Cadac CDC four User Manual

CDC FOUR Digital Mixing ConsoleUser Manual

10Revision 1 2012-13 CDC FOURStagebox optionsThe CDC FOUR is designed to integrate immediately with existing analogue live sound installations, and ma

Revision 1 2012-13CDC FOUR11Mechanical detailsNOTE: when installing the CDC FOUR in a permanent or semi-permanent situation, an additional allowance

12Revision 1 2012-13 CDC FOURPower supply mattersThe CDC FOUR has an internal Power Supply Unit (PSU). The AC mains power switch is located on the rea

Revision 1 2012-13CDC FOUR13Controls and ConnectionsTop view - control surface 10505102030405060∞CH 9CH 1 CH 2 CH 3 CH 4 CH 5 CH 6 CH 7 CH 8 CH 10 CH1

14Revision 1 2012-13 CDC FOURRear view – connector panel* shown without optional CDC RACK interface installedLEFTRIGHTLITTLITESTALKBACKMONOCH 15GP4AUX

Revision 1 2012-13CDC FOUR15Connector detailsThis section provides electrical details of the CDC FOUR’s inputs and outputs. The tables at the end of t

16Revision 1 2012-13 CDC FOUR7. Master outputs – the main outputs of the mixer. Three XLR male connectors are provided: for left and right chann

Revision 1 2012-13CDC FOUR17Table A*Pin Connection1 Screen2 Signal ‘hot’ (phase)3 Signal ‘cold’ (antiphase) Table B*Pin ConnectionTip Signal ‘hot’ (

18Revision 1 2012-13 CDC FOURBlock DiagramMono Inputs 1-16 Aux Outputs 1-8Stereo Inputs 1-8 Group Outputs 1-4Monitor OutputsStereo OutputsInternal FX

Revision 1 2012-13CDC FOUR19FundamentalsAlthough the CDC FOUR control surface and operating system has been designed to retain the familiarity and fac

Cadac Holdings Ltd.One New StreetLutonBedfordshireLU1 5DXTelephone: +44 (0)1582 404202Fax: +44 (0)1582 412799Email:General information: info@

20Revision 1 2012-13 CDC FOURThe SEL buttonEach fader (except the stereo master) has a SEL button in addition to the usual MUTE and SOLO. The channel

Revision 1 2012-13CDC FOUR21EQ Section:HF: IN – HF EQ in/out.HF: FREQ – EF EQ frequency.HF: GAIN – HF EQ cut/boost.HF: Q – HF EQ Q setting.HF Shelf –

22Revision 1 2012-13 CDC FOURAUX 6: PRE – Aux. 6 pre/post.AUX 7 – Aux. 7 send level.AUX 7: ON – Aux. 7 on/off.AUX 7: PRE – Aux. 7 pre/post.AUX 8 – Aux

Revision 1 2012-13CDC FOUR23LayersOn an analogue mixer, the necessity for every channel (input or output) to have its own set of controls and electron

24Revision 1 2012-13 CDC FOURThe table below summarises the signal which each fader controls in each layer:LAYER SELECT BUTTONFADER CHNS 1-16 CHNS 17-

Revision 1 2012-13CDC FOUR25Screen displays - overviewThe TFT screen in the Central Control Module displays various information about the current stat

26Revision 1 2012-13 CDC FOURSYSTEM:This page provides access to various console functions that do not have equivalent hardware controls. These includ

Revision 1 2012-13CDC FOUR27FX: this page allows control of the CDC FOUR’s two internal FX processors.The processors’ inputs are two “virtual bu

28Revision 1 2012-13 CDC FOURMETERS: this page gives a “global” overview of up to 50 bargraph meters simultaneously.The page is divided in to three ar

Revision 1 2012-13CDC FOUR29Screen navigationAs channel parameters can be varied both from the TFT display or the CAM, a simple system of screen nav

Revision 1 2012-13CDC FOUR3IMPORTANT SAFETY INFORMATIONCAUTION: These servicing instructions are for use by qualied personnel only. To reduce the

30Revision 1 2012-13 CDC FOURSoftkeysThe CDC FOUR has a set of eight “soft” keys below the screen display. These have no printed legends; each button’

Revision 1 2012-13CDC FOUR31Audio channel descriptionsInput channelA detailed block diagram of the Input channel may be found in the Appendix on page

32Revision 1 2012-13 CDC FOURRemainder of input channel - CAM/screen controlAll other input channel functions are controlled from either the CAM or th

Revision 1 2012-13CDC FOUR33VIN – enables an alternative compressor algorithm which makes the compressor act like a leveller, modelling the sound of c

34Revision 1 2012-13 CDC FOUREQ Section:The CDC FOUR’s equaliser is a 4-band parametric type, with bell-shelf switching on the highest and lowest band

Revision 1 2012-13CDC FOUR35Shelf – switches the LF section of the equaliser between Bell and Shelving modes. In Shelving mode, the EQ section acts

36Revision 1 2012-13 CDC FOURFX Sends:The CDC FOUR has two internal DSP-based effects processors, which provide a selection of time-domain effects suc

Revision 1 2012-13CDC FOUR37LIM – non-operative for input channels.Mute and Solo:SOLO – routes the signal in the channel to the internal PF

38Revision 1 2012-13 CDC FOURStereo inputsA detailed block diagram of the Stereo Inputs may be found in the Appendix on page 75.The CDC FOUR has eight

Revision 1 2012-13CDC FOUR39GroupsA detailed block diagram of the Groups may be found in the Appendix on page 76.The CDC FOUR has four mono groups, w

4Revision 1 2012-13 CDC FOURGENERAL PRECAUTIONS• Do not place heavy objects on the control surface, expose it to sharp objects or handle the conso

40Revision 1 2012-13 CDC FOURFX Sends:The groups cannot send to the internal FX processors. All FX Send controls are inoperative and their virtual cou

Revision 1 2012-13CDC FOUR41VCA groupsAlthough the CDC FOUR, as a digital mixer, has no actual VCAs – these being a purely analogue concept – the term

42Revision 1 2012-13 CDC FOURLevels within VCA groupsAs with all layers, when the ST CHNS VCA layer is selected, faders 9 to 16 immediate

Revision 1 2012-13CDC FOUR43Aux outputsA detailed block diagram of the Aux 0utputs may be found in the Appendix on page 77.The CDC FOUR has eight

44Revision 1 2012-13 CDC FOURAux Sends:It is not possible to send an Aux output to another Aux Send. All Aux Send controls are inoperative and their v

Revision 1 2012-13CDC FOUR45Stereo masterA detailed block diagram of the Stereo master may be found in the Appendix on page 78The stereo master channe

46Revision 1 2012-13 CDC FOURCompressor:THR - adjusts the threshold of the channel’s compressor in the range -48 dB to 0 dB. Default setting is -12 dB

Revision 1 2012-13CDC FOUR47Shelf – switches the HF section of the equaliser between Bell and Shelving modes. In Shelving mode, the EQ section acts as

48Revision 1 2012-13 CDC FOURMetering section:L & R METERS – two 10-segment LED bargraph meters indicating the signal level of the stereo master o

Revision 1 2012-13CDC FOUR49FX sends and returnsThe two FX channels in the CDC FOUR differ from the other channel types in that they are entirely inte

Revision 1 2012-13CDC FOUR5CONFORMITIESDeclaration of ConformityThe Directives covered by this declaration: 2004/108/ECThe Products Covered by this De

50Revision 1 2012-13 CDC FOURNoise gate:The FX sends do not have noise gates. All noise gate controls are inoperative and their virtual counterparts d

Revision 1 2012-13CDC FOUR51Other screen pagesThe TFT screen has several further pages available; some of these are selected by the buttons to the lef

52Revision 1 2012-13 CDC FOURAs with the CHN page, the arrow keys may be used to navigate the cursor around the page, and the ADJUST knob used to set

Revision 1 2012-13CDC FOUR53MeteringThe METERS button opens the Metering page. This allows the signal levels in all the CDC FOUR’s internal channels t

54Revision 1 2012-13 CDC FOUREQ detailThis page is opened by pressing Softkey 2 from any Channel Overview page. It provides a graphical representation

Revision 1 2012-13CDC FOUR55The dynamics section’s virtual controls are included on the screen; the cursor and navigation keys may be used to ad

56Revision 1 2012-13 CDC FOURRelease – this works in a similar manner to the Noise Gate’s Release parameter; after the signal level drops below

Revision 1 2012-13CDC FOUR57is applied, and the output level is also -35 dB. The signal level at B is -10 dB, which is above the threshold. This resul

58Revision 1 2012-13 CDC FOURFX processingThe FX button opens the FX Settings page; the two internal DSP effects processors are controlled from here.

Revision 1 2012-13CDC FOUR59Rotor FastOnce a Preset has been selected, the effect may be modied as required by adjusting its various para

6Revision 1 2012-13 CDC FOURContentsIMPORTANT SAFETY INFORMATION 3For US and CANADA only: 3 GENERAL PRECAUTIONS 4 CONFORMITIES 5 Declaration of Con

60Revision 1 2012-13 CDC FOURThe table below summarises the relationship between Factor and Delay Time:FACTOR RATIO TO BPM1 1/242 1/163 1/124 1/85 1/6

Revision 1 2012-13CDC FOUR61LS Frequency, LS Gain, HS Frequency and HS Gain controls have the same functions, parameter ranges and default values.Reve

62Revision 1 2012-13 CDC FOURSystemThe System page provides controls for the CDC FOUR’s oscillator, talkback routing, monitor control functi

Revision 1 2012-13CDC FOUR63TalkbackA dynamic microphone or talkback headset mic may be connected to the TALKBACK connector on the rear panel. Talkbac

64Revision 1 2012-13 CDC FOURassigned to the CAM may be soloed with the CAM’s SOLO button, or the on-screen Solo button using screen navigation in th

Revision 1 2012-13CDC FOUR65Solo system metering and levelsDACDACDACDACDIM14dBDIM14dBMIX0dBMIX0dBMIX0dBMUTELISTEN LEVELAFL/PFLAFL/PFLStereo LeftStereo

66Revision 1 2012-13 CDC FOURSystem SettingsPressing Softkey 8 from the SYSTEM page opens an “engineering” page, which provides information about the

Revision 1 2012-13CDC FOUR67Scene ControlThe CDC FOUR incorporates a Scene Memory system. This is a “snapshot” automation system, and allows every aud

68Revision 1 2012-13 CDC FOURDefault SceneInitially, the only scene in the list is Default. This scene is constant, and cannot be deleted, altered or

Revision 1 2012-13CDC FOUR69displayed pop-up list (USR 1 to USR 4), and press ENTER again.If a User Key previously had a Scene assigned to i

Revision 1 2012-13CDC FOUR7Other mixer functions 70Graphic Equaliser 70USB port 71Ethernet port 71MIDI 71User buttons (U1 – U4) 72Technical Speci

70Revision 1 2012-13 CDC FOUROther mixer functionsGraphic EqualiserThe CDC FOUR is equipped with a stereo 32-band graphic equaliser in the main output

Revision 1 2012-13CDC FOUR71The centre frequency of the band which each fader controls is as follows:Fader 1-16 17-321 20 Hz 800 Hz2 25 Hz 1 kHz3 31 H

72Revision 1 2012-13 CDC FOURUser buttons (U1 – U4)Four programmable soft keys are provided for the operator’s use. These are U1 to U4, to the right o

Revision 1 2012-13CDC FOUR73Technical SpecicationChannels 32 (16 mono 8 stereo)Auxiliaries 8 mono (Switchable pre/post fader) + 2 FX (Switchable pre/

74Revision 1 2012-13 CDC FOURAppendixInput Channel Block DiagramEQ60-600Hz 400-4kHz1k5-15kHz20-200HzSHELF SHELFInput channel - INPUT 1 shownSTEREO LST

Revision 1 2012-13CDC FOUR75Stereo Inputs block diagramEQ60-600Hz 400-4kHz1k5-15kHz20-200HzSHELF SHELFStereo Input ChannelEQ60-600Hz 400-4kHz1k5-15kHz

76Revision 1 2012-13 CDC FOURGroups block diagramEQ60-600Hz 400-4kHz1k5-15kHz20-200HzSHELF SHELFDACSTEREO LSTEREO RPFLAFL LAFL RGROUP 1GROUP 2GROUP 3G

Revision 1 2012-13CDC FOUR77Aux outputs block diagramEQ60-600Hz 400-4kHz1k5-15kHz20-200HzSHELF SHELFDACSTEREO LSTEREO RPFLAFL LAFL RGROUP 1GROUP 2GROU

78Revision 1 2012-13 CDC FOURStereo master block diagramEQ60-600Hz 400-4kHz1k5-15kHz20-200HzSHELF SHELFDACEQ60-600Hz 400-4kHz1k5-15kHz20-200HzSHELF SH

Revision 1 2012-13CDC FOUR79Phones/Monitor block diagramDACDACMIX0dBMIX0dBDACDACDIM14dBDIM14dBMIX0dBMIX0dBMIX0dBMUTELISTEN LEVELAFLTRIMLPFLTRIMSTEREO

8Revision 1 2012-13 CDC FOURIntroductionWhat’s in the BoxThe CDC FOUR console is shipped in a triwall carton. Before unpacking, inspect that the carto

80Revision 1 2012-13 CDC FOURMaintenance pageNOTE: Selecting the Maintenance page from the System Settings page stops the CDC FOUR’s main operating pr

Revision 1 2012-13CDC FOUR81Ensure that an Ethernet cable with Internet connection is plugged into the CDC FOUR’s rear panel RJ45 socket. Reboot by po

82Revision 1 2012-13 CDC FOURConnecting the CDC FOUR to unbalanced sources and desti-nationsAll inputs and outputs on the CDC FOUR are electronically

Revision 1 2012-13CDC FOUR83

Revision 1 2012-13CDC FOUR9consoles. All the functions of the single, assignable, largely-standard channel strip are duplicated on the high-resolution