XO1 User`s Manual - Funktion-One
Contents
1.2. SELECT A B i Ps 3 4 b e IMPORTANT Please note your code If the security code number is forgotten contact your local sales office XO I Operators Manual Page 27 System Sub Menu System Status Displays unit information including software version and temperature Curr Temp current temperature in degrees Celsius Maxl Temp maximum temperature this session M ax2 Temp maximum temperature ever reached LCD Contrast Adjusts the LCD contrast from 0 to 100 LED Brightness Adjusts the LED brightness from to 15 Temperature Alarm Sets a temperature warning between 20 and 80 C The default screen will flash ALARM Temp n C when the specified temperature is reached N B the warning does not affect the units performance in any respect W ake up Time Sets how the unit starts up with one of the following options 0 to 60 seconds Waits the specified time before unit wakes up Mute hold Turns on and holds all output mutes when turned on N B Wake up is a slow ramp in level for about 5 seconds Output M eters Selects whether the output meters are pre or post mute If the meters are set to read pre mute they will still Show the level even if the channel has been muted Filter Q or BW Selects whether Q or Bandwidth is displayed in the parametric screens Delay Time Distance Selects whether delay is displayed in milliseconds metres or feet Page 28 XO I Operators
3. Manual Interface Sub Menu Interface Setup If the interface is enabled the option will become available to select the baud rate This must be set to match that on the PC to be used for the program update Typically the set up would be as below R5939 Cable NOT Null Modem Cable Interface Sub menu es TLE ee ma sm na E am ESE mm m L Extern Mode On RS232 Baud 38400 Laptop or Desktop Running Loader Port COMI or COM2 Speed 38400 XO I Operators Manual Page 29 AES EBU Sub Menu Connection of AES EBU signals is via the existing rear panel XLR connectors With the AES EBU option fitted AES Receive and Diagnostic modes are provided Routing Options Selects the input source either analogue or digital and similarly the output source again either analogue or digital AES Diagnostics Reports validity flag clock speed and errors present in the incoming AES digital signal AES EBU Connections The AES EBU digital signal is a stereo data stream and so only one input XLR and three output XLRs are used for the digital interface The connections are as follows Input A Analogue Input at all times Input B Switchable between digital stereo input and analogue input Output Switchable between digital out for channels amp 2 and analogue out Output 2 Switchable between digital out for channels 3 amp 4 and analogue out 2 Output 3 Switchab
4. Menu Selection The following menu selections are available Xover Sub menu Load a Xover loads a pre defined crossover Design a Xover starts the set up wizard for designing a new crossover Store a Xover stores all output settings as a defined crossover Erase a Xover Mem erase an individual crossover memory Input Set up Sub menu Gang Inputs Allows ganging of inputs for stereo operation All PEQ s Flat Sets all input parametric sections back to default values Security Sub menu Locks the unit with a 4 digit code at one of many user definable levels DO NOT ENTER THIS MENU BEFORE HAVING THOROUGHLY UNDERSTOOD THE WAY THE LOCK OUT WORKS AS DESCRIBED ON PAGE 26 System Sub menu System Status displays unit info such as version amp internal temperature LCD Contrast adjusts the contrast of the LCD screen LED Brightness adjusts the brightness of all indicator LEDs Temperature Alarm sets a temperature warning threshold in C Wake up Time sets time take for unit to pass audio after power up Output Meters selects whether meters are monitoring pre or post mute Filter or BW selects display type for parametric filter screens Delay Time Distance select units to display delays in mS m ft Interface Sub menu Interface Setup enable disable interface and set baud rate AES EBU Sub menu Routing Options select various routing options AES Diagnostics shows compl
5. per output Freq Range HPF 10Hz 16kHz 1 36 octave steps Freq Range LPF 35Hz 22kHz 1 36 octave steps Responses Bessel Butterworth 12 18 24dB Oct Linkwitz Riley 24dB Oct Limiters Threshold 22dBu to 10dBu Attack time 0 3 to 90 milliseconds Release time 2 4 8 16 32 x Attack time Display 2x20 character backlit LCD Input meter 2 x 3 point Output meter 6 x 3 point Connectors Inputs 3 pin female XLR Outputs 3 pin male XLR External 9 pin DEE connector RS232 Power 3 pin IEC Power 60 to 250V I5 50 60Hz Consumption 20 watts Weight 3 5kg Net 4 8kg Shipping Size 1 75 IU x 19 x 11 8 44 x 482 x 300mm excluding connectors Optional Interfaces AES EBU Digital Input Output Due to continuing product improvement the above specifications are subject to change Page 36 XO I Operators Manual Warranty This product is warranted against defects in components and workmanship only for a period of one year from the date of shipment to the end user During the warranty period XTA will at its discretion either repair or replace products which prove to be defective provided that the product is returned shipping prepaid to an authorised XTA service facility Defects caused by unauthorised modifications misuse negligence act of God or accident or any use of this product that is not in accordance with the instructions provided by XTA are not covered by this warranty This
6. 11 Introduction ll 2 x 2 way with Mono Sum ll 2 x 3 way 12 4 way 2 13 5 way 14 6 15 Screen Layouts Overview 16 Gain Screen 17 Polarity Screen 18 Delay Screen 19 High and Low Pass Filter Screens 20 Parametric Equaliser Screen 21 Limiter Screen 22 Menu Selection 23 Input Setup Sub menu 24 Gang Inputs 24 X over Sub Menu 25 Load a Xover 25 Design a Xover 25 Store a Xover 25 Erase a Xover Mem 25 Security Sub Menu 26 User Specific 26 Xover Only 26 Xover Trim 26 Xover Trim Mute 26 Changes Only 26 Changes View 26 Changes Mutes 26 EVERYTHING 26 Entering the Password to Complete the Locking Operation 27 Page 2 XO I Operators Manual System Sub Menu 28 System Status 28 LCD Contrast 28 LED Brightness 28 Temperature Alarm 28 Wake up Time 28 Output Meters 28 Filter Q or BW 28 Delay Time Distance 28 Interface Sub Menu 29 Interface Setup 29 AES EBU Sub Menu 30 Routing Options 30 AES Diagnostics 30 AES EBU Connections 30 Operating Notes 3l Operating Level 3l Grounding 3l Crossover Filter Slopes 32 Time Alignment 32 Output Limiters 33 Setting Accurate Limiter Thresholds 34 Specifications 36 Warranty 37 Options and Accessories 37 Appendices 38 Appendix Limiter threshold in dB to Vrms lookup table 38 Appendix 2 Default X over settings and names for all formats 39 Appendix 3 Equalisation Curves 40 XO I Operators Manual Page 3 An example of this equipment has been tested and f
7. 80Hz 180Hz 1k31Hz 1k31Hz 8kHz 8kHz 22kHz 20 1Hz 22kHz LoSub Sub Low LoMid HiMid High O O 6 way 15Hz 80 3Hz 80 3Hz 149Hz 149Hz 1kHz 1kHz 4kHz 4kHz 10k1Hz 10k1Hz 22kHz Note All filters set to 24dB Linkwitz Riley XO I Operators Manual Page 39 Appendix 3 Equalisation Curves 1506 12dB 9dB 6d0B 3uB BB 2H 54 188 200 1k 2k 5k 18k 2 Bk a Hz Parametric Filter Gain Curves L SARNA j eaoNIYN N LL 2H 54 188 200 546 1k 2k 5k 18k 2 Bk Frequency Hz Parametric Filter Q Curves eT ees T e M j Z T T K H LLLI a T 15 B 188 206 1k 2k 5k 10k 2 Bk Hz Parametric Filter High and Low Shelving Responses Page 40 DXO Operators Manual 2H 54 100 200 568 1k 2k 5k 18k 2 Frequency Hz Parametric Filter High Q Notch Filter Response a Bessel 12dB 50Hz b Butterworth 12dB 50Hz c Bessel 24dB 200Hz d Butterworth 2406 200Hz e Linkwitz Riley 2406 500Hz 2H 54 100 200 568 1k 2k 5k 18k 2 Frequency Hz High Pass Filter Response Curves a Linkwitz Riley 2406 1kHz b Butterworth 2406 2kHz C Bessel 2406 2kHz d Butterworth 12dB 5kHz e Bessel 12 dB 5kHz SSN N SIT A PASTA L 2H 54 188 200 500 1k 2k 5k 18k 2 Bk Frequency Hz Low Pass Filter Response Curves XO I Operators Manual Page 4
8. 84 SMUSW aqua 01 431 5848 l L L L L L L L 2 G26 s C ano G monitoring point pre or post mute E Y m i2 Notes The crossover and output settings are stored and S 5 o recalled independently using store recall a X Over m from the input settings using store recall input memory The output meters show level in dB from the limiter threshold The input meters show level in dB from input clip The high and low pass filters are defined independently on each channel To access the limiter attack and release parameters select Auto Limiter TC No when designing a crossover To swap parametric filter units between bandwidth BW and Q enter the System sub menu select Filter Q or BW and select required readout units L3 ALN dL o cun G dg t 139 35 3nieJap 01 1 9 0101958 55814 O pappa uogaas Se Mala ssald 139 98 web Jauueyo 55 22 0 SSaId o Qm 5 HT I ann D PE san D Z gin O YZ ana OF PE sin Le y I epe coe sae a o an pinu SAULT JS 041 Jasa ors Saja nding XO I Operators Manual Page Contents Quick Reference The Menus and their Contents Notes Contents 2 Important Safety Information 4 Thanks 5 Unpacking the XO 5 Introduction 6 Features 6 Front Panel Familiarisation 8 Rear Panel Connections 9 Operating the XO 10 Preliminary Set up 10 XO Configurations
9. DELAY GAIN dE i 3 me OUTPUT IE XO Operators Manual Page 3 5 way 1 This format feeds input A to outputs 2 3 4 and 5 designated sub low lo mid hi mid and high respectively Output 6 is configured as an auxiliary with the source being either input B or the sum or inputs A and B E eod s 1H DRITA m Page 14 XO I Operators Manual ME a Ma Js 2 8 Js 2 8 J E Ji 5 J se Ala se Ni se TVS se Ni se amp ELECT OUTPUT 3 HN CUT DIGITAL E SELECT OUTPUT 4 DIO TAL ANALOGIE p SELECT OUTPUT 5 Ar DIGITAL AMALOGUE OUTPUT 6 Cur DIGITAL This format feeds input A to all outputs designated lo sub through high to 6 respectively e Ely e Qe OUTPUT amp HIGH MUTE EN Es ie le JU DIGITAL Page 5 Operators Manual Screen Layouts Overview Aover Sub Menu Diesian a over enr Store a over over Ce LS INPUT AN Input Section Screens Input E Lain Le NEXT meut Fi Erase a over Mex ari Delty Bose Delay 4 mS Input Setup Sub Menu CE MENLI NEXT EM TER MIN MENU gt input Setup Submenu INPUT SETUP M
10. FUNKTION ONE XO 1 USERS MANUAL FUNKTION ONE XO I Quick Reference Accessing channels Use channel s SELECT button First press accesses that channel s gain Second press accesses last viewed parameter Third press will drop back to the default screen To scroll through a channel s parameters use the BACK and NEXT keys N Ja nsso42 quan Accessing menus Press the MENU key then the BACK and NEXT keys to find the sub menu required and select using the ENTER key This applies to all levels of menu ENTER always confirms selections suondas r3 aujuejed uae A Li amp Jn d ula 0 Sd Ag SSalg sniaul SAJEAJIE ANIH PELSAS NAFA Cites H d 50007 JAG AM X Z 3 NO NOILAN MS EUS pue sjajauiEe Jed JauueLa ubinnau dais 1 3 pue MO wa m H The Menus and their Contents Input Setup Sub menu Used for ganging input gain and base delays X over Sub menu Used for storage and recall of crossovers including format output EQ output delay output gain and limiter settings Also used for design of new crossovers Security Sub menu Used for locking various features of the units using a four digit code System Sub menu Used to view the units status and select various global options such as parametric EQ Q or bandwidth units and output meter EA EA UNO ESEA HLH niii SL N L penpaAn ELIIS1LII SOUS iq BUI a a aus saga uu Indu suamajas ullum nue enia ul ysa o1 LIN 55
11. The following section describes how to set up the XOl s limiters to provide exceptional protection against driver overheating and cone over excursion Most speaker systems are given a power rating in Watts RMS This is the maximum continuous power that the system will handle and often appears very conservative In reality as music program is far from continuous in nature the peak power of the system is much higher up to ten times the continuous figure Any limiter which is to protect the driver from damage must be able to fulfil the following tasks Have an attack time which is calculated to allow transients through but keep the RMS level below the speaker manufacturers specification Have a release time which is sufficiently long to avoid the limiter itself modulating the program Be intelligent enough to adjust the envelope of the limiter according to the frequency content of the program material The XOI s limiters are capable of performing all these tasks The only parameter which the user must set manually is the threshold and it is crucial that this is done correctly Consider the table below dB Ratio Vrms Pwr8Q Pwr4Q Pwr2Q Using this table it is a straightforward procedure to work out the required setting of the limiter thresholds for the system Follow the steps described overleaf Page 34 Operators Manual First check the RMS power rating of the speaker system and its impedance Look up this value in the t
12. U ENTER Gain 0 1dB LJ LJ BYPASS QUIT LOUDSPEAKER MANAGEMENT SYSTEM LJ LJ To adjust the gain FREQ Q GAIN O O O xo GAIN Use the GAIN control Each input and output has an individual gain screen The inputs have a range of 6dB to 40dB adjustable in O dB steps and the outputs have a range of 15dB to 40dB again adjustable in O dB steps ye For further details on this topic see the section entitled Operating Level on page 31 XO I Operators Manual Page 17 Polarity Screen FUNKTION ONE OO OP1 4 Low MENU ENTER nad JL Polority BYPASS QUIT LOUDSPEAKER MANAGEMENT SYSTEM L JL To adjust the polarity FREQ GAIN xoi ar n Use the GAIN control to switch between and Each output has an independent polarity screen This gives the flexibility to reverse flip by 180 the phase of individual outputs Note When the outputs are ganged the polarity screens remain individual Page 18 XO I Operators Manual Delay Screen FUNKTION ONE C1 OP1 4 Low MENU ENTER Delay 350 00mS JL LOUDSPEAKER MANAGEMENT SYSTEM To adjust delay settings FREQ Q GAIN Use the FREQ control for coarse control mS steps Use the Q control for fine control 2 615 steps Each input and output has an independent delay time control Input delay base delay is adjustable in mS steps Output delay is adjustable in 2 6uS steps or in mS ste
13. able above using the closest value below the rated power of the speaker system Note the corresponding dB value Check the gain of your amplifier which needs to be in dB Subtract this gain figure from the dB value obtained from the table to find the required absolute setting for the limiter thresholds Note that for safety always set the limiter threshold or 2 dB below the maximum allowable worked out using the above method ALWAYS REFER TO YOUR SPEAKER MANUFACTURER FOR LIMITER SETTINGS XO I Operators Manual Page 35 Specifications Inputs 2 electronically balanced Impedance gt 10k ohms CMRR gt 65dB 50Hz 10kHz Outputs 6 electronically balanced 9 Source Imp lt 60ohms Min Load 6000hm Max Level 20dBm into 600 ohm Frequency Resp 20Hz 20kHz Dyn Range gt 104 20Hz 20k unwtd Distortion lt 0296 9 Il kHz 184 Maximum Delay 650 mS Min Step Size 2 6 uS Input Gain 6dB to 40dB in 0 1dB steps Output Gain I5dB to 40dB in 0 1dB steps and mute Parametric Equalisation 5 Sections per Output Filter Gain 1 5 to 30dB in 0 1dB steps Freq Range 20Hz 20kHz 1 36 octave steps 368 positions Filter Q BW 0 4 to 128 2 5 to 0 008 Sections switched to shelving response Low frequency 20Hz kHz High frequency kHz 20kHz Shelf gains 15dB in 0 1dB steps Options Transformers available High and Lowpass Filters Filters of each
14. d outputs It has been designed for quick intuitive adjustment through the use of multiple controls to provide an easy to use interface Features Superb audio quality carefully optimised double precision signal processing coupled with a 40 bit internal data path ensures a dynamic range in excess of lOdB The high sampling rate means minimal filtering providing exceptional sonic purity A flexible 2 input 6 output multi mode format caters for any crossover configuration regardless of scale A total of 30 parametric equalisation bands are available each providing 15 to 3OdB of gain at centre frequencies between 20Hz and 20kHz with a wide range of Q s available between 0 4 to 128 All parameters feature fine resolution with 1 36 octave frequency steps 0 1dB gain increments and 100 Q settings Any parametric section can also be set to operate as a high or low shelving filter Each output features a high performance limiter provided with complete control over attack release and threshold parameters To aid set up the output meters show headroom to the limiter threshold and use time constants that track those of the limiter to display precise power usage Page 6 XO I Operators Manual Each output features variable high and low pass filters with a choice of 12 18 or 24dB Octave roll off and Butterworth Bessel or Linkwitz Riley responses Independent control of each high and low pass filter allows asymmetric crossove
15. enu meut Options Input Cia Sms Sano tex J O O LOUDALPR MAMADA SYR RN ZEE OUTPUT E MENLLNEXTx4 GAl ENTER Output Section Screens 1 4 Low Gein Dain exp EA LEA NEXT OPl 4 Low Faluttu lt L 1 a OPl 4 Low Delay AS 1 4 Lou HERE ISEH Lnk Pil OF1 4 Liu LEE BESH Lnk Ril Z4dBs 1 4 Lou PEQ 1 KAGH 34 Geo PEQ s T 2 to 4 DPA Low S e IKBOHZ 24 BAd OPle4 Low Leiter Ptas RXSZ ZEB Interface Sub Menu MAIN MENU gt Interface E ali liexul ER Y ENTER INTERFACE Menu intertuace Setup CS MEM LENE X Tx5 EMTER AES EBU Sub Menu AES EBU Meri gt ARS Carers Security Sub IMenu MAIN MENL EC UE E S eU SUD Mena SECURITY Mena Linit Lock FIM MENLE LL etam eu Menu CER ENTER SYSTEM Mente ET eT eLtctus O SVETEM Mente LED SISTE Menu gt LED Brisntiess SYSTEM Menu gt Tenperature mln SYSTEM Meru b Output Meters SYSTEM MEE oo gt Q or ME SYSTEM Merwe gt Dewy 16 I Operators Manual Audio Function Screens Gain Screen FUNKTION ONE O G OP 1 LA Low MEN
16. ete status of AES signal Only available if the AES EBU option is fitted XO I Operators Manual Page 23 Input Setup Sub menu There is one option in this menu Gang Inputs Gangs A and B inputs so that precise adjustments can be made to both inputs simultaneously the LCD will show A B All adjustments are now absolute and any adjusted parameters on both channels will become identical If it is necessary to introduce an off set on any parameter un gang the inputs and adjust If re ganged channel B will jump to channel A s setting Page 24 XO I Operators Manual X over Sub Menu Load a Xover Loads a stored crossover from the selection available Enter accepts the selected name and loads immediately Design a Xover Opens a wizard to design a crossover Options include format type ganging of outputs routing and automatic limiter time constants The table below outlines which options are available dependant on what type of crossover is chosen for the design 2 x 2 Way 2 x 3 Way 4 Way 5 Way 6 Out 5 Source A A B Out 6 6 Out Outputs Yes N Outputs Yes N Source A A B Source A A B O O Auto Limit Auto Limit Auto Limit Auto Limit Auto Limit TC Yes No TC Yes No TC Yes No TC Yes No TC Yes No Store a Xover Stores a X over all output settings to one of 9 locations Crossovers can be named using the same method as memories with up to 16 characters which appear in the default screen on the top line
17. gain of the filter to OdB and then turn the Q control anti clockwise until HiSHF or LoSHF is displayed Now set the frequency and gain as required To set the filter back to a parametric section just ensure that the gain is at OdB otherwise the Q control will have no effect XO I Operators Manual Page 21 Limiter Screen FUNKTION ONE 25 25 OP2 5 Mid Limiter Atk 4 OmS Rx16 22dB LOUDSPEAKER MANAGEMENT SYSTEM O CJ BYPASS QUIT To adjust limiter settings lt BACK NEXT gt FREQ Q GAIN 2 4 4 ATTACK RELEASE THRESH Use the FREQ control to adjust the attack time Use the Q control for the release time Use the GAIN control for the limiter threshold Each output has an independent high performance limiter All limiters have an attack range of 0 3mS to 90mS release times 2 4 8 16 and 32 times the attack time and thresholds range from 22dB to 10dB in IdB steps If the automatic limiter time constant option is in use all limiter screens will say automatic and the time constants will be set from the high pass filter frequency A table of dB to Vrms in case the amplifier sensitivity is given in Volts rather than dB is in appendix l The output meters are linked to the time constants of the limiters so true output metering is achieved For further details on this topic see the section entitled Output Limiters on page 33 Page 22 XO I Operators Manual
18. k you for choosing the XO I for your application Please spend a little time reading through this manual so that you obtain the best possible performance from the unit All our products are carefully designed and engineered for cutting edge performance and world class reliability If you would like further information about this or any other product please contact us We look forward to hearing from you in the near future FUNKTION ONE Unpacking the XO After unpacking the unit please check it carefully for any damage If any is found immediately notify the carrier concerned you the consignee must instigate any claim Please retain all packaging in case of future re shipment XO I Operators Manual Page 5 Introduction The is a powerful DSP based audio processor ideally suited for live sound applications where it combines the functions of a multitude of conventional products in a compact unit To achieve this the XO has two inputs and six outputs which can be configured in five basic crossover modes 3 x 2 way 2 x 3 way 4 way 5 way and 6 way Each input has a gain control and variable base delay Each output has a gain control variable delay high and low pass filters five bands of fully parametric equalisation polarity switching and additionally a fully featured limiter Multi part security lock out is available for all controls The is also available with optional AES EBU digital inputs an
19. l ground OV is in turn connected to the chassis ground To avoid ground loops cable shields should be connected to ground at one end only The normal convention is that the shield is only connected at the output XLR Provision is also made for separately isolating each input and output shield pin permanently within the XO breaking the appropriate PCB track where marked with a box and an arrow next to each XLR connector using a small drill bit or cutter See the following diagram for details mug jn 3 EUMD LU X Tucci Ok ey en ier Iter rn EI Asi Win rA 8 Li coca XLR pin Isolation points arrowed and 0dB pads circled XO Operators Manual Page 3l Crossover Filter Slopes Please consult the block diagrams page 11 for details of the various configurations available All crossover modes feature adjustable crossover frequencies with a choice of slopes 5 bands of driver compensation E Q per output and delay time plus limiters for each output A powerful 8 band parametric equaliser is also provided on each input for room equalisation Phase reverse is provided for each output A choice of Bessel or Butterworth slopes at 12 18 24dB per octave and Linkwitz Riley at 24dB per octave are provided Since Low and High pass functions are separately adjusted asymmetric slopes are easily achieved if required It should also be noted that the turnover frequency displayed on the XO I is the 3dB point fo
20. lable on each input Note that if no action is taken in menu mode the unit will return to normal default mode after about twenty 20 seconds Repeat the above directions to return to menu mode Page 10 XO I Operators Manual XO I Configurations Introduction To simplify the set up of the XO 5 crossover modes are selectable from the X over sub menu These all have parametric equalisers high and low pass filters gain controls delay and limiters The following set of diagrams detail how each of the five modes is internally configured Note that the 2 x 3 way and 3 x 2 way modes also offer the option of ganged parameter adjustment for stereo systems LPF 5 DELAY GAIN GAIN LIMIT Al a SELECT 7 OUTPUT 3 LOW Nr DIGITAL x LIMIT ium x gt Al t4 Ld ourrut 4 Dr DIGITAL e IE HORNO SUB s W La n OUTPUT 6 AUXILIARY HE 777 2 x 2 way with M ono Sum This format feeds input A to outputs and 2 designated low and high respectively Input B feeds outputs 3 and 4 low and high respectively Outputs 5 and 6 are both fed from the sum of inputs A and B Output 6 is a full bandwidth output by default with output 5 being bandwidth limited as a sub output XO I Operators Manual Page 2 X 3 way This format feeds input to outputs 1 2 and 3 designated low mid and high respectively Input B feed
21. le between digital out for channels 5 amp 6 and analogue out 3 Output 4 Analogue output 4 only Output 5 Analogue output 5 only Output 6 Analogue output 6 only Page 30 XO I Operators Manual Operating Notes Operating Level With any audio signal processing equipment it is necessary to ensure adequate signal level is used through the device to avoid sacrificing noise performance It is suggested that the operating level chosen should give adequate level to just light the 12dB LED on the headroom meter with maximum program level being used Since the meter is deliberately set to show clipping 3dB early this still provides 9dB of headroom before clipping occurs With equalisation in use it may be necessary to further reduce the input level as gain within the unit may cause digital clipping indicated by the top red LED s lighting independently of the rest of the meter It should be noted that the figure quoted for the maximum input level options is the clipping point for that option not a safe operating level Always ensure that this clipping point is no lower than that for the following equipment in the signal chain and allow extra margin if equalisation sections are boosted Grounding The Screen shield pins on all audio connectors are normally connected directly to the ground pin of the IEC mains inlet The chassis is also directly connected to this pin Never operate this unit without the mains safety ground connected Signa
22. ntigrade Fahrenheit 32 x 0 5555 Page 32 XO Operators Manual Output Limiters High performance digital limiters are provided for each output with control over attack time release time and threshold level parameters see page 22 for details This level of control allows the user to balance the required subjective quality of the limiter against the driver protection requirements It does also mean that an incorrectly set limiter may sound awful In particular as with all limiters using too fast an attack or release time will result in excessive low frequency distortion In the Design a Xover sub menu there is an option for automatic limiter time constants In this mode the time constants will be automatically set from the Highpass filter frequency according to the table below The time constants are set by the high pass filter frequency for that channel High Pass Filter Auto Attack Time Release Time lt 10Hz 31 Hz Am 16 720 5 31 Hz 63Hz x16 256mS 63Hz 125Hz x16 128mS 250Hz 500Hz x16 32mS 500Hz IkHz x16 16mS 2kHz 22kHz x16 4mS XO I Operators Manual Page 33 Setting Accurate Limiter Thresholds The limiters built into the are intended to be used for for loudspeaker driver protection as opposed to amplifier protection All modern professional power amplifiers designed for live sound use have their own limiters which are tailored to protecting the amplifier from clipping
23. of the display Erase a Xover Mem Permits clearing erasing of individual crossover memories from the unit Note that once erased the memory name disappears form the list of recallable locations If the crossover memory is currently in use it s name will remain on the default screen and the current settings will not be changed XO Operators Manual Page 25 Security Sub Menu After selecting the Security Sub Menu and pressing ENTER select one of the lock types after choosing the most appropriate one for your application As ever ENTER will confirm your selection User Specific Upon pressing ENTER to select this type of lock each parameter group is presented in turn Choose the type of lock as above using the FREQ encoder and press ENTER to confirm each parameter After the last parameter the unit requests a password The description of this operation is given at the end of this section This option allows the user to specify for each type of parameter whether it is to be completely accessible No Lock viewable but not adjustable Control or effectively unavailable Display The ability to operate mutes store or recall memories or even access the menus may also be locked Xover Only All input parameters are available but only the gain trim is available on the outputs effectively locking all the crossover settings All mutes remain active Xover Trim All input parameters available but no
24. ound to comply with C the following European and international Standards for Electromagnetic Compatibility and Electrical Safety Radiated Emissions EU EN55013 1 1996 RF Immunity EU 55103 2 1996 RF Immunity ESD Burst Transient Surge Dips amp Dwells Electrical Safety EU EN60065 1993 Important Safety Information Do not remove Covers No user serviceable parts inside refer servicing to qualified service personnel This equipment must be earthed CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN DO NOT EXPOSE TO RAIN OR MOISTURE ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS ENLEVER NE PAS EXPOSER A LA PLUIE NI A L HUMITE It should not be necessary to remove any protective earth or signal cable shield connections Do not defeat the 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 wider blade and the third prong are provided for your safety When the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Only use this equipment with an appropriate mains cord In the USA the cord should comply with the requirements contained in the Standard for Cord Sets and Power Supply Cords UL 817 be marked VW 1 and have an ampacity rating not less than the marked rating of the apparatus Page 4 XO I Operators Manual Thanks Than
25. output parameters the crossover sections are completely locked All mutes remain active Xover Trim Mute As for Xover Trim but additionally output mutes are locked Input mutes remain active Changes Only All parameters may be viewed but none may be adjusted This apples to both inputs and outputs All mutes remain active Changes View No parameters are accessible in effect the SELECT keys do nothing All mutes remain active Changes M utes All parameters may be viewed but none may be adjusted This apples to both inputs and outputs All mutes are also locked EVERYTHING No parameters are accessible in effect the SELECT and MUTE keys do nothing Page 26 XO Operators Manual Entering the Password to Complete the Locking Operation After selection of the lock type from the list above a four digit security code will be asked for This can be entered by using the FREQ control to select a character and the BACK and NEXT keys to move to the next character Alternatively the SELECT keys can be used to enter a code by pressing any combination of the eight buttons Each SELECT key represents its channel labelling so any combination of A B 2 3 4 5 and 6 can be used as a code as shown below A B y di ti F O O i O O O cur O O O a LM O LM O Gh O o ol mo mo 8 O Jj O MUTE O MUTE 24 s MUTE 24 MUTE 24 O MUTE 24 O MUTE
26. ps giving complete control over driver time alignment The combination of input base delay and output delay can be a maximum of 650mS So for example setting a base delay of 500mS on input A will only leave 150mS for any outputs that are sourced from input A The exception to this rule is for any aux outputs available in 4 and 5 way crossover modes Choosing the source as a mono sum Inputs A B will allow 650mS of output delay regardless of the input delay settings NE For further details on this topic see the section entitled Time Alignment on page 32 XO I Operators Manual Page 19 High and Low Pass Filter Screens FUNKTION ONE O OP1 4 4 Low HPF UN MENU ENTER 40Hz Bessel 24dB L L LOUDSPEAKER MANAGEMENT SYSTEM To adjust HPF LPF settings FREQ Q GAIN FREQ SLOPE Use the FREQ control for the frequency Use the Q control for the slope Each output has an independent high pass filter and an independent low pass filter Both filters have a range of selectable slopes which are Bessel 2dB 18dB and 24dB Butterworth 2dB 18dB and 24dB and Linkwitz Riley 24dB Highpass filters have a range of lt IOHz through to 6kHz Lowpass filters have a range of 22kHz through to 39Hz in 1 36 octave steps HPFs and LPFs can be set asymmetrically For further details on this topic see the section entitled Crossover Filter Slopes on page 32 Page 20 XO I Operators Manual Paramet
27. r bands to be created Delay of up to 650mS may be independently set for each output with an exceptionally fine minimum increment of 2 615 Three velocity sensitive encoders provide a familiar and intuitive control format with all filter information displayed simultaneously on a backlit LCD screen AES EBU Digital input and output interfaces are available as an option Input and output balancing transformers are also available as an option XO I Operators Manual Page 7 Front Panel Familiarisation EJ FUNKTION ONE LCD Screen shows menu options OP1 4 Low PEQ 1 channel information and various 1KOOHz B 34 0 0dB parameters as they are adjusted LOUDSPEAKER MANAGEMENT SYSTEM wx Next Key moves forwards through the list of available parameters WE ENTER Back Key moves back through the list of available parameters Menu Key activates the main menu A second press selects the last menu edited Selection of different menus may be accomplished using the Back and Next keys or by turning the Freq encoder Enter Key enters the chosen menu and confirms choices Bypass Key bypasses the currently selected parametric EQ section Note that for safety reasons the high and low pass filters cannot be bypassed using this key Quit Key exits the menu BYPASS QUIT UA Encoders three velocity sensitive controls allow the relative parameter displayed on the LCD screen to be adjusted Q Q O PC Card PCMCIA ca
28. r all slopes except 24dB Linkwitz Riley where the 6dB point is shown If the 6dB point is to be used for the Bessel or Butterworth filter take the required crossover frequency multiply this by the appropriate factor from the following table and then select the closest available frequency on the XO l s display Filter Type High pass factors Low pass factors Bessel 12dB Oct 145 069 Butterworth 2dB Oct Butterworth 18dB Oct 1 19 084 Please note that unlike conventional analogue crossovers crossover points and slopes are set with absolute accuracy since component tolerance problems do not occur Time Alignment A further advantage of the over conventional products is the provision of an independently adjustable delay section for each output This allows the true arrival time from multiple drivers to precisely aligned rather than relying on the compromise phase adjust approach Delay time is adjustable in 2 615 steps mm Please see page 19 for details of how to adjust the delay times To convert from units of time i e milliseconds to units of distance use the following formula millisecond 343mm 1 126ft 20 C 68 F To calculate time delay for a known distance use Time delay Distance in meters 20 06 x V273 C where C is the temperature in C To simplify this equation at 20 C Delay time in milliseconds Distance in meters x 2 192 or Distance in feet x 0 955 Note Ce
29. rd slot allows back up of input memory XO1 sets unit cloning data and facilitates the download of software updates SELECT Keys one for each input and output allowing instant O cur O access to the gain screen for the selected channel accompanying LED illuminates whilst editing is active O sesr Input Meters display available headroom below clipping The LL yellow 6dB LED illuminates at 6dB below the actual clipping point of the input section The red Clip LED shows digital overflow and can therefore illuminate independently of the rest of the meter O Output Meters display headroom below limiting The yellow LED illuminates 3dB below limiting for that channel The red LED indicates the onset of limiting Mute Keys mutes the appropriate channel and illuminates the associated LED Page 8 XO I Operators Manual Rear Panel Connections pe e 3 gt 255 Rr Q z zo 2 DC NOT EXPOSE TO RAIN OR MOSTRE EXTERNAL QOOQUQJ NO O OOO CAUTION FOR CONTINUED PROTECTION AGAINST FIRE REPLACE DM Y WITH SAME TIA 250 FUSE XLR PIN OUTPUT amp OUTPUT 5 PI SHELO P2 HOT T O P3aCOLD L Pina M A TUN N i NN f f A E l oJ o Pe V N C N C Fi 7 N C Af m AO CALMO SHOCK HAZARD DO NOT REMOVE OVERS Power Switch on Mains Fuse located in a finger proof holder adjacent to the mains inlet A spare fuse i
30. ric Equaliser Screen FUNKTION ONE OO OP1 4 Low PEQ 1 lt gt MENU ENTER 1KOO0Hz B 34 0 0dB um LOUDSPEAKER MANAGEMENT SYSTEM LJ LJ To adjust parametric settings lt BACK NEXT gt FREQ Q GAIN ODO O O t T BYPASS QUIT CJ CH Use the FREQ control for the frequency Use the Q control for the Q Use the GAIN control for the gain Each parametric section can be positioned at a frequency from 20Hz to 20kHz and features a wide range of Q s to produce response curves ranging from broad to notch The gain control ranges from 1 5 to 30dB in 0 1dB steps Frequency steps are 1 36 octave resolution for precise control Since all filtering is achieved in DSP all settings are re settable with absolute accuracy and in ganged mode parameters track identically Very narrow band notch filters maximum Q of 128 can be achieved and unlike analogue filters these tight Q filters are entirely stable The maximum notch depth is 30dB Parametric filters are carefully implemented using Double Precision processing This method is costly in terms of processing power but yields substantial benefits in terms of the XOI s exceptional noise performance and greatly improved low frequency stability Note To show parametric filters in bandwidth BW rather than Q go into the System sub menu select filter Q or BW select BW To switch a filter from parametric mode to shelving mode set the
31. s also located in this holder Mains Inlet connected via a standard IEC socket turns the units mains supply off and External RS232 standard via a 9 pin D type connector for connection to a PC enabling the uploading of new software to the unit Audio In Out 3 pin XLR sockets are provided for each channel All are fully balanced pin 2 hot 3 cold screen Always replace the fuse with the correct type and rating as shown on the rear panel legend XO I Operators Manual Page 9 Operating the XOI Preliminary Set up The procedure below should be followed when first installing a XO Design your crossover To do this press MENU and use the BACK or NEXT key to select X over sub menu and then press ENTER Use the BACK or NEXT key to select Design a X over and then press ENTER Finally use the BACK or NEXT key to select the desired configuration and follow the set up wizard to finalise your design Note that when in a menu ENTER is always used to confirm selections The current selection is marked with an asterisk Use the SELECT keys on each output channel with the BACK and NEXT keys to select the high pass filters low pass filters parametrics etc Note that when designing a new crossover the high and low pass filters will be set to default values See appendix 2 for more information Use the SELECT keys on each input channel with the BACK and NEXT keys to select the gain delay and parametrics avai
32. s outputs 4 5 and 6 as low mid and high respectively Note that this configuration as with the 2 x 2 way can have the outputs ganged for stereo operation This gangs outputs amp 4 2 amp 5 and 3 amp 6 so that they track identically It can be selected or modified by entering the Design a Xover function again ANALOGUE ANALOGUE gt GAM MAIN DELAY HFF FEQ x 5 DELAY 8 INPUT J 4 s OUTPUT 1 mer H H p DIGITAL EE ee k DIGITAL AHAL CUE GAIM s UTE gt S w R a a y a W a spa wawa r UH lt DIGITAL ANALOGUE HPF LFF FEQ 5 DELAY GAIN LIMIT MUTE RC qe gt A E DIGITAL e ANALOGUE AHALOGUE gt HAIN DELAY Her inr FEQx5 DELAY GAIN LIMIT MUTE INPUT smeet OUTPUT 4 tH HIE DIGITAL DIGITAL ANALOGUE HPF LFF PEQx5 DELAY GAIN E f AL lt Torio T o DIGITAL AMALOGUE HPF LPF FEQx5 DELA GAIM MUTE gt OUTPUT LN Sas HIGH dE 7j Page 12 XO I Operators Manual 4 way 2 This format feeds input A to outputs l 2 3 and 4 designated low lo mid hi mid and high respectively Outputs 5 and 6 are configured as auxiliaries with their source being either input B or the sum or inputs A and B S Fi e Y S1 L i RIE E ZI KS MINE ANALOGUE SELECT OUTPUT 5 Lor MONO SUB DIGITAL BIE Js el 69 8 Yi ANALOGUE x5
33. warranty is exclusive and no other warranty is expressed or implied XTA is not liable for consequential damages FUNKTION ONE Options and Accessories Part Description Transformer balanced inputs factory fitted only Transformer balanced outputs factory fitted only AES EBU Digital inputs outputs factory fitted only 9 pin D type to 9 pin D type cable Im XO I Operators Manual Page 37 Appendices Appendix 1 Limiter threshold in dB to Vrms lookup table dB Vrms dB Vrms rm em 45 130 a ra ms e us 19 em 2 os rus es 1 ear 7 fa 9 em rue e 4 ear 1 que 3 os cmm e ee 12 qwe ps pa H qus De ox ru pe y em ques os cs us 9 ear cr um ex mel Calculation Vrms 0 7746 x 10 dBu 20 Page 38 DXO Operators Manual Appendix 2 Default X over settings and names for all formats X over Output Output2 Output3 Output 4 Output5 Output 6 2x2 way Ms Low High Lo High Msub Au 120Hz 1k82Hz 1k82Hz 22kHz 120Hz 1k82Hz 1k82Hz 22kHz 24 8Hz 120Hz 10Hz 22kHz 2 x 3 way Low Mid High Low High X 22 1Hz 120Hz 120Hz 1k82Hz 1k82Hz 22kHz 22 1Hz 120Hz 120Hz 1k82Hz 1k82Hz 22kHz Mid way 2 Low LoMid HiMid High Aux Aux 15Hz 149Hz 149Hz 1k31Hz 1k31Hz 8kHz 8kHz 22kHz 20 1Hz 22kHz 20 1Hz 22kHz 5 way 1 Sub Low LoMid HiMid High Aux 15Hz 80 3Hz 80 3Hz 1
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