accessories you are using WARNING 3 All GEO S12 accessories have been designed so that cabinets are arrayed in the acoustic coupling plane adjacent waveguides as shown in figures below GEO S12 assemblies in the non coupling plane as shown in figure below are UNSAFE and STRICTLY PROHIBITED 38 113 GEO 512 HARDWARE SETUP PROCEDURE 8 3 GEO 512 in fixed installations 8 3 1 Fixed installation Accessories and kits Accessories are Bumper GPI BUMPER U Bracket VNI UBRK12 L Bracket for cable suspension VNI LBRK U Bracket for rigid suspension VNI ABRK Connecting Plates range 0 20 3 15 GPI ANP
22. GEOS12 TDController Mono Omni 20 5 2 GEO S12 NX242 ES4 4 channels passive mode sese 21 5 8 GEO 12 ALPHA S2 NX242 ES4 Stereo passive mode seen 22 5 4 GEO 12 CD18 NX242 ES4 Stereo passive mode sse 23 5 5 GEO 12 GEO SUB NX242 ES4 Stereo passive mode 24 5 6 GEO 512 NXAMPAx1 Bridge Stereo Passive mode sse 25 5 7 GEO 512 NXAMPAx1 Bridge Stereo Active 26 5 8 GEO 512 4 4 4 Channels Passive sss 27 5 9 GEO 512 NXAMP4x4 Stereo Active 28 6 AERE IIIS e P 29 7 Configurable Directivity Device 30 7 1 Installing amp removing GEO s Configurable Directivity flanges seen 30 7 2 When amp where to use Configurable Directivity flanges nnns 31 8 GEO 512 hardware setup procedure 32 8 1 SAFETY FIRST ioo ERE UE RUE 32 8 1 1 Flown Systems safety e Hu ERU Eee 32 8 1 2 Ground Stacking Safety 33 8 1 3 GORtacis nne utente eA ee uay Ae do e c UA ea
23. Stereo NXAMP4x1 4 x 600 Watts 8 Ohms 2 x 1800 Watts 8 Ohms 4 x 900 Watts 4 Ohms 2 x 2600 Watts 4 Ohms 4 x 1300 Watts 2 Ohms NXAMP4x4 4 x 1900 Watts 8 Ohms 2 x 6600 Watts 8 Ohms 4 x 3300 Watts 4 Ohms 2 x 8000 Watts 4 Ohms 4 x 4000 Watts 2 Ohms 3 2 1 NXAMP connectors NXAMP4x1 and rear panels feature e 4analog inputs outputs links on XLR3 connectors e 4digital inputs outputs RJ45 connectors with optional NX ES104 card 4 speaker level outputs NL4FC connectors 18 113 AMPLIFIER SELECTION FOR USE WITH GEO 5125 Figure below shows connectors implementation on the rear panel Dm i0 7 ss mn HSS 9 7 3 2 2 5125 NXAMP recommended configurations Active Mode 2 channels of 4 1 in Bridge Stereo Mode 2 channels of NXAMP4x4 4 channels mode 2 channels of NXAMP4x4 4 channels mode Passive Mode 1 channel of NXAMP4x1 in Bridge Stereo Mode 1 channel of 4 4 in 4 channels mode 1 channel of 4 channels mode 3 GEO S12 4 GEO S12 GEO 12 SETUPS ON NEXO TD CONTROLLERS Page 19 113 4 GEO S12 SETUPS ON NEXO TD CONTROLLERS 4 1 Digital NX242 ES4 and NXAMP TDControllers At GEO 512 release time 38 setups combining GEO 5125 with NEXO subwo
24. THE FLANGES REMOVING THE SCREWS CONFIGURABLE DIRECTIVITY DEVICE Page 31 113 7 2 When amp where to use Configurable Directivity flanges The diagrams show audience area coverage for a stereo system While the GEO cluster will deliver even SPL from the front to the rear of this audience area there are holes near the front in the centre and at the outside edges We cannot fill the outside coverage gaps without enlarging the centre gap and vice versa left figure below If 120 Configurable Directivity Devices are installed at the bottom cabinet of the clusters coverage will look more like the pattern in right figure below gt y aan 6dB coverage all GEO 512 in 80 configuration 6dB coverage bottom GEO 12 in 120 configuration In curved vertical arrays the 120 Configurable Directivity Device can be used e On the bottom row of curved vertical arrays to fill in coverage gaps in the front rows e On all rows of curved vertical arrays in cases where 120 of horizontal coverage is preferred to 80 Figure below shows isocontour coverage for 80 and 120 configurations 80 AND 120 CONFIGURATIONS ISOCONTOUR COVERAGE 32 113 GEO 12 HARDWARE SETUP PROCEDURE 8 GEO S12 HARDWARE SETUP PROCEDURE Before proceeding with assembly of GEO 512 arrays please ensure that the components are present and undamaged A component list is appended to this manual In
25. aligned systems have lower efficiency i e for the same SPL the system will have to be driven harder activating the displacement amp temperature protection at lower output levels Both sound quality and reliability will decrease as the system is stressed Precautions amp Checks Before using the AUX of a mixing desk ensure that MAIN and AUX outputs are in phase Always apply identical EQ or processing on both channels so that the phase relationship will not be altered Never add additional low pass filtering on the SUB or high pass filtering on the main system Inverting polarity on one channel should always result in a massive difference near the crossover point If that is not the case the system is no longer aligned 11 4 Recommended installation tools and equipment Tape measure should be 30m 100ft in length and be of durable fibre material Have one array available to speed up the installation process e Laser Inclinometer For measuring vertical and horizontal angles in the venue An ideal product is the Calpac Laser projecting a dot version which costs approximately 60 e Digital remote inclinometer with a remote sensor in the bumper and a meter unit at ground level to ensure precise installation of the cluster NEXO GeoSight system predicts the stationary angle SYSTEM ALIGNMENT GUIDELINES Page 83 113 of the array even while it is swinging and has a green laser mounted coincident to and paral
26. detection signal is modulated by another voltage integrated with faster time constants that match the subjective perception of sound level This allows the controller to reduce the effective operating duration of the temperature limiter and make it sound more natural while the efficiency of protection is fully preserved and protection thresholds are kept as high as possible Physiologic Dynamic Control The Physiologic Dynamic Control is intended to avoid unwanted effects produced by long attack time constants By anticipating the operation of the temperature limiter it prevents a high level audio signal appearing suddenly then being kept up for long enough to trigger the temperature limiter Without this a rough and delayed gain variation would result that would be quite noticeable and unnatural NX242 ES4 DIGITAL CONTROLLER FOR GEO 512 Page 79 113 The Physio control voltage acts independently on the VCA with its operation threshold slightly 3 dB above that of the temperature limiter and a low compression ratio its optimised attack time constant allows it to start operating without any subjectively unpleasant transient effects Peak Limiter The peak limiter primary function is to avoid massive clipping of the amplifier which can have some very audible artefacts and in some cases may be damaging to the loudspeakers Modulation of the amplifiers supply voltage rails can create very low frequencies or high frequency high leve
27. in the last section of User Manuals NS 1 is a freeware available for all Nexo users Please contact your local distributor for licensing procedure IMPORTANT Never install a GEO S12 cluster without checking its acoustical performances and mechanical safety in NS 1 prior to installation Any question or bug report please contact technical nexo fr AD ARAY DESEA TKT NS 1 GEO S12 ACOUSTIC PAGE CONFIGURABLE DIRECTIVITY DEVICE Page 30 113 CONFIGURABLE DIRECTIVITY DEVICE The GEO Wavesource controls dispersion of acoustic energy using an hyperboloid acoustical reflector in the coupling plane the vertical plane of a curved vertical tangent array and a diffraction slot in the non coupling plane the horizontal plane of a curved vertical tangent array The patented Configurable Directivity Device consists of bolt on flanges that alter the diffraction slot s exit flare rate 7 1 Installing amp removing GEO s Configurable Directivity flanges GEO 512 are shipped in the 80 dispersion configuration 120 flanges is an optional accessory To change dispersion in the non coupling plane to 120 e Remove the front grill drawings below Remove the three TORX 5x25 screws per flange on each side of the GEO Waveguide drawings below e Install the 120 flanges with the six TORX screws Re install the grid being careful that the NEXO logo must be on the 12 loudspeaker side REMOVING THE GRILL REPLACING
28. listener position being the distance from GEO SUB to listener position the distance difference is then r r specified meters or feet gt the delay should be set on the CD18 52 GEO SUB NX242 TDcontroller channel r lt r the delay should be set on the GEO 512 NX242 TDcontroller channel e Toconvert the result in time delay specified in seconds apply e At r r Cr and r in meters C sound speed 343 m S The delay parameter is set in MENU 1 2 set the units to meters feet or seconds according to your preference Delay will have to be adjusted according to the distance difference r r see figure below 82 113 SYSTEM ALIGNMENT GUIDELINES 11 3 Driving the GEO SUB s from the AUX send It is quite common to use the AUX send of a mixing desk to drive the Sub section of a PA system This gives the mixing engineer more flexibility to set the level of the subbass relative to the main PA apply special effects or to use a different EQ on the Sub However it also raises some serious issues for the performance amp safety of the system mostly time alignment At NEXO great care is taken to design optimum phase alignment from one octave above to one octave below the crossover frequency point By doing so drivers are working perfectly together and providing the best efficiency possible It is then up to the user to adjust the delay on the NX242 to match the physical path differe
29. located in the area labeled BALANCED INPUTS Signal is applied between pins 2 and 3 pin 1 is connected to ground When the Controller is linked to a signal source with balanced outputs the XLR connections are simply wired pin to pin 1 to 1 etc As a result of the balanced nature of the outputs and providing that balancing is respected by way of the connection to the amplifier there is no hot or cold pin the Analogue TDcontroller being neutral regarding the polarity of the signal Output Level Switch The 3 position output level switch is used to match the processor gain to the amplifier gain for optimum signal to noise ratio The three gain values available 6 0 or 6 dB For minimum noise floor the 6dB setting should be chosen for maximum headroom the 6dB position should be used Audio Outputs The audio outputs are the three 3 pin male XLRs located in the area labeled BALANCED OUTPUTS The channel corresponding to each output connector is identified by the labels Left Right and Sub L R mono SubBass Signal is applied between pins 2 and 3 pin 1 is connected to ground When used with an amplifier with balanced inputs the wiring of the output XLR is simply pin to pin 1 to 1 etc the polarity of the signal being preserved if the source connected to the input is also balanced see previous section Sense inputs The sense inputs of the three channels left right and SUB are arranged on a six pole barrier strip s
30. pin 1 on both sides For more wiring recommendations please refer to the application note in the NX242 manual update SYSTEM ALIGNMENT GUIDELINES Page 81 113 11 SYSTEM ALIGNMENT GUIDELINES 11 11 The NX242 s factory delay presets are optimised to provide the best possible crossover between the GEO 512 and CD18 52 GEO SUB systems The reference point for this adjustment is the front of each cabinet This means that the internal delays needed to achieve a correct time alignment are set for cabinets standing next to each other with both fronts aligned We recommend that the system is adjusted so that arrivals from GEO 512 and CD18 52 GEO SUB are coincident at a fairly distant listening position 1 GEO 12 Vertical Cluster design Cluster design must be done with NS 1 previously Geosoft2 which provides very intuitive and fast method to determine all cluster geometry parameters in relation to venue where cluster is implemented NS 1 is a freeware available for all Nexo users Please contact your local distributor for licensing procedure IMPORTANT Never install a GEO S12 cluster without checking its acoustical performances and mechanical safety in NS 1 prior to installation Please contact your local distributor for assistance and or training NS 1 2 Stacked 8515 CD18 S2 GEO SUB and Flown GEO 512 Recommended NX242 GEOS12 setup family X OVER In the example below r being the distance from GEO 512 array to
31. position in relation to bumper angle requirements If bumper is flown with 2 hoists then they should be connected to holes 2 17 and 17 616191916197976767976767976 7679167 e Connect hoist hook to bumper axis and lift assembly to sufficient height order to connect a second GEO 12 e Connect second Geo 12 with X Bow front articulation holes and rear link bars and ensure quick release pins are properly locked e Repeat above steps for subsequent GEO 5125 GEO 512 HARDWARE SETUP PROCEDURE Page 63 113 IMPORTANT Ensure angle settings are identical on both sides of the cabinets Ensure that safety pins are properly locked into GEO S12s connecting panels Ensure that all quick release pins are properly locked into their position e cluster to Geosoft2 defined rigging height secure cluster horizontally to prevent it from rotating e Secure bumper with secondary safety steel IMPORTANT The requirements for secondary safety systems vary with territories However the secondary safety steel MUST have a SWL equivalent or greater than that of the rigging system 64 113 GEO 12 HARDWARE SETUP PROCEDURE 8 4 9 Ground stacked GEO 1210 Required items e N Pair of Rigging Plates GPT XBOW for cabinets e 1 ground stack device GPT GSTK 4xN Quick release pins for cabinets IMPORTANT Ground stack device GPT GSTK is rated for a maximum
32. power MENU 2 7 is set to a value below the amplifer s actual power the peak limiter of the NX242 will trigger continually creating audible distortion Please note that this peak limiter is not set to act as a compressor on the signal It is intended to minimize the clipping of the amplifier by operating slightly after the amplifier s clipping point One way to properly adjust this parameter is to set amplifier power at maximum 5000W and decrease the value until the amplifier and TDcontroller clip at the same time 10 2 3 Amplifier Gain MENU 2 6 It is very important to check the gain of each channel These values should be set in agreement with amplifier gain The second line of the MENU2 6 displays the gain as seen by the NX242 to ease the setting of this parameter 10 2 4 Gains If your amplifier gains are not the same on each channel you will have to adjust the inter channel gain in order to compensate for this amplifier gain difference 80 113 NX242 ES4 DIGITAL CONTROLLER FOR GEO 512 10 2 5 Delays Multiple NX242 s can be used on a single GEO S12 array When changing the delay in one NX242 TDcontroller that is part of a multi controller system take great care to have exactly the same delay setting in all NX242 TDcontrollers that receive the same input signal i e all NX242 s that are fed from the Left output of the mixing console should have the same delay settings A Tangent Array is very sensitive to
33. rain moistu alert the user to the presence of presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons important operating and maintenance servicing instructions in the literature accompanying the appliance To avoid electrical shock do not remove covers Dangerous voltages exist inside Refer all servicing to qualified personnel only PLEASE READ CAREFULLY BEFORE PROCEEDING Page 5 113 HIGH SOUND PRESSURE LEVELS Exposure to extremely high noise levels may cause permanent hearing loss Individuals vary considerably in susceptibility to noise induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient period of time U S Government s Occupational and Health Administration has specified the following permissible noise level exposures Sound Duration Per Day In Hours Sound Level dBA Slow Response 8 90 6 92 4 65 3 97 2 100 1 102 1 105 110 1 4 less 115 According to OSHA any exposure excess of the above permissible limits could result in some hearing loss Ear plugs or protectors to the ear canals or over the ears must be worn when operating this amplification system in order to prevent permanent hearing loss if exposure is in excess of the limits as set forth
34. the event of any shortage please contact your supplier For maximum efficiency the GEO S12 rigging system requires three experienced persons for set up typically one motor hoist operator and one GEO S12 operator per side of the array Good synchronisation and crosscheck between the operators are key elements for a reliable and safe set up 8 1 SAFETY FIRST GEO 12 Rigging System structural computations and related documents are available in Geosoft2 or at Nexo info nexo fr upon request We include this section to remind you of safe practice when flying the GEO 512 system Please read it carefully However user must always apply his or her knowledge experience and common sense If in any doubt seek advice from your supplier or NEXO agent This manual offers guidance only for GEO S12 loudspeaker systems References in this manual to other rigging equipment such as motor hoists steels shackles etc are made to clarify the description of GEO 512 procedures The user must ensure that operators are properly trained by other agencies in the use of these items The GEO 12 Rigging System has been optimised for the deployment of curved vertical or horizontal tangent arrays of GEO S12 loudspeakers Angle adjustment between cabinets has been limited to specific settings to ensure correct acoustic coupling The GEO 12 Rigging System is a professional precision tool set and should be handled with extreme care Only persons who are fully conver
35. to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help The user may find the following booklet prepared by the Federal Communications Commission helpful How to identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington D C 20402 Stock No 004 000 00345 4 Use of a shielded cable is required to comply within Class B limits of Part 15 of FCC Rules Pursuant to Part 15 21 of the FCC Rules any changes or modifications to this equipment not expressly approved by S A may cau
36. without opening the amplifier casing In cases where you don t know the gain of your amplifier or want to check it please follow this procedure 1 Unplug any loudspeakers from the amplifier outputs 2 With a signal generator feed a sine wave at 1000Hz at a known voltage say 0 5V to the input of the amplifier under test 3 Measure the voltage at the output of the amplifier 4 Calculate the gain using the formula Gain 20 Some examples Vin Gain 32dB 37dB 1 4V sensitivity 1350Wrms 0 1V 1V 2V 4V 7 1 V 0 5 V 5V 10V 20V 35 4V 1V 10V 20V 40 V 70 8 V Remember that constant sensitivity settings will give a different gain value when the amplifier power is different NEXO recommends low gain amplifiers 26dB is recommended as it is at the same time adequately low and quite common amongst amplifier manufacturers This gain setting improves signal to noise ratio and allows all preceding electronic equipment including the NX242 TDcontroller or GEO S12 TDController to operate at optimum level Remember that using a high gain amplifier will raise the noise floor proportionally Operating Mode Most two channel amplifiers available on the pro audio market have the following operating modes Stereo two fully independent channels deliver identical power into identical loads NEXO recommends Stereo Mode for all amplifier channels feeding GEO S 12 s Bridge Mono the second signa
37. 1 1 2 factor for hoist or motor acceleration NEVER attach any item to the GEO 512 system other than the GEO S12 accessories When flying outdoor systems ensure that the system is not exposed to excessive wind or snow loads and is protected from rainfall The GEO 512 Rigging System requires regular inspection and testing by a competent test centre NEXO recommend that the system is load tested and certified annually or more frequently if local regulations require When de rigging the system ensure that the same duty of care is given to the procedure as for the installation Pack GEO 512 components carefully to prevent damage in transit 8 1 2 Ground Stacking Safety Statistically many more injuries occur due to unstable ground stacked PA systems than those associated with flown systems There are several reasons for this fact however the message is clear Always survey the supporting structure upon which a ground stack is to be built Always look beneath PA wings to inspect the deck support and if necessary ask for the stage scrims and dressings be removed to allow access If the stage surface slopes as it does in some theatres ensure that the system is prevented from sliding forwards due to vibration This may require the fitting of timber battens to the stage floor For outdoor systems ensure that that the system is protected from wind forces which might cause the ground stack to become unstable Wind forces can be huge especially up
38. 2 2001 Audio video and similar electronic apparatus Electrical Safety US UL60065 Seventh Edition dated June 30 2003 category AZSQ E241312 Electrical Safety CAN CSA C22 2 N 60065 03 Edition dated April 2003 category AZSQ7 E241312 Electrical Safety Rest of the World CB test certificate DK 8371 based on IEC60065 2001 7nd ed with all national deviations Radiated Emission EU EN55103 1 1996 Electromagnetic compatibility Product family standard for audio video audio visual and entertainment lighting control apparatus for professional use Radiated Emission US FFC part15 class B Radiated Emission CAN This Class B digital apparatus complies with Canadian ICES 003 RF Immunity EU EN55103 2 1996 Electromagnetic compatibility Product family standard for audio video audio visual and entertainment lighting control apparatus for professional use Note EMC conformance testing is based on the use of recommended cable types The use of other cable types may degrade EMC performances Audio Equip 10CE 9 2 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus
39. 2 with accessory tray Flight Case for 3 GEOS12 equipped with XBOWS Flight Case for 2 GEO 512 bumpers and accessories 112 113 USER NOTES 15 USER NOTES USER NOTES Page 113 113 France Nexo S A Parc d activit de la dame jeanne F 60128 PLAILLY Tel 33 3 44 99 00 70 Fax 33 3 44 99 00 30 E mail info nexo fr WWW nexo sa com
40. 3 screws fastening the top panel The ST1 jumper is located near the Input XLR The PIN1 being the PIN closest of the Input XLR Strap PIN 1 2 B in the drawing in order to drive the sub only from input R Strapping Pin 2 3 labeled A factory default will provide the summation of channel R amp L 9 5 TDcontroller REFERENCE GUIDE 9 5 1 Linear section The characteristics of the linear section are independent of signal level as opposed to the servo control functions described in next paragraph Subsonic and VHF filtering Low and high pass filters are used to remove signals out of the usable frequency range eliminating sub and ultra sonic components that could possibly degrade the performance of the Controller and amplifiers These filters are optimized to realize the overall target system response Equalizing acoustical response This equalization section provides the required correction to obtain a flat system response as the cabinets are acoustically designed for maximum efficiency in the whole frequency range Active rather than passive attenuation allows amplifier voltages to be lowering for a given output SPL and therefore increases the maximum SPL achievable with the same amplifier Active equalization also extends system bandpass especially at low frequencies where acoustical performance is limited by cabinet size S12 Subbass Cross Over From input signals summed together the resulting mono signal is low pass filtered to fe
41. 585 9869 Fax 413 585 9872 KT1 SDU Surrey school rigstar com ENGLAND Telephone 44 0 181 392 0180 ESTA Entertainment Services amp Technology Association 875 Sixth Avenue Suite 1005 NEW YORK NY 10001 USA Phone 212 244 1505 Fax 212 244 1502 info esta org www esta org GEO 512 HARDWARE SETUP PROCEDURE Page 35 113 8 2 General Description GEO 51230 GEO 51210 GEO 51230 and GEO 51210 incorporate two connecting plates one per side on which comprehensive range of accessories can be mounted C GEO S12 CONNECTING PLATES Oblong holes for Touring Applications Accessories Tapped holes for Fixed Installation Accessories There are two families of accessories e fixed installation accessories which are designed to be screwed on the connecting plates e touring accessories which can be installed or removed with a quick connecting system 36 113 GEO 512 HARDWARE SETUP PROCEDURE 8 2 1 Described configurations SECTION 8 3 fC um 2 4 FIXED INSTALLATIONS pe SECTION 8 4 7 __ r 2 uy M 5 N SECTION 8 4 08 P E SECTION 8 4 5 SECTION 8 4 2 ky WR TOURING APPLICATIONS GEO 512 HARDWARE SETUP PROCEDURE Page 37 113 8 2 2 WARNINGS ON
42. EL DRAWING GPT BUMPER GPT XBOW GPT TLB VNT XHBRK VNT TCBRK DESCRIPTION Main GEOS12 Bumper for touring application Rigging plates for touring applications pair Link Legs for GPT XBOW with Oblong Holes pair includes 2 8x20 Quick Release Pins BL820 8x20 Quick Release Pin Geo 58 GeoS12 15 Lifting Ring for GPT SSBRK or GPT PSBRK or GPT XBOW includes 8x45 Quick Release Pin Truss hook for GPT SSBRK or GPT PSBRK or GPT XBOW includes 8x45 Quick Release Pin GEO 512 SERIES PARTS amp ACCESSORIES LIST Page 111 113 GPT SSBRK GPT PSBRK GPI BUMPER GPI ANPL1 GPI ANPL2 GPI ANPL3 VNI UBRK12 DRAWING DESCRIPTION Truss hook for single vertical GEO 512 U Bracket for single horizontal GEO S12 on tripod or on truss hook or lifting ring U Bracket for two GEO 512 on subwoofer pole stand or on truss hook or on lifting ring Ground Stack Device for up to 6 Geo 51210 Main GEOS 12 Bumper for fixed installation Connecting Plates range 0 20 3 15 for fixed installation Connecting Plates range 5 00 10 00 for fixed installation Connecting Plates range 16 00 30 00 for fixed installation U Bracket for fixed installation L Bracket for cable suspension for fixed installation VNI ABRK U Bracket for rigid suspension for fixed installation GPT 2CASE GPT 3CASE GPT BCASE Flight Case for 2 GEO S1
43. GEO S12 Active rallel 5 3 Ohms load Channel 1 LF in Active Mode or LF HF in Passive Mode 1750 to 3100 W 4 Ohms 1750 to 3100 W 4 Ohms Channel 2 HF in Active Mode 875to 1550 W 4 Ohms 3 in parallel 5 3 Ohms load GEO S12 Passive Mode 4in parallel 4 Ohms load GEO S12 Active Mode 4 parallel 4 Ohms load GEO S12 Passive Mode parallel 2 7 Ohms load GEO S12 Active Mode parallel 2 7 Ohms load 2000 W to 3600 W 4 Ohms 2000 to 3600 W 4 Ohms 1000 to 1800 W 4 Ohms 3300 to 6000 W 2 Ohms 3300 to 6000 W 2 Ohms 1650 to 3000 W 2 Ohms 3 1 1 Current rating It is very important that the amplifier behaves correctly under low load conditions A speaker system is reactive by nature on transient signals like music it will require four to ten times more instantaneous current than its nominal impedance would indicate Amplifiers are generally specified by continuous RMS power into resistive loads however the only useful information about current capacity is the specification into a 2 Ohm load It is possible to perform an amplifier listening test by loading the amps with twice the number of cabinets considered for the application 2 speakers per channel instead of one 4 instead of 2 and running the amps up to the onset of clipping If the signal does not noticeably deteriorate the amplifier is well
44. L 1 Connecting Plates range 5 00 10 0 GPI ANPL2 Connecting Plates range 16 0 30 0 GPI ANPL3 Please refer to section 13 4 of this manual for more information of above references IMPORTANT In order to prevent screws from getting loose in fixed installations use blocking liquid LOCTITE 243 or equivalent for all screws used with GEO S12 fixed installation accessories LOCTITE 243 is available at NEXO or at your local distributor upon request GPI BUMPER VNI UBRK12 VNI LBRK NES ooooooo coooooo 500 o o 5 227 9000000 9 GPI ANPL1 GPI ANPL2 GPI ANPL3 GEO 512 HARDWARE SETUP PROCEDURE Page 39 113 8 3 2 Single GEO 12 rigidly mounted on a wall or a ceiling vertical or horizontal Required items e 1x GEOS12 UBRK allows all angles to be implemented e 4x 12mm diameter screws not provided IMPORTANT Ensure that the surface wall or ceiling is strong enough to hold GEO S12 weight and that the for screws 12mm diameter and corresponding plugs required to fix the U bracket on the wall or under the ceiling are properly dimensioned Procedure e For screws 12mm diameter not provided are required to secure the U Bracket on the wall or ceiling e Remove the four TORX screws holding connector plates on both sides of GEO 512 e Fil each screw hole with Lockti
45. MPORTANT Ensure that safety pins are properly locked into GEO S12 connecting panels e Position U bracket over these side plates align centre holes e Insert adjustment handles adjust vertical angle and tight the handles to prevent GEO 512 from rotating around U bracket Cable suspension e Connect lifting ring VNT XHBRK to U bracket by inserting 8x45 quick release pin dedicated holes e Ensure lifting ring is properly locked to U bracket e Connect assembly to suspension point with sling and shackle not provided Truss suspension e Connect truss hook VNT TCBRK to U bracket by inserting 8x45 quick release pin in dedicated holes e Ensure truss hook is properly locked to U bracket e Lift and position assembly lock hook on truss suspension point and secure with hook cable 52 113 GEO 512 HARDWARE SETUP PROCEDURE 8 4 5 Two GEO 12 on wind up stand or on RS15 horizontally Required items e 1xU Bracket for two GEO 512 GPT PSBRK e 1x Wind Up stand diameter 35mm Eurotruss ES160 or equivalent e OrNEXOPS pole stand PLSTD for mounting on top of RS15 IMPORTANT WIND UP STAND Wind Up stand must be rated for assembly weight 80kg rated load min Wind Up stand must always be installed on a horizontal surface Stand height and footprint must be defined to prevent assembly from collapsing Ensure that public is not allowed within a safety area which rad
46. NEXO 75 GEO 512 Series Geo 51210 amp Geo 51230 Tangent Array Modules Geo S12 Analog TD Controller User Manual 12 Series User Manual V1 04 GEO S Date 31 08 2010 2 113 PLEASE READ CAREFULLY BEFORE PROCEEDING GEO Technology is radically new thinking The GEO R amp D Project has to date resulted in the following patent applications e The GEO Hyperboloid Reflective Wavesource differs radically from the megaphone variant type horns you know and love or hate Tried and true methods will produce entirely unexpected results HRW technology produces precise and predictable results e The Configurable Directivity Flange A waveguide that allows the operator to alter its behaviour An unprecedented NEXO development that is easy to use once you know how and when e The Directivity Phase Device needs no operator input to function but it is reassuring to know that the coupling of the midrange of the system is considered as important as the high frequencies DSP driven Directional Sub bass devices are a new approach to controlling acoustic energy GEO is not hard to use when you understand how The technology behind GEO is revolutionary but it is grounded in years of practical experience with the problems of delivering high quality professional sound to large audiences at high SPL levels The GEO toolbox includes GEOSoft a simple yet powerful and highly predictive design tool Th
47. NEXO proprietary sophisticated DSP algorithm which require additional resources from the NX Tension 54 Card available GEO 512 setups require that NX ES4 card is installed in NX242 TD Controller 10 1 NX242 Proprietary Functions NX242 is much more than a generic Digital Signal Processor It provides all the standard functions that you expect from this type of unit but its real value is the interface between you and your speaker system The NX242 includes a number of proprietary functions developed and refined during NEXO s 20 years of loudspeaker development experience to ensure that your PA delivers maximum performance and reliability 10 1 1 Upgradable Firmware releases regular firmware updates Each new release is the result of our ongoing R amp D program combined with user feedback from the field New firmware releases can include new setups for different combinations of NEXO full range loudspeakers and subwoofers improvements to existing setups and new software functions The NX242 is thus evolving with each of those releases profiting from the latest discoveries of NEXO s R amp D department as well as the experience of NEXO users 10 1 2 EQ amp Filtering Subsonic and VHF filtering Low and high pass filters are used to filter out frequencies that could possibly degrade the performance of the TDcontroller and amplifiers The filters are optimised to work in conjunction with overall system response
48. NS 1 SIMULATION SOFTWARE NS 1 software is a R amp D simulation tool derived application It processes measured speaker data with complex mathematical algorithms to assist the user in optimizing system design Due to the complexity of the interaction of multiple cabinets it is simply not possible to reliably design curved vertical arrays without using the processing power of a computer to predict the optimum array structure for a given audience geometry The design logic is far more complex than looking at a section drawing of the venue measuring the overall angle needed to cover the audience from the cluster location and dividing by 10 degrees to determine the required amount number of GEO 51210 cabinets NS 1 is an easy to use tool that allows to shape the energy leaving the cluster to fit the audience It predicts pressure levels radiated from the system to ensure enough cabinets are provided for the application as well as mechanical constraints for safe flown systems In addition it provides mechanical information for all clusters in agreement with Structural Analysis Reports available in the Help section dimensions weight gravity center position forces moments working load and safety factor Geo S12 Structural Analysis Reports have been validated by German Certification Organization RWTUV systems GmbH NS 1 installation package includes all NEXO User Manuals Structural Analysis Reports and Certificates PDF files which can be found
49. ONT REAR IN Speakon 4 STEREO STEREO Speakon 4 1 1 N C 2 2 FULL RANGE 4 4 GEOS12 STEREO WITH CD18 MONO 24 113 CONNECTION DIAGRAMS 5 5 GEO 512 GEO SUB NX242 ES4 Stereo passive mode FROM AMPLIFIERS TO AMPLIFIERS GEOS12 GEOS12 SUB SUB RIGHT LEFT FRONT REAR Speakon 4 STEREO AMPLIFIER 2 Speakon 4 1 1 N C 2 2 FULL RANGE Speakon 4 Speakon 4 GEOS12 STEREO MODE WITH GEO SUB MONO CONNECTION DIAGRAMS Page 25 113 5 6 GEO 12 NXAMP4x1 Bridge Stereo Passive mode E aade 26 113 CONNECTION DIAGRAMS 5 7 GEO S12 1 Bridge Stereo Active mode CONNECTION DIAGRAMS Page 27 113 5 8 GEO 512 NXAMP4x4 4 Channels Passive mode 1 88 28 113 CONNECTION DIAGRAMS 5 9 GEO 512 4 Stereo Active mode se s 5 1 SIMULATION SOFTWARE Page 29 113 6
50. STK gt x4 s x 8 2 Service Equipment Storage Pattern Dimensions Weight kit 26 5 kg 58 4 Lbs TECHNICAL SPECIFICATIONS Page 99 113 13 4 GEO S12 Fixed Installations Accessories 13 4 1 GEO 12 Bumper Parts 04GPI BUMPER A WARNING Screws must be secured using Loctite 2437 Dimensions 4 691 Weight kit 14 5 kg 32 Lbs 100 113 TECHNICAL SPECIFICATIONS 13 4 2 GEO 12 Connecting Plate 1 Parts 04GPI ANPL1 vv 1 a o 0000000 5000000 Ooooooo 5 e A WARNING Screws must be secured using Loctite 243 Dimensions 313 0000000 0000000 9900000 0000 Weight kit 7 5 16 5 Lbs TECHNICAL SPECIFICATIONS Page 101 113 13 4 3 GEO 12 Connecting Plate 2 Parts 04GPI ANPL2 5 0 6 3 8 0 10 02 A WARNING Screws must be secured using Loctite 2437 Dimensions al H H pe H Weight kit 6 2 kg 13 7 Lbs 102 113 TECHNICAL SPECIFICATIONS 13 4 4 GEO 12 Connecting Plate 3 Parts 04GPI ANPL3 lt 300
51. TURES GEO 51230 Components HF 1 x 3 voice coil 1 4 throat 16 Ohms driver on a 5 hyperboloid reflective wavesource LF 1 x 12 30cm high excursion neodymium 16 Ohm driver 344 x 675 x 400 mm 13 7 x 26 7 x15 excluding accessories Rigging axis to axis height 345mm 13 7 30 Trapezoid Height x Width x Depth Shape Weight net 26 8 kg 59 1 Ibs excluding accessories Connectors 2 x NL4MP SPEAKON 4 pole In amp Through Construction Baltic birch ply with structured black coating Front finish Molded Dark Grey Metal Grill Flying points Two plates connecting with external accessories Intercabinet angle adjustments 16 22 5 30 SYSTEM SPECIFICATIONS GEO 1230 with NX242 TDcontroller amp NX tension Card Frequency response a 53 Hz 19 kHz 3 dB Usable range 6cB a 50 Hz 20 kHz Sensitivity 1W 1m b 103 dB SPL nominal Peak SPL 1m b 131 to 133dB Peak for 500 to 900 W RMS Amplifier Dispersion c Coupling Plane 28 5 Non Coupling Plane Configurable 80 120 Crossover frequencies LF HF 1 1 kHz Passive or Active internally configurable Nominal impedance HF 16 Ohms LF 16 Ohms Recommended amplifiers HF 875 to 1550 Watts into 4 Ohms 3 GEO 51230 in Parallel LF 1750 to 3100 Watts into 4 Ohms HF 1000 to 1800 Watts into 4 Ohms 4 GEO 1230 in parallel LF 2000 to 3600 Watts into 4 Ohms HF 1650 to 3000 Watts i
52. above To ensure against potentially dangerous exposure to high sound pressure levels it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while this unit is in DISPOSAL OF OLD ELECTRICAL amp ELECTRONIC EQUIPMENT This symbol on the product or on its packaging indicates that it shall not be treated as household waste Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronic equipment By ensuring this product is disposed of correctly you will help prevent potential negative consequence for the environment and human health which could otherwise be caused by inappropriate waste handling of this product The recycling of materials will help to conserve natural resources For more detailed information about recycling of this product please contact your local city office your household waste disposal service or the shop where you purchased the product 6 113 5 CONTENTS PLEASE READ CAREFULLY BEFORE PROCEEDING 4 0404844121 3 esie R 6 1 65 p 10 2 GEO 12 General Set up Instructions
53. adapted overheating after approximately ten minutes is normal but thermal protection must not operate too quickly after starting this test 3 1 2 Amplifier settings Gain value Gain is the key to correct alignment of the system It is especially important to know the gain of all amplifiers used in your set up The tolerance should be about 0 5 dB In practice this can be difficult to achieve because 16 113 AMPLIFIER SELECTION FOR USE WITH GEO 5125 Some amplifier brands have an identical input sensitivity for models of different power rating this infers a different voltage gain for each model For example a range of amplifiers with different power outputs all having a published input sensitivity of 775mV OdBm or 1 55V 6dBm will have a wide range of actual gains the higher the power the greater the gain Various other brands may offer constant gain but only within a given product range for example they may fit fixed input sensitivity only on their semi professional amps Even if a manufacturer applies the constant gain rule to all models the value selected will not necessarily be the same as that chosen by other manufacturers Some products can exhibit manufacturing tolerances for the same model of 1dB or more Some amplifiers may have been modified possibly without any label indicating the new values Others may have gain switches fitted internally where it is impossible for the user to verify the actual setting
54. ar RS15 Front GEO S12 LF GEOS12 HF CD18 GEOS12 Active Mono CD18 Rear CD18 Front GEO S12 LF GEOS12 GEO SUB GEOS12 Active Mono GEO SUB Rear GEO SUB Front GEO S12 LF GEOS12 HF Output parameters Amp Amp Global Global Sense ArrayEQ Headrom Gain 2 Power 2 Gain Delay Gain o 4 Ali channes 2698 048 oms 5 1 Local gain and delay values are inter locked channel 1 amp 2 2 values for recommended amplifier gain and power should be set in agreement with selected amplifiers specifications 3 Should be in agreement with implemented cluster acts on a shelving filter designed to compensate for LF coupling 4 Disabled when using digital inputs 12 2 Are the amplifiers properly configured Gain Switch Limiter High Pass All channels Stereo 26 dB None None 12 3 Are the amps and the NX properly connected Check that the sense lines on the NX242 s are properly connected by applying a signal to the corresponding output and verify that the correct Sense LED illuminates GEO 512 515 CD18 S2 GEOSUB SYSTEM CHECK LIST 85 113 12 4 Are the speakers properly connected and angled 2 Attach the first series of modules to the bumper Before flying verify that all channels of all modules are functioning properly Make sure that each RS15 CD18 GEO SUB is producing the proper front rear summation when listening from behind the array switch the front d
55. ble length Lmax for such a cluster is 10 meters IMPORTANT Long speaker cables induce capacitive effects up to hundreds of pF depending on the quality of the cable with a low pass effect on high frequencies If long speaker cables must be used ensure that they do not remain coiled while in use AMPLIFIER SELECTION FOR USE WITH GEO 5128 Page 15 113 AMPLIFIER SELECTION FOR USE WITH GEO S12s NEXO recommends high power amplifiers in all cases Budget constraints are the only reason to select lower power amplifiers A lower power amplifier will not reduce the chances of driver damage due to over excursion and may actually increase the risk of thermal damage due to sustained clipping If an incident occurs on an installation without protection the fact that amplifiers only generating half their rated output power 3dB are used will not change anything in respect of possible damage This is due to the fact that the RMS power handling of the weakest component in the system is always 6 to 10 dB lower than the amplifier rating 3 1 GEO S12 recommended amplification GEO S12 is rated for very high power handling and has a 16 Ohms nominal impedance in passive mode or 2 x 16 Ohms nominal impedance in active mode These high impedance values allow connection of 3 to 6 cabinets in parallel for each amplifier channel Nexo recommends amplifiers in agreement with table below Recommended Amplifier GEO 512 Passive 3in pa
56. channel although this has no effect on the internal operation of the TDcontroller it can be cured by short circuiting the terminals of the inactive sense line 9 3 6 Recommendations for wiring the audio outputs The output stages can drive several amplifiers in parallel however it is not advisable to work with loads of less than 1kOhm and strictly forbidden to drive less than 600Ohms It is best to check the impedance characteristics of the amplifier inputs supplied by the manufacturer to check how many amplifier channels can be paralleled Where precise information is not available and taking 10kOhm as the minimum value possible ten channels in parallel per output is a sensible maximum 9 3 7 Electromagnetic environments The emission this word describes all types of electromagnetic noise radiated by the equipment requirements which have been applied to Nexo s TDcontrollers are the stringent requirements of the Commercial and light industrial environment of the product family EMC standard for emission The immunity this word describes the ability to cope with electromagnetic disturbance generated by other items and natural phenomena requirements that we have considered exceed those applicable to the Commercial and light industrial environment of the product family EMC standard for immunity In order to provide a further safety margin we recommend that you do not operate the TDcontrollers in the presence of electromagnetic interfere
57. control for RS15 subwoofer in omnidirectional mode associated to Geo S12 It has 2 analogue inputs Left and Right and 3 analogue outputs RS15 Mono Omni GeoS12 Left and GeoS12 Right e NX242 ES4 Digital TDController provides comprehensive control of GEO S12 loudspeakers in multiple configurations It allows Ethersound digital audio networking as well as remote control for all units in the network It has 2 analogue 4 digital inputs and 4 analogue 4 digital outputs IMPORTANT NX242 must be equipped with NX Tension Card ES4 or CAI to access GEO S12 setups e NXAMP4x1 and 4x4 are Powered Digital Controllers providing full control and amplification for RS15 in multiple configurations Both devices feature 4 analogue inputs and 4 speaker outputs When equipped with optional card 4 digital inputs in Ethersound digital audio network format as well as remote control for all units in the network become available For a complete description of these controllers please refer to User Manuals The NX242 and NXAMP DSP algorithms and parameters are fixed in software and updated regularly Please consult the NEXO web site www nexo fr for the latest software releases ENX GeoD Passive mode Crossover 80Hz __ 12 113 INTRODUCTION e NS 1 simulation software previously GEOSoft2 assists in the design and implementation of vertical tang
58. delay differences between sections of the array in the same line You could experience coverage problems if all delays applied to a Tangent Array are not equal Please refer to the chapter in the NX242 User Manual on setting delay for proper time alignment between GEO 512 and ALPHA S2 CD18 GEO SUB 10 2 6 Reversed Cardioid Pattern Polarity checks are often performed while the system is being set up Keep in mind that cardioid speakers may also require a coverage test If you invert two outputs of the NX242 you could have the main lobe inverted and firing to the rear It may be quite hard to detect a reversed cardioid pattern when it involves one section of a large array A good practice is to test the each cabinet in the array with the front speakers only The system is then omni directional Then turn on the back speaker you should notice a massive reduction at the back and additional level at the front This test must be done in addition to the usual polarity test 10 2 7 Using the wrong NX242 setups for a given cabinet Each NX242 setup is tailored for a certain NEXO loudspeaker Using the wrong setup will create safety and quality problems Always check that every cabinet in your system is being driven by the correct NX242 setup 10 2 8 Connections To ensure correct electronic behaviour and to guarantee specifications and EMC performance a NX242 must be properly wired Always use balanced connectors with the shield connected to
59. e array assembly system is keyed to the design software and will easily enable you to deploy your design with great precision The NX242 Digital TDcontroller provides driver protection and system optimization as well as DSP driven cardioid pattern control for the CD18 GEO SUB and RS series Directional Subwoofers GEO is a high precision system The GEO HRW controls acoustic energy more precisely than other multiple element waveguides It also makes GEO less forgiving of mistakes Whilst conventional horns never combine into a coherent array they may deliver acceptable results even if the design and deployment of the system is less than optimal This is not the case with GEO where careless installation produces catastrophic results A GEO Tangent Array is not a line GEO Technology is equally effective in designing and deploying tangent horizontal arrays or curved vertical arrays For best results in a specific application the user needs to know how multi speaker arrays interact with audience geometry along with the benefits and drawbacks of curved vertical arrays and horizontal arrays Curved tangent arrays require different design techniques For the past 20 years sound reinforcement professionals have worked with horizontal arrays that use conventional horns to deliver more or less equal power to equal angles Curved vertical arrays are designed to deliver more or less equal power to equal areas When arrays use con
60. ed are required to secure the cluster under the ceiling GEO 512 HARDWARE SETUP PROCEDURE Page 47 113 8 4 GEO 512 in touring applications 8 4 1 Touring Accessories Accessories are e Bumper GPT BUMPER e Rigging Plates GPT XBOW e Tension Mode Link Bars for GPT XBOW GPT TLB e Lifting Ring for GPT SSBRK GPT PSBRK or VNT TTC VNT XHBRK Truss hook for GPT SSBRK GPT PSBRK or VNT TTC VNT TCBRK U Bracket for single horizontal GEO 512 on pole stand lifting ring or truss hook GPT SSBRK e U Bracket for two horizontal GEO 12 on pole stand lifting ring or truss hook GPT PSBRK e Flying Bar for single vertical GEO 512 VNT TTC Ground Stacking device for up to 6 GEOS1210 GPT GSTK Please refer to section 13 3 of this manual for more information of above references GPT BUMPER VNT XHBRK VNT TCBRK GPT SSBRK VNT TTC GPT GSTK 48 113 GEO 512 HARDWARE SETUP PROCEDURE 8 4 2 Single GEO 512 on speaker stand or on RS15 horizontally Required items e 1 4 Bracket for single horizontal GEO S12 GPT SSBRK e 1x Speaker stand diameter 35mm K amp M 213 or equivalent e Or NEXO PS pole stand VXT PLSTD for mounting on top of RS15 IMPORTANT SPEAKER STAND Speaker stand must be rated for assembly weight 40kg rated load mi
61. ed the SubBass channel When the channel is turned on Subbass On main channels Left amp Right high pass filters are reconfigured to filter out signal components below the crossover frequency Slopes and other filter characteristics are optimized using techniques optimized for the actual acoustical data of each driver 9 5 2 Servo Control section Servo control of the 512 TDcontroller is intended to work with amplifier return signals present at the Sense inputs monitored by front panel LEDs VCAs and VCEQs Each of the 3 Audio channels Left Right and SubBass contains two voltage controlled elements driven by servo signals e One operates on the whole frequency range wide band VCA 76 113 NEXO ANALOGUE GEO 51270 CONTROLLER e The other elements work selectively as dynamic equalizers LF VCEQ amp HF VCEQ Depending on the nature and origin of the servo signals either one or the 3 combined elements is used to process the Audio signal This feature allows more efficient processing while reducing audible effects Displacement control The signal from the sense input is fed through a shaping filter producing a signal proportional to the voice coil displacement This control signal is compared to a fixed value and if exceeded the LF VCEQ is activated with very short attack time to reduce speaker excursion Temperature control Sense input is fed to a shaping filter to create a voltage proportional to the instantane
62. ed using a multipoint ground scheme with as many closed ground looS 12 as is economically possible 9 3 4 Fuse The fuse provided in the unit will not blow during normal operation If the fuse blows the T TDcontroller has malfunctioned This fuse must only be changed by NEXO certified service personnel In any case do not replace the fuse with a non certified NEXO fuse as this will invalidate the NEXO warranty NEXO ANALOGUE GEO 51270 CONTROLLER Page 71 113 CAUTION This servicing instruction is for use by qualified service personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so 9 3 5 Recommendations for wiring the sense lines The impedance of the sense inputs of the TDcontroller are high so currents are low and therefore light duty cable can be used If the TDcontroller is housed in the amplifier racks an unshielded cable may be used If the TDcontroller is located remotely at the mixing position a shielded cable is recommended without using the shield as a conductor The cable must be well protected from public access as it carries potentially dangerous amplifier voltage When one of the channels is not being used and the corresponding sense line is disconnected cross talk onto the inactive sense line may in some cases produce signals capable of causing the inadvertent illumination of the Sense LED on that
63. ennen nnns 110 141 Modules amp Control Electronics List eee nnne natns 110 14 2 Accessories List We o e a o o pe es elon xev seva 110 15 USER NOTES us 112 10 113 INTRODUCTION 1 INTRODUCTION Thank you for selecting a NEXO GEO S12 Series Tangent Array System This manual is intended to provide you with necessary and useful information about your GEO S12 System which includes the following products e 51230 is 30 Tangent Array Module It comprises 1 12 30 Neodynium 16 ohms LF MF driver and 1x3 voice coil 1 4 Throat 16 Ohm HF Driver loaded by a 28 5 Hyperboloid Reflective Wavesource TV 579 e 51210 is 10 Tangent Array Module It comprises 1x12 30cm Neodynium 16 ohms LF MF driver and 1x3 voice coil 1 4 Throat 16 Ohm HF Driver loaded by a 5 Hyperboloid Reflective Wavesource e GEO 512 Accessory Range a full range of accessories that provides safe flexible and simple means of installing Geo S12 Tangent Arrays in fixed installation as well as in touring applications INTRODUCTION Page 11 113 As for all NEXO systems GEO 5125 are controlled powered and monitored by dedicated NEXO TDControllers e GEO 512 TDController is based on PS analogue TDController design and provides full
64. ent GEO arrays Please consult the NEXO web site www NEXO fr or www NEXO sa com for the latest software releases Please devote your time and attention to reading this manual A comprehensive understanding of GEO theory tangent arrays and specific features of GEO S12 will help you to operate your system at its full potential GEO 512 GENERAL SET UP INSTRUCTIONS Page 13 113 2 GEO 12 GENERAL SET UP INSTRUCTIONS 2 1 Speaker connection 2 1 1 GEO 512 connectors GEO 512 is connected with Speakon NL4FC plugs not supplied A wiring diagram is printed on the connection panel located on the back of each cabinet The 4 pins of the 2 Speakon sockets identified in out are connected in parallel within the enclosure Either connector can be used to connect amplifier or to link to an additional Geo O S12 cabinet or to link to an optional Sub if present Therefore a single 4 conductor cable can connect two amplifier channels to various Geo S12 and or Sub Bass Connectors are wired as follows XO ASSIVE Speakon Passive Active Connector Mode Mode Not Connected Geo S12 LF Geo S12 LF Geo S12 Geo S12 HF Geo S12 Geo S12 HF 2 1 2 Configuring Geo 512 for Passive or Active Mode e Remove the six screws that hold the connector panel figure next page e Remove the connector panel so that filter WAGO connectors become accessible e n Passive Mode connector A from filter
65. eo S12 e Fill each screw hole with Locktite 243 or equivalent e Position external plates from VNI LBRK kits and secure them using the shoulder screws supplied with these kits e Position L brackets from VNI LBRK kits and secure them to the cabinet using the 4 remaining shoulder screws supplied with these kits e Slings and shackles not provided are required to secure the cluster under the ceiling GEO 512 HARDWARE SETUP PROCEDURE Page 41 113 8 3 4 GEO 512 vertical array rigidly mounted on a ceiling Required items e 1x GPI BUMPER allows 5 bumper tilt when installed below a flat surface if higher bumper tilt is required surface will have to be defined accordingly N 1 x GPI ANPL for a x GEO S12 array ANPL1 ranges from 0 2 to 3 15 ANPL2 ranges from 5 to 10 ANPL3 ranges from 16 to 30 e Four 12mm diameter screws not provided IMPORTANT Ensure that the ceiling is strong enough to hold GEO S12 cluster weight and that the four screws 12mm diameter and corresponding plugs required to fix the bumper under the ceiling are properly dimensioned Procedure 1 2 3 A Set all GEO 512 side by side Remove the four TORX screws holding connector plates on upper side of all GEO 512 Remove the connector plates from all Geo 5125 gt lt WH Fill each screw hole with Locktite 243 or equivalent e 5 Position bottom external plates angle plates and top ex
66. erters Electronically balanced 50 Ohm 4 XLR 3M connectors 4 Digital Ethersound Outputs with NXTension ES4 Card enabled for compatible amplifiers only 24 bit data with 48 bit accumulator 200 MIPS Front Panel Menu A and Menu B buttons 16 characters by 2 lines display Select Wheel amp Enter button 4 IN Clip DSP Clip red LED s Speaker Protection yellow LED for each channel Individual Mute Solo buttons and red LED for each channel Amp Sense amp Peak green amp red LED s for each channel FLASH EPROM Software updates upgrades new system setups available on www nexo sa com Rear Panel RS232 connector for serial com 2 x RJ45 connectors with NXTension ES4 Card 1 RJ45 2 RJ11 with NXTension Card Dimensions amp Weight 1U 19 Rack 230 mm 9 Depth 4kg 13 6 2 Front and Rear Panel view GeoD Passive mode _ Crossover 80Hz___ 1 NX242 0310 04 109 113 TECHNICAL SPECIFICATIONS 13 6 3 Block Diagram PNOUWINWIS AYIA Lm L zunivusanat 4 ravaa g 2 j j 7 E Fi rasas ova sinn RM 3 LI Ae t aw a H 1790 samoa N a prece Ove
67. et into the rear panel within the area labeled SENSE INPUT The Sense inputs are intended for connection to the output signals of the amplifiers driving one cabinet of each the channels being used Connection is made via the female part removable of the connector supplied with the Controller as outlined below Channel S12 Left Amplifier Output Terminal Barrier strip connector pin 1 figure 2 3 pin4 5 6 12 Right 515 Input sense connection MANDATORY for proper operation of the servo control system the cabinets will NOT BE PROTECTED if the sense lines are unconnected Earth Lift The push button labeled lt Earth Lift gt allows connection depressed position or disconnection out position SENSE INPUT EARTH between the signal ground and the mains earth which is itself linked to the chassis Using this button may help to T eliminate hum due to ground looS12 created in the system SUB RIGHT LEFT Sub jumper In certain applications you may wish to disable the mono summation but keep the 6dB gain boost on the sub channel By moving the internal jumper ST1 inside the unit the sub channel will only use the Right input with 6dB gain to keep the same sub level when the mono summation is enabled NEXO ANALOGUE GEO 51270 CONTROLLER Page 75 113 Always ensure that your TDcontroller is disconnected from main before opening the unit Remove the
68. fety pins into GEO 5125 connecting plate IMPORTANT Ensure that safety pins are properly locked into GEO S12s connecting panels PROFESSIONAL EQUIPMENT r Workin Load Limits WLL and Rigging Instructions WARNING igs CAUTION ENSURE ALL PINS ARE PROPERLY LOCKED 58 113 GEO 512 HARDWARE SETUP PROCEDURE IMPORTANT GEO S12 can be flown Up or Down Up means Nexo logo on front grid is at the top Down means Nexo logo on front grid is at the bottom GEO S12 can be connected Up or Down by simply flipping the cabinets Whenever possible NEXO recommends symmetrical designs ie Nexo logo in the same position on Left and Right clusters for stereo designs e Connect second Geo 512 with X Bow front articulation holes and rear link bars and ensure quick release pins are properly locked e Repeat above steps for subsequent GEO 512 IMPORTANT Ensure angle settings are identical on upper and lower side of the cabinets Ensure that safety pins are properly locked into GEO 5125 connecting panels Ensure that all quick release pins are properly locked into their position e Connect lifting rings to U bracket with 8x45 quick release pins supplied with VNT XHBRK ensure quick release pin is properly locked GEO 512 HARDWARE SETUP PROCEDURE Page 59 113 e Lift and posit
69. h amp Sub Gain Control 6dB Indicators LF speakers Protect Yellow LED s Temp amp Disp Power ON green Amp Sense amp Peak LED s green Red Dimensions 1U 19 Rack 165mm 6 5 Depth Weight 2 9 kg 6 6 Ibs net Applicable Products The 512 TDcontroller is precisely matched to the 512 amp associated Subbass and includes sophisticated protection systems Use of either product without a properly connected Controller will result in poor sound quality and may damage the components SubBass Active two way operation of the S12 Loudspeaker with the associated Subwoofer is included in the Analogue S12 TDcontroller 13 5 2 Front and Rear Panel view m oS of NEXO CO OELLE BALANCED OUTPUTS BALANCED INPUTS 108 113 TECHNICAL SPECIFICATIONS 13 6 NX242 TDcontroller with NX Tension Card 13 6 1 Specifications SPECIFICATIONS Output Level 28 dBu Max into 600 Ohm load Dynamic Range 110 dBu lt 0 002 flat setup for output at 27 5dBu THD Noise Latency time 1 7ms on a flat setup Power Supply 90V 260V PRODUCT FEATURES Audio Inputs 2 Audio Inputs 24 bit converters Electronically Balanced 50k Ohm 2 XLR 3F Connectors 4 Digital Ethersound Inputs with NXTension ES4 Card Sense Inputs 4 Amplifier Sense Inputs Floating 150 kQ 18 bit converters 8 Pole Removable Strip Terminal Audio Outputs 4 Audio Outputs 24 bit conv
70. he type of crossover wanted Time alignment is also performed in an unconventional way by using the crossover filter group delays in combination with allpass and or frequency dependent delays 78 113 NX242 ES4 DIGITAL CONTROLLER FOR GEO 512 NX242 Digital TDcontroller Partial BLOCK DIAGRAM Analogue path Digital Audio Digital servo amp protections AD l sHELVING INPUT R INPUT VU METER HEADROOM INPUT L INPUT VU METER OUTPUT CHANNEL 4 O48 HF TEMPERATURE PEAK SIMULATION 10 1 3 Protection VCAs and VCEQs Each channel has its own simulation and protection process Each audio channel contains a combination of controlled gain stages let s call them VCAs as in analogue circuitry These VCAs are embedded into complex composite signal chains that adapt change their basic operation into frequency selective attenuation similar to an analog voltage controlled dynamic equaliser VCEQ Each VCEQ and VCA is controlled via synthesis of several signals from the various detection sections That synthesis is in fact the envelope of those signals with an optimised release and attack time for each VCEQ and VCA depending on its frequency range and the cabinet selected
71. ignal processing functions similar to those found in the NX242 TDcontroller or in GEO S12 TDController loudspeaker offset integration limiter compressor Moreover when this processing is digital computation latency time can introduce a few milliseconds delay from input to output These functions are not adapted to specific system requirements and may interfere with the complex protection algorithms used in the NX242 NEXO do not advise using other protection systems in conjunction with the NX242 and they should be disabled IMPORTANT For proper system protection no latency time or non linear devices should be introduced between the output of the NX242 TDcontroller and the input of loudspeakers through use of DSP modules such as internal amplifier signal processing 3 1 3 Example For a 6 GEO 12 cluster and considering an amplifier model which is capable of delivering 2 x 3300W into 2 Ohms or 2 x 2300W into 4 Ohms NEXO recommends the following quantities and settings e Geo 12 Passive Mode e 1 stereo amplifier x GEO 12 per amplifier channel mode switch in Stereo position Gain switch in 26 dB gain position all dynamic or filter processing switches off 3 2 GEO 5125 and NXAMP TDControllers NEXO Powered TDControllers NXAMP 4X1 amp 4X4 are integrated solutions for Control and amplification for all NEXO speaker ranges NXAMP4x1 and NXAMP4x4 power capability is listed in the table below 4 Channels Bridge
72. in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet US market Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped Nu T he lightning fash with arrowhead WARNING To reduce the risk of fire or electric shock tangles intended to symbol within an equilateral triangle is intended to alert the user to the do not expose this apparatus to
73. including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet US market 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped IMPORTANT SAFETY INSTRUCTIONS Information about products that generate electrical noise NOTE The United States Federal Communications Commission in 47 CFR 15 105 has specified that the following notice be brought to the attention of users of this product This equipment has been tested and found to comply with the limits for a Class B digital device pursuant
74. ing with external accessories Intercabinet angle adjustments 0 2 0 315 0 5 0 8 1 25 2 0 3 15 5 6 3 8 0 10 0 logarithmic steps GEO 51210 with NX242 TDcontroller amp NX tension Card 53 Hz 19 kHz 3 dB 50 Hz 20 kHz 103 dB SPL nominal Configuration Dependent d Coupling Plane Configuration dependent d Non Coupling Plane Configurable 80 120 LF HF 1 1 kHz Passive or Active internally configurable HF 16 Ohms LF 16 Ohms HF 875 to 1550 Watts into 4 Ohms LF 1750 to 3100 Watts into 4 Ohms HF 1000 to 1800 Watts into 4 Ohms LF 2000 to 3600 Watts into 4 Ohms HF 1650 to 3000 Watts into 2 Ohms LF 3300 to 6000 Watts into 2 Ohms The NEXO TDoontrollers presets are precisely matched to the GEO 512 Series cabinets and include sophisticated protection Using GEO S12 Series cabinets without a properly connected NEXO TDcontrollers will result in poor sound quality and can damage components Array design Arrays of less than 4 x GEO 51210 will provide poor dispersion control and are neither recommended nor supported Sub bass CD18 GEO SUB 52 extend system low frequency response down to 32 Hz 38 Hz 32 Hz Speaker cables Active 1 1 LF 272 HF Passive 17 1 Not Connected 2 2 LF HF Accessories Please refer to the GEO 512 user manual before any operation As part of a policy of continual improvement NEXO reserves the right to change specifications with
75. ion assembly connect lifting rings to suspension points with sling and shackle e Secure assembly with secondary safety steel IMPORTANT The requirements for secondary safety systems vary with territories However the secondary safety steel MUST have a SWL equivalent or greater than that of the rigging system 60 113 GEO 512 HARDWARE SETUP PROCEDURE 8 4 8 Three or more GEO 12 flown horizontally Required items e 1 x Bumper GPT BUMPER e Pair of Rigging Plates GPT XBOW for cabinets e 4xN Quick release pins for cabinets e 1 hoist not provided IMPORTANT Maximum GEO 512 quantity for flown vertical cluster is 12 and eventually less Please check Geosoft2 for mechanical Safety Working Load computations IMPORTANT Motor hoist must be rated to support entire cluster weight Please check configuration in Geosoft2 for proper motor hoist rating PROFESSIONAL EQUIPMENT Please refer to User Manual for Workin Load Limits WLL and Rigging WARNING CAUTION ENSURE ALL PINS ARE PROPERLY LOCKED 160 22 5 GEO 512 XBOW ANGLE SETTINGS PLATE Optional GPT TLB link bar for GPT XBOW GPT XBOWSs are delivered with standard link bars which allow both stacked and flown setups However these link bars require perfect alignment of angle setting holes when adding cabinets GPT XBOW STANDARD LINK BAR GEO 512 HARDWARE SETUP PROCEDURE Page 61 113
76. ius is equal or higher than assembly height IMPORTANT RS15 POLE STAND NEXO STDPS pole stand only should be used for mounting on top of NEXO RS15 If 2 RS15s are to be stacked below GEO S12s pole mounted they should be connected together through use of RS15 rigging plates RS15s must always be installed on a horizontal surface Ensure that public is not allowed within a safety area which radius is equal or higher than assembly height Procedure e Setthe 2 GEO 512 next to each other front grid to the floor Slide GPT PSBRK side plates into GEO 5125 connecting plate oblong holes e Lock safety pins into GEO 5125 connecting plate IMPORTANT Ensure that safety pins are properly locked into GEO S12s connecting panels e Adjust inter cabinet angle and lock to required angle value with 8x20quick release pins e Position U bracket over these side plates align centre holes e Insert adjustment handles adjust vertical angle and tight the handles to prevent GEO 5125 from rotating around U bracket e Lift assembly on Wind Up stand or on RS15 with PLSTD pole stand GEO 512 HARDWARE SETUP PROCEDURE 54 113 GEO 512 HARDWARE SETUP PROCEDURE Alternative Procedure Walder procedure Below described procedure required 2 additional 8x20 quick release pins BLGEOS Split the GPT PSBRK side plates by removing scre
77. l and VLF2 on one amplifier channel Speakon 4 Speakon 4 Speakon 4 1 1 4 2 2 FULL RANGE CONNECTION DIAGRAMS Page 21 113 5 2 GEO 512 242 54 4 channels passive mode FROM AMPLIFIERS TO AMPLIFIERS GEOS12 GEOS12 GEOS12 GEOS12 4 3 2 Speakon 4 STEREO AMPLIFIER STEREO AMPLIFIER 2 Speakon 4 Speakon 4 Speakon 4 Speakon 4 1 1 N C 2 2 FULL RANGE 4 4 GEOS12 4 CHANNELS 22 113 CONNECTION DIAGRAMS 5 3 GEO S12 ALPHA S2 NX242 ES4 Stereo passive mode FROM AMPLIFIERS TO AMPLIFIERS 512 GEOS12 SUB SUB RIGHT LEFT RIGHT LEFT Speakon 4 Speakon 4 1 1 VLF 1 1 VLF 2 2 N C 2 2 N C AMPLIFIER 2 Speakon 4 Speakon 4 1 1 N C 2 2 FULL RANGE Speakon 4 Speakon 4 GEOS12 STEREO MODE WITH S2 SUB STEREO CONNECTION DIAGRAMS Page 23 113 5 4 GEO 12 CD18 NX242 ES4 Stereo passive mode FROM AMPLIFIERS TO AMPLIFIERS GEOS12 GEOS12 SUB SUB STEREO RIGHT LEFT FR
78. l channel processes the same input as the first channel but with reversed phase The single load is connected between the two positive channel outputs using a suitable connection While the total output of the amplifier remains the same the available output voltage the minimum impedance that can be connected and the voltage gain are doubled as compared with stereo operation Typically only channel 1 input is active Positive and negative output connections vary depending on amplifier manufacturers NEXO does not recommend Bridge Mono Mode unless amplifier power is clearly not sufficient AMPLIFIER SELECTION FOR USE WITH GEO 5128 Page 17 113 IMPORTANT When in Bridge Mono mode check your amplifier user manual for proper connection of outputs 1 and 2 in relation to input phase e Parallel mono the output terminals of the two channels are configured in parallel using internal relay The single load is connected either to the output of channel 1 or to that of channel 2 as if in stereo While the total output of the amplifier remains the same the output voltage level is also the same as in stereo mode The minimum impedance that can be connected is reduced by half due to the fact that current capability is doubled Typically only channel 1 input is active does not recommend Parallel Mono Mode for any GEO 512 amplification Warning on amplifiers signal processing features Some high end amplifiers may include s
79. l harmonics Since these occur after the NX242 in the signal path they are not filtered by the TDcontroller circuitry The threshold of the peak limiter is set by the user to match the amplifiers clipping point The second function of the peak limiter is to avoid huge amounts of power being sent to a driver Each driver is protected against overheating and overexcursion but there could be other failure modes that cannot be predicted by simulation especially mechanical damage to the cone Each driver is specified for a certain power handling and a factory set peak limiter threshold is tuned to avoid any abuse 10 2 Trouble shooting The NX242 has been designed to be user friendly However with highly technical systems such as GEO 512 incorrect adjustment of the NX242 can lower the quality amp safety of your system Listed below are the most common errors encountered by NEXO Technical Support 10 2 1 Operation of Multiple TDcontrollers output channels Typically GEO S12 systems require multiple NX242 s output channels per side Eventually two or more NX242 s channels will operate within the same cluster It is mandatory to verify the consistency of the setups and adjustment between these channels to avoid the problems described below IMPORTANT When using multiple NX242 s output channels in a single array all parameters should be consistent and set to proper values on each channel 10 2 2 Amplifier Power MENU 2 7 If the amplifier
80. lates Parts 04GPT XBOW Dimensions 376 50 Weight pair 10 7 kg 23 6 Lbs 92 113 TECHNICAL SPECIFICATIONS 13 3 3 Tension Mode Link Bars for GPT XBOW Parts 04GPT TLB Dimensions Weight pair 0 6 kg 1 3 Lbs TECHNICAL SPECIFICATIONS Page 93 113 13 3 4 Lifting Ring Parts 04VNT XHBRK Dimensions N 9 3 58 Weight kit 0 3 kg 0 661 Lbs 94 113 TECHNICAL SPECIFICATIONS 13 3 5 Truss hook for GPT PSBRK or GPT SSBRK Parts 04VNT TCBRK Dimensions 47 Weight kit 0 620 kg 1 37 Lbs TECHNICAL SPECIFICATIONS Page 95 113 13 3 6 Truss hook for single vertical GEO 12 Parts O4VNT TTC Dimensions 4 __ N Ln 0000 8 0000 0 0 FT d Weight kit 0 7 kg 1 54 Lbs 96 113 TECHNICAL SPECIFICATIONS 13 3 7 U Bracket for single vertical GEO 512 Parts 04GPT SSBRK Dimensions Weight kit 7 kg 15 4 Lbs TECHNICAL SPECIFICATIONS Page 97 113 13 3 8 U Bracket for two vertical GEO 12 Parts 04GPT PSBRK Dimensions Weight kit 10 4 kg 22 9 Lbs 98 113 TECHNICAL SPECIFICATIONS 13 3 9 Ground Stacking Device for up to 6 GEO 1210 Parts 04GPT G
81. lel with the axis of the topmost cabinet Spirit level used to ascertain the trueness of the surface from which the angle measurements originate Rangefinder measuring device either a Disto type laser measure or an optical laser rangefinder can be used Devices such as the Bushnell Yardage Pro sports rangefinders provide sufficiently accuracy and are easy to use They have the additional advantage of working very well in bright sunlight Electronic calculator with trigonometric functions to calculate the height from ground level to points in the room The formula to calculate height of a point from measured angle and distance is Height of point Sin vertical angle in degrees x distance to point NB Take care when using spreadsheets as they calculate using radians by default To convert degrees to radians use the formula Angle in radians 3 142 x Angle in degrees 180 Computer Laptop or Desktop PC running Windows XP with the current version of NEXO GeoSoft2 installed It is not possible to configure a Geo tangent array properly without using GeoSoft2 Note that when GeoSoft2 designs are prepared prior to arrival at the venue it is often necessary to modify or update the design to accommodate special circumstances A PC is absolutely essential to make such changes Audio Analysis Software recommended but not absolutely essential programs such as Easera Systune Smaart WinMLS enable rapid and detailed analysis of
82. m in any way The speaker system contains no user serviceable parts If it should appear to be malfunctioning or damaged discontinue use immediately and have it inspected by qualified NEXO service personnel Water exposure Do not expose the speaker system to direct rain do not use it near water or in wet conditions Do not place containers with liquid on speaker system as they might spill into openings If any liquid such as water seeps into the speaker system have it inspected by qualified NEXO personnel SYSTEM DEPLOYMENT SAFETY RULES Read User Manual before deployment Before use of enclosed speaker system please ensure that anyone involved in system deployment understands the rigging stacking pole mounting safety rules as described in the speaker system User Manual Failure to do this exposes people to potential injury or death Always consult qualified NEXO personnel if the device installation requires construction work and make sure to observe the following precautions Mounting precautions choose mounting hardware and an installation location that can support the weight of the speaker system donot use speaker system handles for suspended installation do not expose speaker system to excessive dust or vibration or extreme cold or heat to prevent possibility of component damage do not place the speaker system in an unstable position from which it might fall accidentally if speaker systems uses a stand e
83. n Speaker stand must always be installed on a horizontal surface Stand height and footprint must be defined to prevent assembly from collapsing Ensure that public is not allowed within a safety area which radius is equal or higher than assembly height IMPORTANT RS15 POLE STAND NEXO PLSTD pole stand only should be used for mounting on top of NEXO RS15 If 2 RS15s are to be stacked below GEO S12s pole mounted they should be connected together through use of RS15 rigging plates RS15s must always be installed on a horizontal surface Ensure that public is not allowed within a safety area which radius is equal or higher than assembly height Procedure e Slide GPT SSBRK side plates into GEO 512 connecting plate oblong holes e Lock safety pins into GEO S12 connecting plate IMPORTANT Ensure that safety pins are properly locked into GEO S12 connecting panels e Position U bracket over these side plates align centre holes e Insert adjustment handles adjust vertical angle and tight the handles to prevent GEO 12 from rotating around U bracket e Lift assembly on speaker stand or on RS15 with PLSTD pole stand GEO 512 HARDWARE SETUP PROCEDURE Page 49 113 50 113 GEO 512 HARDWARE SETUP PROCEDURE 8 4 3 Single GEO 512 flown vertically Required items e 1 x Flying Bar for single vertical GEO S12 VNT TTC e 1 Lifting Ring VNT XHBRK
84. nce exceeding half of the limits found in this standard These two EMC standards are those applicable to pro audio equipment for the implementation of the EMC directive 9 3 8 Analogue signal cables Analogue signals should be connected to the input and output ports of the TDcontroller via shielded twisted pair or starquad cable fitted with XLR connectors on the TDcontroller side We recommend the use of low transfer impedance cables with a braided shield and a transfer impedance below 10 mQ m For the sense inputs the noise requirements are not as stringent and any kind of twisted pair cable will be adequate Mixing Desk Safety Ground The TDcontroller is intended to be used with symmetrical balanced sources for instance a mixer and symmetrical loads for instance a power amplifier see figure You can see that the TDcontroller provides a low impedance path between pin 1 of its XLR connectors and its chassis The TDcontroller can sustain high current in pin 1 without 72 113 NEXO ANALOGUE GEO 51270 CONTROLLER degradation of output noise We recommend that the sources and loads you use have the same desirable characteristics It is sometimes claimed that connecting cable shield at both ends creates ground 100512 and that the current flowing in such looS12 will produce noise This is not the case for most professional audio equipment In short there are two kinds of looS12 in which voltages are present the lo
85. nce of the different systems It is thus possible to get a well adjusted system even without measuring instruments If CD18 s GEO SUB s S2 s are driven form an AUX output NX242 is fed with two signals coming from different sources If those two sources MAIN output amp AUX send are not exactly in phase delay is introduced into the crossover between the GEO 512 array and the CD18 s GEO SUB s 525 It is then mandatory to use proper measurement tool to optimize phase response Why is it unlikely that AUX and MAIN outputs have the same phase e Signal paths are likely to be different any filter modifying the bandwidth and EQ of the signal is also affecting the phase Example a 24dB oct high pass filter set at 15Hz is affecting amplitude of the signal by only 0 6dB at 30Hz but the phase shift is 90 At 100Hz we can still measure 25 of phase shift e Limiting bandwidth with a low pass filter can introduce a phase difference of up to 180 completely out of phase at the cross over point e signal is passing though any digital equipment between 1 4ms and 2 2ms is being added around 70 phase shift at 100Hz due solely to the converter delay The additional delay due to the processing itself look ahead compressor delay can be quite important as well If both outputs are not measured in the actual configuration it is very likely that phase alignment will not be correct Consequences of badly aligned systems Mis
86. nderstood and adhered to Information on these regulations can usually be obtained from Local Government Offices e When deploying a GEO S12 system always wear protective headwear footwear and eye protection Do not allow inexperienced persons to handle a GEO 512 system Installation personnel should be trained in loudspeaker flying techniques and should be fully conversant with this manual e Ensure that motor hoists hoist control systems and ancillary rigging components are currently certified as safe and that they pass a visual inspection prior to use GEO 512 HARDWARE SETUP PROCEDURE Page 33 113 Ensure that public and personnel are not allowed to pass beneath the system during the installation process The work area should be isolated from public access Never leave the system unattended during the installation process Do not place any object no matter how small or light on top of the system during the installation procedure The object may fall when the system is flown and is likely to cause injury Secondary safety steels must be installed once the system has been flown to the operating height Secondary steels must be fitted irrespective of requirements of the local safety standards applicable to the territory Ensure that the system is secure and prevented from pivoting around the motor hoist Avoid any form of excessive dynamic loading to the assembly structural computations on GEO 12 Rigging System are based on a
87. nsure that stand specifications are adapted and that stand height does not exceed 1 40m 55 never move the stand while the speaker is in position Connection and powering precautions remove all connected cables before moving the speaker system turn off AC power of all power amplifier units before connecting the speaker system when turning on the AC power to the audio system always turn on the power amplifier last when turning the AC power off always turn off the power amplifier first when used in cold conditions a gradual power ramp up should applied to the system on an 5 mn period to allow the loudspeaker components to stabilize during the very first minutes of usage Inspect the speaker system periodically 4 113 PLEASE READ CAREFULLY BEFORE PROCEEDING SAFETY INSTRUCTIONS FOR NEXO TD CONTROLLERS NEXO ANALOGUE PSTDCONTROLLERS NX242 DIGITAL CONTROLLER NXAMP4x1 AND NXAMP4x4 POWERED CONTROLLERS ARE CLASS 1 APPARATUS AND MUST BE EARTHED THE GREEN AND YELLOW WIRE OF THE MAINS CORD MUST ALWAYS BE CONNECTED TO AN INSTALLATION SAFETY EARTH OR GROUND THE EARTH IS ESSENTIAL FOR PERSONAL SAFETY AS WELL AS THE CORRECT OPERATION OF THE SYSTEM AND IS INTERNALLY CONNECTED TO ALL EXPOSED METAL SURFACES Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install
88. nto 2 Ohms LF 3300 to 6000 Watts into 2 Ohms 6 GEO 1230 in parallel SYSTEM OPERATION Electronic controller The NEXO TDoontrollers presets are precisely matched to the GEO 512 Series cabinets and include sophisticated protection Using GEO 512 Series cabinets without a properly connected TDcontrollers will result in poor sound quality and can damage components Sub bass CD18 GEO SUB 52 extend system low frequency response down to 32 Hz 38 Hz 32 Hz Speaker cables Active 17171 272 HF Passive 171 Not Connected 2 2 LF HF Accessories Please refer to the GEO 512 user manual before any operation As part of a policy of continual improvement NEXO reserves the right to change specifications without notice a Response curves and data anechoic far field above 200 Hz half space anechoic below 200 Hz b Sensitivity amp peak SPL will depend on spectral distribution Measured with band limited pink noise Refers to the specified 3 dB range Data for speaker processor recommended amplifier combinations c Directivity curves and data 1 3 octave smoothed frequency response normalized to on axis response Data obtained by computer processing of off axis response curves d Please refer to the GEO 512 user Manual Usable range data frequency response capability with TD crossover slopes removed TECHNICAL SPECIFICATIONS Page 87 113 13 1 2 Dimensions 344 mm 400 mm
89. oS12 formed by signal wires and the 100512 formed by grounded conductors among which are protective earth conductors PE and signal cable shields When a cable shield is grounded at both ends a loop is closed and the resulting current causes a reduction of the voltage induced on signal lines This effect is what the cable shield is intended to produce since this is how it protects your signal from magnetic fields If you are using an asymmetrical unbalanced source it is recommended to use a shielded twisted pair and to connect wire 3 of the cable to the shield at the source output end see figure Mixing Desk This technique prevents noise currents flowing on the return path of the signal If you are using an amplifier with asymmetrical unbalanced input it is best to use a shielded twisted pair and to connect wire at the TDcontroller end only as shown in Fig 2 This keeS12 a good capacitance balance for the signal however noise currents flow on the return path of the signal Note that this is only acceptable for a short cable If you are using a symmetrical balanced source or amplifier which is prone to become noisy when a current of less than 100 mA at the mains frequency 50 Hz or 60 Hz is sourced into pin 1 of its XLR connectors you might consider opening the ground looS12 9 4 Analogue TDcontroller USER GUIDE 9 4 1 Read before use The Analogue TDcontroller is designed to be used with its
90. of 6 GEO 512105 in any inter cabinet angle configuration provided this device is assembled according to below rules Ground stack device GPT GSTK must always be installed on a horizontal surface Bottom GEO 512 tilt angle must be limited to 10 Ensure that public is not allowed within a safety area which radius is equal or higher than assembly height Optional GPT TLB link bar for GPT XBOW GPT XBOWSs are delivered with standard link bars which allow both stacked and flown setups However these link bars require perfect alignment of angle setting holes when adding cabinets O GPT XBOW STANDARD LINK BAR To facilitate flying and stacked operation an optional link bar with oblong holes GEOS12 TLB pair of link bars provided with two 8x20 quick release pin is available in the GEO S12 accessory range GPT XBOW OPTIONAL GPT TLB LINK BAR To install GPT TLB remove the standard link as well as nut screw and washers When using GPT XBOW for stacked setups insert pins in the two circular holes REMOVING STANDARD LINK BAR INSERTING PINS STACKED SETUPS GEO 512 HARDWARE SETUP PROCEDURE Page 65 113 GEO 512 ground stack device description GPT GSTK ground stack device includes e two supporting beams which support assembly weight e two connecting beam which allow connection of the beams to the first cabinet onereinforcement beam to rigidify ground stack device sideways e
91. ofers are available in NX242 NXAMP load 2 45 Please consult www nexo sa com for upgrade releases GEO 12 4x 51210 Passive Wideband 4x 51230 Passive Wideband 2 51210 Active Wideband 2 51230 Active Wideband 2 51210 Active X Over 80 Hz 2 51230 Active X Over 80 Hz 512 2 51210 Passive Wideband 2 x Alpha 52 amp ALPHA S2 2 51230 Passive Wideband 2 x Alpha 52 2 x 51210 Passive 80 Hz 2 x Alpha 52 2 x 51230 Passive X Over 80 Hz 2 x Alpha 52 GEO 12 2 51210 Passive Wideband 1 x GeoSub 35 Hz 80 Hz amp GEO SUB 2 51230 Passive Wideband 1 x GeoSub 35 Hz 80 Hz 2 51210 Passive Wideband 1 x GeoSub 35 Hz 200 Hz 2 51230 Passive Wideband 1 x GeoSub 35 Hz 200 Hz 2 x 51210 Passive X Over 80 Hz 1 x GeoSub 35 Hz 80 Hz 2 x 51230 Passive X Over 80 Hz 1 x GeoSub 35 Hz 80 Hz 2 51210 Passive X Over 80 Hz 1 x GeoSub 35 Hz 200 Hz 2 51230 Passive X Over 80 Hz 1 x GeoSub 35 Hz 200 Hz 2 x 51210 Active X Over 80 Hz 1 x GeoSub 35 Hz 80 Hz 2 x 1230 Active X Over 80 Hz 1 x GeoSub 35 Hz 80 Hz 2 51210 Active X Over 80 Hz 1 x GeoSub 35 Hz 200 Hz 2 x 51230 Active X Over 80 Hz 1 x GeoSub 35 Hz 200 Hz GEO 12 2 51210 Passive Wideband 1 x CD18 85Hz amp CD18 2x 1230 Passive Wideband 1 x CD18 85 Hz 2 51210 Passive X Over 1 x CD18 85 Hz
92. on large systems and should never be underestimated Observe meteorological forecasts calculate the worst case effect upon the system prior to erection and ensure that the system is secured appropriately Take care when stacking cabinets Always employ safe lifting procedures and never attempt to build stacks without sufficient personnel and equipment Never allow anyone whether operators artists or members of the public to climb onto a ground stacked PA system Anyone who needs to climb over 2m 6 ft high should be fitted with suitable safely equipment including a clip on harness Please refer to local Health and Safety legislation in your territory Your dealer can help with advice on access to this information Apply the same attention to all safety matters when de stacking systems Be aware that safety procedures are as important in the truck and in the warehouse as they are at the venue 34 113 GEO 12 HARDWARE SETUP PROCEDURE 8 1 3 Contacts Correct training is fundamental to safe practise when working with loudspeakers flying systems NEXO recommend that users contact local industry associations for information on specialist course Information for International training agencies can be obtained by contacting either The Production Services Association Rigstar Training and Testing Center PSA 82 Industrial Dr Unit 4 School Passage Northampton Massachusetts 01060 U S A Kingston upon Thames Phone 413
93. or on RS15 horizontally 52 8 4 6 Two GEO 12 flown 4 ener nennen 56 8 4 7 Two or GEO 512 flown vertically 57 8 4 8 Three or more GEO 512 flown 60 8 4 9 Ground stacked GEO 81210 7 64 8 5 Testing and Maintenance of the system sse trennen nnne nns 68 9 NEXO Analogue Geo S12TD Controller 69 9 1 Analogue TDcontroller Declaration Of conformity sse nnne 69 9 2 IMPORTANT SAFETY 5 nennt seen 69 9 3 Analogue TDcontroller Setting Up Advice essent 70 9 3 1 Mains aec 70 9 3 2 Voltage p 70 9 3 3 Mounting the TDcontroller in a rack Grounding shielding 4 safety 70 9 3 4 cre E Pt 70 9 3 5 Recommendations for wiring the sense lines 71 9 3 6 Recommendations for wiring the audio 88 4 4 0 71 9 3 7 Electromagnetic 71 9 3 8 Analogue signal cables
94. ous voice coil current The signal is integrated over time to simulate heat buildup in the specific driver When the resulting voltage exceeds a preset threshold the VCA is activated to limit the voice coil temperature within its safety range Power compression is also simulated by lowering the high frequencies when temperature protection is acting on the bass loudspeaker Dynamic control To reduce audible pumping effects due to very long time constants of temperature detection signals an alternate integration is also processed with a shorter time constant Whilst anticipating the temperature protection and reducing its unwanted effects action of this signal also improves dynamics control Peak Limiter The above mentioned devices provide reliable protection against potential speaker over heating and over excursion Nevertheless driving the cabinets at very high peak voltages with oversized amplifiers as well as delivering distorted signals might be dangerous for the speakers The Peak limiter is both useful for e Maintaining good sound quality at high levels it will reduce amplifier distortion e Increasing protection reliability limiting peak voltages to levels that speakers can permanently withstand and reducing the occurrence of subsonic signals delivered by overloaded amS12 NX242 ES4 DIGITAL CONTROLLER FOR GEO 512 Page 77 113 10 NEXO NX242 ES4 DIGITAL CONTROLLER FOR GEO S12 IMPORTANT GEO S12 use latest
95. out notice a Response curves and data anechoic far field above 200 Hz half space anechoic below 200 Hz b Sensitivity amp peak SPL will depend on spectral distribution Measured with band limited pink noise Refers to the specified 3 dB range Data for speaker processor recommended amplifier combinations c Directivity curves and data 1 3 octave smoothed frequency response normalized to on axis response Data obtained by computer processing of off axis response curves d Please refer to the GEO 512 user Manual Usable range data frequency response capability with TD crossover slopes removed 89 113 TECHNICAL SPECIFICATIONS 13 2 2 Dimensions 344 mm 13 112 EE Fraquav gt mem 051210 Yer pachawa mum GSCG 2IQ Cro a Mr hs TOcontrollar mem xu Wideband hkat TDcontrolar mem GEOZI2I0 G Wideband h lt TDconfrollar mum GOS 2 Q Gi Crea a hiat TOcontrollar TECHNICAL SPECIFICATIONS Page 90 113 13 3 GEO S12 Touring Applications Accessories 13 3 1 GPT BUMPER Parts 04GPT BUMPER Dimensions 294mm 656 mm Weight 20 kg 44 1 Lbs TECHNICAL SPECIFICATIONS Page 91 113 13 3 2 GEO 12 Rigging P
96. proper set of speaker cabinet They are not interchangeable Its main functions are e To optimize the response of the system e When operating with the SubBass system optional splitting the stereo 2 channel signal into 2 frequency bands S12 main system and SubBass system e Active protection of the cabinets by dynamic audio signal processing Temperature and Displacement servo control e Reduction of amplifier overload Peak limiter function Analogue TDcontrollers also feature e Stereo operation 2 independent channels for the main system Global switchable output level e Adjustable level on the SubBass channel NEXO ANALOGUE GEO 51270 CONTROLLER Page 73 113 e High CMRR input stage and High current drive output e Compensation of power compression effects on the system response curve The Analogue TDcontroller is designed to be inserted between the Audio source console preamplifier etc and the power amplifier 9 4 2 Front Panel Most front panel functions and indicators are located inside 2 distinct windows left hand areas relate to functions and indicators dedicated to the optional Sub bass section while right hand window contains indicators concerning servo control operation for the 12 cabinets For more technical details about servo control operation and internal electronic processing please refer to section TDcontroller REFERENCE GUIDE Page 75 Turning the LS channel Overlap Crossover Pushing
97. rivers in and out You should hear a reduction in the LF range when the both front and rear drivers are on as compared to when the rear drivers only are on When listening from the front you should hear a strong increase in the LF range when connecting the rear drivers To check that all front elements have the proper amplitude and phase you should listen to the upper boxes at a close distance lt 1 meter You should be able to move from the top to the bottom of the cluster without hearing any change in the tonal balance Verify that the angle settings are the same on both sides of each module Raise the bumper attach the next series of modules and repeat the above checks Make sure that these series of modules sum properly with the modules above them When all the modules are flown check that the aiming angles are the same left and right Make sure that multiple GEO 512 and 515 S2 CD18 GEO SUB are summing properly 6 dB gain per doubling of quantity 12 5 Final Pre Sound Check Check Play a CD track mono left and then right both sides must sound strictly identical When listening in the centre between Left and Right GEO 5125 everything from LF to HF should be located to the phantom centre position If not repeat the above check sequence to identify the source of the problem 86 113 TECHNICAL SPECIFICATIONS 13 TECHNICAL SPECIFICATIONS 13 1 GEO S1230 Module 13 1 1 System specifications PRODUCT FEA
98. roperly dimensioned Procedure e Connect the bumper and the two L brackets using the screws washers and bolts provided in the VNI LBRK kit e Proceed as in preceding section 4slings and 4 shackle not provided are required to secure the cluster under the ceiling 44 113 GEO 512 HARDWARE SETUP PROCEDURE 8 3 6 512 horizontal array rigidly mounted on a ceiling Required items 2x VNI ABRK allows rigid ceiling suspension for horizontal arrays e N 1 x GPI ANPL for a N x GEO S12 array ANPL1 ranges from 0 2 to 3 15 ANPL2 ranges from 5 to 10 ANPL3 ranges from 16 to 30 e Four 12mm diameter screws not provided IMPORTANT Ensure that the ceiling is strong enough to hold GEO S12 cluster weight and that the four screws 12mm diameter and corresponding plugs required to fix the L brackets under the ceiling are properly dimensioned Procedure e 1 Set all GEO 512 side by side 2 3 Remove the four screws holding connector plates on upper side of all GEO 5125 Remove the connector plates from all Geo 5125 4 Fill each screw hole with Locktite 243 or equivalent 5 Position bottom external plates angle plates and top external plate from GPI ANPL kit to required inter cabinet angle value between cabinets upper sides e 6 Screw all shoulder screws from GPI ANPL kits so that all plates and cabinets are tightened together
99. sant with the operation of the GEO 512 Rigging System and provided with suitable safety equipment should deploy GEO Arrays Misuse of the GEO 512 Rigging System could lead to dangerous consequences Used and maintained correctly the GEO S12 Rigging System will give many years of reliable service in portable systems Please take the time to read and understand this manual Always use GEOSoft2 to determine the optimum angle settings for a particular venue hang point and curved vertical GEO 512 cluster Applied forces and moments are strongly cabinet quantity and angle configuration dependent Cluster configuration must be implemented and validated in Geosoft2 prior to installation 8 1 1 Flown Systems Safety e Always inspect all the rigging components and cabinets for damage before assembly Pay special attention to the lifting points and safety clips If you suspect that any of the components are damaged or defective DO NOT USE THE AFFECTED PARTS Contact your supplier for replacements e Read this manual carefully Also be familiar with the manuals and safe working procedures for any ancillary equipment that will be used with the GEO 512 Rigging System e Applied forces and moments are strongly cabinet quantity and angle configuration dependent Cluster configuration must be implemented and validated in Geosoft2 prior to installation e Ensure that all local and National regulations regarding the safety and operation of flying equipment are u
100. se harmful interference and void the FCC authorization to operate this equipment 70 113 NEXO ANALOGUE GEO 51270 CONTROLLER RISK OF ELECTRIC SHOCK DO OPEN The lightning flash with arrowhead The exclamation point within an symbol within an equilateral triangie WARNING reduce the risk of fire or electric shock equilateral triangle is intended to is intended to alert the user to the do not expose this apparatus to rain or moistu alert the user to the presence of presence of uninsulated dangerous important operating and To avoid electrical shock do not remove covers Dangerous voltages exist inside maintenance servicing instructions in the literature accompanying the appliance voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons Refer all servicing to qualified personnel only WARNING THIS APPLIANCE CLASS 1 APPARATUS AND MUST BE EATHED The green and yellow wire of the mains cord must always be connected to an installation safety earth or ground The earth is essential for personal safety as well as the correct operation of the system and is internally connected to all exposed metal surfaces Additional recommendation for interconnection to other equipment can be found in the Analogue TDcontroller Setting Up Advice section 9 3 Analogue TDcontroller Setting Up Advice 9 3 1 Mains Power
101. should be inserted in connector PCB Passive In and Connector D Passive Out should be connected to speakers via connector C e Active Mode WAGO Connector from filter should be directly connected into to speakers via connector C PCB connectors B amp D are then unused 2 1 3 Cabling NEXO recommends the exclusive use of multi conductor cables to connect the system the cable kit is compatible with all the cabinets and there is no possible confusion between LF MF and HF sections Cable choice consists mainly of selecting cables of the correct sectional dimension size in relation to the load resistance and the cable length Too small a cable section will increase both its serial resistance and its capacitance this reduces the electrical power delivered to the loudspeaker and can also induce response damping factor variations For a serial resistance less or equal to 4 of the load impedance damping factor 25 the maximum cable length is given by Lmax ZXS Zin Ohm Lmax in meters The table below indicates these values for 3 common sizes Load Impedance 2 Cable section 1 5 mm AWG 14 2 5 mm AWG 12 4 mm AWG 10 14 113 GEO 512 GENERAL SET UP INSTRUCTIONS 2 1 4 Example e GEO 512 has a 16 Ohms nominal impedance in passive mode so 4x Geo 512 wired in parallel will present a 16 4 4 Ohm load impedance The maximum acceptable 2x2 5 AWG 12 ca
102. t safety pins are properly locked into GEO S12s connecting panels Adjust inter cabinet angle and lock to required angle value with 8x20 quick release pins Position U bracket over these side plates align centre holes Insert adjustment handles adjust vertical angle and tight the handles to prevent GEO S12s from rotating around U bracket Cable suspension Connect lifting ring VNT XHBRK to U bracket by inserting 8x45 quick release pin dedicated holes Ensure lifting ring is properly locked to U bracket Connect assembly to suspension point with sling and shackle not provided Truss suspension Connect truss hook VNT TCBRK to U bracket by inserting 8x45 quick release pin in dedicated holes Ensure truss hook is properly locked to U bracket Lift and position assembly lock hook on truss suspension point and secure with hook cable GEO 512 HARDWARE SETUP PROCEDURE Page 57 113 8 4 7 Two more GEO 12 flown vertically Required items N Pair of Rigging Plates GPT XBOW for N cabinets e 1 lifting ring VNT XHBRk every two GEO 512 4xN Quick release pins for cabinets e Properly rated slings shackles hoists not provided IMPORTANT Lifting ring VNT XHBRK and truss hook VNT TCBRK are rated for a maximum of 2 GEO 5125 Ensure that suspension points are rated accordingly Procedure e Insert GPT XBOW into connecting plates of both sides of the cabinet e Lock sa
103. te 243 or equivalent e Position the GEO 512 inside the U Bracket to desired angle U bracket oblong holes must be properly aligned with panels holes e Use the eight screws and washers from VNI UBRK12 kit to connect U bracket to cabinet 40 113 GEO 512 HARDWARE SETUP PROCEDURE 8 3 3 Single GEO 512 cable mounted on wall or a ceiling vertical or horizontal Required items e 10r2xVNI LBRK allows cable suspension holes for cable suspension are 10mm diameter e 2or4slings and corresponding shackles not provided IMPORTANT Ensure that the ceiling is strong enough to hold GEO S12 weight and that the cable suspension system required to install the cabinet under the ceiling is properly dimensioned Procedure Vertical e Remove the four TORX screws holding connector plate on upper side of GEO S12 e Remove the connector plate from Geo 512 e Fil each screw hole with Locktite 243 or equivalent e Position external plate from VNI LBRK kit and secure it using the 2 of the 4 shoulder screws supplied with this kit e Position L bracket from VNI LBRK kit and secure it to the cabinet using the 2 remaining shoulder screws supplied with this kit e Slings and shackles not provided are required to secure the cluster under the ceiling Horizontal e Remove the four TORX screws holding connector plates on both side of GEO S12 e Remove the connector plates from G
104. ternal plate from GPI ANPL to required inter cabinet angle value between cabinets upper sides e 6 Screw all shoulder screws from GPI ANPL kits so that all plates and cabinets are tightened together 42 113 GEO 512 HARDWARE SETUP PROCEDURE e 7 Flip the cluster upside down to access connector plates located on the down side e 8 Repeat all above steps from 2 to 6 12 9 Position the GPI BUMPER bumper to required angle position use the four shoulder screws from GPI BUMPER kit to connect it the bumper to the top cabinet pio uw BB 10 Flip GEO 512 cluster by 90 so that it is ready to be positioned under the ceiling e 11 Four screws 12mm diameter not provided are required to secure the bumper under the ceiling GEO 512 HARDWARE SETUP PROCEDURE Page 43 113 8 3 5 GEO 512 vertical array cable mounted on a ceiling Required items 1x GPI BUMPER e 2x VNI LBRK allows cable suspension for bumper holes for cable suspension are 10mm diameter e N 1 x GPI ANPL for a x GEO S12 array ANPL1 ranges from 0 2 to 3 15 ANPL2 ranges from 5 to 10 ANPL3 ranges from 16 to 30 e 4slings and shackles not provided IMPORTANT Ensure that the ceiling is strong enough to hold GEO S12 cluster weight and that the cables suspension system required fixing the bumper under the ceiling is p
105. the CONFIGURE button modifies the high pass filtering It does not affect the sub output which will always be filtered sub signal This is therefore not a Sub on off r 128 1200 wren 500 button In the Overlap position wQ dr the S12 is exploited to its maximum capability This position should be used if the system is being used without a Subbass It can also be used with the Subbass In this case there will be a boost in the crossover area The lt Cross over gt position is generally recommended when using the Subbass Adjusting the Subbass level Sub Level The potentiometer adjusts the level of the Subbass channel a range of 12 dB allows a variety of configurations and application conditions to be accommodated Center sus pise position of the knob is calibrated for 1 E Subbass used with 2 distant 512 Lerr xp ee WE L1 AMP PRO Amplifier amp Protection indicator The bicolor green red AMP LED indicates signal ANALOGUE presence at the sense input of the concerned channel allowing visual confirmation of the return T connection of the Sense cables from the amplifier output The LED is flashing red when the Peak NON limiter is acting reducing excessive peak voltage RE or levels capable of overloading the channel amplifier LF HF 400 RIGHT e The yellow LED indicates that displacement protection for
106. the installation Consider taking a training course in using one of these tools if you are not already competent with them it will pay dividends in increased performance of the system 84 113 GEO 12 RS15 CD18 S2 GEOSUB SYSTEM CHECK LIST 12 GEO 12 RS15 CD18 S2 GEOSUB SYSTEM CHECK LIST It is essential to execute all these check steps prior to perform a sound check on the front end to the system Following this checklist step by step will prevent many troubles and will save time in the end 12 1 Are the NX242 Digital TDcontrollers properly configured IMPORTANT If you must change any of the parameters listed above make sure that you use the same values on all NX242 s 12 1 1 NX242 settings Output Assignment NX Setup NXChannel 1 2 3 4 GEOS12 Passive 4 Channels GEO 512 Chl GEO 512 Ch2 GEO 512 Ch3 GEO 512 Ch4 RS15 Omni Stereo GEOS12 Passive Stereo RS15 Left RS15 Right GEO S12 Left Geo 12 Right RS15 Cardio Mono GEOS12 Passive Stereo RS15 Rear RS15 Front GEO S12 Left Geo 12 Right 52 Stereo GEOS12 Passive Stereo S2 Left 52 Right GEO S12 Left Geo 512 Right CD18 Mono GEOS12 Passive Stereo 1 CD18 Rear CD18 Front GEO S12 Left Geo 512 Right GEO SUB Mono GEOS12 Passive Stereo 1 GEO SUB Rear GEO SUB Front GEO S12 Left Geo S12 Right GEOS12 Active 2 Channels GEO S12 LF Left GEOS12 HF Left GEO 512 LF Right GEO 512 HF Right RS15 Cardio GEOS12 Active Mono RS15 Re
107. ttention to maintenance in order to give long and reliable service NEXO recommends regular testing of loudspeaker rigging components preferably using a suitable test rig coupled with a visual inspection Fasteners there are several critical points in the GEO S12 cabinets Of primary concern are a The grid screws attaching the grid to the cabinet b The machine screws attaching the connecting plates to the cabinet c The screws attaching the directivity flanges to the front of the cabinet These fasteners should be regularly checked and tightened as necessary Cleaning The exterior of the cabinet and the rigging system can be cleaned with a damp cloth soaked in mild soapy water On no account use solvent based cleaners which may damage the finish of the cabinet After cleaning the rigging system must be treated with a suitable lubricant to prevent rusting NEXO recommends the use of Scottoil FS365 which is a water based lubricant with a mixture of machine oil surfactant and anti rust treatment ANALOGUE GEO S12TD CONTROLLER Page 69 113 9 NEXO ANALOGUE GEO S12TD CONTROLLER 9 1 Analogue TDcontroller Declaration of conformity This equipment has been tested and found to comply with the safety objectives and essential requirements of European 73 23 EEC and 89 336 EEC directives and international Standards by fulfilling the requirements of the following harmonized standards Electrical Safety EU IEC 60065 1
108. ventional horns the lack of precision overlap and interference masks errors in array design and aiming The highly precise GEO wavesource responds accurately consistently and predictably to the design and deployment of a curved vertical tangent array This is why the GEO rigging system is designed to control angular splay to 0 01 precision GEO curved tangent arrays require different operational techniques Over the years system designers and operators have developed a number of signal processing techniques to disguise and partly overcome the limitations of horn design Frequency shading amplitude shading system tuning all of these are tools of the advanced sound system operator NONE OF THESE TECHNIQUES ARE APPLICABLE TO GEO TANGENT ARRAYS Instead of enhancing the array s performance they will severely degrade it Take time to learn how to get great results with GEO Technology It is an investment that will pay off in more Satisfied clients more efficient operating procedures and more recognition for your skill as a sound system designer and operator A comprehensive understanding of GEO theory tangent arrays and specific features of the GEO 512 Series will help you to operate your system at its full potential PLEASE READ CAREFULLY BEFORE PROCEEDING Page 3 113 PLEASE READ CAREFULLY BEFORE PROCEEDING BASIC PRECAUTIONS Do not open the speaker system or attempt to disassemble the internal parts or modify the
109. ws and bolt Slide GPT PSBRK lower half plates into lower GEO 512 connecting plate oblong holes Lock safety pins into lower GEO 512 connecting plate Position U bracket over these lower half plates align centre holes Insert adjustment handles adjust vertical angle and tight the handles to prevent GEO S12 from rotating around U bracket Lift assembly on Wind Up stand or on RS15 with PLSTD pole stand Slide GPT PSBRK upper half plates into upper GEO 512 connecting plate oblong holes Lock safety pins into upper GEO S12 connecting plate Lift upper GEO S12 on top of lower one and connect them together by inserting 8x20 quick release pins in articulation holes Adjust inter cabinet angle and lock to required angle value with quick release pins IMPORTANT Ensure that safety pins are properly locked into GEO S12 connecting panels GEO 512 HARDWARE SETUP PROCEDURE Page 55 113 56 113 GEO 512 HARDWARE SETUP PROCEDURE 8 4 6 Two GEO 12 flown horizontally Required items 1 x U Bracket for two GEO 5125 GPT PSBRK 1 x Lifting Ring VNT XHBRK Or 1 x Truss hook VNT TCBRK IMPORTANT Ensure that suspension point is strong enough to hold two GEO S12s weight Procedure Slide GPT PSBRK side plates into GEO 5125 connecting plate oblong holes Lock safety pins into GEO 5125 connecting plate IMPORTANT Ensure tha

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