Home

Operators Manual Klark Teknik Building Walter Nash Road

1. W313 W 0105 1481 18 5 dis 91901 0105 Odanodl 0106 4 0 lt 0105 LNdLNO 73431 0105 K 0106 4 1 0105 LNdNI 9 YOLDANNOD D NOlLdO gt AYLNAD 14100 lt 1 1 avaa sna 3NOHdOtOIW 3D VE V L XL 4 T ANIOd LY3SNI lt 81414 5 2 9 3 8 ft t lt 9 pivaasng c NOLO 7 4 ALNIOd LY3SNI 7 15044 81414 EUN 158 QN3S 4 3991 3H1N3D OL p EN 1ndlno 4 1 YOLDINNOD 2 lt NOLO E 5 1431 LNdLNO XL avaa sng NOLO 7 i 1NIOd LY3SNI T OLYVIINIS SIZ LAdLNO amp Min T 1xnv 1504 3 7 1ndlno QI xnav ki aoa voca a 4 Otoda T 1719170 Auvnixnv of yi avaasna 65 THE MASTER MODULE THE METERBRIDGE OPTIONAL Meterbridges are available with either VU meters or LED Bargraph meters T
2. On the master module ensure that the monitor source button isin the UP position and that the MIX switch is pressed Push the master faders up to OdB calibration point and you will now see the microphone signal the left and right 5 6 output meters Increase the monitor level MUTE control and you will hear the microphone GRPS MONITOR 25 LEVEL 30 MIX 456 40 CENTRE 1 AN 7 9 MONITOR SOURCE T UE PHONES ON CS8 OPERATION MANUAL Beware of feedback if the loudspeakers and microphone are located close to one and other Plug headphones into the headphone socket located under the armrest and press the PHONES ON button on the master module You will now hear the signal on your headphones Try pressing the PFL button on the input module that you are using and note that you can see the microphone signal on the left meter This should now be independent of the channel fader setting and is known as the pre fade signal It can be used to check the input signal without it being routed or passed to any output UICKSTART SETUP POWER AMPLIFIER LOUDSPEAKER QUICKSTART 11 CS8 SPECIFICATIONS Nominal Operating Level 4dBu with a unity gain structure Frequency Response 20Hz 20kHz 47 0 5dB any input to any output at a gai
3. es 002060 OCG OT IH 8p0 0102 HOLIO3NNOO 3 TOdLETO IN T 4 gt SLNW T zu cc 455 ut aen 8131 2 5 9 20 Em 9n 22 ool apo c on IM Le at LNdNI UM TS YOLOSNNOD E NOLLdO 1 8 4 lt ei e HEJ offen BR m r E a 1331 noe T IT Ad NI 1451 37 THE STEREO INPUT MODULE THE GROUP OUTPUT MODULE 1 6 Group modules 1 through 6 contain an auxiliary master output and a matrix in addition to the group output stage Each matrix output can be derived from the 8 group outputs the left centre and right mixes and an external input All outputs may optionally be transformer balanced and or paralleled to a m
4. aNva 9 0 0102 LAdNI YOLDANNOD F1OdLLINW NOILdO t a dOu9 00520 gt 82122 LV 7 On 7 S778 Wud 3475 O CU od 1 122 aon SdNOYD OL LNIOd 1956 5 fepn ps HNNVHO zit 1N3S3ud TWNOIS Ct apo avaa 1 4 1ndLno 341A oe Re 4 Spor 55 m wav is 5 indio 121 699 Lol 2 Maro 4 99 oa 3 o mio Ea EIS 2 D 9 2 01 02093 58 OPERATION MANUAL 26 THE STEREO INPUT MODULE c T The stereo input module is designed to complement the mono input module The inputs can be at either microphone low level or line high level and selection is made by using the GAIN HI LO switch Normally four ster
5. illuminated for the 47 PSU STATUS 18V and 448V power rails If phantom power is required for your 8V microphone then ensure that the ON led is illuminated If not use a blunt non conductive instrument such as a pencil or pen to push the switch which is located under the panel 48 7 ON OO QUICKSTART 9 Press the 48V switch on the input module if phantom power is required Select the microphone input on channel 1 by having the HI LO switch in the UP position Turn up the input gain control channel 1 until 521227 the signal present led ison but not so high that the peak led is on when speaking into the microphone KIN SE NU ES 1 2 Place the channel 1 fader close to the 5 HI 6 calibration mark and press the routing button labelled MIX This will route the signal to the stereo output of the console MIX PAN OdB Calibration 10
6. m GROUP MATRIX GROUP SUMMING AMPLIFIER MATRIX SUMMING BUS PEAK AMPLIFIER 1 x AUXILIARY INSERT POINT MULTIPOLE CONNECTOR GROUP OUTPUT TKG n N XTERNAL METER AUXILIARIES 1 6 OUTPUT BUS TO METER PEAK MATRIX INSERT OINT Ur gt 01002022 MATRIX OUTPUT 1 MIX RIGHT MONO GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 GROUP 7 GROUP 8 AUXILIARY 1 AUXILIARY 2 V AUXILIARY 4 AUXILIARY 5 PEAK 1 AUXILIARY 6 AUXILIARY 7 AUXILIARY 8 AFL PFL gt GROUP FADER GROUP OUTPUT AUXILIARY 44 CS8 OPERATION MANUAL THE GROUP OUTPUT MODULE 7 8 M 8 ca n The final two output modules contain a Stereo Return in addition to the Group Output stage The group outputsare electronically balanced and may optionally be transformer balanced and or paralleled to a multiway connector An insert point is provided in the group signal path allowing the connection of external processing devices such as limiter compressor units The stereo returns allow line level stereo mono
7. 562 00mm 10 22 30 27mm 1 18 57 73mm 2 25 47 68mm 1 86 721 00mm 28 38 Meterbridge Widths VU 46 6 inches 1183 5mm This cannot be fitted to a 16 input console LED As per corresponding console width Weights packed Frame Size Console LED Meterbridge 16 26 4kg 58lbs 4 7kg 10 4lbs 24 36kg 80lbs 6 0kg 13 3lbs 32 45 6kg 100lbs 7 4kg 16 3lbs 40 55 2kg 122lbs 8 6kg 19 0lbs 48 64 8kg 143lbs 10 0kg 22 0lbs VU Meterbridge 6 5kg 14 5lbs These weights assume a fully fitted console Meterbridges are shipped in with the console packing but not mounted on the console Power Supply Weight packed 7 8kg 17 2Ibs Dimensions 20 Rack Mounting with a depth of 265mm 10 43 DIM ENSIONS AND WEIGHTS 13 THE INPUT MODULE ILLI d T M 8 The input module containsa high quality balanced input that is used for the microphone and line level input signals This stage is followed by a filter equalisation stage and insert point before the signal is passed through the fader to be routed to the various outputs of the console The equaliser can be used creatively to modify signals either because they contain unwanted soundsor because they need to be m
8. COMMUNICATIONS TALKBACK MIC A microphone may be plugged in to thissocket to provide talkback facilities to the output buses The microphone may be a dynamictype or using an internal link for phantom powering may be a condenser microphone 229 TB LEVEL 2 a This adjusts the level of the talkback microphone signal MONITOR AUX 1 3 D If 1 3 is pressed the talkback microphone or 7 oscillator signal is routed to the Auxiliary 1 2 and 3 buses AUX 4 6 PONES on If 4 6 15 pressed the talkback microphone or oscillator signal is routed to the Auxiliary 4 5 and 6 buses TB OSCILLATOR aUx AUX 7 8 1 3 If 7 8 is pressed the talkback microphone AUX oscillator signal isrouted to the Auxiliary 7 and us ES 8 buses AUX 7 8 LCR LCR MIX MIX If pressed the talkback or oscillator signal is crours routed to the L R and Mono centre buses TALKBACK GROUPS If pressed the talkback microphone or oscillator 4 1 Signal is routed to all the group outputs 68 ey TALKBACK Thisallowsthe talkback and oscillator signalsto passto the selected destination When pressed the monitor output of the console will dim by 10dB to reduce the possibility of feedback In normal operation only this switch would be pressed when talkback is required while the above routing
9. GAIN the adjustment is from 10dB to 420dB HI LO GAIN When pressed this inserts an attenuator into the signal path and alters the range of gain adjustment available This should be used when high level or line level signals are connected to the channel through the line input jack Note that if a jack is not inserted into the line input socket then the XLR connector may be used asthe line input REV Pressing this reverses the phase strictly the polarity of the input signal This may be useful if a microphone has a reversed output compared with other microphones in use or if a cable is swapping the polarity of the signal Under some circumstances the phase switch can also be used to reduce the spill between microphones although great care is needed to avoid degrading the required signal 80 2 This switch inserts an 80Hz highpass filter with a rolloff of 18dB per octave into circuit after the input amplifier This may be used to eliminate unwanted low frequency noises transmitted to the microphone through a floorstand for example THE MONO INPUT MODULE 15 EQUALISER HF 0 s 10KHz The equaliser on the input module is a four 5 1 5 6 band design incorporating two swept mid 19 12 12 range sections and fixed frequency shelving high and low frequency sections HF A high frequency equaliser providing 15dB of boost cut at 10 2 HI MID A swept middle frequency equaliser prov
10. 58 Operators Manual Klark Teknik Building Walter Nash Road Kidderminster Worcestershire DY11 7HJ Tel 44 0 1562 741515 Fax 44 0 1562 745371 Email info uk telex com Website www ddaconsoles com CS8 Operators Manual Telex Communications UK Limited In line with the company s policy of continual improvement specifications and function maybe subject to change without notice This Operator Manual was correct at the time of writing E amp OE CONTENTS INTRODUCTION eco cette tenets Aol enamel 4 CSB OVERVIEW eid ne idt pos ei cues EROR Raro aa 7 SAFETY PRECAUTIONS aa ior nr e obe ecce 8 YE 8 creed 9 C58 SPECIFICATIONS osc ie pt 12 OP 12 CS8 DIMENSIONS AND WEIGHTS eene een 13 THE MONO INPUT MODULE teo ed 14 CONNECTORS AND PIN 5 24 INPUT MODULE LINKS a ee Burr 25 CS8 MONO INPUT BLOCK DIAGRAM eene 26 THE STEREO INPUT MODULE roe E Eo RR 27 CONNECTORS AND PIN DEFINITIONS eene 35 STEREO INPUT MODULE UNKS iris eco eon rnnt Eier rtr 36 STEREO INPUT MODULE BLOCK DIAGRAM 37 THE GROUP OUTPUT MODULE 1 6 ttis mettre aat tea neca 38 CONNECTORS AND
11. The equaliser on the stereo input module isa four band design incorporating a swept lo mid section a swept hi mid section and fixed frequency shelving high and low frequency sections HF A high frequency equaliser providing 15dB of boost or cut at 10kHz HI MID A swept middle frequency equaliser providing 15dB of boost or cut The frequency is adjustable from 900Hz to 14kHz and the equaliser has a Q of 1 4 LO MID A swept middle frequency equaliser providing 15dB of boost or cut The frequency is adjustable from 80Hz to 1 5kHz and the equaliser has a Q of 1 4 LF A low frequency equaliser providing 15dB of boost or cut at 100Hz THE STEREO INPUT MODULE 29 30 AUXILIARIES There are eight auxiliary sends available on the console with the outputs located on the master module Auxiliaries 7 and 8 may be used asa stereo pair if required AUX 1 AUX 2 AUX 3 These control the level of the mono summed channel signal fed to Auxiliaries 1 2 and 3 PRE Allows the pre fade signals to be routed to the above auxiliaries AUX 4 AUX 5 AUX 6 These control the level of the mono summed channel signal fed to Auxiliaries 4 5 and 6 PRE Allowsthe pre fade signalsto be routed to the above auxiliaries AUX 7 This controls the level of the channel signal fed to Auxiliary 7 AUX 8 This controls the
12. may prefer a layout more akin to the actual physical layout of the microphones and other signal sources A WORD ABOUT CONNECTORS Two types of connector are used to interface the console to external signals Firstly XLR type connectors are used for the microphone inputs These connectors have a large contact area and therefore are very suitable for low level signals MALE XLR 3 FEMALE XLR 3 t 2 RS 1 21 PA 2 1 N o ACC N 5 222 It is perhaps worth mentioning at this point that there are two different conventions for the wiring of XLR connectors The international convention uses pin 2 as the hot pin while the older American convention uses pin 3 as the hot pin When going from balanced input to balanced output this is of little consequence but when unbalanced signals such as those found on the insert points are used then phase reversal can result The CS8 and all DDA products are wired PIN 2 HOT 1 4 inch TRS jacks are used for high level signals such as the line inputs and the stereo return inputs These jacks are used in 3 different ways 1 To carry a balanced signal the line input for example 2 To carry an unbalanced signal the direct output for example 3 To carry an unbalanced signal in and out through the same connector at the same time the insert point for example The TIP is used to send signal while the RING receives signal The sleeve is a common ground 74 CS8 OPERATION MANUA
13. AUX 3 Controls the level of the channel signal fed to Auxiliary 3 18 CS8 OPERATION MANUAL Changes the auxiliary 1 3 signals from being post fade to pre fade AUX 4 Controls the level of the channel signal fed to Auxiliary 4 AUX 5 Controls the level of the channel signal fed to Auxiliary 5 AUX 6 Controls the level of the channel signal fed to Auxiliary 6 PRE Changes the auxiliary 4 6 signals from being post fade to pre fade AUX 7 AUX 8 Controls the level of the channel signal fed to Auxiliary 7 PRE Changes the auxiliary 7 8 signals from being post fade to pre fade PRE DIR Changes the DIRECT OUTPUT signal from a post fader signal to a pre fader signal Normally the pre equaliser signal is used however a post equaliser signal may be link selected THE DIRECT OUTPUT Direct outputs can be used to feed effects devices or even the inputs to a multi track tape recorder The Direct Output can be selected to be pre or post fader by the PRE DIR switch Only the signal going through the module is available on the direct output and no mixing with signals from other channels can take place inside the console The Direct Output can be switched to the pre equaliser signal using the front panel mounted PRE DIR switch THE MONO INPUT MODULE 19 ROUTING AND STATUS ROUTING AND PANNING 26 1 2 Routing switches allow the signal to
14. Mute Connector 1 Ground 2 Mutelnput Grounding this pin mutes the channel 3 Mute Output This pin is grounded when the CUT switch is depressed THE STEREO INPUT MODULE 35 STEREO INPUT MODULE LINKS STEREO INPUT LINKS 3 amp 6 7 11 12 LINKS 17 18 21 22 LINKS 1 2 201 202 L STEREO INPUT MODULE PC1418 FITTED AS FUNCTION SUPPLIED NOTES AUXILIARY CUT ENABLE LEFT AUXILIARY CUT DISABLE LEFT PRE FADER MONO TO AUX 1 3 PRE EQ MONO TO AUX 1 3 PRE FADER MONO TO AUX 4 6 PRE EQ MONO TO AUX 4 6 INSTALL ONLY ONE LINK INSTALL ONLY ONE LINK INSTALL ONLY ONE LINK PRE EQ MONO TO ONE LINK AUX 7 8 PRE EQ LEFT TO AUX 7 8 PRE EQ RIGHT TO AUX 7 8 PRE FADER LEFT TO AUX 7 8 FIT ASA PAIR FIT ASA PAIR PRE FADER RIGHT TO AUX 7 8 AUXILIARY CUT ENABLE RIGHT INSTALL ONLY AUXILIARY CUT ONE LINK DISABLE RIGHT 36 CS8 OPERATION MANUAL PRE FADER MONO 7 8 INSTALL ONLY ES STEREO INPUT MODULE BLOCK DIAGRAM
15. PIN 5 42 GROUP MODULE 1 6 LINKS scene tenete ni rte crt 43 GROUP MODULE 1 6 BLOCK DIAGRAM 0 0 44 THE GROUP OUTPUT MODULE 7 8 iieri mat tiae 45 CONNECTORS AND PIN DEFINITIONS 51 GROUP MODULE 7 8 LINKS urere ttt ntt eter titer etre 52 GROUP MODULE 7 8 BLOCK DIAGRAM eee 53 THE MASIER MODULE deri d deis ede eiut 54 CONNECTORS AND PIN DEFINITIONS eene 61 MASTER MODULE crier tenuta kc ed tan 63 MASTER MODULE BLOCK DIAGRAM enne 65 THE OPTIONAL 66 HTING THE METERBRIDGE tete m emitte 67 BUS UNKING 68 MULTIPOLE CONNECTORS 69 THE POWER SUPPLE deitate et ent ea cdd eet 70 THE DLB600 AUTOSWITCHOVER UNIT 72 ec rens Ri c 73 A TECHNICAL ER QR ED cede HR 74 INSTALLATION GUIDE 79 GLOSSARY 81 DECLARATION OF CONFORMITY 22 86 WARRANTY 87 INDEX qe 88 The information in this manual has been carefully verified and is believed to be correct however EVI Pro Audio reserves the right
16. after some form of processing ROUTING The sending of a signal to a bus normally by pressing a switch Signal can be routed to several buses simultaneously if required SCRIBBLE STRIP An area of the console reserved for the user to write on usually in order to identify channel usage SEND The output from a channel insert point is called the insert send SHELVING EQ This means that the response of the equaliser becomes constant after the turnover or corner frequency has been passed Thus a high frequency shelving equaliser operating at 10kHz will have rising response asthe frequency approaches 10kHz but will be flat after This is normally used on the high and low frequency sections of an equaliser SIP Solo in Place This mode cuts all the input channels that are not soloed SLATE The ability to talk to tape from the operating position of the console SWEEP FREQUENCY A control which selects centre frequency to operate around M ost often used with peaking equalisers but it can also be used to determine the roll off point of shelving EQs as well TRS J ACK A Tip Ring Sleeve gauge jack VCA Voltage Controlled Amplifier An amplifier whose gain can be controlled by a DC Voltage applied to its control port WRITING STRIP See scribble strip 84 CS8 OPERATION MANUAL XLR The XLR in fact a specific manufacturer s model reference is an industry standard connector of high quality and is normall
17. appearsin phase on the amplifier output As the ground should be the reference for the following stage if it ismoving and the signal is moving in the same way then no net signal results GROUP OUTPUT Group outputs can be used to feed loudspeaker clusters or a multitrack tape machine They can also be sub mixed to the main stereo busin the console making it easier to control large numbers of inputs HF High Frequency HIGH PASS FILTER HPF A filter which cuts out frequencies below its operating frequency It can be used to filter out rumble picked up by a microphone for example INSERT POINT Sometimes referred to as a patch point This is an interruption to the signal path to allow for the insertion of a signal processing device INTERMISSION PLAYBACK This allows a signal to be played out from the master outputs of the console with the master faders closed thus preventing stage microphones or other signal sources from reaching the master outputs LF Low Frequency LINE INPUT An input designed to accept high level signals as opposed to microphone level signals LOW PASS FILTER LPF This is the inverse of a HIGH PASS filter and is used to reduce frequencies above the operating frequency 82 CS8 OPERATION MANUAL MASTER This normally refers to the main stereo output section of a console which controls the level of the stereo mix and associated functions such as monitoring PARAMETRIC EQ An equaliser section which
18. are several points to note as follows 0 Volts Audio Ground 15 not externally available on the console Pin 1 of all XLR style connectors is connected to chassis The sleeve of all jack connectors is connected to chassis The chassis ground iseffectively forming continous shield covering the electronics and the cable carrying the signal between them The power supply hasa ground lift switch located on the rear panel which can be used in the event of grounding problems When this switch is operated the console chassis is removed from the mains ground and connected to OV Audio The console chassis is then no longer connected to mains earth POWER SUPPLY CONSOLE POWER AMPLIFIER 0 418V A 18V PIN 1j INPUT 1 4 AN INPUT al eee 29 Ps ov t pow E g b Y PIN 1 PIN 1 F4 GROUND OUTPUT 1 V GROUND STUD POWER COMPANY GROUND POWER COMPANY GROUND CS8 GROUNDING 73 A TECHNICAL PRIMER Before any console is switched on many decisions will have been made with regard to what channels the signal sources will appear on and in fact this may even have influenced the build of the console Some operators favour all the microphonesto the left side of the console with other sources to the right while other people
19. full range electronically controlled loudspeakers with subwoofers and is designed for music reproduction The left right system may be either permanently installed or made portable so that it can be wheeled in and configured as necessary The diagram overleaf shows how such a system would typically be connected to be controlled from the CS8 console Separate master equalisers are provided for each of the three channels and the center cluster employs an electronic crossover while the left right system uses dedicated controllers The input side of the block diagram merely shows a few possible sources the actual complement of inputs would be dictated by the usage of the hall As illustrated a podium override function may be provided by connecting a podium mounted SPST switch to a simple isolation interface a relay for example grounding the Cut In terminals on the CS8 Remote Mute connectors to mute all channels other than the podium microphone Left Right Podium lan Center L eating INTRODUCTION 5 The CS8 console provides wealth of possibilities for this application As an example where budget permits a surround speaker system may be installed and the outputs of A V equipment routed through a surround decoder then into four CS8 inputs By setting up the console groups as LCRS respectively dramatic and convincing segues between live and pre recorded surround material could be made 2 X MH640C Podi
20. giving the pre fade post mute signal If link 11 is removed and link 12 installed the signal becomes the pre equaliser signal If stereo operation is selected then links 21 and 22 are normally installed giving the pre fader post mute signals If links 17 and 18 are installed in place of links 21 and 22 then the pre equaliser signals are used THE STEREO INPUT MODULE 31 ROUTING AND STATUS 1 8 1 0 gt 1 These switches route the mono post fader signal to the groups 5 44 cil Routesthe mono post fader signal to the mono 7 Eg centre bus MIX Routes the post fade post balance channel signal to the stereo mix bus me Bre vB s STER 176 SOURCE This assigns the post BALANCE stereo signal to the groups odd an even group should used Left panned signal will go to odd 4 224 groups while right panned signals will go to ae even groups L I P SOURCE This cuts the RIGHT input signal replacing it with the LEFT input signal Thus the module carries the left input signal only through the sereo signal path R I P SOURCE This cuts the LEFT input signal replacing it with the RIGHT input signal Thus the module carries the right input signal o
21. has variable frequency level and Q PAN A pan control or Pan Pot or Panoramic Potentiometer is used to spread a mono signal across multiple buses PEAKING EQ In this form of equaliser the response is tailored to enhance a selected frequency relative to the frequencies above and below it Peaking equalisers are normally used as the mid sections of an equaliser Also known as bell shaped or swept PFL Pre Fade Listen For listening to pre fade signals PINK NOISE A random sound with equal energy per octave of bandwidth It is often used to equalise sound systems POST FADER A signal derived after a fader and therefore dependant upon the position of the fader PRE FADER A signal derived before a fader and therefore not dependant upon the position of the fader Q Associated with peaking equalisers the Q is the factor which describes how wide the peak or trough of enhancement is The smaller the Q the wider the bandwidth of the equaliser will be Typically a fixed Q equaliser will have a Q of about 1 5 equating to a bandwidth of about 1 octave QUASI BALANCED An arrangement whereby a bus is terminated with a differential input The bushowever isnot truly balanced instead a bus common is used to pick up any interference which will also be picked up by the true bus The interference then appears as a common mode signal at the mixing amplifier GLOSSARY 83 RETURN Any signal that is sent out of the console and is returned
22. left and centre or right and centre BAL This adjusts the relative levels of signal sent to the left and right outputs or the left centre and right outputs depending upon the selected pan mode when MIX is pressed MUTE This mutes the group the MUTE condition is 20 indicated by an led 25 30 FADER 40 The fader controls the level of the group output As with the input module fader operation close to the OGB calibration point is expected and any large deviation from this would indicate that the signal from the modules feeding the group are too high or too low GROUP OUTPUT MODULES 7 8 49 AFL Allowsthe post fader pre mute group signal to be soloed Thusthe AFL level indicated on the solo meter will depend upon the group fader but not on the MUTE switch There is a pre fader group insert point allowing an effect unit or similar to be introduced into the signal path 50 CS8 OPERATION MANUAL Spex C JJ INSERT SEY GROUP 7 7 2 EN 4 3 L MONO 222 8 lt 2 STEREO 1 E SN SESS JJ RIGHT THE SN 2 2 GROUP OUTPUT MODULES 7 8 CONNECTORS AND PIN DEFINITIONS Group Output 3 Pin Male XLR Type Balanced Nominal Output Level 4dBu Pin 2 Signal ve Hot Pin 3 Signal ve Cold Pin 1 Ground Output Impedan
23. level of the channel signal fed to Auxiliary 8 PRE Allows the pre fade signals to be routed to the above auxiliaries STER Auxiliaries 7 and 8 can be used asa stereo pair by depressing this switch Depending upon the PRE switch either the stereo post fader or the stereo pre fader signals will be used CS8 OPERATION MANUAL The auxiliaries can be used to create additional mixes and in many cases these mixes will be sent to an effects device such as a reverberation unit Another major use of the auxiliariesisproviding foldback to artists in order that they can hear other performers or a backing track Sometimes stereo foldback is preferred and auxiliaries 7 and 8 can be configured for stereo use It is even possible to send stereo foldback from the mono inputs by adjusting the levels sent to auxiliaries 7 and 8 When the levelsare equal the image will appear central but by reducing the left output auxiliary 7 the image will appear to move to the right and of course when the right output is reduced auxiliary 8 the image will appear to move to the left hand side AUXILIARY LINKING 1 3 Link 3 is normally installed giving the pre fade post mute signal If link 3 is removed and link 4 installed the signal becomes the pre equaliser signal 4 6 Link 6 is normally installed giving the pre fade post mute signal If link 6 is removed and link 7 installed the signal becomes the pre equaliser signal 7 8 Link 11 is normally installed
24. non recommended parts or incorrectly made In no circumstances shall DDA be liable for any indirect or consequential costs damagesor losses including loss of business profits operating time or otherwise arising out of the use or inability to use the product whether or not the likelihood of damage was advised to DDA or its distributor Fuses and filament lamps are specifically exduded from this warranty This notice does not affect your statutory rights WARRANTY 87 Index SYMBOLS 48 10 15 28 56 10DBV 54 ODB 22 33 48 ODBU 54 A ACBL14 103 72 AFL 39 40 41 50 54 55 59 81 ATTENUATOR 15 AUXILIARIES 30 MASTER 39 MASTER LEVEL CONTROL 18 OUTPUTS 18 SENDS 81 B BAL 32 48 49 BALANCED INPUT 14 BARGRAPH METERS 66 BUS 81 BUS PEAK 39 46 BUS PEAK LEDS 55 D DAT 54 DIRECT OUTPUT 14 19 81 E EQ 12 16 29 82 EQUALISER 14 16 29 46 HI MID 16 29 HIGH FREQUENCY 16 29 LO MID 16 29 LOW FREQUENCY 16 29 EXT 40 F FADER 23 34 41 48 49 60 FILTER HIGHPASS 15 28 82 LOW PASS 82 FOLDBACK 31 G GAIN 23 28 46 GAIN CONTROL 15 GROUP OUTPUT 82 GROUP MATRIX 39 GROUPS 58 88 H HEADPHONES 11 60 HF 46 82 HI LO GAIN 15 28 INPUT GAIN 10 INPUT SOLO 59 INSERT POINT 16 82 INTERMISSION PLAYBACK 82 JACK INNER CONNECTIONS 75 L LCR 5 14 20 58 LED 66 LEVEL 55 LF 46 82 LINE INPUT 82 LINE LEVEL INPUT 14 LINKED OPERATION 68 M MASTER MODULE
25. put Ideally a cool area is preferred which is not in close proximity to power distribution equipment or other potential sources of interference Provision should be made for some flat surface surrounding the console to prevent people using it as a table top One of the worst fates that can befall a console is for a cup of coffee to be tipped into it by someone resting it on the control surface POWER The power supply should be located as far from the console asthe connecting cable will allow It should be set for the appropriate line voltage and plugged into the mains outlet using the supplied cable WIRING The console uses four different connector styles SLEEVE 1 4 INCH TRS GAUGE J ACK PLUG RING TIP TIP CONNECTION RING CONNECTION SLEEVE CONNECTION AND CABLE CLAMP MALE XLR 3 FEMALE XLR 3 2 PHONO SOCKETS P N 7224 NN X N f NN 1 2 2 1 o O I pd 3 ar 3 Y 8 ou p NS PHONO PLUG TRS jack sockets XLR male connectors XLR female connectors phono connectors The cables used should be of as high a quality as possible Many installation problems can be traced back to poor or faulty cables and connectors INSTALLATION GUIDE 79 As mentioned before there are two different conventions for the wiring of XLR connectors The international convention
26. signal is split across a stereo bus some compromise is involved regarding the levels sent to the buses for the following reasons Two identical signals when combined electrically will double in amplitude which isan increase of 6dB If the signalsare fed through a stereo loudspeaker system then the acoustic summing and perceived effect is that the signal amplitude has increased by 3dB There is thus a 3dB difference between the two summing mechanisms For a console optimised for sound reinforcement the pan pot should be 3dB down in the centre position while for broadcasting where peak levels are important due to transmitter and land line overloading the pan pot should be 6dB down 4 5dB isoften chosen because it is halfway between the extremes An error of 1 5dB is acceptable in most situations Splitting the signal across an LCR bus is similar as only two of the buses are active at any time If the signal is centrally panned then only the centre mono output is active The CS8 pan pots are 3dB down in the centre position relative to fully left and right panned signal levels 78 CS8 OPERATION MANUAL INSTALLATION GUIDE There are a number of points to consider when installing a mixing console Many of these points will have been addressed before the console is even unpacked but it is worth repeating them again POSITION The console should be located in a convenient commensurate with the use to which the console is being
27. switches would be left assigned to the required destinations Note that the switch is latching and must be pressed again to release it 58 CS8 OPERATION MANUAL SOLO AFL PFL SIP Selection of any AFL or PFL solo signal will override the monitor selection leaving the console output unaffected SIP operates differently and will affect the main outputs of the console ere SOLO LEVEL This control adjusts the audio level of a 58 22 soloed PFL AFL signal This will not affect 5 5 the solo meter reading It can be used to match the audio level of the solo to that of the mix OUTPUT 1 INPUT SOLO This led will indicate when solo PFL has been selected on an input to the console OUTPUT SOLO This led will indicate when a solo AFL has been selected on an auxiliary matrix or group output Priority is given to an input solo If an output solo is active and an input solo is then activated the output solo will be muted for the duration of the input solo SOLO IN PLACE Solo In Place is a spedal mode where the monitor system does not switch over to listen to the solo bus For SIP mode to operate the monitor selection must be set to MIX The monitor system remains listening to the mix outputs and when a solo on an input module is requested a signal is sent back from the master module to MUTE ALL OTHER INPUT M ODULES Thus only the channel s with the sol
28. the signal is post fade and mono AUX 6 This adjusts the signal level to auxiliary 6 Normally the signal is post fade and mono AUX 7 This adjusts the signal level to auxiliary 7 Normally the signal is post fade and mono AUX 8 This adjusts the signal level to auxiliary 8 Normally the signal is post fade and mono PRE This selects the pre fade signal to be sent to the auxiliariesin place of the post fade signal STEREO Thisselectsthe stereo pre or post fade signal to be sent to auxiliaries 7 and 8 in place of the mono pre or post fade signals GROUP OUTPUT MODULES 7 8 47 BAL This adjusts the relative signal levels sent to the left and right groups within the range 3dB to OFF At the centre detented position equal levels will be sent to the left and right outputs MUTE This mutes the STEREO RETURN signal An led indicates the MUTE condition PK This led light emitting diode illuminates when the return signal isapproaching clipping level OdB Indicates when the pre fade stereo return signal is at or above SIG This led shows when signal is present in the stereo return In each case a single led is used
29. to indicate the higher of the left and right signals MONO Routesthe return signal to the mono or centre mix The left and right signals are combined to mono for this MIX Routes the return signal to the L R stereo mix FADER This is the level control for the return signal and adjusts the amount of level sent to the routed outputs 1 2 3 4 5 6 7 8 Routes the return signal to groups 1 and 2 or 3 4 5 6 7 8 PFL This allows the pre fade auxiliary return signal to be soloed The solo is pre fader and therefore will not depend on the position of the stereo input fader 48 CS8 OPERATION MANUAL THE GROUP OUTPUT SECTION This section is identical to the group output section on the first 6 output modules MONO This feeds the post fade group signal to the mono or centre bus of the console when pressed In LCR mode the centre output of the pan pot will be replaced by the post fader signal if this switch is pressed In L R mode the centre output will not receive a signal until this switch is pressed MIX When is pressed the group signal is sent to the stereo mix The pan control switched to LCR mode and the centre bus will then be fed with the centre output of the pan AFL pot without the MONO button being pressed SIS L R L C R This changes the pan pot from L R mode to LCR mode where the signal will pan between
30. to pin 1 of any XLR connectors or to the jack sleeves or to the metalwork etc The results of this test are far from subtle with 30 50db reductionsin signal to noise ratio quite commonly observed The scary thing is that this can actually represent a real world situation unlike a simple bench test measurement of noise which is usually taken in an idealised situation A well designed and implemented internal grounding method asfound in the CS8 should ensure that there is negligible effect on performance DECIBELS dBs Many signal levels are quoted in dBs as this relates more to the perceived effect of the signals OdBm relates to a power level of into 600 ohms giving 0 775 Volt Normally 600 ohm impedances are not used and dBu are quoted meaning 0 775 Volt independent of impedance dBV are encountered more and more frequently and they are referenced to 1V Thusthere isa difference of 2 2dB between OdBu and OdBV When dBs used without a suffix it simply meansthat they are a ratio of two readings and the absolute measurement is not important Thusthe ratiosin dBu sor dBV s are the same but absolute measurements are made to different reference levels Many products operate at 4dBu while many newer semi professional products including some 1 inch multi track tape machines operate at 10dBV This leads to approximately 12dB difference between signal levels as 10dBV equates to 7 8dBu A TECHNICAL PRIMER 77 PANNING When a
31. two Auxiliary master outputs the monitoring section and a talkback microphone input In addition two rear mounted 4 pin XLRconnectorsare provided for LITTLITES which can be used if the console isto be operated under low or poor lighting conditions maximum power 5 Watts at 12V Pre fader insert points are provided in the left right and centre output signal paths Plugging in a jack automatically breaks the normal signal path to insert the external equipment The Stereo Mix Group and Auxiliary outputs have a nominal operating level of OdBu and can be transformer balanced Left Centre and Right monitoring is possible on loudspeakers while the headphone output is stereo only The three bargraph meters follow the output of the stereo mix under normal operating conditions If a PFL or AFL button is pressed the left meter shows the level of the soloed signal There is also an unbalanced stereo output on phono connectors taken from before the mix insert send points which can be used to feed a tape recorder or DAT machine The nominal operating level is TOdBV This allows the feed to the tape recorder to remain unaffected by any device connected to the master module insert points and to be independent of the master faders The centre or mono output of the console is fed equally to the left and right tape outputs CS8 OPERATION MANUAL METERS AND AUXILIARIES METERS The three peak reading m meters indi
32. uses pin 2 as the hot pin while the older American convention uses pin 3 as the hot pin When going from balanced input to balanced output this is of little consequence but when unbalanced signals such as those found on the insert points are used then phase reversal can result The CS8 and all DDA products are wired PIN 2 HOT ATTENTION CABLES This product should only be used with high quality screened twisted pair audio cables terminated with metal bodied 3 pin XLR connectors The cable shield should be connected to Pin 1 Any other cable type or configuration for the audio signals may result in degraded performance due to electromagnetic interference ELECTRIC FIELDS Should this product be used in an electromagnetic field that is amplitude modulated by an audio frequency signal 20Hz 20 2 the signal to noise ratio may be degraded Degradation of up to 60dB at a frequency corresponding to the modulation signal may be experienced under extreme conditions 3V m 90 modulation No permanent damage or degradation of performance will be caused by these conditions 80 CS8 OPERATION MANUAL GLOSSA RY This section provides a simple explanation of some of the terms used when describing the console features GAUGE JACK This isa 1 4 jack which has a large tip diameter compared with a B gauge jack which hasa smaller diameter tip and is usually found in broadcast use Both types could be described as TRS Tip Ring S
33. 54 MATRIX 38 METER 39 46 METERS 55 MIX 10 20 27 32 41 49 57 58 MONITOR SOURCE 57 MONO 20 32 41 48 49 MUTE 22 23 33 40 41 48 49 60 MUTE GROUPS 23 34 60 O OSCILLATOR 56 PINK NOISE 56 83 SINE WAVE 56 OUTPUT SOLO 59 P PAN 21 41 PAN CONTROL 20 PFL 22 33 48 54 59 83 PHANTOM POWER 9 PHASE 15 28 PK 22 33 POLARITY 15 28 POST FADER 83 PRE FADER 83 58 OPERATION MANUAL Q Q 16 29 83 R ROUTING AND PANNING 20 S SAFE 23 34 SCRIBBLE STRIP 55 SIG 22 33 48 SIP 59 84 95 4 7 14 20 21 41 49 SOLO IN PLACE 59 SOLO LEVEL 59 SOLO IN PLACE 22 SPECIFICATIONS CHANNEL FADER ATTENUATION 12 CHANNEL MUTE ATTENUATION 12 CHANNEL ROUTING ATTENUATION 12 DISTORTION 12 EIN 12 MAXIMUM INPUT LEVEL 12 MAXIMUM OUTPUT LEVEL 12 NOISE 12 NOMINAL OPERATING LEVEL 12 OUTPUT IMPEDANCE 12 POWER CONSUMPTION 12 STER 32 STEREO 27 31 STEREO INPUT MODULE 27 STEREO MIX 54 STEREO RETURN 45 46 T TALKBACK 58 TAPE LEVEL 56 V VU 66 89
34. Hz 0 6 TS 6 9 9 THE METER SECTION METER This meter indicates the level of the group output It has a Peak reading characteristic BUS PEAK This indicates when the group summing amplifier isin danger of running into distortion The signals routed to the group should be reduced in level by pulling their faders down or reducing the input gain of the routed channels STEREO RETURN This is a high line level stereo input that can be routed to the left right and mono mixes the group buses and auxiliaries 5 6 7 and 8 of the console It could be used to bring a stereo tape machine into the console or the output of an effect device whether stereo or mono The input of the effect device would normally be fed from an auxiliary output of the console Note that if a mono signal is connected to the left input and nothing is plugged into the right input the signal will be sent to the left and right signal paths This saves a special cable having to be made for use with mono signal sources If a mono input is connected to the right input then only the right signal path will receive this signal GAIN Adjusts the input gain of the effect return EQUALISER HF A high frequency equaliser with 15dB of boost and cut and at 10 2 LF A low frequency equaliser with 15dB of boost and cut at 100 2 CS8 OPERATION MANUAL AUXILIARIES AUX 5 This adjusts the signal level to auxiliary 5 Normally
35. L SLEEVE RING TIP 1 4 INCH TRS GAUGE J ACK PLUG A technique known as or innering can be used to carry signal through jacks which have no plugs inserted The jack socket is equipped with spring terminals making contact with the tip ring and sleeve connectionsuntil a plug isinserted Signal wired to these sprung connections will normally connect to the tip ring and sleeve connectionsand an example of thisiswherethe auxiliary left input is also used as a mono input by wiring it through to the right input connector TIP CONNECTION RING CONNECTION SLEEVE CONNECTION AND CABLE CLAMP Thus a mono input signal isfed to both left and right signal paths If a stereo input is required then the insertion of a jack plug into the right jack cuts off the signal from the left jack letting the right and left signals go the appropriate signal paths Another example isthe insert jack wherethe tip and ring inner connectionsare wired together When the insert point is not in use signal fed to the tip is returned to the ring through the normalled connection then to proceed through the remainder of the module A TECHNICAL PRIM ER 75 BALANCED OR UNBALANCED Relating to ahome stereo system unbalanced operation isthe norm with the ground being used as the signal return path This can be prone to interference especially with the longer cable lengths used i
36. TER MODULE 55 OSCILLATOR PINK 1KHz LEXEL 5 ON 6 3 72 EN 7 2 4 8 9 PSU STATUS 18 18 48 These 3 leds indicate the presence of the two power rails and the phantom voltage supply 48V ON This recessed switch enables the phantom power supply NPUT 2 across console OSCILLATOR B PINK 1K This selects either the 1kHz sine wave oscillator or pink noise source ON This enables the oscillator and the pink noise source LEVEL This adjusts the amplitude of the oscillator and pink noise source TAPE INPUT TAPE LEVEL This controls the level of the stereo tape input signal from the rear panel phono connectors when selected by the following switches to feed the left right or mono outputs of the console L R The feeds the tape return signal onto the master left and right outputs of the console Note that this feed is injected after the master faders and the level is adjusted by the TAPE LEVEL control MONO This feeds the tape return signal onto the mono or centre output of the console Note that this feed is injected after the master faders and the level is adjusted by the TAPE LEVEL control The above may be referred to as an intermission playback facility It allows a tape or other external source to be played through the main console output
37. W 1508 E NS CSS ix Rie gt ESm mem mS 5 25 LNdNI 15 um Nt ONON EZB Andino T x 3 YOLDSNNOD 31041100 Nono Mo 9 nm Ph INdLNO NOUdOXE o s _ lt INIOd 14504 S wes UE 1 ks ano Xi 1 15 pos ONOW LHS A381 GROUP OUTPUT MODULES 7 8 THE MASTER MODULE RIGHT BUS PEAK LO AUX MASTER 456 5010 20 C MONO 120 AUX MASTER 456 i o 10 PSU 5 TAPE 1 TATUS OSCILLATOR PINK 1KHz NPUT L R MONO TAPE LEVEL 5 2455 2G ye e 6 g 2 18 M s MONITOR 456 E 2 WSs o io PHONES ON t OSCILLATOR MUTE GROUPS 1 2 xti 147 3 A xi LEFT CENTRE RIGHT MONO bio hs The Master module containsthe main stereo and centre outputs
38. Y 1 TRANSFORMER BYPASS LEFT MIX TRANSFORMER BYPASS LEFT MIX TRANSFORMER BYPASS RIGHT MIX 5 TRANSFORMER BYPASS t TRANSFORMER BYPASS CENTRE MIX TRANSFORMER BYPASS CENTRE MIX TRANSFORMER BYPASS ENABLE THE MASTER MODULE ES ES ES ES ES ES ES ES YES REM OVE WHEN FITTING AN OUTUT TRANSFORMER REM OVE WHEN FITTING AN OUTUT TRANSFORMER REM OVE WHEN FITTING AN OUTUT TRANSFORMER REM OVE WHEN FITTING AN OUTUT TRANSFORMER REM OVE WHEN METERBRIDGE IS FITTED 63 css COMMS MASTER LINK 1 LINKS 2 3 COMMS MODULE PC1397 FITTED AS FUNCTION SUPPLIED NOTES at EN MICROPHONE PHANTOM POWER AUXILIARY 2 TRANSFORM ER BYPASS TRANSFORM ERS AUXILIARY 2 2 TRANSFORMER YES BYPASS REM OVE WHEN FITTING OUTPUT The above links will not normally require alteration unless the console is reconfigured 64 CS8 OPERATION MANUAL MASTER MODULE BLOCK DIAGRAM 2 YOLINOW 1V2O1 Y YOLINOW 19201 TYOLINOW 19201
39. alanced Balanced Source Unbalanced Differential Source Balanced Unbalanced Destination 1 Balanced Balanced Source Balanced Differential Destination 2 Differential Unbalanced Source 3 Differential Balanced Source Differential Differential Source 1 The shield is connected to the destination earth point which is the opposite of normal practice because the signal wires being shielded are referenced to the input earth not the output earth 76 CS8 OPERATION MANUAL 2 If the output transformer is centre tapped to earth the screen should be connected at the source 3 When an active differential output is operated in unbalanced mode it is very important that the output current returns to earth via the shortest least reactive route Check for instability at the output A simple test to show the vulnerability of any piece of equipment to earth currents has been proposed by John Windt in the June 1995 issue of the Journal of the Audio Engineering Society The test consists of passing a peak AC current of 100mA through the ground system of a piece of equipment and measuring the degradation in signal to noise ratio In its simplest form this would be at 50 60Hz although a more elaborate test could consist of a wide band frequency sweep from 20Hz to 200kHz as suggested by Cal Perkins in the same issue of the AES Journal Of course there are many different ground paths possible so it is necessary to try as many as possible such aspin 1
40. atched more closely to other sounds in the overall balance A direct output is provided on every input module which can be used as a send to an FX device as a send to a multitrack tape recorder where there are insufficient group outputs on the console SIS EXPLAINED Conventional left right panning movesthe signal across the stereo image from left to right SIS or LCR panning movesthe signal between left and centre with no right output and then from centre to right with no left output A signal panned centrally will only appear on the centre output Using LCR panning gives a more spatial effect offers more control over vocal and effect positioning and really brings performances to life Soloists are typically mixed to the centre channel while back up vocals an orchestra or a band can be wrapped around the soloist in stereo or panned across the three channels CS8 OPERATION MANUAL THE INPUT SECTION 48V Provides 48 volt phantom power for a condenser 8 microphone D I box The 48 ON switch the master module must be ON for phantom power to operate Optional balancing transformers may be fitted on the Mic Line TaN input 20 GAIN CONTROL z The gain control is a wide range rotary LO potentiometer which is active both Mic and um Line Inputs With HI GAIN selected the gain can be adjusted from 20dB to 70dB while for LO
41. auxiliary signal path This allows the effect to be auditioned using the AFL button and keeps the noise from the effect unit proportional to the signal level Thus if the auxiliary level is reduced the noise from the effect unit will also be reduced GROUP OUTPUT MODULES 1 6 39 CENTRE 40 MATRIX 5 4 29 0 10 456 THE MATRIX SECTION EXT This adjusts the level of the external input into thischannel s matrix output The external input is a line or high level input 1 8 This adjusts the level of groups 1 8 into this channel s matrix output LEFT This adjusts the level of left mix into this channel s matrix output RIGHT This adjusts the level of the right mix into this channel s matrix output CENTRE This adjusts the level of the centre mix into this channel s matrix output MUTE This mutes the matrix output LEVEL This adjuststhe level of the matrix output The matrix output isthe sum of all the above inputs AFL This allows the matrix send to be checked by switching it through to the monitoring system The matrix output can then be heard and its level observed on the master meters There isa prefader matrix insert point allowing effctsunitsto be inserted into the matrix signal path This allows the effect to be auditioned using the AFL button and keepsthe noise from the effect unit proportional to the signal level Thus if the auxiliary level is reduced the noise from the
42. be sent to the various console outputs In addition to the 5 4 groups it is possible to send to the L R stereo mix bus and the Centre mono bus LI The pan control allows a mono signal to be panned or spread acrossa pair of groupsor the MONO stereo mix creating a stereo signal froma mono one The pan control effectively splitsthe signal into left and right components with their amplitudes depending upon the rotation of the control In the centre position equal levels will be sent to both left and right or odd and even groups If panned hard left then the left signal will be 3dB higher than with the pan control in the centre position while there will be no signal on the right side This situation is reversed with a hard right pan SPATIAL IMAGING SYSTEM In addition to the Left and Right buses there is a Centre bus which can be used asa stand alone mono busor for panning to when the 95 button is depressed The CS8 has three loudspeaker outputs allowing true LCR monitoring of the three main console outputs The 915 brochure available through your dealer fully explains the SIS concepts 1 8 These switches route the post fader signal to the groups When panning to the groupsand odd an even group must be used asthe stereo pair MONO Routes the post fader signal to the mono or centre bus In L R pa
43. cable loom thus placing the multipole connector input in parallel with the original input or output The multipole connectors are fitted by removing the existing blanking plates on the rear of the console frame and replacing them with the connector panels MULTIPOLE CONNECTORS 69 THE POWER SUPPLY The PSI2860 power supply for the console is a free standing fan cooled unit operating within the voltage range 90 240V 9 50 60Hz The unit may also be rack mounted although care should be taken that the transformer does not cause interference with other rack mounted equipment The outputs are rated as follows 18V at 6 0 Amps maximum 48V at 350mA maximum DC Pinout 1 Not connected 2 18 Volts 3 18 Volts 4 0 Volts 5 48 Volts 6 Chassis The 512860 power supply is tested in accordance with IEC65 5th edition 1985 amendment number 1 EM KO TUE 12B SEC 205 91 Always connect the power supply to the console and the electricity supply before switching on Fusing 240 230 220 5 02 0006 T3 15A 120 100 90V CSM 02 0007 T6 3A REFER SERVICE AND REPAIR TO A QUALIFIED AND COMPETENT PERSON OR DEALER WARNING THIS SUPPLY MUST BE EARTHED 70 CS8 OPERATION MANUAL MAINS VOLTAGE SELECTION Mains voltage selection for the power supply should be carried out according to the diagram below Do not adjust these settings with the power supply connected to the electricity supply The switches are located under
44. cate the levels of Q 120 120 the left centre mono and ug OG 49572 right outputs of the console eee e The left meter is additionally O used to indicate solo levelsin 0 0O which case the remaining 3 O 3 two meters will not indicate 6 6 O we BUS PEAK LEDS ADE There are three leds to 15 0 150 indicate that the left centre 250 and right bus summing O 210 21 0 amplifiers are approaching M D T dipping Any indication here PS REE Dec COL cuo will mean that the level from the input modules the groups if sub mixed into the w w main outputs or the sereo 22 inputsistoo high and should be reduced avoid 5 distortion AUX MASTER SECTION LEVEL These controls adjust the output levels for Auxiliaries land 2 AFL This allows the auxiliary signal to be previewed The post fade auxiliary signal isused and therefore it isdependent on the position of the output level control There isa pre fader auxiliary insert point allowing the introduction of an effect unit or similar into the auxiliary signal path A scribble strip is provided for identification The auxiliary outputs may optionally be transformer balanced and or fed to multipole connectors THE MAS
45. ce lt 5 Ohm Stereo Inputs TRS Jack Socket A Gauge Balanced Nominal Input Level OdBu Tip Signal ve Hot Ring Signal ve Cold Sleeve Ground Input Impedance gt 1 Insert Points TRS Jack Socket A Gauge Unbalanced Nominal Input Level OdBu Tip Insert Send Ring Insert Return Sleeve Ground Output Impedance lt 75 Ohm Input Impedance gt 10 kOhm 51 GROUP MODULE 7 8 LINKS CS8 GROUP FX OUTPUT E LINKS 1 2 LINKS 7 8 LINKS 3 6 K GROUP M ODULE 7 8 PC1395 FITTED AS LINK FUNCTION SUPPLIED NOTES BUS7SELECT MODULE POSITION 5 MATRIX GROUP 7 ASSIGN MODULE POSITION MATRIX GROUP 8 DEPENDENT ASSIGN memos sta Oe 7 TRANSFORMER YES REMOVE BOTH BYPASS WHEN AN OUTPUT TRANSFORMER a TRANSFORMER 15 BYPASS USED The above links will not normally require alteration unless the console is reconfigured 52 CS8 OPERATION MANUAL 53 GROUP MODULE 7 8 BLOCK DIAGRAM inano fE YILIN TWNYALXS 0 Mj E uw ie 4 INdLNO ONO
46. d The local MUTE button will illuminate during a group mute FADER The fader is the main signal level control for the channel and isa long throw type giving smooth control of the channel level Note that the fader is calibrated and the normal operating position is expected to be close to the OdB mark If the fader is significantly lower than this then the input signal is too high and either the input gain control near the top of the module should be reduced or the GAIN switch pressed to select the line input LO If this action is not taken distortion may result If the fader hasto be pushed above the point then thisindicates that the input signal is low and that the input gain should be increased or the GAIN switch set for microphone operation HI If this action is not taken the signal may contain more noise than necessary 34 CS8 OPERATION MANUAL CONNECTORS AND PIN DEFINITIONS Line Input 1 4 TRS J ack Socket A Gauge Balanced Nominal Input Level 16dBu to 14dBu Tip Signal ve Hot Ring Signal ve Cold MIC LINE Sleeve Ground Input Impedance gt 10 kOhm i SX K Mic Line Input 3 Pin Female XLRtype Balanced Nominal Input Level 16dBu to 66dBu Pin 2 Signal ve Hot Pin 3 Signal ve Cold Pin 1 Ground Input Impedance 22 kOhm REMOTE 9 5 MUTE OUT 2 2 MUTE IN 1 E GROUND Remote
47. dge is mounted the console connectors are concealed by the wiring to the meterbridge and are therefore unavailable for use When the console isshipped the meterbridge will not be mounted 66 CS8 OPERATION MANUAL FITTING THE METERBRIDGE Meterbridges can be easily retro fitted to consoles as follows If required modify the master module so that the meters will only display solo audio levels this will already be done on consoles leaving the factory with a meterbridge This neccesitates removing the master module from the console To remove the master module first of all ensure that the console is not powered Remove the double width blanking panel with the DDA logo on it This is retained by a screw at the top and bottom Remove the 10 screws retaining the top and bottom of the master module and the 6 screws retaining the rear of the module to the frame Gently ease out the module into a working position Remove Link 9 on PC1396 by cutting it and fit R190 100k The simplest method is to solder the new resistor across the pads on the component side of the board thus avoiding having to disassemble the module to gain access to the solder side of the board Reinstall the master module into the console Remove the plastic blanking plugs from the console position the meterbridge and mount it by inserting the supplied screws Wire the meterbridge connectors onto the master module connector panel following the identification informat
48. dules feeding the group is too high or too low AFL This allows the group output to be checked by switching it through to the monitoring system The group can then be heard and its level observed on the master meters GROUP OUTPUT MODULES 1 6 41 CONNECTORS AND PIN DEFINITIONS fo S INSERT AUXILIARY 4 5 INSERT GROUP 2 B IIN 5 INSERT ies MATRIX 2 42 Auxiliary Output 3 Pin Male XLR type Balanced Nominal Input Level OdBu Pin 2 Signal 4ve Hot Pin 3 Signal ve Cold Pin 1 Ground Output Impedance 75 Ohm Insert Point 1 4 TRS Jack Socket A Gauge Unbalanced Nominal Input Output level OdBu Tip Insert Send Ring Insert Return Sleeve Ground Output Impedance lt 5 Ohm Input Impedance gt 10 kOhm Group Output 3 Pin Male XLR type Balanced Nominal Output Level OdBu Pin 2 Signal ve Hot Pin 3 Signal ve Cold Pin 1 Ground Output Impedance lt 75 Ohm Insert Point As above Matrix Output 3 Pin Male XLR type Balanced Nominal Input Level OdBu Pin 2 Signal Hot Pin 3 Signal ve Cold Pin 1 Ground Output Impedance 75 Ohm Insert Point As above External Input 1 4 TRS ack Socket A Gauge Balanced Nominal Input Level OdBu Tip Signal ve Hot Ring Signal ve Cold Sleeve Ground Input Impedance gt 10 kOh
49. e and right outputs of the console MUTE GROUPS Four switches are provided to enable operation of the four mute groups provided on the console Pressing MUTE 1 for example will mute any channels assigned to that mute group FADERS LEFT CENTRE MONO and RIGHT faders are provided to give smooth control of the output signals Operation around the OdB calibration point is expected and significant deviations from this would indicate that the levels routed to the master outputs are incorrect HEADPHONES Stereo headphones with impedances from 100 ohms to 600 ohms may be plugged into the headphone socket This socket is located below the armrest and to the right hand side of the console CS8 OPERATION MANUAL CONNECTORS AND PIN DEFINITIONS Please refer to the diagram overleaf for connector positions Left and Right Outputs Pin XLR type Balanced Nominal Output Level odBu Pin 2 Signal ve Hot Pin 3 Signal ve Cold Pin 1 Ground Output Impedance 75 Ohm Mono Centre Output 3 Pin XLR type Balanced Nominal Output Level OdBu Pin 2 Signal 4ve Hot Pin 3 Signal ve Cold Pin 1 Ground Output Impedance 75 Ohm Tape Play Inputs Phono Sockets Nominal Input Level 10dBV Tip Signal 4ve Hot Sleeve Ground Input Impedance 240 kOhm Tape Record Outputs Phono Sockets Nominal Output Level 10dBV Tip Signal 4ve Hot Sleeve Ground Output Impedance 1k5 Ohm Insert Po
50. e low frequency response of the cluster can be tailored to a range appropriate for vocals problems such as the proximity effect of cardiod microphones can be minimized The physical separation of the voice from instrumental or sound effect backgrounds also aids the ear making the featured vocal stand out in relief over the rest of the mix As the centre cluster is primarily for vocals it is more likely to be operated in its linear region below the onset of overload This and the fact that the signals that it reproduces have relatively simple harmonic structures results in greatly improved clarity by minimizing distortion The left right accompaniment channels can be driven into overload without distorting the vocal signal The DDA CS8 is a uniquely powerful and flexible console that is purpose built for controlling such systems and maximising their performance A typical application might be a small multi purpose hall asthe illustration overleaf shows Such halls generally serve a wide range of functionsthat may include lectures or assemblies multi media events or industrial shows and live performances of music or theatrical plays 4 CS8 OPERATION MANUAL Illustrated in the diagram isan LCR sound system designed to meet the varying requirements of such programs A central cluster optimized for voice reinforcement and consisting of two dual concentric horn loudspeakers is flown over the stage lip The left right system consists of
51. effect unit will also be reduced CS8 OPERATION MANUAL 2 W THE GROUP OUTPUT SECTION MONO This feeds the post fade group signal to the mono or centre bus of the console when pressed In LCR mode the centre output of the pan pot will be replaced by the post fader signal if this switch is pressed In L R mode the mono output will not receive a signal until thisswitch is pressed MIX When MIX is pressed the group signal is sent to the stereo mix The pan control can be switched to LCR mode and the centre bus will then be fed with the centre output of the pan pot SIS L R L C R This changesthe pan pot from L R mode to LCR mode where the signal will pan between left and centre or right and centre MUTE Pressing this mutes the group signal An led indicates the MUTE condition PAN This adjusts the relative levels of signal sent to the left and right outputs or the left centre and right outputs depending upon the selected pan mode when MIX is pressed FADER The fader controls the level of the group output As with the input module fader operation close to the OdB calibration point is expected and any large deviation from this would indicate that the signal fromthe mo
52. eo modules will be mounted to the left of the master module within a block of 8 channels In the case that the module can only be fed with a mono source then either the left or right input can be used in conjunction with the L and R switches These allow only the left or right input to be fed through the stereo signal path If two mono signals were presented to the module these switches could be used to select the required input In the case that a stereo input needs to be mixed to mono both L and R buttons can be pressed and a mono version of the input signal will be created and fed through the stereo signal path Auxiliaries 7 and 8 may be used as a stereo send by pressing the STEREO button otherwise they will carry mono versions of the input signal as do the other auxiliaries When used in stereo there is no pan control but the level to 7 and 8 can be independently adjusted to position the stereo image Routing isthrough independent switches and they must be used in ODD EVEN pairsto achieve stereo routing to the groups Routing to the MIX is in full stereo THE STEREO INPUT MODULE 27 THE INPUT SECTION 48V Provides 48 volt phantom power for a condenser microphone D I box The 48V ON switch on the master module must be ON for phantom power to operate Optional balancing transformers may be fitted on the Mic Line input GAIN The gain control is a wide range rotary potentiometer which is active
53. ght signals MUTE 20 GRPS OdB Indicates when the pre fade signal isat or above 2 OdB A single led is used to indicate the higher 50 40 of the left and right signals SIG This led shows when signal is present in the channel and can be a useful aid on occasions when no output can be found fromthe console A single led is used to indicate signal on either or both of the left right signal paths PFL The PFL button feeds the post insert return signal to the Monitor Section loudspeakers or headphones replacing the selected monitor source The main stereo and centre outputs of the console are not affected unless SIP operation is selected on the master module The led in the PFL switch will illuminate when the PFL function is active and PFL signals from different channels that are active simultaneously will be mixed together If Solo In Place mode is selected then all other channels on the console will be muted while only the channel initiating the solo will be heard This allows signals to be previewed exactly as they will appear in a mix but in isolation THE STEREO INPUT MODULE 33 SAFE This prevents a channel from responding to the mute groups without deassigning it MUTE GROUPS 1 4 These assign the module to one or more of the 4 mute groups As a master mute switch is pressed on the master module any modules assigned to that mute group will be mute
54. he VU Meterbridge has 11 meters Three meters are dedicated to the Left Centre and Right mixes while the remaining eight meters can be switched between the Auxiliary Group and Matrix outputs The LED Bargraph Meterbridge incorporates input metering in addition to eleven output meters Where stereo input modules are fitted one meter will be used to indicate the higher of the left and right signals All bargraph meters have 12 segments displaying a range from 21dBu to 12dBu in 3dB steps with a peak reading characteristic Three switches allow selection of either the Auxiliary Group or Matrix signals on the meterbridge The output module meters which can be switched between Group and Matrix remain active enabling any two sets of output signals to be viewed at one time 5 25 25 49 AUX 9 9 9 9 6 6 6 6 6 3 3 3 3 3 0 0 0 0 0 3 GRP 3 3 3 3 6 6 6 6 6 9 9 9 9 9 2 2 2 2 2 15 MTX 15 15 15 15 18 18 18 eS pl e poem pues Dp 24 L C The above illustration shows the signal selection switches on the led meterbridge The meterbridge also carries LITTLITE connectors When the meterbri
55. he above links will not normally require alteration unless the console is reconfigured Auxiliary Link Options Auxiliaries 1 3 Link 3 is normally installed causing the pre fade signal fed to auxiliaries 1 2 and 3 to be pre fade post mute meaning they will mute if the channel is muted Link 4 will make the signal pre equaliser and independent of the mute Auxiliaries 4 6 Link 6 is normally installed causing the pre fade signal fed to auxiliaries 4 5 and 6 to be pre fade post mute meaning they will mute if the channel is muted Link 5 will make the signal pre equaliser and independent of the mute Auxiliaries 7 8 Link 8 isnormally installed causing the pre fade signal fed to auxiliaries 7 and 8 to be pre fade post mute meaning they will mute if the channel is muted Link 7 will make the signal pre equaliser and independent of the mute THE MONO INPUT MODULE 25 CS8 MONO INPUT BLOCK DIAGRAM ALNW dNOUD ILAW 8 L 9 S v 1331
56. he level of all the channels assigned to the group as only the one master fader will alter the level of the entire group Individual faders on the input channelscan of course still be moved to alter the balance within the group CS8 OPERATION MANUAL THE METER SECTION METER This meter indicates the level of the group or matrix output It has a PEAK reading characteristic 28 BUS PEAK js This indicates when the group or matrix 5 20 summing amplifier isin danger of running into 2 distortion The signals routed to the group or matrix should be reduced in level by pulling the input faders down or reducing the input gain of the routed channels 222211 GROUP MATRIX 1 23 A The meter normally reads the group output lt lt With this switch depressed the meter will read BUS 7 the matrix output Note that the BUS PEAK led will then indicate any peaks on the matrix bus El GROUP MATRIX THE AUXILIARY MASTER SECTION AUX MASTER This adjusts the overall level of an auxiliary send The illustration shows auxiliary 3 AFL This allows the auxiliary send to be checked by switching it through to the monitoring system The auxiliary output can then be heard and its level observed on the master meters There is a pre fader auxiliary insert point allowing effcts units to be inserted into the
57. iding 15dB of boost or cut The frequency isadjustable from 470Hz to 15kHz and the equaliser has a Q of 1 4 Q is a way of describing the range of frequendesthat the equaliser will affect with a low covering more frequencies than a high Q It can also be stated as Bandwidth or width LM LS and a Q of 1 4 isequaivalent to a bandwidth of 252310041 about 1 octave BN 3 9 2 E pe LO MID A swept middle frequency equaliser providing 15dB of boost or cut The frequency isadjustable amp from 70Hz to 2k2Hz and the equaliser has a Q of 1 4 LF A low frequency equaliser providing 15dB of boost or cut at 100Hz EQ Thisswitch allowsthe equaliser to be switched in and out of circuit It may be used to minimise the signal path when the equaliser is not in use It isalso possible to make instant comparisons between the equalised and unequalised signal by using this switch INSERT POINT An insert point is located after the EQ section allowing the introduction of an effect unit or similar into the signal path Insert pointsallow the signal path in the module to be broken and for an effect device such as a compressor to be inserted With no jack inserted signal is normalled through to the insert return point but when a jack isinserted this path is broken and the signal from the jack is forced out of the module through the effect unit and back through the insert return to join the main sig
58. ints 1 4 TRS Jack socket A Gauge Unbalanced Nominal Input level OdBu Tip Insert Send Ring Insert Return Sleeve Ground Output Impedance lt 75 Ohm Input Impedance 210 kOhm Monitor Outputs 3 Pin XLR type Balanced Pin 2 Signal 4ve Hot Pin 3 Signal ve Cold Pin 1 Ground Output Impedance 75 Ohm Nominal Output level OdBu Headphone Output TRS Jack Socket A Gauge Nominal Output level 14dBu Tip Left Channel Ring Right Channel Sleeve Ground THE MASTER MODULE 61 5 5 A ae LITTLITE LITTLITE 2 2 B 1 amp amp 2 5 A M 6 au m 2 Ge SY PLAY L RECORD L OUTPUT METER INSERT a CENTRE xem INSERT RIGHT INSERT INPUT 1 24 METER MON c SA aw INPUT 25 48 METER 1 2 Ney 3 NA 3 Jg 1 Ox MON T MIX E T dc R a a pom 2 E J 13 205 Ne 22 BUS LINK CS8 OPERATION MANUAL MASTER MODULE LINKS CS8 MASTER R198 LINK 9 LINKS 1 8 MASTER M ODULE PC1396 FITTED AS LINK FUNCTION SUPPLIED NOTES AUXILIARY 1 TRANSFORMER BYPASS AUXILIAR
59. ion on the cables and the module connector panel 58 MASTER R192 LINK 9 LINKS 1 8 The meterbridge is pre aligned and no adjustment will be required after installation THE METERBRIDGE 67 BUS LINKING Bus linking enables a pair of CS8 consoles to be used in a master slave configuration Normally a concealed connector will link the input modules to the output modules within a console This connector can be removed and replaced by a DDA supplied bus linking cable which performs differently depending upon whether the console is to be a master or a slave The BUS LINK connector is located on the rear of the frame below the master module Accessismade by removing the BUSLINK panel to expose a connector with a handle Remove this connector from the console and plug in the appropriate end of the linking cable depending upon whether the console isto be a master a slave Similar action should be taken on the second console using the other end of the linking cable Connect the ground cable to the ground studs on each console If a console is to be a master then use the master end of the bus link cable which maintains the link between the input and the output modules The cable then connects the input modules from the slave console onto the master console buses If a console is to be a slave console then use the slave end of the cable which breaksthe link between the input and output modules and connects the input module
60. leeve and it isthe A Gauge that is used on DDA product AFL After Fade Listen For listening to post fade signals those controlled by the channel fader AUXILIARY SENDS These are extra signal paths out of the console which are separate from the main mix and group outputs Each auxiliary output is like a separate mixer and can be controlled independently of the main faders They are used to provide special mixesto artists asthey are recording normally called FOLDBACK or as a signal to be sent to an effect such as a reverberation or delay device BUS This is the common point for all signals routed to a particular destination usually taking the form of a piece of wire or cable running acrossthe console A number of signalsrouted to the same bus will appear as one signal at the output of the bus mixing amplifier BUS TRIM A control used to adjust the level of all signals mixed on the same bus D I Direct Inject isan input used for high level devices such as keyboards where the line input would not be sensitive enough DIM This reduces the monitor level by a preset amount usually 2 in DDA products DIRECT OUTPUT This refers to the individual output of a channel which is available even if the channel is not routed EBO Electronically Balanced Output GLOSSARY 81 Equaliser or Tone Control GROUND SENSING OUTPUT An output stage where any ground noise is injected into the feedback loop in such a way that it
61. m 58 OPERATION MANUAL GROUP MODULE 1 6 LINKS CS8 MATRIX OUTPUT LINKS 18 19 LINKS 1 4 9 12 14 15 20 21 _ ee LINKS 7 8 LINKS 5 60 ah eee MM GROUP MODULE 1 6 PC1398 FITTED AS SUPPLIED FUNCTION BUS 3 SELECT BUS 4 SELECT BUS 5 SELECT MODULE POSITION DEPENDENT BUS 6 SELECT 5 GROUP OUTPUT YES REMOVE IF AN TRANSFORMER BYPASS OUTPUT YES N GROUP OUTPUT TRANSFORMER IS TRANSFORMER BY PASS FITTED AUX 3 SELECT AUX 4 SELECT AUX 5 SELECT MODULE POSITION DEPENDENT AUX 6 SELECT MATRIX ASSIGN gt A N pa MATRIX OUTPUT TRANSFORMER BY PASS MATRIX OUTPUT TRANSFORMER BY PASS REM OVE IF TRANSFORMERS AUXILIARY OUTPUT ARE USED TRANSFORMER BYPASS AUXILIARY OUTPUT TRANSFORMER BY PASS AUX 1 SELECT MODULE POSITION AUX 2 SELECT DEPENDENT AUX 7 SELECT AUX 8 SELECT BUS 1 SELECT BUS 2 SELECT GROUP OUTPUT MODULES 1 6 43 GROUP MODULE 1 6 BLOCK DIAGRAM GROUP INSERT POINT TO METER 11611 OPTION 1 o MULTIPOLE CONNECTOR momo 5 GROUP OUTPUT L OUTPUT gt EXTERNAL INPUT AY m D N gt
62. n lt 50 EQ range HF 47 15dB 10kHz shelving LF 47 15dB 100Hz shelving Hi Mid 154 470Hz 15 2 1 4 Lo Mid 47 15dB 70Hz 2 2kHz 1 4 Channel Routing Attenuation gt 90dB 1kHz Channel Mute Attenuation gt 95dB 1kHz Channel Fader Attenuation gt 85dB 1kHz Distortion 0 005 1kHz any input to any output at a gain lt 50dB Noise 82dBu 24 channels routed and cut EIN 127 5dBu ref 200 ohms EIN 128 7dBu ref 150 ohms Maximum output level 20dBu into a bridging load Output impedance lt 5R Maximum input level _ Phono connector levels Nominal 10dBV Signal present threshold 21dBu Peak led threshold 3dB below dipping Power consumption 600 Watts OPTIONS Input transformers Multipole connectors Output transformers Bus linking cable LED Meterbridge Spare power supply with auto Flight case switchover VU Meterbridge 12 CS8 OPERATION MANUAL CS8 DIMENSIONS AND WEIGHTS 48 CHANNEL 1930 50mm 76 00 40 CHANNEL 1681 50mm 66 20 32 CHANNEL 1432 50mm 56 40 MASTERAND OUTPUT SECTION FO oz t J 16 CHANNEL 934 50 36 70 24 CHANNEL 1183 50mm 46 60 125 5mm 4 9 373 00mm 14 50 29 34mm 1 14 202 80 5 3 22
63. n mode with MIX selected no signal will be routed to the mono output if this switch is not depressed With the pan control in LCR SIS mode and MIX selected the centre output of the pan pot is routed to the mono or centre bus without this button being pressed If the button is pressed the centre pan pot output will be replaced by the post fade signal MIX Routes the post fade post pan channel signal to the stereo mix busorthe left centre and right busesif LCR SIS panning isselected 20 CS8 OPERATION MANUAL PAN Switch This assigns the post pan pot signal to the groups An odd and an even group should be used Left panned signal will go to odd groups while right panned signals will go to even groups 95 L R This changes the pan pot from a stereo pan pot to a left centre right pan pot PAN Control This pans the signal across the selected buses Operation depends upon whether L R or L C R mode is selected L R mode pans the signal acrossthe left and right outputs of the console while L C R mode pans the signal acrossthe left centre and right buses THE MONO INPUT MODULE 21 MUTE This switch mutes the signal Indication of a MUTE is given by an led in the switch All post z m PK fade auxiliary sendsand routing assignmentsare muted in addition to the fade post mute y sends The MUTE function can be remotely controlled through the rear panel REMOTE connector M
64. n professional applications To counter this balanced operation is usually preferred where the signal send and return use individual wires which will normally have an overall screen Thus XLRs have 3 pins two for the balanced signal and one for ground which isnow used for screening purposes rather than as a signal return path It is common practise to have the ground connected at one end of a cable only to reduce the risk of ground loops which can induce hum and interference into the wanted audio signal When jacks are used they must be of the TRS Tip Ring Sleeve type to carry a balanced circuit The internal electronics of the console are unbalanced therefore every balanced input must have a balanced to unbalanced input stage and every balanced output must have an unbalanced to balanced output stage These stages also modify the level of the signal such that the internal console signal is optimised for noise and distortion INTERCONNECTION A number of pointsrequire to be addressed when connecting inputs and outputs together if either or both are unbalanced The crucial points are grounding and how the screen is connected The following table gives an indication of the connections under all possible cases Note that balanced means balanced and floating such as from a transformer while differential refers to an electronically balanced input or output which cannot float Output Input Screen See Note Unbalanced Unbalanced Source Unb
65. nal path again The following graphs illustrate the frequency response of the different equaliser sections 16 CS8 OPERATION MANUAL AUDIO PRECISION CS8HFLF AMPL dBr vs FREQ Hz 11 APR 97 11 31 21 Ap 20 00 20 AUDIO PRECISION CS8HIMID AMPL dBr vs FREQ Hz 11 APR 97 11 37 11 15 000 10 000 Ap 5 0000 0 0 5 000 10 00 15 00 20 00 2 100 10k 20k AUDIO PRECISION CS8LOMID AMPL dBr vs FREQ Hz 15 000 11 APR 97 11 41 51 Ap 10 000 5 0000 0 0 5 000 10 00 15 00 20 00 100 10k 20k AUDIO PRECISION CS8HPF AMPL dBr vs FREQ 15 000 Hz 11 APR 97 11 43 15 Ap 10 000 5 0000 0 0 5 000 10 00 15 00 20 00 20 100 1k 10k 20k THE MONO INPUT MODULE THE HIGH AND LOW FREQUENCY EQUALISER RESPONSE THE HI MID FREQUENCY EQUALISER RESPONSE SHOWING FREQUENCY RANGE THE LO MID FREQUENCY EQUALISER RESPONSE SHOWING FREQUENCY RANGE THE HIGH PASS FILTER RESPONSE 17 AUX 1 AUXILIARIES Auxiliary outputs have many uses and it is probably sim
66. nly through the sereo signal path If both the above switches are pressed then the left and right input signals are combined to mono and fed through both signal paths in the module BAL This alters the relative left and right levels of the stereo signal onto the left and right buses of the console It works as a pan control giving full attenuation of the unwanted side at extremes of travel A balance control with a more limited range of operation can be made from the pan control Please refer to the technical manual for this 32 58 OPERATION MANUAL This switch mutes the signal Indication of a MUTE is given by an led in the switch All post fade auxiliary sends and routing assignments are muted in addition to the pre fade post mute sends PFL The MUTE function can be remotely controlled through the rear panel REMOTE connector Mute information from the module can also SAFE be sent to other channels within the console or to external device such midi sequencer 11 ___ 2 This led light emitting diode illuminates when the signal is getting close to clipping level If clipping occurs the signal will be _ severely distorted and the channel input gain should be reduced A single led is used to 15 indicate the higher of the left and ri
67. o PFL key pressed will be heard This can be a dangerous mode particulary during live work and for this reason the master SIP MODE switch is recessed To operate the switch a blunt non conducting instrument should be used to push the switch through the panel hole An led illuminates to warn that SIP MODE is selected THE MASTER MODULE 59 MUTE GROUPS ar 1 MUTE CENTRE LEFT MUTE CENTRE MUTE 2 2 RIGHT MUTE A CER DCE ee LEFT CENTRE RIGHT M Q N O Ky T 10 10 1C 0 0 5 5 25 25 25 d 30 30 40 40 40 0 00 60 MASTER FADERS L R TO CENTRE This mixesthe post fader left and right outputs onto the centre output of the console MUTE Independent M UTE switches are provided for the left centr
68. odule to one or more of the 4 mute groups As a master mute switch is pressed on the master module any modules assigned to that mute group will be muted The local MUTE switch will illuminate to indicate a group mute SAFE This prevents a channel from responding to the mute groups without deassigning it FADER The fader isthe main signal level control for the channel and isa long throw type to give smooth control of the channel level Note that the fader is calibrated and the normal operating position is expected to be dose to the OdB mark If the fader is significantly lower than this then the input signal is too high and either the input gain control near the top of the module should be reduced or the GAIN switch pressed to select a line level input LO If thisaction isnot taken distortion may result If thefader hasto be pushed above the OdB point then thisindicates that the input signal is low and that the input gain should be increased or the GAIN switch set for microphone operation HI If this action is not taken the signal may contain more noise than necessary THE MONO INPUT MODULE 23 CONNECTORS AND PIN DEFINITIONS Direct Output 1 4 TRS Jack Socket A Gauge Unbalanced Nominal Output level OdBu DIRECT Signal LO Ring Ground nd Sleeve Ground INSERT Output Impedance lt 75 Ohm Insert Point 1 4 TRS Jack Socket aT A Gauge Unbalanced 2 Nominal Input Ou
69. on both Mic and Line Inputs With HI GAIN selected the gain can be adjusted from 20dB to 70dB while for LO GAIN the adjustment is from 10dB to 420dB HI LO GAIN Pressing this inserts an attenuator into the signal path and alters the range of gain adjustment available This should be used when high level or line level signalsare connected to the channel through the line input jack Note that if a jack is not inserted into the line input socket then the XLR connector may be used asthe line input The TRS jack could also be used asa microphone input although it is not recommended and phantom power will not be available REV Pressing this reverses the phase strictly the polarity of the left input signal This should only be used when a stereo signal has phase or polarity difference between the left and right signals 7 80 2 This switch inserts an 80Hz highpass filter with a rolloff of 18dB per octave into circuit after the input amplifier This may be used to eliminate unwanted low frequency noises transmitted to the microphone through a floorstand for example 28 CS8 OPERATION MANUAL EQ IN This switch allows the equaliser to be switched in and out of circuit It may be used to minimise the signal path when the equaliser is not in use It is also possible to make instant comparisons between the equalised and unequalised signal by using this switch EQUALISER
70. paid This Warranty shall only be available if i The Equipment has been properly installed in accordance with the instructions contained in this manual ii End User has notified the Distributor or in writing within 14 days of the defect appearing iii No persons other than authorised representatives of DDA or the Distributor have effected any replacement of parts maintenance adjustments or repairs to the Equipment iv The End User has used the Equipment for such purposes as DDA recommends with only such operating supplies as meet DDA s specifications or approval and otherwise in all respects in accordance with DDA s recommendations Defects arising as a result of the following are not covered by this Warranty Faulty or negligent handling chemical or electro chemical or electrical influences accidental damage Acts of God neglect deficiency in electrical power air conditioning or humidity control Benefit of this Warranty may not be assigned by the End User End Users who are consumers should note that their rightsunder this Warranty are in addition to and do not affect any other rightsto which they may be entitled against the seller of the Equipment DDA shall not be liable for any damage caused to persons or property due to i Incorrect usage of the Equipment ii Other equipment attached to the Equipment which is not approved DDA iii Modifications made by non authorised persons or by using
71. plest to consider the auxiliaries as additional mixing buses They can be used to send signal to an effect unit such asa reverberation device or to develop another mix for use as foldback or monitoring Each auxiliary has a master level control which equates to the master faders of the console This controls the output level of the auxiliary and the contributionsfrom individual channels can be adjusted using the controls located on the modules Signals to the auxiliary sends can be switched pre or post fader In pre fade mode the auxiliary signal will only depend upon the position of the auxiliary send control but in post mode the signal will depend both upon the channel fader position and the position of the auxiliary send control There are two pre fade signals one is taken from before the equaliser and isalways present while the second is taken immediately before the fader but will mute if the channel is muted If required this auxiliary mute can be disabled by removing link 1 and inserting link 2 Selection of the pre fade signal is made by removing and installing links according to the table on page 25 Normally the pre fader post mute signal is used to feed the auxiliaries There are eight auxiliary outputs Additionally the channel direct output may be used to provide a dedicated auxiliary send Controls the level of the channel signal fed to Auxiliary 1 AUX 2 Controls the level of the channel signal fed to Auxiliary 2
72. red to demonstrate that the products meet the requirements of the Low Voltage Directive has been compiled by the signatory below and is available for inspection by the relevant enforcement authorities The CE mark was first applied in 1996 Signed Authority Product Support Manager Date 1st January 1997 G M Squires Attention The attention of the specifier purchaser installer or user is drawn to special measures and limitations to use which must be observed when these products are taken into service to maintain compliance with the above directives Details of these special measures and limitations to use are available on request and are also contained in product manuals 86 CS8 OPERATION MANUAL WARRANTY If within a period of three years from the date of delivery of the equipment to the End User it shall prove defective by reason only of faulty materials and or workmanship but not faulty design to such an extent that the effectiveness and or the usability thereof is materially affected the Equipment or the faulty component shall be returned to the Distributor or DDA and subject to the following conditions the Distributor or DDA will repair or at its option replace the defective components Any components replaced will become the property of DDA Any Equipment or component returned will be at the risk of the End User whilst in transit both to and from the Distributor DDA and postage and or freight charges must be pre
73. s Optional VU output meterbridge LED Input Output meterbridge Spare PSU with autoswitchover further stereo inputs transformer balancing and Midi Muting OVERVIEW 7 SAFETY PRECAUTIONS IMPORTANT PLEASE READ BEFORE INSTALLING YOUR CS8 CONSOLE Strong sources of electromagnetic radiation e g high power cabling video monitors and radio transmitters may cause degradation of the audio quality due to induced voltages in the chassis and connection leads Site the console away from such sources For the same reason it is advisable to site the power supply away from the console V Electronic components are susceptible to conditions of excessive heat or extreme cold so take care not to use your console under such conditions y Before powering up the console make sure that the power supply voltage selection matches the local mains supply Never connect or disconnect the power cable without switching off the power supply Similarly switch off the console before removing or servicing modules y Do not attempt to wipe clean the console with a cleaning liquid Most surfaces can be simply cleaned with a soft dry brush Should the chassis or channel ident stripsneed cleaning use only water or isopropyl alcohol Solvent based products should not be used as they may damage these parts Use a wax based crayon to write on the scribble strips The use of adhesive backed tapes may damage the screen printing on the modules TRANSPORT I
74. s over to the buses of the master console The master and output modules of this console are now disabled When linked operation is no longer required the link cable should be removed from both consoles and the original connectors replaced It is strongly recommmended that the cover plates are then replaced to prevent the ingress of electromagnetic interference BUS LINK PORT BUS LINK PORT C 7 GROUND GROUND STUD STUD INPUT BUS OUTPUT BUS INPUT BUS OUTPUT BUS MASTER CONSOLE SLAVE CONSOLE The above illustration shows how the link cable joins the input modules of the slave console to the buses of the master console Note that both consoles must still have their own power supply As more audio signals now being mixed onto the buses the bus levels will increase and there may be a risk of overload To prevent thisthe input faders should be reduced by a small amount on all of the input channels 68 CS8 OPERATION MANUAL MULTIPOLE CONNECTORS OPTIONAL Multipole connectors are of most use in a mobile situation reducing thetime taken to rig and derig a sound system The risk of a misplug is reduced as less connections have to be made while both inputs and outputs can be wired to the multipole connectors Modules have a connector fitted which is wired in parallel with the existing input or output connector This connector is wired to a multipole connector through a
75. s with the master faders dosed thus preventing any console signal sources from being heard 56 CS8 OPERATION MANUAL MONITORING MONITOR SOURCE MONITOR LEVEL When pressed thisselects MIX 7 4 5 6 tape input as the source for 5 AS the monitoring system MONO M 7 1 NY 9 ONITOR MIX m This selects the Left Centre PHONES ON Right outputs of the console to the monitoring system when MIX is the selected source Monitor Source UP CENTRE MONO This selects the centre bus to the monitoring system where it is mixed equally onto the left and right monitor signal paths If TAPE is selected the centre feed is cut off and no signal will indicate on the centre meter This switch should be used when it is required to listen to the centre mix on headphones and when there are only two monitor loudspeakers MONITOR LEVEL Thiscontrolsthe level of the local monitor and headphone outputs Note that there are three loudspeaker outputs for monitoring the left centre and right mixes PHONES ON Pressing this enables alternative monitoring through stereo headphones Note that this only monitors the left and right mixes and CENTRE TO L R should be pressed when the Centre mix requires to be monitored on headphones The HEADPHONE socket islocated under the armrest on the front of the console THE MASTER MODULE 57
76. signalsto be fed into the console through a fader for level control to be level balanced and then to be routed to the group buses or the main L R or Mono buses In the event of a large mix they may assist in creating the required number of inputs or if consoles are linked together then they may be used to carry the outputs of the slave console onto the buses of the master console The input jacks are wired such that if a mono signal is fed to the left input then it will also be routed to the right input through the normalling connections of the jack sockets In addition to the stereo returns the 58 is fitted as standard with 4 fully featured stereo input modules A twelve segment led meter reads the signal present on the Group output It is post fade and post mute and therefore will show no signal if the fader is dosed or the group is muted The group outputs can be used in their own right as console outputs to be fed to loudspeaker systems or tape machine inputs They can also be sub mixed onto the main left right and centre buses of the console creating the abilityto control the level of several input channels onto the main buses with one group fader GROUP OUTPUT M ODULES 7 8 45 212 15 18 1 21 BUS PEAK KD STEREO RETURN 46 559 9 9 12 20 12 15 3 10KHz 6 9 Z 12 15 _ 3 100
77. t 15 recommend that you retain all the packing from your console should you ever need to return it for service or move the console to other premises If the console has to be moved regularly then we suggest that you purchase a foam lined flight case available from your distributor if you cannot purchase one locally Only use the power supply and cables provide Your warranty is invalidated if other supplies or cables are used If you experience any problem with the local mains or during thunder storms switch off the power supply and unplug it from the mains supply 8 CS8 OPERATION MANUAL CS8 QUICKSTART For this you should have the following items available Microphone and cable XLR to XLR connectors Power amplifier with mains cord and signal cable Loudspeaker with connecting cable Headphones CS8 Console First of all make sure that the power supply is suitable for connection to your local supply Connect the console to the power supply Connect the microphone into channel 1 and the power amplifier into the MON L output and MON R if you have stereo REMOTE amplifier Connect your speakers to the amplifier MUTE OUT MUTE IN and set the volume GROUND apr control s to a low position Switch on the console FOLLOWED by the power amplifier Check that the leds on the master module are
78. the top cover which must be removed in order to make the adjustment 2 12 24V zo 220 1724 120 4 m 00 mom An incorrect setting may lead to noisy operation of the console or damage to the power supply and console THE POWER SUPPLY 71 THE DLB600 AUTOSWITCHOVER UNIT The DLB600 Diode Linking Box gives added security to any console operation by allowing two power supplies to feed one console In the event of one supply failing the other supply will take over the entire load and an indication will be given of the failure There are no controlsor adjustments associated with this product and correct operation will result as long as two supplies are connected The unit may be rack mounted carries CSA approval and is designed for use with power supplies of type PSU350 PSU350J or PSI2860 OPERATION Connect a PSI2860 power supply to each input of the DLB600 and connect the output of the DLB600 to the console If required an extra cable DDA Part No ACBL14 103 may be used to extend the output cable of the DLB600 INPUT 2 OUTPUT DDA DLB 600 surety SUPPLY 1 SUPPLY 72 CS8 OPERATION MANUAL CS8 GROUNDING The following illustration shows the grounding system of the CS8 console There
79. to modify the product described in this manual at any time This document may not be copied or reproduced by any method whatsoever whether in part or in whole without the written permission of EVI Pro Audio Copyright 1997 EVI Pro Audio Group rights reserved 2 58 INTRODUCTION The CS8 has been designed asa cost effective multipurpose console suitable in applications ranging from theatre sound reinforcement to high quality touring systems It features SIS Spatial Imaging System which combines a central loudspeaker cluster with a left right system to form three discrete sound channels This configuration will be very familiar to those who have been exposed to feature film sound home theatre or multimedia productions In SIS sound systems the centre channel is reserved for voice and in music reinforcement is sometimes used for solo instruments The centre cluster is designed to cover an entire auditorium while its frequency response istailored to roll off rapidly below 80Hz There a number of advantages created by working this way With a discrete centre channel handling all critical vocal reinforcement intelligibility is maximised Reverberation can be controlled through careful attention to the coverage pattern of the cluster along with careful aiming Reflections in the space that are associated with the vocal signal are more coherent because the space is being excited from a single source and since th
80. tput level cest Tip Insert Send Ring Insert Return Sleeve Ground Output Impedance lt 75 Ohm Input Impedance 210 kOhm Line Input 1 4 TRS Jack Socket A Gauge Balanced Nominal Input Level 16dBu to 14dBu REMOTE Tip Signal ve Hot Ring Signal ve Cold 2 5 Sleeve Ground Input Impedance 210 kOhm Mic Input 3 Pin Female XLR type Balanced Nominal Input Level 66dBu to 16dBu Pin 2 Signal 4ve Hot Pin 3 Signal ve Cold Pin 1 Ground Input Impedance 22 Remote Mute Connector 1 Ground 2 Mute Input Grounding this pin mutes the channel 3 Mute Output This pin is grounded when the MUTE switch is depressed 1 Ec LED sionat R GROUND x SIGNAL GROUND 4 lt 940 E SEND 11325 SIGNAL INSERT RETURN GROUND lt GROUND 2s gt OUTPUT XLR INPUT XLR 24 CS8 OPERATION MANUAL INPUT MODULE LINKS CS8 INPUT MODULE LINKS 3 8 11 12 LINKS 1 2 INPUT MODULE PC1394 FITTED AS FUNCTION SUPPLIED NOTES AUXILIARY CUT ENABLE Y INSTALL ONLY ONE LINK AUXILIARY CUT DISABLE PRE FADER AUX 1 3 PRE EQ TO AUX 1 3 ud PRE EQ TO AUX 4 6 INSTALL ONLY ONE PRE FADER TO AUX 4 6 PRE EQ TO AUX 7 8 hd H c p 4 PRE FADER TO AUX 7 8 Y N A PRE EQ TO DIR OUT ONLY ONE POST EQ TO DIR OUT 22221 LINK T
81. ultiway connector A matrix can be most useful when a number of inputs require to be routed to a number of outputs but not necessarily at the same level It can be likened to having a small number of additional mixers within the console In the case of the CS8 the group outputs form many of the inputs to the matrix and there is thus a level control for each of the eight group signalsinto the matrix section of every output module The group outputs are bused across the modules horizontally while matrix output 2 for example is the vertical sum of all the signals with their controls turned up on matrix module 2 Matrices are often used in theatres where feeds to dressing rooms bar areas the foyer and other areas are required With a matrix the output to an area can be precisely controlled without the compromise of using a mix intended for another purpose Productions using many sound effects may use the matrix to feed the effects to loudspeakers located throughout the auditorium giving very precise localization for the sounds The Left Centre and Right matrix feeds can be used to feed the master console outputsto any matrix destination making it very simple to duplicate the front of house mix to different areas The group output may be used either to feed a tape recorder or to send to another destination such as a power amplifier If required the group can be sub mixed down onto the stereo bus of the console This makes it simple to control t
82. um Override Podium Switch Mic DML 1122A DML 1122A Podium Override interface Channel Cut Ins DMC 2181A DMC 1122A DML 2181A DML 2181A DML 1122A Cassette Video DMC 1122A DMC 2181A DML 1122A Further application related information can be found in the DDA SIS leaflet available through your dealer 6 CS8 OPERATION MANUAL 58 OVERVIEW The CS8 has been designed asa cost effective multipurpose console suitable in applications ranging from theatre sound reinforcement right through to high quality touring systems ALL DDA CS8 consoles include A customer specified number of mono input modules each with 4 band EQ 8 Aux sends individual group routing and incorporating the Spatial Image System SIS 57 to the main outputs 4 Stereo inputs featuring the same EQ and auxiliary access asthe mono inputs and mono input capability 8 sub groups each capable of being routed to the main outputs in stereo or LCR panning styles 6 Matrix Outputs each sourced fromthe 8 groups LCR outputs and an external input 2 stereo returns capable of applying EQ and routing via long throw fader to the groups mix and aux busses Input module remote muting Input signal OdB level indication Accurate output signal indication with Bus Peak indication Group and main bus peak indication Pre Fade inserts on the aux group main and matrix output
83. ute information from the module can also be sent to other channels within the console or to an external device such as a midi sequencer PK This led light emitting diode indicates when the pre fade signal isapproaching dipping level If clipping occurs the signal will be severely distorted and the channel input gain should be reduced 5 OdB MUTE Indicates when the pre fade signal isat or above GRPS 20 OdB SIG 40 This led shows when signal is present in the k channel and can be a useful aid on occasions when no output can be found fromthe console D gt WX X PFL The PFL button feeds the post insert return signal to the Monitor Section loudspeakers or headphones replacing the selected monitor source The main stereo and centre outputs of the console are not affected unless SIP operation is selected on the master module The led in the PFL switch will illuminate when the PFL function is active and PFL signals from different channels that are active simultaneously will be mixed together If Solo In Place mode is selected then all other channels on the console will be muted while only the channel initiating the solo will be heard This allows signals to be previewed exactly as they will appear in a mix but in isolation 22 CS8 OPERATION MANUAL MUTE GROUPS 1 4 These assign the m
84. y used for balanced signals primarily microphones and balanced outputs The most common is a three pin version although there are types with more pinsfor other purposes In fact XLR isderived from extra Low Resistance GLAOSSARY 85 Declaration of Conformity The Manufacturer of the Products covered by this Declaration is Klark Teknik Building Walter Nash Road Kidderminster Worcestershire DY11 7H The Directives Covered by this Declaration 89 336 EEC Electromagnetic Compatibility Directive amended by 92 31 EEC amp 93 68 EEC 73 23 EEC Low Voltage Equipment Directive amended by 93 68 EEC The Products Covered by this Declaration Model CS3 Mixing Console Model CS8 Mixing Console Model CS12M Mixing Console The Basis on which Conformity is being Declared The products identified above comply with the protection requirements of the EMC Di rective and with the principal elements of the safety objectives of the Low Voltage Direc tive and the manufacturer has applied the following standards EN 55013 1990 Limits and methods of measurement of radio disturbance characteristics of Broadcast Receivers and Associated Equipment EN55020 1988 Sound and Television Broadcast Receivers and Associated Equipment Electromagnetic Compatibility EN 60065 1994 Safety requirements for mains operated electronic related apparatus for household and similar general use The technical documentation requi

Operators Manual Klark Teknik Building Walter Nash Road

Contents

Download Pdf Manuals

Related Search

Related Contents