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1. uonoes 3se M IA UID D sseJd suonoe es ulJljuo pue O 5 NERIS Snuoul So3 AD2 f1N3IA ure8 ouueu SSedde SseJd LNdLNO E H3IN3 NN3W 4 Series Operators Manual KIOWA SCT UOREJNSIJUOT 3u9J4n7 Snueul 9 NOEMI PUUEUD usno4u dais J X3N pu gt A 79 11 U oO D e gt ect 0 zm e O 176 moys Re gpp SMOYS 7 Page 3 Contents Important Safety Information 6 Thanks 1 Unpacking the unit 1 Introduction 8 Features 8 Front Panel Familiarisation 9 Rear Panel Connections 10 Operating the 4 Series 11 Note about operation with AudioCore software Start up procedure Preliminary Set up Input Channel Makeup 12 Output Channel Makeup 12 Preset Routing Configurations DP448 shown 12 Free Assign Routing 5 Input Gain 6 Base Delay 6 Input Graphic EQ 6 Input Parametric EQ 6 Output Gain 7 Output Polarity 7 Output Delay 7 Output High Pass Filter 18 Output Low Pass Filter 18 Output Parametric EQ 8 Output Limiter 9 Output Clip Limiter 19 Input Ganging and Output Ganging 20 Menu System Overview
2. AUDIO SETS Editing Audio Parameters Input Channels Input Gain The range of the control over the input gain is 40dB to 6dB 0 dB steps meut Guam Input Duain Gain Base Delay The maximum available delay between any input and output is 650 00mS For example if the input delay on channel A is set to 500mS the maximum available output delay for any output fed from input A will 1505 The readout units can be changed between time in milliseconds distance in feet or distance in metres Please see page 23 for more details pos Input H 4 ase Delay idw x ImS x lOuS 343mm 4mm Input Graphic EQ The graphic equaliser has 28 third octave bands from 31Hz to 6kHz and a gain range of 2345 The 11 on the second line of the screen denotes the behaviour of the graphic this setting behaves like GQ600 with variable Q that is gentler at low cut boost values and sharpens at high cut boost values The alternate setting F is a constant Q behaviour where no change in bandwidth occurs with differing cut boost Pressing BYPASS will bypass the entire Graphic EQ on this channel For details of how to select the behaviour please see page 23 HA Input A Gr apho LILIE QU Gain Input Parametric EQ There are eight bands of parameter equalisation available on every input The
3. Phase Filter 4 Series Operators Manual HFFiz InH Input E Hipazz IkBOHz Q 3E Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The allpass filter has adjustable frequency and Q or Bandwidth controls These affect the frequency at which the phase effectively flips 180 and the speed at which this transition occurs The graph shows an allpass filter centred at kHz with various Q settings the higher the Q the faster the transition mrut A FHzlz 1 lee Phase Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The phase filter has adjustable frequency and phase shift controls This introduces a phase shift that gradually changes from 180 above the centre frequency to the specificed value at the centre frequency and tending towards 0 below the centre frequency This graph shows the phase shift relative to the input ignoring processing delays 10 steps the filter will actually provide higher resolution than this operating in 2 steps The filter is centred at kHz in this example Page 47 Low High Pass Variable Q Filter Low Pass shown Inh Input M LERTIS C258 LEF
4. FULL RANGE OUTPUT 0142 32kHz CH CH i CH CH m d d d d d n 1 3 3 3 9 3 S 3 01 Page 14 2 oe 4 Series Operator s Manual Free Assign Routing If none of the preset configurations are appropriate to the required system setup it is possible to manually select the routing of the crossover This is achieved through the Lrozznuer Meru gt Liezign A Crossover Pressing ENTER will start the crossover design wizard with the first option being to choose the routing The display will show Design A Crossover gt Z AT or whatever the current configuration is set to Press BACK until the display shows Hesian Draozzouspr gt And then press ENTER The EDIT key will illuminate for output as will any relevant input EDIT keys showing which inputs are feeding output The display will also detail the current combination of inputs feeding this output To change the routing for any output press its DIT key and then choose the required input channel combination by just pressing the input DIT keys as appropriate The input combinations can also be stepped through in turn by pressing NEXT or BACK To complete the procedure press ENTER The wizard will continue and if the routing has been changed all outputs will be muted on exit 4 Series Operators Manual m 15
5. Ox 01 OF Os Of 01 D Max Clip Limiter The main limitation with traditional dynamics control is the inability of the processing to react truly instantaneously to the signal One of the most significant advantages of digital signal processing over analogue is the ability to delay the audio signal precisely and without extensive complex hardware The entire domain of digital signal processing is based around the combination of delaying multiplying and accumulating numbers representing samples of audio to implement all the filters and dynamics processing we have come to expect today In the case of dynamics processing being able to delay a signal allows the processor module to delay the main signal in relation to the sidechain the signal being monitored relative to the threshold so that it can compensate for peaks prior to the arrival of the main signal Consider the situation of a monitor engineer listening to a band perform Having no access to dynamics processors he has had to resort to manually riding the faders in an attempt to keep control of the levels Should the level of one of the channels on his desk reach an unacceptably high level he will curn it down appropriately Audio Input Signal being monitored Gain Control Element x Output to U Amp Speaker System AN U forming Sidechain Control Signal In this case the
6. Specifications Inputs 2 4 electronically balanced Impedance gt lOk ohms CMRR gt 65dB 50Hz lOkHz Outputs 4 6 8 electronically balanced Source Imp 60ohms Min Load 600 Max Level 20dBm into 600 ohm Frequency Resp 20Hz 20kHz 3dB 32kHz Dyn Range gt l6dB 20Hz 20k unwtd Distortion lt 0296 9 kHz l8dBm Maximum Delay 650 mS Min Step Size 0 3 115 Input Gain 6dB to 40dB in 0 dB steps Output Gain 5dB to 40dB in O dB steps and mute Parametric Equalisation 8 per Input 9 Sections per Output Filter Gain I5dB to 30dB in 0 dB steps Freq Range 19 7 2 32kHz 1 36 octave steps Filter Q BW 0 4 to 128 2 5 to 0 008 Sections switched to shelving response Low frequency 19 2Hz IkHz High frequency IkHz 32kHz Shelf gains 1 5dB in 0 dB steps High and Lowpass Filters Filters of each per output Freq Range HPF 2 l6kHz 1 36 octave steps Freq Range LPF 35Hz 22kHz 1 36 octave steps Responses 1 Order 6dB Oct Bessel Butterworth Linkwitz Riley 2 24 48dB Oct Bessel Butterworth 8dB Oct Limiters Program Limiter Threshold 22dBu to lOdBu Attack time 0 3 to 90 milliseconds Release time 2 4 8 16 32 x Attack time D Max Limiter Attack Time 60uS Release Time Slow Medium Fast Display 2 x 24 Character LCD Input meter 2 x 6 point 24dB to digital clip Output meter 8 x 6 point 24dB
7. Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The low and high pass variable Q filters have adjustable frequency and Q or Bandwidth controls The Q control adjust the damping of the filter so that low Q settings show less overshoot at the turnover frequency but also slower roll off Remember that Q is Bandwidth so the higher the Q the lower the Bandwidth and the smaller the range of frequencies affected The filter is primarily 2dB Octave but in achieving this sort of roll off with a high O value will result in quite a large overshoot in level at the turnover frequency This type of filter is often also called a resonant filter Page 48 4 Series Operator s Manual Elliptical filters MA jesc 9 0 0 884 A mA input A HPF BERI 1 1 Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The elliptical filter has adjustable frequency only This sets the 3dB point of the filter which features a steep roll off of approx 36dB Octave down to one Octave above or below in the case RAM of a HPF the turnover frequency However the gain does increase again above this frequency to settle at 2dB down from OdBr This filter can be used in conjunction
8. DIGITAL Preset Routing Configurations DP448 shown In addition to the ability to assign any combination of inputs to any output a number of preset configurations are provided for use when designing a crossover from scratch These have the advantage of suggested settings for the high and low pass filters to useful basic starting points to filter the different outputs as appropriate for the chosen configuration These may of course be freely modified afterwards should they not suit the requirements exactly The diagrams on the following pages show the connections made between inputs and outputs and the suggested values chosen for the high and low pass filters Page 12 4 Series Operator s Manual 01 04 OF 05 01 01 4 x 2 way crossover As shown each input feeds a pair of outputs odd numbers being the low frequency split and even numbers being the high part of the spectrum Default suggested crossover frequencies are shown by each output LOW OUTPUT 4O IHz 1 62kHz HIGH OUTPUT l eekHz 22 2kHz LOW OUTPUT 4O IHz 162kHz HIGH OUTPUT I 62kHz 22k Hz LOW OUTPUT 40 1Hz 162kHz HIGH OUTPUT I 62kHz 22 2kHz LOW OUTPUT 4O IHz 62kHz HIGH OUTPUT I 62kHz 22 2kHz 2 x 3 way crossover Inputs A and B feed three outputs each with output 7 being fed from input C and output 8 from input D Note the Aux outputs are set to
9. Creating a Flat topped EQ Response M Cle LECIE Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The shelving EQ has adjustable frequency or Bandwidth and Gain controls These affect a range of frequencies from the turnover freqency as shown in the graph For a high shelf frequencies above the turnover frequency will be affected For a low shelf frequencies below the turnover frequency will be affected Various levels of cut and boost are shown to the left along with various Q settings gain boosts only are show below 1 20000 00 create flat topped EQ filter response such as that shown to the left use two EQ bands BOTH configured as low shelves For an overall BOOST set the Lower frequency filter to BOOST the desired amount and the Upper frequency filter to CUT by the same amount This example shows one filter at OOHz and the other at 2kHz with the IO0Hz filter at OdB and the 2kHz filter at 045 Varying the Q affects the slope of the response values above 0 75 will cause overshoot as shown Assymetrical responses may be achieved by adjusting the Q of each filter independantly 4 Series Operators Manual Page 45 Bandpass Filter mA Input BRL LES
10. Input Reset Start wizard to reset sections of input parameters including graphics Dn Select between GQ600 and other graphic behaviours EF P Set up a new crossover from scratch This selection starts a wizard to guide through the process Also select this to alter the set up of the current crossover Crossover bansins Gang link outputs together so their parameters track i IMTERF HCE External Starts a wizard to configure the baud rate ID and port selection of the remote interface Wiser 2400 setup Configures wireless interface if connected InterFace Configure the GPI inputs used for closed contact memory recall hardware option m fm TEM system Status Displays a series of information screens including software version temperature hardware and firmware versions date and time Press NEXT to jump through info LED Contrast Adjust the viewing angle of the screen LED Brightness Adjust the brightness of all the meters and button LEDs Temperature Hlarm Set the threshold for the unit to flash a warning temperature message on the screen Program Update Select this option to install new operating software see page 35 for more information Wake up Time Adjust the time before the audio fades in on start up can also be set to keep mutes on when powered up Dutput Meters Optn Select the monitoring point for the meters either pre or post mu
11. NN lt 1000 metres Note that this includes any units set up as shadow IDs RS485 OUT has a range of tried and tested interfaces all of which are listed in the XTA Interface Guide available from our website We can supply all the interfaces described in this guide directly please get in touch Cable NN m DP448 Setup RS485 INI amp 4 Series Operator s Manual RS485 Connection To use RS485 communication directly from a computer a master unit must be configured to receive RS485 You must have a suitable 65485 port on your computer or a converter connected to the serial port in use This configuration is shown below along with the required unit setup RS232 to RS485 CONVERTER KIT XTA Part number INT 485 9 D type 1 1 Male to Female NOT Null Modem cable MAX I METRE mt d 9 pin D to XLR Male Adapter RS232 485 Laptop or Desktop 1 XLR to XLR Converter Running Audiocore KK Systems Remote M enu K2 RS485 COM or COM2 Baud Rate I 15200 Cable DP428 Setup 2 2 Mode R5485 Modes SPEED SERIAL 5200 Stop MIDI Prog Chns Remote ID Number 1 Additional DP428s may be set up as slaves with incremental ID numbers as necessary Both the converter and the required adapter cables are available from XTA The adapter is available i
12. There are therefore three types of memory available IFHFLIT CROSSOMEE and GEHFHIL These and all combinations of memory types appear in the GLOBAL MEMORY Sub and its operation warrants a little more explanation Selecting to Store or EECC using the Global Me mcr option offers the possibility of storing various combinations of the available memory types and these are selected using the BACK and NEXT keys To explain how this all works please consider the following example There are 0 memories stored in the unit with various combinations of input graphic and crossover memories CROSSOVER MEMORY MEMORY I MEMORY 2 MEMORY 3 MEMORY 4 MEMORY 5 MEMORY 6 MEMORY 7 MEMORY 8 MEMORY MEMORY IO As can be seen different memory locations contain different combinations of the three memory types available If it is required to recall a location that contains Input Graphic and Crossover settings this will limit the selection as shown overleaf Page 24 2064 GOA See Be gt lt ETE 4 Series Operator s Manual INPUT MEMORY GRAPHIC MEMORY CROSSOVER MEMORY MEMORY 8 gt em CTI reb bd INPUT MEMORY GRAPHIC MEMORY CROSSOVER MEMORY MEMORY IO uuum M mum There will be three memories to choose from in this case as location 6 is an Input amp Crossover memory whilst 8 and 0 will appear as they contain Input and Crossover informa
13. The high pass crossover filter on each output has a frequency range of lt 2 up to 32kHz in 1 36 Octave steps If you try to set the high pass filter to a higher frequency than the low pass which would be pointless and result in no output the message High Law Free Liuerlcip will be displayed Note that to access the 48dB Octave filters parametric bands 6 8 7 need to be p aa or set to OdB If they are not the message Bypass PES D m 7 Access slopes will be displayed Output i HPF eus Linbkg Riedg Frequency Slope Output Low Pass Filter The low pass crossover filter on each output has a frequency range of 35 12 up to gt 32kHz in 1 36 Octave steps If you try to set the low pass filter to a lower frequency than the high pass which would be pointless and result in no output the message High Low Freg Querlcipl will be displayed Note that to access the 48dB Octave parametric bands 8 amp 9 need to be bypassed or set to OdB If they are not the message Bypass PERS amp amp To Access 008 Slopes will be displayed 1121 Output LEF TN LINELW ELEHJ docdb Frequency Slope Output Parametric EQ There are nine bands of parametric equalisation available on every output The behaviour of each individual band can be changed to a variety of different filter shapes including high and low shelves notch and bandpass Changing the filter type is achieved b
14. sure the link is put back on PC REG or the card slot will not function Replace the cover Gz WA Page 36 AST c 4 Series Operator s Manual Advanced Audio Features Graphic Equaliser Behaviour Each input of the 4 Series units has a 28 band graphic equaliser allowing traditional manipulation of the frequency response in a manner immediately familiar and accessible to all users The behaviour of the equaliser may be adjusted to produce an effect similar to either the GQ600 or a Special type of response Both types will be explained in this section and what primarily makes them sound as they do XTA s AudioCore software has been used in the following screenshots The GQ600 behaviour The GQ600 behaviour is designed to offer the best of both worlds in terms of corrective control and creative control This is achieved by manipulation of the bandwidth of the filters depending on the amount of cut or boost being applied At low levels of cut boost where it would be safe to assume the changes to the EQ are mainly for creative use the bandwidth is wider so the changes to the overall response are gentler A gt Device 1 As can be seen by this example the Gaine Delay Line GPA Gpe GpC nA 118 InD Du1 0 42 Owa Owa Ou 5 Owe 0 48 500Hz band has been boosted by 236 and the bandwidth that has been affected is quite wide there is
15. HIGH MID OUTPUT 2 BkHz HIGH OUTPUT 8kHz 22 2kHz Page 56 E 55 AAC T ay i a SSe 4 Series Operator s Manual 4 wa FULL RANGE OUTPUT lt IOHz gt 32kHz FULL RANGE OUTPUT lt IOHz gt 32kHz FULL RANGE OUTPUT lt IOHz 32kHz FULL RANGE OUTPUT lt IOHz 32kHz 4 Series Operators Manual Page 57 Appendix III DP424 Default Crossover Configurations 2x2Wa LOW OUTPUT 40O IHz l 62 kHz HIGH OUTPUT 62kHz 22 2kHz LOW OUTPUT 40 IHz 62kHz HIGH OUTPUT l 6ekHz 22kHz x4wa BASS OUTPUT I5 IHz 49Hz LOW MID OUTPUT I49Hz I 3IKHz HIGH MID OUTPUT 2 8kHz HIGH OUTPUT 8kHz 22 2kHz Page 58 gt gt E TE YE 4 Series Operator s Manual
16. for safety reasons it is not possible to bypass the high and low pass filter sections QUIT exits menus back to the default screen Rotary Encoders Three velocity sensitive encoders adjust the relevant parameters as displayed on the screen Memory Card Slot Will accept type or type PCMCIA SRAM cards and using an adapter Compact Flash cards This allows the unit to be cloned memory sets saved presets loaded and firmware updates installed Status LEDs The four status LEDs show from left to right AES inputs selected flashing if not locked AES outputs selected Comms activity only illuminates on messages addressed to this particular unit and a general purpose spare indicator Input Sections Control and monitor input signal paths Red MUTE buttons illuminate when pressed and mute audio for that channel DIT buttons illuminate yellow when pressed and access gain on first press then last viewed parameter on second press then exit on third press Input meters show dB from clipping point of the analogue to digital converters Yellow OdB LED illuminates 3dB from clipping Red CLIP LED may illuminate independently from the rest of the meter to show digital overflow All four CLIP LEDs illuminating indicates internal clipping after the ADC Output Sections Control and monitor output signal paths Red MUTE buttons illuminate when pressed and mute audio for that channel DIT buttons illuminate yellow when
17. 21 Menus in Detail 23 Memory Structure 24 Remote Control Interface Operation 26 RS232 Interface 26 RS232 Connection Single Unit 26 Loading New Software via a PC 27 RS232 Connection Multiple Units 27 Shadow ID Numbers 28 RS485 Connection 29 AES Inputs and Outputs 31 AES Input 3l AES Output 3l AES Diagnostics and Status Information 32 4 Series Operator s Manual Page 4 Security and Locking 33 Entering the Password to Complete the Locking Operation 33 Unlocking the Unit 34 Forgotten the Password 34 PCMCIA Card and Compact Flash Card Usage 35 Preset Library Updates via the card 35 Unit Software Updates via the card 35 Unit Cloning 36 Copying Unit Software and Preset Files 36 Copying Data from Source Unit 36 Loading Data into Destination Unit 36 Cold Start Reboot Procedure 36 Advanced Audio Features 37 Graphic Equaliser Behaviour 37 The GQ600 behaviour 37 The Special behaviour 38 Program Limiter and D Max Limiter 39 Program Limiter 39 D Max Clip Limiter 40 Setting Accurate Limiter Thresholds 42 Crossover Filter Slopes 43 Time Alignment 43 Parametric Filter Types and Their Uses 44 Standard Parametric EQ 44 Shelving EQ High Shelf shown 45 Creating a Flat topped EQ Response 45 Notch Filter 46 All Pass Filter 47 Phase Filter 47 Low High Pass Variable Q Filter Low Pass shown 48 Elliptical filters 47 Specifications 50 Warranty 51 Options and
18. Accessories 51 Index 52 Appendix I DP446 Default Crossover Configurations 54 Appendix DP444 Default Crossover Configurations 55 Appendix III DP424 Default Crossover Configurations 58 4 Series Operators Manual Page 5 An example of this equipment has been tested and found to comply with the following European and international Standards for Electromagnetic Compatibility and Electrical Safety Radiated Emissions EN55013 1 1996 RF Immunity EU EN55103 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 MOISTURE DRIPPING OR SPLASHING ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS ENLEVER NE PAS EXPOSER A LA PLUIE NI A L HUMITE Objects containing liquids such as vases must not be placed on this equipment 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 fi
19. Bandpass Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The bandpass filter has adjustable frequency and Q or Bandwidth controls These affect a range of frequencies symmetrically about the centre freqency as shown in the graph gradually cutting the level but providing no gain Remember that Q is Bandwidth so the higher the Q the lower the Bandwidth and the smaller the range of frequencies affected Note that the response is fundamentally NOT a flat topped response so it is not constructed from a high pass and low pass See previous page for details of how to construct a flat topped filter response Notch Filter mA Input MOTD LEJE Hotch Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The notch filter has adjustable frequency and Q or Bandwidth controls These affect a range of frequencies symmetrically about the centre freqency as shown in the graph Remember that Q is Bandwidth so the higher the Q the lower the Bandwidth and the smaller the range of frequencies affected The notch filter depth varies with bandwidth the wider the filter the lower the depth will be Page 46 4 Series Operator s Manual All Pass Filter
20. L Limiter Overshoot Prevention 41 Limiter Threshold 42 Limiters 39 Load New Software 27 Lockouts 33 Look Ahead 40 Look Ahead Delay 40 Low Pass Filter 18 M Master Password 34 Memory Cards 35 Memory Structure 24 Menus Details 23 Quick Ref 21 Shortcuts 22 Midi Start Stop 30 N Notch 46 NTH Response 49 4 Series Operator s Manual O Options 51 Output Delay 17 Output Gain 17 P Parametric EQ 16 18 Password Override 34 Passwords 33 PCMCIA 35 Phase 47 Polarity 17 47 Preset Updates 35 Program Limiter 19 Q Quick Setup 11 R Rear Panel 10 Release Times 39 Resonant Filter 48 Routing 15 Basic 12 Free Assign 15 Presets 12 RS232 Interface 26 RS485 Interface 29 4 Series Operators Manual S Security 33 Security Menu 23 Shadow IDs 28 Shelving EQ 45 Shipping 7 Sidechain Delay 40 Software Updates 35 Special 38 Specifications 50 Standard Parametric 44 Start up 11 System Menu 23 U Unit Cloning 36 Unlocking 34 Unpacking 7 Updating Software 27 Upgrading 27 USB Interface 26 V Vari Q 48 W Waranty 51 Page 53 Appendix I DP446 Default Crossover Configurations 2x3Wa LOW OUTPUT 22 IHz l20Hz OUTPUT MID OUTPUT I2OHz 82kHz OUTPUT e HIGH OUTPUT 82kHz 22 2kHz OUT
21. The Special behaviour is designed to offer a more constant Q type response which means there is less variation of the filter bandwidth at different cut boost levels This leads to a more rippled response at low values of cut boost but is also less peaky when high levels of boost are applied ensuring the flattest response when adjacent faders are adjusted Consider the group of faders gently boosted as shown Gains Delay Limk GDA Gpe 660 50 nb Inc no 041 042 0 43 0 14 0 45 046 04 0 48 below with the GQ600 behaviour selected As can be seen the filters responses have combined to give smooth lift in response across the entire region The overall level is considerably higher than the individual amount of boost applied to any single band 1274 1 1 1 1 A 31 40 50 63 80 100 125160 200 250 315 400 500630 800 Tk 1625 16 2k 2k53k15 4k 5k 10k12k516k 55 OK The same bands have been boosted in the example Delay SpA GpC Ina InB laC InD Qu1 0 2 0 3 Ou4 Ou 5 Ou6 Out 7 Ows below this but the behaviour has been set to Special The ripple in between bands is now obvious due to the bandwidth not having widened at low level boosts However the overall level is much closer to the highest maximum filter s boost 12 31 40 50 63 60
22. Write Protect switch on the card ON before removal as data corruption can occur as the card is pulled out of the slot Loading Data into Destination Unit If the unit is already running copy the software presets as explained previously on page 33 Cold Start Reboot Procedure xta Please only undertake this procedure if you are confident with internal workings of electronic ALERT devices dangerous voltages exist internally XTA cannot be held responsible for any damage caused to the unit or user If you are in any doubt about what to do please call us and we can talk you through the process or return the unit to your local distributor This procedure explains how to reboot a unit and load new software when there has been a problem during a remote download for instance the PC has crashed or the unit was switched off duing the update Take the top cover off the destination unit taking care NOT to touch the power supply or mains inlet Move the link maked PC REG to the location marked SWAP Insert the PC card containing the software and switch the unit on E mm PC Card Slot It should boot up and display Erasing then begin loading the new software the process is complete it will prompt for the Ter 2 link to be put back to REG Remove the card and switch the unit off and on again If successful it will boot up normally and display Sn ME SoPtucre 2118
23. and how many outputs it has Page 20 4 Series Operator s Manual Menu System Overview Below is an overview of the menu system a lot of functions have been assigned menu shortcuts these are accessible directly from the default screen by pressing MENU followed by the appropriate MUTE or EDIT button as shown This table only shows the top level of each menu item some of these will start wizards or access additional functions and these will be explained in later sections Note that currently the menu shortcuts only apply to the DP448 xta_ jump back to the last menu item accessed directly from the default screen press MENU three 3 times first press is into menus second is a jump to the sub HINT menu third is to the item Design U Unit LocEIna Output Selection Crossover Input Fez Crossover Dansir Wiser ZAL LCD Contrast AES Status mra Setup n lt gt Erase a Memory Change Graph CL GPI InterFace LED Brightness Temperature Alarm Proarcam Update Output Meters Filter Q Bancduidth cD lt Delay Time DSt nce Clip LED Hold Time cet Date amp TIME xta 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 INFO to menu mode 4 Series Operators Manual Page 21 Menu System Shortcuts A lot of functions have been assigned menu s
24. are fully balanced pin 2 hot 3 cold screen Note the legending on the panel to designate which outputs are used for AES streams when the digital outputs are enabled Please see page 3 for more information db em db ma wy aa 7 DIGITAL AES Input Switch Recessed switch to select AES digital inputs Red LED will illuminate in the hole when AES inputs are selected along with the corresponding front panel indicator Audio Inputs 3 pin XLR sockets are provided for each me channel All are fully balanced pin 2 hot 3 cold screen OCK HAZARD DO NOT REM OVE COVERS AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR Note the legending on the panel to designate which inputs are used for AES when the digital inputs are enabled Please see page 3l for more information AXte Always replace the fuse with the correct type and rating as shown on the rear panel legend ALERT Page 10 4 Series Operator s Manual Operating the 4 Series Note about operation with AudioCore software The following operating information covers setup and control of the 4 Series via the front panel controls only Please consult the manual supplied with this software for information regarding full computer control Start up procedure Switching on the unit will display a brief message detailing the unit type and software version running Huciobore LATE W lib and all LEDs will briefly illuminate The unit will
25. aus OOOO Security and Locking After selecting the Security Sub Meritt and pressing ENTER select one of the lock types choosing the most appropriate one for your application As ever ENTER will confirm your selection ser Speri IC 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 souer Onia All input parameters are available but only the gain trim 6dB is available on the outputs effectively locking all the crossover settings All mutes remain active Auer Trin All input parameters available but no output parameters the crossover sections are completely locked All mutes remain active Trim Hute 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 applies to both inputs and outputs All mutes remain activ
26. behaviour of each individual band can be changed to a variety of different filter shapes including high and low shelves notch and bandpass Changing the filter type is achieved by pressing ENTER during editing any particular band For more details about the various types of filter available please see page 42 mA input Glen Frequency Q Gain Page 6 55 e gt Brararararare 4 Series Operator s Manual ALTO MAHAD SITEA Editing Audio Parameters Output Channels Output Gain The range of the control over the input gain is 40dB to 15dB in O IdB steps GFI Dutputli Guir Gaim Gain Output Polarity The polarity or phase of each output may be switched individually as below li Folarit L OP Output Delay The maximum available delay between any input and output is 650 00mS For example if the input delay on channel A is set to 500mS the maximum available output delay for any output fed from input A will be 1505 The readout units can be changed between time in milliseconds distance in feet or distance in metres Please see page 23 for more details OFI Output Delo Helgas tpud x ImS x lOuS xO 3uS 343mm 4mm O lmm 4 Series Operators Manual Page 17 Output High Pass Filter
27. feature is enabled the display will show Rel Fut in place of the release time Selection of automatic time constants is through the Design Croazmouer wizard in the Era zouer wiub Penu More information about the limiters and their use is given in the section on page 39 OFI DOutputl Chelm Relzliecdiu cle Release Threshold 4 Series Operators Manual Page 9 Input 3311921112 and Output Ganging The method of linking inputs or outputs together during editing is achieved in the same way so only crossover output ganging will be explained here Having selected Lt Uu b PllenL the current ganging set up will be displayed This will either be a preset selection as would be useful in a standard crossover configuration for example C Lrozzouer Doncsinc Donemscle me edm Would be a logical ganging arrangement if the crossover was set up as a 4 x 2 way linking the control and adjustment of all Low outputs together and that of all High outputs together However if the crossover has not been set up with a preset routing configuration then it may be required to set up the ganging to compliment this configuration This is achieved using the Free mode This is selected from the preset ganging choices which are cms s Mone all outputs independent Gonsimms Freebzzsim choose ganging CLIT x 8 way DGoamems lm 4m d 4 x 2 way Done
28. key will automatically set the gain back to OdB Each filter type will be explained in turn in the following section Standard Parametric EQ B pepe 9 mA Input A The standard parametric band has adjustable frequency Q or Bandwidth and Gain controls These affect a range of frequencies symmetrically about the centre freqency as shown in the graph som Various levels of cut and boost are shown to the left along with various Q settings gain boosts only are EBI 121541 21 shown below Remember that Q is Bandwidth so MEI ee the higher the the lower the Bandwidth and the smaller the range of frequencies affected LJ NN MEE REN ER NE ERO 800 pel 30 00 20 00 Hz 100 00 1000 00 10000 00 20000 00 Page 44 98 999eTOeoo0oooOogo 4 Series Operator s Manual 8 xim BIBIBIBIBIBIB 2 i OOOO Reni Shelving EQ High Shelf shown Remember that Q is Bandwidth so the higher the Q the lower the Bandwidth and the smaller the range of frequencies affected Note that Q settings above 0 75 will result in slight overshoot in the filter response as seen at the highest setting to the right This is normal behaviour and does not indicate instability
29. of how to adjust the high and low pass crossover filter settings Time Alignment A further advantage of the 4 Series 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 0 3uS steps 0 mm Please see page 17 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 Centigrade Fahrenheit 32 x 0 5555 UT 4 Series Operators Manual Page 43 Parametric Filter Types and Their Uses A wide selection of filter types has been made available under the PEQ section when editing input or output filters Scrolling through the various filter types is achieved by repeated presses of the ENTER key Note that this will only change filter types if the filter is BYPASSED or the GAIN set to OdB Bypassing the filter then changing types using the ENTER
30. supply will not work The unit may be switched on and off as necessary just be sure NOT to press MENU or the entire Break Code procedure will have to be repeated Page 34 4 Series Operator s Manual PCMCIA Card and Compact Flash Card Usage PC cards or PCMCIA cards to give them their full title may be used to store several types of data for use with the 4 Series hese are Preset Library Updates Unit Clone Data Backup Software Updates The type of card that the units use is a PCMCIA Type or Type II Card 5 2Kb or greater SRAM can supply you with these cards the part number is Cards bigger than 5 2Kb in size may be used but the units will only use the first MEMO 512K i e the first 50 in the case of a Mb card In many cases it is actually cheaper to buy the larger cards rather than the smaller sizes XTA PRESETS j 5 BATT HANGED It s worth noting that a card can t store more than one type of data at a time with 1 02 6 the exception of memory sets clone data Four complete memory sets and OWO O one set of clone data may be stored on a single card Typically three sets of W BATTERY WRITE PROTECT presets can be stored on a 512K card Higher capacity cards will obviously store more Software updates preset files memory sets may not exist on the same card The memory on the card is kept alive by a lithium cell built into the car
31. this zip file An RSS feed is available on the website to ensure immediate notification of software releases RS232 Connection Multiple Units If control over multiple units is required typically the slaves will be set up to run from the RS485 ports on the master unit Note the incremental ID NUMBER option in the unit s interface setup 9 pin D type 1 Male to Female NOT Null Modem cable OR USB Serial Converter USB 232 DP448 Setup RS232IN irizizizicizi lt w 85 OUT 2 e e e e e lt A Laptop or Desktop Running AudioCore Remote Menu GOT 2 L RS232 w COMI to COMI2 po Baud Rate 115200 Interface Sub nenut 7 RS495Modex SERIAL SPEED ll5zao Stop MIDI Prog Chns Yes Remote ID Number 3 Additional units may be set up as slaves with incremental ID s 4 Series Operators Manual a Page 27 Shadow ID Numbers Shadow ID numbers allow extra units to share the same ID and follow the settings of the main ID This is useful for larger systems for example anything above a 4 way stereo system where it is only necessary to set up one side of the system and allow the other unit to track it identically Using the shadow IDs in this way also reduces the apparent system complexity within AudioCore This is due to the fact that shadow ID s NEVER send back any settings to Au
32. to protecting the amplifier from clipping The following section describes how to set up the units 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 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 e Have an attack time which is calculated to allow transients through but keep the RMS level below the speaker manufacturers specification e Have arelease time which is sufficiently long to avoid the limiter itself modulating the program e intelligent enough to adjust the envelope of the limiter according to the frequency content of the program material The program limiters are capable of performing all these tasks The only parameter that the user must set manually is the threshold and it is crucial that this is done correctly Consider the table below Ratio Vrms Pwr 8 Q Pwr 4 Pwr 2 Q 42 41 40 39 38 37 36 35 34 33 32 3 30 Using this table it is straightforward procedure to work out the required setting of the limiter thresholds for the system First check the RMS power rating of the speaker system
33. with the standard crossover filters to produce mo LLL sharper roll offs than would be otherwise achievable 00 Hz The use of this filter is explained in the following example The graph shows three different low pass filter shapes Number is a standard 24dB Octave Linkwith Riley curve Number 2 is a 48dB Octave Linkwitz Riley As can be seen number 2 is significantly steeper in roll off than number as would be expected However number 3 is a 2dB Octave Butterworth filter with an Elliptical Low Pass filter following it This produces a combined roll off very close to that of the 48dB Octave with the side effect of the response rising again after the initial drop from the pass band To produce a crossover filter of this shape it is simply a case of setting the low or high pass filter for that output to the desired crossover frequency and selecting a 2dB Butterworth response OFL Cutput 1 HEF 7 2 Butterworth lee Then select a parametric section on the same output and modify its behaviour using the ENTER key until the corresponding HPF Elliptical filter is selected Set the turnover frequency of this filter to be the same as that of the crossover filter Make sure you chose a high pass elliptical to work with a high pass crossover and low pass elliptical to work with a low pass crossover InH input A HEFL ZAZIE HP 4 Series Operators Manual Page 49
34. 100 125 160 200 250 315 400 500 630 800 1k 152516 2k53k15 4k 5k 3 Bk 10k 12k5 16k ses 09e OK Global View Page 38 4 Series Operator s Manual Program Limiter and Limiter The 4 Series units have two levels of dynamic protection on its outputs a traditional program limiter and a newly introduced limiter Program Limiter High performance digital limiters are provided for each output with control over attack time release time and threshold parameters see page 39 for details This level of control allows the user to balance the required subjective quality of the limiter against the driver protection requirements 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 LTOEZCHET sub menu there is an option for automatic limiter time constants Use this option if you are unsure how to set the time constants manually XTA recommend the use of the automatic setting In this mode the time constants will be automatically set from the High Pass 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 63Hz 125Hz 16 128mS 125 2 250Hz x16 64mS 4 Series Operators Manual Page 39
35. 4 Series units have a full AES implementation built in as standard This allows the unit to both receive digital audio directly and to transmit digital audio on to other devices The switching of input and output can be performed independently and the inclusion of sample rate converters on the inputs allows the unit to accept sample rates from 32kHz up to 192kHz AES Input Input selection is via a recessed switch on the rear panel of the unit between input D and output A red LED inside this aperture illuminates to show that the AES digital inputs DIGITAL have been selected complimentary LED the front panel below the PCMCIA card also illuminates switch controls the rear panel LED directly whilst the front panel one is via the processor allowing it to relay a little more information 1 it is flashing this means that AES inputs have been selected but have not locked Once a stable AES signal is being received it will be permanently illuminated DUTPUT 2 OUTPUT 1 The AES inputs are marked on the rear panel for channels A amp use input A and for channels amp use input AES OUT 182 SE ENT MUST BE EARTHED CAUTION SHUGEMAZARD DO NOT REMOVE COVERS AES Output AES outputs are selected through the AES menu HES Sub Menu Output Selection Pressing ENTER and then using BACK and NEXT chooses either HNCLOELIE or Pres ENTER again to confirm selection The AES
36. PUT 3 LOW OUTPUT 22 IHz l20Hz OUTPUT A MID OUTPUT 2 I B2kHz OUTPUT HIGH OUTPUT L 82kHz 22 2kHz 6 3x2 wa OUTPUT 40 IHz l G2kHz OUTPUT OUTPUT I 62kHz 22 2kHz OUTPUT HIGH OUTPUT 40 IHz 2 OUTPUT 3 OUTPUT 6 2 22kHz OUTPUT 4 OUTPUT 40 IHz 2 OUTPUT 5 HIGH OUTPUT l 62kHz 22kHz OUTPUT 6 Page 54 e 4 Series Operator s Manual 2 2 Way 2 Aux X 6 wa LOW OUTPUT 40 IHz 62kHz gt i HIGH OUTPUT l 62kHz 22 2kHz LOW OUTPUT 40 IHz e2kHz HIGH OUTPUT l e2kHz 22kHz FULL RANGE OUTPUT lt IOHz 32kHz ni FULL RANGE OUTPUT lt IOHz 32kHz o SUB BASS OUTPUT I5 IHz 80 3Hz gt i LOW BASS OUTPUT 80 3Hz 49kHz BASS OUTPUT I49Hz IkHz LOW MID OUTPUT IkHz 4kHz HIGH MID OUTPUT 4kHz IO IkHz B HIGH OUTPUT IO IkHz 22 2kHz 4 Series Operators Manual Page 55 Appendix ll DP444 Default Crossover Confisurations 2x2Wa LOW OUTPUT 4O IHz l 62 kHz HIGH OUTPUT l 62kHz 22 2kHz LOW OUTPUT 4O IHz l 62kHz HIGH OUTPUT I 62kHz 22kHz x4 wa BASS OUTPUT I5 IHz 49Hz LOW MID OUTPUT I49Hz I 3IKHz
37. S which corresponds to a distance change of 0 mm The comprehensive standard specification also includes up to 255 memories and remote control via RS232 or RS485 ports with security lockout Note that only the RS232 and RS485 interfaces offer full remote control of this product the GPI interface may only used for memory recall program change purposes Page 8 s e O pm E 22 gt i 4 Series Operator s Manual Front Panel Familiarisation LCD Screen Shows by default the name of the last recalled memory on the bottom line of the screen and the current routing on the top line Also used to show all parameters as they are edited and all menu selections Control Keys Selection and adjustment of parameters NEXT key moves forward through list of parameters BACK key moves backwards through list of parameters MENU key activates the main menu a second press selects the last menu edited a third press selects the last menu item this way three presses on MENU from the default screen will jump back to the last parameter adjusted Selection of different menus is accomplished using the BACK and NEXT keys or with the FREQ encoder ENTER key enters the chosen menu confirms selections and changes filter types when editing parametric sections BYPASS will flatten the currently selected parametric sections or input graphic equalisers Note that
38. Series Audio Management Systems Operators Manual Revision 1 00 XTA lectronics Ltd The Design House Vale Business Park Worcester Road Stourport on Severn Worcs DYI3 9BZ england Tel Ole99 879977 Intl 441299 879977 Fax Ol299 879969 Intl 44 1299 879969 Web http wuiu xta co uk XTA Electronics Ltd 2006 Designed amp written by Waring Hayes 05 2006 1 you have any comments or suggestions about this manual please contact XTA at the address above or email manuals xta co uk 4 Series Quick Reference Editing channels press channel s GAIN key First press accesses that channel s gain To scroll through channel s parameters use the BACK and NEXT keys Second press accesses last viewed parameter Third press will drop back to the default screen Accessing menus press the MENU key Use the BACK and NEXT keys to select the sub menu required and enter the sub menu using the ENTER key This applies to all levels of menu ENTER always confirms selections The Menus and their Contents GLOBAL Sub menu Recall Store Erase input graphic and crossover settings or combinations of IHFLIT SECTILI Sub menu Set up input ganging GEQ setting LEL L EF Sub menu Set up or adjust crossover design including routing and auto limiter setting Also set up output ganging Sub menu Comms interface setup RS232 and RS485 G P l interface configuration a
39. a time may be connected to the computer via this interface Additional units may be daisy chained via the RS485 connections from the back of the first one it acting as a converter for them but their RS232 ports are not used RS232 Connection Single Unit typical interface set up might involve running an RS232 link from laptop or a desktop computer to a 4 Series unit set up as a master unit The diagram below shows this method of connection the required menu options are also given Note that the RS232 cable must be a 1 1 connection type NOT a null modem cable which has connections crossed internally 9 pin D type 1 Male to Female NOT Null Modem cable OR USB Serial Converter USB 232 DP448 Setup RSe32 IN InterFace Sub menu a Mode Modex a a Laptop or Desktop RD Remote ID Number 1x Running AudioCore Remote Menu RS232 COMI to COMI2 Baud Rate 115200 Page 26 4 Series Operator s Manual Loading New Software via a PC The unit s internal software may be updated via the RS232 port ONLY one unit at a time We recommend disconnecting all other devices when updating the software The unit s interface must set as RS232 Master on IDI for the PC loader program to recognise it and allow the update to be sent Download the latest version of the loader program and the unit software from www xta co uk and follow the instructions included with
40. and its impedance Y Look up this value in the table above using the closest value below the rated power of the speaker system Note the corresponding dB value v Check the gain of your amplifier which needs to be in dB v Subtract this gain figure FROM that 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 axta ALWAYS REFER TO YOUR SPEAKER MANUFACTURER FOR LIMITER SETTINGS Page 42 4 Series Operator s Manual Crossover Filter Slopes It should also be noted that the turnover frequency displayed on the screen is the 3dB point for all types except 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 display Filter Type High pass factors Low pass factors Bessel 2dB Oct 5 Butterworth 2dB Oct Bessel 8dB Oct Butterworth 18dB Oct 9 084 Butterworth 48dB Oct OBB Please note that unlike conventional analogue crossovers crossover points and slopes are set with absolute accuracy since component tolerance problems do not occur Please see page 18 for details
41. andard confi does not suit see page 15 4 Series Operators Manual OO TOOOOOOOO bung STSIEIBISISISIS Page 55 S AUDIO SETS Routing Options and Processing Blocks Due to the completely new DSP platform the routing possibilities within the 4 Series have been made completely flexible with a matrix available allowing any combination of inputs to be routed to any output The additional DSP power has permitted the inclusion of more processing blocks even considering the extra inputs and outputs and the doubling of sample rate To reduce set up time and aid usability several standard configurations are available as described in a later section This section will outline the processing blocks available in relation to the signal path and explain the various options for routing including the Free Assign mode which opens up completely flexible channel routing Inbut Channel Makeu The diagram below shows the processing available on each of the four input channels before routing to the matrix ANALOGUE iH DIGITAL PEQ x8 28 Band Graphic EQ MAIN DELAY X INPUT Outbut Channel Makeu The diagram below shows the processing available on each of the eight output channels after routing from the matrix ANALOGUE HPF LPF PEQ x 9 DELAY GAIN PROGRAM CLIP MU TE CROSSOVER LIMITE RS
42. d itself This has an average life of approximately five years The unit will warn you if you insert a card with a battery that is low or flat The battery should be carefully removed and replaced as soon as possible It s good practice to note on the card the date of the battery replacement Most cards only allow for ten minutes or so of unassisted backup so be sure to have the new battery to hand when removing the old one The slot is wider than that of previous units as it allows the use of PC card adapters This permits the use of Compact Flash cards with a PCMCIA Adapter to be used to store information However please note that Compact Flash cards cannot be used for cold start software updates as they require 1114 d formatting and cannot be used as a boot loader as is required for a cold start update m PLEASE NOTE THAT THE DATA FORMAT USED ON MEMORY CARDS IS NOT COMPATIBLE WITH THE WINDOWS STANDARD AND CANNOT BE READ IN A PC CARD READER COMPACT FLASH Preset Library Updates via the card The preset crossover library may be updated by simply inserting the card containing the new library file into the unit and pressing MENU The unit will recognise immediately if there is a valid preset file on the card and display Preset cate Frezz After the file has been loaded the unit will re boot It is then safe to take out the card Unit Software Updates via the card Insert the card containing the new software into th
43. delay between the signal actually going There is a hidden sidechain in operation even in this case The main signal path is fed through the monitor desk and the gain controlled by adjusting s the fader The sidechain is formed by the feedback path between the engineer s ears M checking the level and his brain instructing his hand to turn the fader down if the volume goes I over the threshold he has chosen b to Hand over the threshold the engineer registering the situation and then turning the signal down will be in the order of several hundred milliseconds at best This will only be true if he is not distracted in reality it may be several seconds before any gain reduction is imposed on the signal to bring it under control Level Threshold for Onset of Gain Control Time i iil Input of module Overshoot here as dynamics processor cannot predict or react fast enough to this peak LU NA 0 M 1 hi Output of module For an analogue dynamics processor the situation is much better Controlling the gain electronically and not relying on a human sidechain feedback mechanism it can react much more quickly The red waveform represents the input to the dynamics module with the dotted line showing the threshold for gain control to occur There are several peaks towards the start of this signal that are above the threshold and so the dy
44. dioCore and because of this will NOT appear in the list of connected units They can be thought of as listening to and acting upon all information addressed to them but not replying Up to 128 shadow units may be connected and assigned the same ID as the main unit but remember that the maximum total units on any one RS485 network is 28 Shadow ID numbers are accessible when the unit s interface is configured and will appear after ID number 128 starting from again but designated shadow IDs with s after the number amp Any ID can have multiple corresponding shadows RS485 Interface This interface is fitted as standard to all units and is accessed via DP448 Setup 25232 IN the 3 pin XLR sockets on the rear of the unit Cables to connect units together or to an RS232 485 converter will need to be ZZ wired one to one We recommend the use of standard shielded RS485 OUT KI EI microphone cables or a balanced feed from a multicore RS485 is a fully balanced system capable of sending data over distances of up to one kilometre Note however that this is the total length of connection The RS485 output of each unit is purely hardwired from the input and so no electrical regeneration of the signal is provided What this means is that the distance from the first RS485 output to the last RS485 input must not exceed km in total As this diagram illustrates The combined length of cables 01 02
45. e Changes WIELE parameters are accessible in effect the EDIT keys do nothing All mutes remain active Changes Mutes All may be viewed but none be adjusted This applies to both inputs and outputs All mutes are also locked EVERYTHING No parameters are accessible in effect the EDIT and MUTE keys do nothing 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 EDIT keys can be used to enter a code by pressing any combination of the eight buttons Each EDIT key represents its channel labelling so any combination of A B C D I 2 3 4 5 6 7 and 8 can be used as a code as shown below Press ENTER to accept code and then re enter it to confirm ARE D T P B3 p xta_ To prevent external computer control being used to adjust locked settings HINT be sure to set the external interface to OFF before locking out the unit 4 Series Op erators Manual MK Ja 5 n5 ra ooo oe e Page 33 CRASS AUDIO MANABEMENT SYETEM c mO Aam Unlocking the Unit To unlock the unit press ENTER and then type the code in This can be entered by using the FREQ control to s
46. e storage and recall of settings A interface may also fitted to allow remote memory recalls using simple switch closure apparatus Security lock out is available for all controls The 4 Series are also equipped with AES EBU digital inputs and outputs and include a sample rate converter capable of accepting anything from 32kHz up tp 192kHz They may be controlled externally by XTA s propriet Windows software along with existing and future AudioCore products Features Superb audio quality carefully optimised double precision signal processing coupled with 24 bit conversion ensure a dynamic range in excess of 7dB The high sampling rate of 96kHz means minimal filtering providing exceptional sonic purity with a bandwidth in excess of 32kHz A flexible input output multi mode format caters for any configuration regardless of scale Both routing of inputs to outputs and ganging for editing are completely flexible A completely new SHARC based DSP platform supplies phenomenal computational power allowing the unit to provide not only multiple bands of standard parametric equalisation on every input and output but an additional full spectrum graphic equaliser on each of the four inputs This additional power also permits both program limiters and no overshoot clip limiters on each output Delay of up to 650mS may be independently set for each output with an exceptionally fine minimum increment of 300n
47. e unit and press MENU It will recognise if a newer version is available on the card and display a message of the form Program edate Press 4 Series Operators Manual Page 35 Unit Cloning The unit cloning feature allows the entire personality of the unit to be copied onto a PC card for backup purposes or so another unit can be instantly reconfigured to operate identically This will include all user memories and all user selectable menu options Note that OEM presets will not be copied use the procedure below to copy preset files Select mut Cloninas from the zr STEP zub Plenu and then choose to Store or Recall the cloning information as appropriate The unit will reboot after the recall procedure Copying Unit Software and Preset Files It is possible to copy the operating software or preset file or both onto a PCMCIA card to allow this data to be used in another unit This procedure is not part of the standard menu system and must be initiated on power on with a special key sequence Copying Data from Source Unit Switch the unit on with the MENU key held in momentarily After a few seconds the unit will ask for a security code Use the DIT keys in the same manner as for entering lock codes see page 33 for details and enter the following code to copy the software only 3AB4 to copy the presets only 2BB2 to copy the software and the presets Be sure to set the
48. elect a character and the BACK and NEXT keys to move to the next character Alternatively the EDIT keys can be used to enter a code by pressing any combination of the eight buttons Each EDIT key represents its channel labelling as described in the locking section Forgotten the Password Don t panic Your unit can still be unlocked In an attempt to improve the security system on the 4 Series and prevent a standard master password from becoming common knowledge the units now have a random password key generator The procedure for unlocking a unit using the password override is explained below Switch the unit on with the MENU key held in momentarily After a few seconds the unit will ask for a security code Use the EDIT keys in the same manner as for entering lock codes see page 33 for details and enter 2121 The display will show Enter STH Supplied Code Ereak Code ets HMMM The Break Code in the example 2345 should be noted and supplied to XTA We have software to generate the corresponding Pass Code which should be typed in followed by ENTER This will unlock the unit and wipe the previous password Note the following about this procedure Once the Break Code has been noted do NOT press MENU again during the operation of the unit except to get back to this point on power up or a different code will be generated The unit may be used as normal but every press of MENU will change the Break Code so the Pass Code XTA
49. emote Menu RS232 to 12 Baud Rate 15200 1 XLR to XLR Cable DP448 Setup P eir InterFace Sub menu Mode R5485 SERIAL SPEED 15200 Stop MIDI Prog Chns Yes Remote ID Number 1 DP448 Setup ERE m RS485 OUT B 8 8 5 68 Interface Sub nenut_ m Mode RS485Modex SERIAL SPEED llbz eo Stop MIDI Pros Chng Yes Remote ID Number 3 Additional units may be set up as slaves with incremental ID s Both the converters and the required adapter cables are available from XTA The adapter is available in a kit which includes a USB Serial converter the XLR to 9 pin adapter and the K2 ADE converter itself This complete kit is part number USB 485 XTA has a range of tried and tested interfaces including USB and wireless solutions all of which are listed in the XTA Interface Guide available from our website We can supply all the interfaces described in this guide directly please get in touch If a DP224 6 receives a MIDI Start or Stop command used to mute unmute all outputs it will relay this message on the RS485 port to any connected units 4 Series units will respond to this message even though it cannot directly receive MIDI commands due to not having a MIDI interface Page 30 4 Series Operator s Manual Duc am 0 gt am O AES Inputs and Outputs The
50. es have 256 memory locations but these are dynamic in nature obviously a memory containing Input Graphic and Crossover settings takes up more space than one containing just Input settings Storage of 56 memories containing Input Graphic and Crossover settings is possible I R 2 a 7 1181181818 lt w gt ooo Page 25 e ZA Pune Remote Control Interface Operation XTA has a range of tried and tested interfaces all of which are listed in the XTA Interface Guide available from our website We can supply all the interfaces described in this guide directly please get in touch RS232 Interface This interface is fitted as standard to all units and is accessed via the 9 pin D type connector on the rear of the unit Note that to connect to a computer s COM serial port correctly a one to one cable must be used and NOT a null modem cable A null modem cable has the transmit and receive wires swapped over and will not work The RS232 connection is suitable for distances of about a maximum of 25 feet between the PC and the unit If you experience problems with the connections consider e selecting a slower baud rate e selecting the Use Acknowledge Cmd option in AudioCore see the Remote Menu gt RS232 Configuration window e running the unit via the RS485 interface Note than only one unit at
51. full range Default suggested crossover frequencies are shown by each output LOW OUTPUT 22 IHz I2OHz MID OUTPUT I2OHz 1 82kHz HIGH OUTPUT I 82kHz 22 2kHz LOW OUTPUT 22 IHz l2OHz MID OUTPUT l20Hz 1 82kHz HIGH OUTPUT I 82kHz 22 2 kHz AUX C OUTPUT lOHz 32kHz AUX D OUTPUT 042 32kHz 4 Series Operators Manual bi lt Page 13 2 x 4 way crossover Inputs and B feed four outputs each with inputs C amp D being unused Default suggested crossover frequencies are shown by each output INPUT LOW OUTPUT I5Hz ld9Hz n LO MID OUTPUT I49Hz I 3IkHz OUTPUT HI MID OUTPUT I 3IkHz BkHz HIGH OUTPUT 8kHz 22 2kHz LOW OUTPUT I5Hz ld9Hz ni LO MID OUTPUT I49Hz I 31 kHz HI MID OUTPUT I 3IkHz 8kHz HIGH OUTPUT SkHz 22 2kHz OUTPUT CH RB EB DH EH EB LB E i rg rn re re ch 3 3 3 3 jJ i 3 x 8 way crossover Inputs A is fed to all eight outputs with initial settings being all full bandwidth The crossover points can be adjusted as desired INPUT FULL RANGE OUTPUT lOHz 32kHz n FULL RANGE OUTPUT lOHz 32kHz FULL RANGE OUTPUT 32kHz FULL RANGE OUTPUT 0142 32kHz FULL RANGE OUTPUT 0142 32kHz ni FULL RANGE OUTPUT lOHz 32kHz FULL RANGE OUTPUT IOHz 32kHz
52. hortcuts these are accessible directly from the default screen by pressing MENU followed by the appropriate MUTE or EDIT button as shown The entire list of features accessible in this way is given below Note that currently the menu shortcuts only apply to the DP448 cm lt gt Store Graphic Menor lt gt store Input Memory vq wbare Lraoezszouer lt gt Lore 1112111214 Henor Fecal Graphic Henor BECO Input BECO CTOEZCWET Me mors Recall Global Hemor lt gt lt Latus CD ternal InterFace Set up D gt Change Graphic lt gt Filter Oe Bandwidth Oteplay Eedacdout Delay Linitz Time Distance Eedcdout 2 lt HES Input status TD Design Crossover Input Gom cD lt Crossover ONET c lt gt Input Reset qm RES Cutout Moe 22 2 w a z A 2 m P 1 A R A 2 2 age ErErErA BTHvBTOTRTBO TET 22 BAB RB BB BB E j Bags GET 4 Series Operator s Manual Menus in Detail GLOBAL Recall Graphic Input and Crossover Memories or combinations of cC lt gt u oo Store Graphic Input and Crossover Memories or combinations of Erase Graphic Input and Crossover Memories or combinations of IMPUT SECTION Input ug Gang link inputs together so their parameters track
53. ife please dispose of it responsibly through a recycling centre 4 Series Operators Manual Page 7 Introduction The 4 Series are powerful DSP based audio processors ideally suited for install applications where they combine the functions of a multitude of conventional products in a compact unit with extensive remote control capabilities To achieve this the units have up to four inputs and eight outputs which can be configured in a selection of basic crossover modes 4 x 2 way 2 x 3 way 2 Aux 2 x 4 way and x 8 way as applicable to i o configurations They also offer a free assign mode which allows completely flexible routing of any output from any combination of inputs Each input has a gain control variable delay a 28 band graphic equaliser and a further eight bands of fully parametric equalisation The parametric filter bands have a large selection of different filter types available including shelving notch band pass phase and elliptical behaviours Each output has a gain control variable delay high and low pass crossover filters nine bands of fully parametric equalisation polarity switching and additionally a fully featured limiter and a final clip limiter The crossover filters offer slopes of up to 48dB Octave with a variety of responses available Remote control is catered for in the form of RS232 and RS485 ports and multiple user memories are provided for th
54. laying the main signal by the amount of look m R before the main signal arrived due to predelay ahead delay introduced M of module Time y Output of module The limiter which appears in output lists just following the traditional limiter has only two parameters to adjust OFI i LIDLIM Hedum LECIE The release time either Fast Medium or S10 and the threshold Note that the threshold is set to be a minimum of 2dB above the threshold of the program limiter setting the threshold to as the example means that no more than IOdB of overshoot above the threshold of the program limiter will ever be allowed The release time may also be set to follow the High Pass filter of the output this is achieved through the Liezizm ci sub menu and will result in the display changing to show 1 Cliplimn Auto I X 7 a 4 Series Operators Manual Page 4l tB BTBTBTE t DARE AUDIO MANAREBIENT SYETE Sg OOo en 3 2 2 3 5 3 2 7 Setting Accurate Limiter Thresholds The limiters built into the 4 Series are intended to be used 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
55. mszleme edm 2 x 4 way Selecting Free Hasir and then pressing ENTER will begin the process of ganging outputs together using the following simple rules v All outputs are ganged to the lowest number so to gang 3 amp 5 5 must be selected and then ganged to 3 v Outputs cannot share more than one ganging set so for example output 3 cannot be ganged to 2 and 4 unless they are ganged together as well Effectively 3 and 4 are ganged to 2 in this case With these rules in mind selecting and setting up gangs is quite straightforward Press MUTE to select channel to gang MUTE begins to flash Lag UM T JT INPUTS 2 Press EDIT keys to gang flashing channel with selection DIT LED will light to show lowest number in gang Press a MUTE key to choose the output to gang its LED will begin to flash and an EDIT key will illuminate to show which output it is currently ganged with To change this selection just press another DIT key remembering that gangs work from the highest to lowest number So to gang outputs and 5 press MUTE 5 then EDIT I the display will show c Lroaozssouer Dana Output 5 with 1 Ganging is cleared by selecting from the initial choices given above The Input procedure is identical to the crossover ganging selectable under the Input Sub Pen 5 Ganging choices will be dependent on the 4 Series unit in question
56. n a kit which includes an RJ 45 adapter the XLR to 9 pin adapter and the converter itself This complete kit is part number INT 485 If you need to make up one of the XLR to 9 pin adapters the pin out is XLR D type 2 3 3 8 4 Series Operators Manual MET A EH a 1 O EM DOO O m C3HCOHCO T P 29 ww Eier eG ZI age BE CO 2 Se B B 1 1 m A 2 E H rz T 2 oe GH 5 555 OF AUDIO MANAGEMENT cw os lt lt OOKO If your laptop or PC does not have a spare serial port or any serial ports for that matter the 5485 converter must be connected through a USB Serial converter The RS485 converter that XTA recommend is available in two types the standard K2 and the more advanced K2 ADE version Only K2 ADE version will work with USB Serial converters as these converters do not support the extra handshake lines used with the standard converter eo a Owe he 288 m 9 pin D type 1 1 Male to Female USB to RS485 NOT Null Modem cable CONVERTER KIT XTA Part number OR USB 485 USB Serial Converter 05 232 9 to XLR Male Adapter RS232 to RS485 CONVERTER KK Systems Laptop or Deskt K2 ADE ima e Running AudioCore R
57. namics processing should react to these as appropriate In this case reduce the gain The blue waveform shows the output of the dynamics module The circled peak demonstrates that the processor has missed the first peak above the threshold as it is very fast and short but has caught up shortly afterwards keeping all other peaks under control As it is unable to predict what is coming this will always be a failing with analogue dynamics processing Page 40 4 Series Operator s Manual The 4 Series s limiter predelays the sidechain signal resulting in a zero overshoot limiter which is able to catch all peaks and provide a reliable absolute maximum setting for the output of any channel a M Predelayed sidechain signal Main signal arrives slightly later The predelayed sidechain is shown in green with the main signal in red As the main signal arrives slightly after the sidechain the output from the unit does not suffer from the overshoot problem Threshold for Onset of Gain Control m ll Remember that this delay is only the order of tens of uS and is ji n m a predelay the sidechain is moved back in time in relation to the main signal Inserting a delay into the main signal path of an analogue dynamics processor will achieve similar results but with dede ME ASG the penalty of de
58. nd wireless interface m Sub menu Used to view unit s status and select various global options such as PEQ Q or bandwidth units delay units and output metering point pre post mute SECLIKIT Y Sub menu Used for locking various operations of the unit using a 4 digit code Sub menu Switch outputs from analogue to digital and monitor AES input status info AES inputs are switched via rear panel Notes The crossover output settings may be stored independently of the input settings and graphic EQ using the lokal Mewar sub menu The output meters show level in dB from the limiter threshold and the input meters show level from clipping the A D converters pre gain and all EQ The high and low pass crossover filters are defined independently on each output channel To access the limiter attack and release parameters select AutoLimiter TimeCst No when designing a crossover To swap parametric filter units between bandwidth BandW and enter zt Sub menu select Filter Bandwidth and select required readout units To swap delay time units enter zt Sub menu select Delay Time Distance and select required readout units Pressing an DIT key flashes corresponding channels routed to from that channel Jesi enbo iqdeJ 8 3ndui suonoes OF neurejed uye 11814 16 6 SGYWd AW SS2d UX9 O LIND SSeld u99Jos 3 neJop 1X9 UIDSD
59. outputs are marked on the rear panel Channels amp 2 use Output Channels 3 amp 4 use Output 3 Channels 5 amp 6 use Output 5 Channels 7 amp 8 use Output 7 4 Series Operators Manual Page 3l AES Diagnostics and Status Information Also under the ites 1 1 PEETLA is the EGELS inbeormation option which can be used to check the incoming sa and pa that the data is oe sie mah Pressing ENTER will first show HES WE LEE Va H This display shows the correct operation of the three AES transmitters V2 and V3 The letter after each is the silicon version and is of no importance to the user Pressing ENTER again will show p Deuce tabu U SIGE This display shows the status of the two AES receivers input A on the left and Input on the right The sample rate the unit has been able to lock to is shown or will be displayed its place The unit will lock to sample rates from 32kHz up to and including 192kHz The unit s own processing sample rate is 96kHz and AES output data is always at 96kHz Internal sample rate converters will translate all incoming rates to 96kHz one converter for each AES input This allows the two input streams to be at different rates if necessary Page 32 AAA 9oerTeo o ooe 4 Series Operator s Manual 5 wem 2 WO BIBIBIB BIBIBIBIBIBIBIB 4 P omua OO
60. pressed and access gain on first press then last viewed parameter on second press then exit on third press Output meters show dB from limiting The yellow LED illuminates at the onset of limiting The red LED illuminates at 4dB into limiting i e 4dB of gain reduction 4 Series Operators Manual Page 9 Rear Panel Connections Power witch turns the unit s mains supply off and on Mains Fuse located in a finger proof holder adjacent to the mains inlet A spare fuse is also located in this holder Mains Inlet connected via a standard IEC socket 85232 OUT RS485 RS232 RS232 standard via a 9 pin D type connector for connection to a PC Data is O converted to RS485 standard and relayed to slave units via the RS485 sockets RS485 In Out XLR sockets Used for transmission of remote control data over long distance or multiple unit applications See page 28 for more information For more details interfaces see our Interface Guide available from the website ION FOR CONTINUED PROTECTION AGAINST FIRE REPLACE OUTPUTS OUTPUT OUTPUT 6 OUTPUTS OUTPUTA OUTPUTS OUTPUT 2 OUTPUT 1 AES OUT 7 amp 8 cap OUT 585 AES OUT 3 amp 4 AES OUT 1 amp 2 NLY WITH SAME TYPE T1A 250V FUSE MADE IN THE UK BY XTA DO NOT EXPOSE TO RAIN OR MOISTURE WARNING THIS EQUIPMENT MUST BE EARTHED CAUTION S Audio Outputs 3 pin XLR sockets are provided for each channel All
61. r balanced outputs factory fitted only OPT PCI Type 512k SRAM PCMCIA card adaptor cable from PC to DP428 Converter has a range of tried and tested interfaces including USB and wireless solutions all of which are listed in the XTA Interface Guide available from our website We can supply all the interfaces described in this guide directly please get in touch 4 Series Operators Manual Page 51 Ox 01 OF Os Of 01 Index A Accessories 51 AES Diagnostics 32 AES Interface 31 AES Menu 23 Pass 47 Attack Times 39 B Bandpass 46 Base Delay 16 Clip Limiter 19 40 Cloning 36 Cold Reboot 36 Compact Flash 35 Crossover Menu 23 D Delay 16 Look Ahead 40 Digital In amp Out 31 D Max 40 E Editing Base Delay 16 Graphic EQ 16 High Pass Filter 18 Input Gain 16 Limiters 19 Low Pass Filter 18 Output Delay 17 Output Gain 17 Parametric EQ 16 18 Polarity 17 Elliptical Filter 49 F Features 8 Flat 45 Free Assign 15 Front Panel 9 Page 52 G Ganging Inputs 20 Ganging Outputs 20 Global Memory Menu 23 GQ600 37 Graphic EQ 16 37 Graphic Menu 23 47 High Pass Filter 18 I Input Gain 16 Input Section Menu 23 Interface RS232 26 RS485 29 USB 26 Interface Menu 23
62. still appreciable activity an octave on either side of 500Hz 250Hz and kHz B 111 12 W 40 50 63 100 125 160 200 250 315 400 500630 900 181825156 2k 3 15 dk 5k Bk 10k T2k5 15 0 Shape 5086 WV OF Global View Looking at the response when the p band is boosted to 8dB reveals 50 0881 Limi GpC Ina InB inc ind Gut Ow2 0 13 5 owe ou owe narrowing of the affected range of frequencies The narrowing of the bandwidth allows more precise control when trying to pinpoint and correct anomalies in the response 40 50 63 80 100 125 160 200 250 315 400 500630 800 Ik 1 251 amp 3015 dk Ge EK 10k 1245 16K wes c e uo W OK Global View 4 Series Operators Manual Page 37 Device 1 When the band is boosted to its Gaine Delay Limi Bp GpC Ina 168 inb 0 11 Ow2 013 Owa Qut Owe ou owe maximum value it can be seen that the response has become quite narrow This is useful when cutting bands for example to remove troublesome feedback resonances as it has less effect on the surrounding areas 3 341 40 50 63 EB 100 125 160 200 250 315 400 500630 Tk 1k25 zkb3klb dk 10k 12k5 16k was OK Global View The Special behaviour
63. t 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 and have an ampacity rating not less than the marked rating of the apparatus Page 6 e C 4 Series Operator s Manual Thanks Thank you for choosing an XTA 4 Series for your application Please spend a little time reading through this manual so that you obtain the best possible performance from the unit All XTA 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 XTA product please contact us We look forward to hearing from you in the near future Unpacking the unit 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 The Design House Vale Business P ark Worcester Road Stourport on Severn Worcs ngland E Tel 44 0 1299 879977 F ax 440 1299 8700060 THIS WAY UP Please think of our environment and don t bin any materials including this manual When the product has reached the end of its useful l
64. te so meters can set to work even when outputs muted Filter Q Banduidth Select the readout units for the Q setting of parametric filters Q is Bandwidth in octaves small values mean wide response variations Delay Time Distnce Select the readout units for all delay values either time or distance in feet or metres Unit Cloning Copy a unit s complete setup including memories and all menu options using a PCMCIA card See page 33 for more information on card types Load a new preset file from a PCMCIA card Clip LED Hold Time Select the time that the input CLIP LEDs stay illuminated for after an overload has passed set Date amp Time Adjust the real time clock settings SECLEITY Unit Locking Protect the unit against unauthorised access with a password please see page 33 for lt gt more details Contrast LED Brishtness Temperature Alarm Program Update HE EE Dutput Selection Switch the outputs of the unit to digital Inputs are selected via rear panel switch lt RES Status Info ate lock Page 23 Memory Structure As with the DP226 and DP224 the 4 Series have their memories split into sections allowing independent recall of crossover settings i e all parameters associated with outputs and input settings Additionally the graphic equaliser settings are stored in independent locations
65. then begin its countdown to the wake up procedure during which time the audio will fade up to the level last set Metering will begin to operate when the fade up starts Preliminary Set up The procedure below should be followed when first installing a 4 Series unit v Design your crossover To do this press MENU and use the BACK or NEXT key to select Lrossover 111 111 1111 and then press ENTER Use the BACK or NEXT key to select Design c crossover and then press ENTER Finally use the BACK or NEXT key to select the desired routing 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 EDIT 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 Use the EDIT keys on each input channel with the BACK and NEXT keys to select the gain delay and parametrics available on each input xta_ Note that if no action is taken in menu mode the unit will return to normal default mode after about twenty INCO 20 seconds Repeat the above directions to return to menu mode The wake up time countdown may be adjusted in the SYSTEM menu see page 23 for details 3 For details about adjusting the routing if one of the st
66. tion as well Recalling 8 or 0 will leave the current Graphic settings untouched Selection of Crossover memories only will additionally include locations and 6 in the list of memories available for recall as shown below In this way it is possible to recall part of a memory as long as it contains the memory type required CROSSOV R MEMORY MEMORY I CROSSOVER MEMORY MEMORY 5 MEMORY 6 MEMORY 7 MEMORY 8 MEMORY IO anD 4 Series Operators Manual CROSSOVER MEMORY CROSSOVER MEMORY MEMORY 6 MEMORY 8 MEMORY IO ye HIIS As only memory 8 and memory 0 have all 3 types stored these will be the only numbers available during a recall However consider the example where the type of recall is set to Input amp Crossover In this instance not only will the memory locations that have just Input and Crossover types stored be available but the locations 8 amp 0 will also be shown in the list INPUT MEMORY CROSSOVER MEMORY INPUT MEMORY CROSSOVER MEMORY INPUT MEMORY Note that storage and erasure of memories does not follow quite the same rules being simpler in its operation Selecting Input and Crossover during a Store will skip any memories that have other combinations in them Selecting Erase for any combination will show only locations that have EXACTLY that combination it is not possible to erase just one part of a combination memory The 4 Seri
67. to 4dB into limit Connectors Inputs 3 pin female XLR Outputs 3 pin male XLR External 9 pin DEE connector RS232 RS485 3 pin male XLR out 3 pin male XLR in Power 3 pin IEC Power 60 to 250V 15 50 60Hz Consumption lt 30 watts Weight 3 3kg Net 4 7kg Shipping Size 75 1U x I9 x 11 8 44 x 482 x 300mm excluding connectors Transformer options available Due to continuing product improvement the above specifications are subject to change Latency 5mS analogue in analogue out 96kHz Page 50 4 Series Operator s Manual Warrant This product is warranted against defects in components and workmanship only for a period of five years from the date of shipment to the end user During the warranty period XTA will at its discretion either repair or replace products that 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 warranty is exclusive and no other warranty is expressed or implied XTA is not liable for consequential damages xtd Options and Accessories Part Number Part Description ITX 428 Transformer balanced inputs factory fitted only OTX 428 Transforme
68. y pressing BYPASS to bypass the filter and then pressing ENTER during editing any particular band For more details about the various types of filter available please see page 42 121 Output 1 1112121412 4 GEE Frequency Q Gain 4 Note that 2 bands each will be lost when using 48dB slope crossover filters resulting in a maximum of 5 bands of EQ when both high and ow are set to Page 8 7 4 Series Operator s Manual Output Limiter The limiter on each output has adjustable attack and threshold with a release time that is selectable to be a multiplier of the attack time For example as shown below the attack time is 2mS and release is x16 so 32mS The attack and release times can be automatically linked to the high pass filter frequency so that they are set to correct values for the output s frequency range If this feature is enabled the display will show Automatic TL in place of the attack and Crossover ub Penu 1121 Dutputli Limiter Give FEl xI5 Attack Release Threshold Output D Max Clip Limiter The clip limiter on each output is designed to sit at a threshold just above the standard limiter and has a look ahead attack so that its threshold can never be exceeded The release time can be automatically linked to the high pass filter frequency so that it is set to a value appropriate for the output s frequency range If this

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