Soundcraft GB Series Brochure
Contents
1.2. e F 13dB ATR CIRM ic LEVEL 2 encom NES 5 38 17 8dl OdBu RECTIFIER LR 2 a m V L_MONSEL dues all 1 c3 p l B m Cep PFL BUS Q E 068 gt rum C RM R 4 4 4 Ht 2 2 9 9 PHONO aM sm gt gt 1 oa elu i d gt gt REPLAY S Odbu STEREO INPUT 9 NEE et s MONITOR SELECT SWITCHES 1 E 8 9 CHASS 1 T 1 d 1 v m m 66 lt CHASS s UH 8 8 gt ren ONES H PHONES i 1 Ll NL bod TALKBACK GROUPS AUX 1 2 AUX 5 4 AUX 5 6 AUX 7 8 a 6 300 O Ls C 6 Lo 2TRK REPLAY amp MONITOR SELECT ON LEFT HAND MASTER PCB o PFL AFL 8 i 1 o eee 5 CRM L LEVEL PEAK qum GND 1 GROUPS AUX 1 2 AUX 3 4 AUX 5 6 AUX 7 8 1 6dB E moe 0 0 LATE Tm CHAS 9 CHASS E ENABLE BUS MNO MASTER RIGHT MASTER RIGHT ais 1 eet C RM ES lt A a H xe CHAS
3. AS ON MONO EE ua Bg r 4 T Od 4 5 2 8 INSERT E s w s x 2 S55 25383 85 85 b GRP 1 2 3 4 2 Es gga f Insert GRP 18 re b 22482 8 5 2 12 SEGMENT LED METER 000000000000 xke O A alte Ses I p AUXI_PRE 000000000000 9 5 PEAK n LL c mc M ae qus ru Ha z mme ps ex 3 Q Me 850 99 mE 1 MIC AN 6dB FROM TOP els PAN GED o OdBu 1 GROUP READING AUX1_PST CHASS cus 508 FADER RECTIFIER O yr ms m nm v 48 READING O p HM ne i o 259955 AUX3 ooBu 48 ia b bus t LR 1 9 gll lt 9 1008 A 0 HF HMID LMID LF L MUTE i ua L CA 068 eT 9 9 lt gt 9 AUX2 PRE p q 10dB R TENA E GND P 0 8 t 13k D AM 30 Sora 56 Ng GRP BUS 0 CHAS 9 T 9 19 e 550 C f t TM f pst 8 LINE AUXS PRE AUX 1 2 3 4 L9 NL L L y gesn te PIE Ter T L AUX ALL MATRIX SEND POTS HAVE UNITY LINE 9 59 H AUX 1 8 MASTER GAIN 5cB DOWN FROM THE TOP SND i LINE 2068 1568 15dB 15dB 1568 SIMILAR FOR ase E 4156 1568 AUX PST 0 pn cosu D AX S TO E MN ALL M
4. 1dB Mic sens 30dBu 20dBu at all outputs Q1kHz 0 00696 Measured RMS 22Hz to 22kHz Bandwidth Mic E I N unity gain 150 source impedance 128dBu Mix Output 40 inputs routed to mix 82dBu Group amp Centre OUtputs oisi 1 1 4 E Dre Ecce Dive eee ERE 5 83dBu Aux Outputs GB2 Groups only scisco 555885888 8588869 80dBu Matrix OUTPUTS uc e ERR ANN SD DM ERE DIE ees 89dBu Input Channel MULGS ex re E Rer lt 9708 aa e lt 95dB PamisolatiOM O lt 75dB lt 97dB Group isolati0m eee ervex sana Rael lt 9708 Adjacent channel crosstalk 99dB Group to a 84dB Aux Send pots offness typical eeeeeeeernnee 84dB Matrix Send pots offness typical eeeees 84dB TV ISG Ro 80dB PLEASE NOTE GB2R noise crosstalk and CMRR specifications exceed the standard GB Series specifications please check the website for full details Input amp Output Mono amp Stereo Mic Inputs 11seeee eene nnn 15dBu Max Levels Mono amp Stereo Line Inputs ee 30dBu Stereo Returns amp Insert Returns 20dBu ANY OLD 20dBu Nominal Operating Beyer ecco eee ec eee ree ann rank ee nnn naa OdBu Headphone Powe
5. ar 4 En ATA CLA DESIGNER 1111111111 4 10 E TE 19 TH 2 TE LEVEL a 1 0 V s Lu SOURCE Ph an Y MIND e HOOM 1 8 5 0 O 4 MI a PF mu Auxiliary Masters ud a Ue 1 4 wx 7 MASTER SECTION throw mix fader The Mix outputs may be routed to The ss each Auxiliary output XLRs A Connections the C Mono bus should only a mono PA be balanced jacks 5 6 on the rear panel is controlled 8 X El L R Mix and a mono sum output appear on required or an induction loop need to be fed by a rotary control with a button for AFL E balanced XLR with jack insert points on the L R itegval Power Supply L outputs A balanced XLR input allows a talkback m i Rec Output ead mic to be connected Two control room outputs for emgiengy SMPs Recordi tput ided on 10dBv ph e un design Switched Mode Power Supply unit that ouput E opine makes for cooler operation and lighter weight The connectors They provide a post fade send from the w d d bd ios ans balanced 1 4 jacks L and R signals may be fed L R mix ito each otthao malit 005588 ix is capable of accepting a wide range of AC Sa o input voltages without any internal or external 2TRK Inputs switch changes An external DPS 3 power supply Stereo Returns El pair of unbalanced 1
6. GRAHAM BLYTH Graham Blyth Soundcraft s co founder and Technical Director has taken the well established and classic Soundcraft microphone preamplifier to a new level of performance resulting in the new GB30 preamp which boasts extraordinary clarity with exceptionally controlled overload characteristics Soundcraft s legendary 4 band EQ has also been improved further with the addition of elements derived from Soundcraft s highly successful MH Series consoles This new design delivers the sound of the classic British EQ enhanced even further with more focused HF and LF shelving sections Soundcraft Registered Community Trade Mark RTM No 000557827 SOUNDCRAFT HARMAN INTERNATIONAL INDUSTRIES LTD CRANBORNE HOUSE CRANBORNE ROAD POTTERS BAR HERTS EN6 3JN UK T 44 0 1707 665000 F 44 0 1707 660742 E info soundcraft com SOUNDCRAFT USA 8500 BALBOA BLVD NORTHRIDGE CA 91329 USA T 1 818 920 3212 F 1 818 920 3208 E soundcraft usa harman com www soundcraft com Soundcraft reserves the right to improve or otherwise alter any information supplied in this document or any other documentation supplied hereafter E amp OE 12 07 This equipment complies with the EMC Directive 89 336 EEC Part No ZL062 7 04 CE H A Harman International Company TYPICAL SPECIFICATIONS Frequency Response THD N Noise Crosstalk 1kHZz typical CMRR Mic Line Input to any output 20Hz 20kHz
7. TH 1 5 ari yO 44400210 17 5 E gt N gt 064000 0 l la la la lw lai x MAL 004400 NM 090 la r L la m A e a d da la ha T 1 de e Ve e L 1 L als 1 NET Am 1 L E E enean 565 56 Ww pr L Fam gt z ET jer i 4 Tah Se 6 5 1 it 1 6 0000 fo da fr Iw oe B ln TT EEE 7 IMIBIBIM NM 5 ARMEN Er da dy da da da c A 222 e 1 MERR i i 7 A BLE xli BLEU BLA m x a ME NI NIS O M 1 4 DUAL MODE TOPOLOGY LINE TO MIX aga LINE TO CHAN TEL bl PEN J E GB8 amp GB4 INPUTS GIES GE aaa a a Em E Ema e E E GB2 amp GB2R INPUTS GB4 Mono Input
8. PFL 2 MONO INPUT a MIC pu bo 4 304 5 6 PHONO pA ia HON a ee fap an 89 c ou gt 9 9 55 300 CHASS Au 8 2 CAN LY 6 REC ALT 8 E 5aB FROM IOP 20 GAIN e x LIMITER eae AU Oo 6068 n OH f ON 2 a e Ro 5 5 odB ALLAUX SENDS u HAVE UNITY ALT R 6 548 GAIN LINE UP NW es ET AUXS 6 HF HMID LMID LF 6dB FROM TOP AUX1_PST Fh GND n 1048 ou am 4 VL t R OUT t VL ue me 15dB max 2 EK EQ C 6 a z x 7 i 1508 ALT OUTPUTS ON LEFT HAND MASTER PCB 1508 1508 1508 15dB M No J E DETECT MONO UNS PRE 9 REC REC_L 9 9 1 L MONSE 9 9 e 15dB MASTER 1508 1508 EE EE AGREE 9 Ses BS C L R TE E odBu Th n odBu GND PST R MONS lt 9 2 9 1568 1598 1598 15dB LH NL C3 MONITOR SELECT SWITCHES PS PEAK MONO 1 C An MIC f 9 1598 15dB 15dB 1598 Pure R 4C AUX6_PRE CHASS 5 a A LIMITER HE HMD IMD TF SOH po ON ot PHONO 9 GND 300mV 1 lt gt lt gt m OdBu LL MIC REC R T OdBu dM AUX7_PRE PUSH 108 GND HF HMD LMID LF t E d C LJ 5 068 NL OdBu LY 2 Odu 55 1 gt lt gt CHASS N 3dBu 3dBu OdBu dei 13
9. independent 2 TRK rotary level control is also provided monitor either the 2 track return Mix or Sub Groups 12 2 model only via the control room outputs or headphones A headphone jack is provided for use with headphones with impedances of 100 Ohms or greater Both the control room and 2 track return levels can be altered using the associated controls It is also possible to switch the 2 track return input to Mix adding to whatever signal is already present on the mix output by pressing 2 TRK TO MIX This allows easy playing of pre show music at a single button press without having to make any alterations to the band s settings Metering 12 segment Peak reading bargraph meters can be selected to display 2 track return Mix or Sub Group 12 2 model only when the appropriate control room selection is made If any input or Auxiliary master is soloed then the PFL AFL LED illuminates and the master meters show PFL AFL levels instead 100mm Master Faders Output levels are controlled by dual 100mm long throw mix faders Integral Power Supply The console is fitted with a high efficiency SMPS design Switched Mode Power Supply unit that makes for cooler operation and lighter weight The PSU is capable of accepting a wide range of AC input voltages without any internal or external switch changes S STEREO RET XS Y mix 7 TK TO MIX 2 TK LEVEL x ME 5 Aa MONITOR PFL SOURCE am C ADOM
10. sections have steeper slopes than usual which substantially reduces mid frequency harshness in the HF band and muddiness in the LF This increase in cleanliness of response is further enhanced by an element of undershoot and overshoot in the boost cut response It has two swept mid frequencies carefully selected for optimum control during live performances All bands provide 15dB of cut or boost The Low frequency equaliser response shelves at 80Hz The swept Lo Mid control operates between 80Hz and 1 9kHz The swept Hi Mid control operates at frequencies between 550Hz and 13kHz The fixed High frequency equaliser response shelves at 13kHz EQ Switch The EQ section can be bypassed using the EQ switch allowing comparison of treated and untreated sounds without having to reset controls Auxiliary Sends The GB4 has 8 flexible Auxiliary sends which allow the choice of either monitor or effects orientated mixes Auxes 1 4 are pre fader and in normal operation are routed to the rotary Aux masters 1 4 In SWAP mode they are routed to Group faders 1 4 and Group meters 1 4 ideal for monitor mixing applications Auxes 5 to 8 are pre post switchable globally assigned selectable per Aux bus from the Master Section The GB8 s 8 Auxiliary sends Fig 1 are globally selectable per Aux bus between pre post fade The Auxes are routed to rotary Aux masters which all feature SWAP mode Level Control and Routing On the GBA the signal on each fader ca
11. 08 1 gt T z PFL ps PHONO ot a ea Fix Pre CHASS an ud 2 1 BAL Ox acro O BAL REC OUTPUTS ON RIGHT HAND MASTER PCB MUTE LJ LJ d ird Ol o SMUE MIX R LINE ae ASON nm 3dBu 3dBu 0dBu x per 38 PST de 41348 5 i u 5 ee R OUT PFL MUTE L g MIXI MIX2 MIX3 Mixa CHASS 2 1 pue E RMX m 5 at ae als READING x CX U O BAL Crass 5 5 GND RECTIFIER o SWITCHES R MIX BUS 1008 1 CHASS gt INPUT 000000000000 000000000000
12. 0dBv phono connectors may be connected for redundancy operation Two ia retums are avallable with Level controls eet dd Sa labelled 2TRK In allow pre show music to be TAMEO replayed An independent 2 TRK rotary level control SUD group is also provided BN 8 Et 83 834 BN ER sj eje e e GB2 Outputs amp Master GB2R 12 2 Outputs amp Master GB2R 16 Outputs amp Master 084 SYSTEM BLOCK DIAGRAM GB8 SYSTEM BLOCK DIAGRAM GBE 091 1527 a Een pes Ed E 61
13. 2 5 a2 482 8 5 2 082 0821 SYSTEM BLOCK DIAGRAMS ON REAR CON MONO INPUT d gt me INS ER 1 m AP O AUX 5 6 MODE POST OR FOLLOW o AUX 3 4 DIRECT lt gt 88 AUX PRE MODE MUTE POST PRE EQ MUTE Y O O z z 88 ans SIGNAL PRESENT 7 APEAK ca le GB2R12 2 SUB IDENTICAL FOR 9 GROUPS 3 4 GB2 RJ 2 STEREO INPUT NOT GB2R 16 MIC GAIN 5 60dB LINE TO MIX LINE TO CHAN AUX 2 4 6 AS BELOW 9 Lixnv v LdHOu8ns 134 N3 070S AUX1 608 AUX3 1608 A 4 4 eJ LS L 1 AUX 1 OUT SUBL 1008 n Sa INSERT GROUPS 3 4 AS ABOVE FADER 1008 H n 4 SIGNAL PRESENT AUX 5 6 MODE POST OR FOLLOW AUX3 4 IDENTICAL FOR GROUPS 3 4 GB2 AUX5 608 AL gt 4 1 gt e LINKS FITTED SWITCH FITTED ON GB2R 16 ON 6828 12 2 qx ro o LEVE T at gl STEREO RTN 2 AS ABOVE e ge 68 MATRIX wv eq 1 E Ek e M MATRIX 1 OUT MATRIX 2 AS ABOVE TB GAIN ma El capo SHTITIIIITITI H PHONES Y 1XIIA 34 al YeR lt LEE _ ren Bs ra nae x o c 5 1 2 eo o 5 E n a a v 0 c N3 OTOS TOP PANEL CONNECTORS DIMS amp WEIGHTS GB8 GB4 GB2 OV
14. ATRIX SEND POTS HAVE UNITY gt A Y 0 T MIX2 MIX3 Ma 6 55 AUX BUS ER LY SE 8 1 C 15dB asa E 1508 15dB odBu SS 5 048 1 0 BB 1 2 34 MTX1 MTX2 MTX3 MTX4 CHASS INSERT AUX6_PRE 3 1 1 o lx ES IS 9 GHASS 9 9 098 MATX 1 4 xc INSERT MUTE por 30 Sas oS aie m Ax AUX 5 6 7 8 R 9 mmm om C LR 1 2 3 4 sn 1 PSI 5 6 7 8 a MASER OdBu i C Lo 65aBu sed oaBu GND qr ci AUX7_PRE o gt z LR 12 34 56 78 B CHASS DIRECT m v Eni GROUP AUX SECTION 1 8 HAS L t3 E PAN 368 CENTRE DROP e e esoo Mi DIRECT UE l 1 MATRIX MASTER O Ar L 68 Ce a NET 9 T loo 9 9 9 9 9 eu E STE RET 1 4 i A HL 398 CENTRE DROP gt 1568 IM MATX BUS GRP ODD BUS MATRIX MATX 1 2 3 4 fur m m s Ma m m m a 1234 Ll AUX8_PRE m gt CHASS GND 8 1 1 L E Re eo i i LMXBUS 6 T a a PS le ar Y 1 2 3 4 us o o o 9 o 9 te ATTOP OdBu CHASS CHASE LR OdBu READING orn GND gt gt RECTIFIER 3 O m GRP EVEN BUS A 9 Of 6 c GROUP AUX MATRIX OUTPUT PEAK 52 1 b meus D ARA 7 0 O 10 CHAS RECIALT REC ALT L E MASTER 0dau Cd u GND 1 Lor E ge MONO INPUT 9 5 ALT L cu m MASTER
15. Channel q jm mug mmm 5881 bE sE E GB4 Stereo Input Channel ze bh a Xo e n MONO INPUT MODULE Mic Input A balanced XLR connector accepts balanced or unbalanced mic signals Line Input A balanced 1 4 jack accepts balanced or unbalanced line level sources such as keyboards 48V Phantom Power Phantom power is individually switchable on every channel with front panel LED indication of status Phase Reverse Phase reverse is individually switchable on every channel Input Stage Precision low noise mic preamps deliver continuously variable gain between 508 and 6008 A Peak LED indicates internal signal levels in excess of 18dBu High Pass Filter A steep 18dB per Octave High Pass Filter is included straight after the preamp to reduce low frequency rumble on stage and clean up vocal performances Insert A pre fade pre EQ but post HPF insert point is provided for patching in Limiters Graphic Equalisers or other signal processors It may also be used for recording Direct Output A direct output is also available on every mono channel with individual pre post fader switching situated on the rear panel This allows the direct outputs to be equally useful for effects send applications or multitrack tape feeds EQ Section GB Series consoles incorporate the GB30 4 band equaliser section based on that used in the high end MH Series Both the HF and LF shelving
16. ERHEAD VIEW NB GB8 32 channel model shown GB4 and GB2 Channel and Outputs amp Master section differences are highlighted in the preceding pages 1 AAA H TULLE 11111 1111111 LLL LLAMAN O AAA gt E see AAA REAR PANEL CONNECTIONS NB GB8 32 channel model shown DIMENSIONS amp WEIGHTS GB8 Frame Size Width 16 Ch 984mm 38 74 24 Ch 1208mm 47 56 32 Ch 1442mm 56 77 40 Ch 1666mm 65 59 48 Ch 1889mm 74 37 GB4 Frame Size Width 12 Ch 730mm 28 73 16 Ch 842mm 33 13 24 Ch 1065mm 41 93 32 Ch 1300mm 51 17 40 Ch 1523mm 59 96 GB2 Frame Size Width 16 Ch 790mm 31 10 24 Ch 1013mm 39 88 32 Ch 1247mm 49 09 GB2R Width GB2R 12 2 483mm 19 with rack ears 440mm 17 32 without rack ears GB2R 16 483mm 19 with rack ears 440mm 17 32 without rack ears Weight 25kg 55 1Ibs 30kg 66 1Ibs 35kg 77 2lbs 40kg 88 2lbs 45kg 99 2Ibs Weight 20kg 44 1lbs 22kg 48 5lbs 27kg 59 5lbs 32kg 70 5lbs 37kg 81 6lbs 235mm 9 23 159mm 6 26 10mm 0 39 Weight 22kg 48 5lbs 25kg 55 1105 6828 OVERHEAD VIEW NB GB2R 16 shown amp amp amp a SGD AAA AMA AAA NB GB2R 12 2 shown 656mm 25 83 30kg 66 1lbs NB The Meterpod is only available on the GB8 Weight 12 5kg 271lbs 12 5kg 271bs Rear c
17. R OUTPUTS amp MASTER GB L 4 a LI LI 8 4 L Hs 7 Bs X B AN s a A F kl te E Fi JA a 1 Lir 5 L 5 5 i 5 1 1 i 5 Ba de 9 da m ia EL i 9 5 a r E i 7 5 h 5 m 3 7 O foa Bi I p 1 4 8 P TES 3 E 2 i O i a 5 2 s E E i 7 5 283 Ric L k 6 di A B du 8 x m Li ow GROUP SECTION Rec Output GROUP SECTION 68218 12 2 Only CONTROL ROOM SECTION Recording outputs are provided on 10dBv phono Th iroj fonas TE 818 raft Soundcratt Group Outputs connectors They provide a post fade send from the Sub Group Output UC V UU y ap een Each Group has an impedance balanced XLR output connector allowing long cable runs on stage Insert Points Pre fade insert points are provided on jack connectors for the connection of Limiters Graphic Equalisers or other signal processors Group Metering Selectable 12 segment peak reading bargraph meters Matrix Assignment One rotary control per Group allows individual assignment to Matrices 1 2 Matrix Masters The level at each Matrix output XLR on the rear panel is controlled by a rotary control with buttons for AFL and Mute Auxiliary Masters The level at each Auxiliary output XLRs 1 4 balance
18. S A OdBu INSERT 4kHz 3 E 1 9 CHASS STE RET 1 m 2s 1 1 T B AND OSCILLATOR A lcg OdBu iain 1 5 7 wa we me wu ON CENTRE MASTER HPtoNEs H PHONES L OdBu dP E T 6 C gt C C gt SY A 868 GAIN al 1008 Du MSS e Gs ATTOP C MIX BUS amp 1 INSERT yc ER 1 4 CHASS Eo TN ON LEFT HAND Lour 4 MIXL e o runs 8 Y MASTER PCB Lux 8 Se TEN FADER Cus 8 PELMIR CHASS z a 7 s HAS 6 57 2 068 QE n OdBu 1 1 2005 RET2 8 our 4 STE RET 2 LEVEL 2 o SURER ENABLE BUS i o INSERT MONITORING SYSTEM ON RIGHT HAND MASTER PCB LES mi 3 ma 1 gt k gj 5 1 1 ON RIGHT HAND ROUT ma Las ame 8 MIX R o Of 8 al o Ot o Ot MASTER PCB C Cx E JP MUTE MASTERS AND CENTRE PFL 1 T FADER 8 6 METER ON CENTRE MASTER PCB R rmm dF gt A GND 572 En En 1 lt dis CHASS 0 GND 6 R MIX BUS B uj O s O MASTER CENTRE MASTER CENTRE 1 8 Y EE T 9 so m ER INSERT s33 5631365 I o 3 M1 M2 M3 M4 ON CENTRE e our MIX C lt O o MASTER PCB 58 PUDE a e 6 TONS AS an 1 UN ds CE 2 E 2 C 3 56 SNo E NB OdBu Hass RH 0dBu SND S sir 10dB 1 1 1 1 wok M 2 2 8 2 E 2 o EL gt E B 55 55
19. U 85V 270V AC Operating conditions 50 60Hz universal input Power consumption 22999 2 D Less than 150W Temperature range A OT 10 C to 30 C Relative hNUMI Q Y 0 0 to 80 Note These figures are typical of performance in a normal electromagnetic environment and are often exceeded Performance may be degraded in severe conditions All measurements refer to electronically balanced inputs and outputs GE Tris CG X GB lL LI IIL CG 395 Es 616010 E PROFESSIONAL MIXING CONSOLES Leur 3 dial aaa te ea ea a ee ee rer CONS T YOU COULDN T AFFORD ra 2 j 7 Y THE FULLY PROFESSIONAL LIV YOU THOU T A E il it LY M pm i os 1 1 pu 1 1 P Wi 1 mmm mmm mew a n i M3 1 Y 866 LI mii 1 ym 1 1 9 1 mum a 2 Ia MOL RU 5 pappe a la LI LI LI L LA 1 nami in EE aa T pra a m la 12 111111177 2 229 9 64 6 6 0 4 i si la UPPER ATL 3 A id 0 a la te ia da LM
20. anel LED 100mm Fader Professional grade 100mm faders provide accurate consistent control of audio levels and have superb cut off performance Metering Both GB2 and GB2R input channels feature peak and signal leds STEREO INPUT MODULE GB2 and GB2R 12 2 only The 2 stereo inputs allow connection of stereo sources or use as sophisticated effects returns The stereo input channels share all features with the mono input channels with the exception of the following Connections Each channel is equipped with both balanced jack and XLR pairs The left or right input can be selected if required as a single mono source to be routed to both paths Alternatively both the left and right signals can be mono summed EQ Section The equaliser section provides 15dB of cut or boost at each of 4 bands a HF shelf at 13kHz Hi Mid at 2 5kHz Lo Mid at 450Hz and a LF shelf at 80Hz Stereo Return When the XLR Mic input is selected to the channel the Line input can be switched to mix as an effects return or as another input to mix When the Line input is switched to the channel the XLR Mic input is disconnected GB2 GB2 Mono Input Stereo Input Channel Channel GB4 Outputs amp Master Group Outputs Each Group has an impedance balanced XLR output connector allowing long cable runs on stage Insert Points Pre fade insert points are provided on jack
21. connectors for the connection of Limiters Graphic Equalisers or other signal processors Group Metering GB4 has four 12 segment peak reading bargraph meters which display Group or Aux 1 4 in SWAP mode output levels a Matrix Assignment Four rotary controls per Group allow individual assignment to Matrices 1 4 Matrix Masters The level at each Matrix output balanced jack on the rear panel is controlled by a rotary control with a button for AFL Auxiliary Masters The level at each Auxiliary output balanced jack on the rear panel is controlled by a rotary control with a button for AFL Group Aux SWAI GB4 has four push buttons which swap the functions of Auxiliary 1 4 master rotary controls and Group master faders NB The 12 segment peak reading bargraph meters always display the signal selected to the Group faders i e Groups in normal operation or Auxes when used in SWAP mode Routing The signal on each Group fader can be routed to either the L R mix via the Pan control or to the C mono bus 100mm Group Faders The Group faders provide 10dB of extra gain above the zero mark whilst still ensuring smooth operation Each Group is also equipped with AFL Connections L R mix and C mono bus outputs appear on balanced XLR with jack insert points The L R mix is also provided on two pairs of balanced jack outputs and one pair of RCA phono outputs A balanced XLR input allows a talkback mic to be c
22. d jacks 5 6 on the rear panel is controlled by a rotary control with a button for AFL Routing The signal on each Group fader can be routed to the L R mix Stereo Width The channel pan settings are retained on the group outputs while the degree of stereo separation to the mix bus is independently adjustable on rotary controls from full stereo through to mono 100mm Group Faders The Group faders provide 10dB of extra gain above the zero mark whilst still ensuring smooth operation L R mix Talkback Section Once connected the engineers talkback mic can be routed to all Groups and or Auxes A rotary control governs talkback level Stereo Returns Stereo returns are accommodated via the stereo inputs These can be switched for simultaneous mic stereo return use or for line inputs see inputs CONTROL ROOM SECTION The control room section allows the engineer to monitor either the 2 track return Groups 1 amp 2 and 3 amp 4 or the Mix via the control room outputs or headphones A headphone jack is provided for use with headphones with impedances of 100 Ohms or greater Both the control room and 2 track return levels can be altered using the associated controls It is also possible to switch the 2 track return input to Mix adding to whatever signal is already present on the mix output by pressing 2 IRKTO MIX This allows easy playing of pre show music at a single button press without having to make any alterati
23. il Auxiliary strip detail Fader Controls section MONO INPUT MODULE Mic Input A balanced XLR connector accepts balanced or unbalanced mic signals Line Input A balanced 1 4 jack accepts balanced or unbalanced line level sources such as keyboards 48V Phantom Power Phantom power is individually switchable on every channel with front panel LED indication of status Phase Reverse Phase reverse is individually switchable on every channel Input Stage Precision low noise mic preamps deliver continuously variable gain between 5B and 6008 A Peak LED indicates internal signal levels in excess of 18dBu High Pass Filter A steep 18dB per Octave High Pass Filter is included straight after the preamp to reduce low frequency rumble on stage and clean up vocal performances Insert A pre fade pre EQ but post HPF insert point is provided for patching in Limiters Graphic Equalisers or other signal processors It may also be used for recording Direct Output A direct output is also available on every mono channel with individual pre post fader switching situated on the rear panel This allows the direct outputs to be equally useful for effects send applications or multitrack tape feeds Fig 1 Fig 2 Fig 4 GB2R 12 2 Mono GB2R 16 Mono GB2R 12 2 Stereo GB2R 12 2 Stereo channel fader channel fader channel input channel fader panel panel section panel EQ Section GB Series consoles incorporate the GB30 4 band e
24. n be routed to the L R mix via the Pan control the C mono bus and Groups 1 amp 2 and 3 amp 4 On the GB8 the signal can additionally be routed to Groups 5 amp 6 and 7 amp 8 Fig 2 Pan Turning the pan control full left or right enables odd or even groups or the left or right Mix bus to be accessed individually Solo PFL Each channel can be soloed pre fader post EQ to check levels PFL status is indicated via a front panel LED 100mm Fader Professional grade 100mm faders provide accurate consistent control of audio levels and have superb cut off performance Metering A 4 segment LED display on each 684 8 fader strip provides an instant reference for the signal level on that channel STEREO INPUT MODULE The stereo inputs 2 on the GB4 4 on the GB8 allow connection of stereo sources or use as sophisticated effects returns GB8 has four stereo inputs The stereo input channels share all features with the mono input channels with the exception of the following Connections Each channel is equipped with both balanced jack and XLR pairs The left or right input can be selected if required as a single mono source to be routed to both paths Alternatively both the left and right signals can be mono summed EQ Section The equaliser section provides 15dB of cut or boost at each of 4 bands a HF shelf at 13kHz Hi Mid at 2 5kHz Lo Mid at 450Hz and a LF shelf at 80Hz Fig 1 GB4 8 Channel GB4 8 Channel strip deta
25. nt peak reading bargraph meters which display Group or Aux 1 8 in SWAP mode output levels Group Aux SWAP GB8 has eight push buttons which swap the functions of Auxiliary 1 8 master rotary controls and Group master faders NB The 12 segment peak reading bargraph meters always display the signal selected to the Group faders i e Groups in normal operation or Auxes when used in SWAP mode Rec Alt Output GB8 features separate Record and Alternate output sections Outputs are provided on impedance balanced 1 4 jacks and unbalanced 10dBv phono connectors They provide a post fade send from the L R mix The C mono bus may be added and or the mix can be mono summed A rotary control governs level and a switchable limiter is provided Talkback Section GB8 additionally features a 1kHz oscillator with identical routing to the talkback Stereo Returns GB8 has four stereo returns provided for use with effects units or as simple stereo instrument inputs The rotary controls govern level Ste Ret 1 2 3 and 4 can be routed to Groups 1 2 3 4 5 6 and 1 8 respectively or the main L R mix GB8 boasts 3 true VU ballistic ANSI C16 5 LED meters which display the left right and C Mono outputs The correct classic VU response is achieved by using 2nd order rectifier filters not something you see every day 189 usq un GER 8 89 59 GB8 Outputs amp Master rm GB2 OUIPUTS amp MASTER GB2
26. onnected Two control room outputs for engineer monitoring are available on impedance balanced 1 4 jacks 2TRK Inputs A pair of unbalanced 10dBv phono connectors labelled 2TRK In allow pre show music to be replayed An independent 2 TRK rotary level control is also provided Rec Alt Output GB4 has a single Rec Alt section Outputs are provided on impedance balanced 1 4 jacks and unbalanced 10dBv phono connectors They provide a post fade send from the L R mix The C mono bus may be added and or the mix can be mono summed A rotary control governs level and a switchable limiter is provided Talkback Section Once connected the engineers talkback mic can be routed to all Groups and or Aux 1 2 3 4 5 6 amp 7 8 A rotary control governs talkback level Stereo Returns GB4 has two stereo returns provided for use with effects units or as simple stereo instrument inputs The rotary controls govern level Ste Ret 1 and 2 can be routed to Groups 1 2 and 3 4 respectively or the main L R mix CONTROL ROOM SECTION The control room section allows the engineer to monitor either the 2 track return the C Mono Bus or the Mix via the control room outputs or headphones A headphone jack is provided for use with headphones with impedances of 100 Ohms or greater Both the control room and 2 track return levels can be altered using the associated controls It is also possible to replace the Mix output signal with the 2 track re
27. onnector panel rotated for rack mounting
28. ons to the band s settings Metering 12 segment Peak reading bargraph meters can be selected to display 2 track return Groups 1 amp 2 and 3 amp 4 or the Mix when the appropriate control room selection is made If any input or Auxiliary master is soloed then the PFL AFL LED illuminates and the master meters show PFL AFL levels instead 100mm Master Faders Output levels are controlled by a 100mm long The Sub Group has an impedance balanced XLR output connector allowing long cable runs on stage Insert Points Pre fade insert points are provided on jack connectors for the connection of Limiters Graphic Equalisers or other signal processors Group Metering Selectable 12 segment peak reading bargraph meters Auxiliary Masters The level at each Auxiliary output XLRs 1 4 balanced jacks 5 6 on the rear panel is controlled by a rotary control with a button for AFL Routing The signal on the sub group fader can be routed to the L R mix and or mono summed 100mm Group Faders The Group faders provide 10dB of extra gain above the zero mark whilst still ensuring smooth operation MASTER SECTION Connections L R Mix and a mono sum output appear on balanced XLR with jack insert points on the L R outputs Two control room outputs for engineer monitoring are available on impedance balanced 1 4 jacks 2TRK Inputs A pair of unbalanced 10dBv phono connectors labelled 2TRK In allow pre show music to be replayed An
29. qualiser section based on that used in the high end MH Series Both the HF and LF shelving sections have steeper slopes than usual which substantially reduces mid frequency harshness in the HF band and muddiness in the LF This increase in cleanliness of response is further enhanced by an element of undershoot and overshoot in the boost cut response It has two swept mid frequencies carefully selected for optimum control during live performances All bands provide 1508 of cut or boost The Low frequency equaliser response shelves at 80Hz The swept Lo Mid control operates between 80Hz and 1 9kHz The swept Hi Mid control Operates at frequencies between 550Hz and 13kHz The fixed High frequency equaliser response shelves at 13kHz EQ Switch The EQ section can be bypassed using the EQ switch allowing comparison of treated and untreated sounds without having to reset controls Auxiliary Sends The 6 Auxiliary sends are pre fade 1 amp 2 pre post selectable 3 amp 4 and post fade 5 amp 6 Level Control and Routing On the GB2R the signal can be routed to the Stereo Mix and the Sub Group 12 2 model only For GB2 the signal can be routed to the Stereo Mix and Groups 1 amp 2 and 3 amp 4 Pan Turning the pan control full left or right enables odd or even groups or the left or right Mix bus to be accessed individually Solo PFL Each channel can be soloed pre fader post EQ to check levels PFL status is indicated via a front p
30. r eeeeeee 2 x 250mW into 2000 Input amp Output MODEA EEEE o 2k0 Impedances Line Inputs and Stereo Returns 1012 Input channels Insert Return 5kQ with EQ in otherwise 3kC2 Mix Group Aux Matrix amp Direct outputs 150 Insert sends c s a 750 Recommended Headphone Impedance 100 60002 High pass filter Mono input 555 erinnern rox cacon 100Hz 18dB per octave EQ Mono input n 13kHz 15dB 2nd order shelving iL MM ouo 550Hz 13kHz 15dB Q 1 5 Lo Mid S LLLI 80Hz 1 9kHz 15dB 05 HsUuueee coo cet t t NT 80Hz 15dB 2nd order shelving EQ Stereo input A oum 13kHz 15dB 2nd order shelving iie A 2 5kHz 15dB 38 8 1 1111177 8 4501172 15dB 08 A LU 80Hz 15dB 2nd order shelving Metering Input channels GB4 GB8 Single tri colour 4 segment LED bargraph Outputs 684 T tri colour 12 segment LED bargraphs Outputs GB8 11 tri colour 12 segment LED bargraphs Meterpod with 3 VU meters L R C Outputs GB2 GB2R 2 tri coloured 12 segment LED bargraphs indicates monitor source level Power consumption AC mains supply internal PS
31. turn by pressing 2 TRK TO MIX This allows easy playing of pre show music at a single button press without having to make any alterations to the band s settings RA V Vietering Three 12 segment Peak reading bargraph meters display L R mix and C mono bus output levels when the appropriate control room selection is made If any input or Auxiliary master is soloed then the PFL AFL LED illuminates and the master meters show PFL AFL levels instead Matrix Assignment Any of the four Group masters Left Right and C mono buses can be routed to any of the four matrix outputs via individual rotary controls 100mm Master Faders Mix and C Mono Output levels are controlled by custom built 100mm long throw faders The Mix outputs may be routed to the C Mono bus should only a mono PA be required or an induction loop need to be fed PSU Indicators A red LED illuminates if the console is powered up showing the status of the 17v voltage rails Integral Power Supply The console is fitted with a high efficiency SMPS design Switched Mode Power Supply unit that makes for cooler operation and lighter weight The PSU is capable of accepting a wide range of AC input voltages without any internal or external switch changes An external DPS 3 power supply may be connected for redundancy operation MASTER SECTION HAVE THE SAMI PLUS THE FOLLOWING onesies 1 EN S Y Group Metering GB8 has 8 12 segme
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