USER GUIDE Publication AP7028 Issue 2
Allen & Heath 2 ZED-4 BUS User Guide
Limited One Year Manufacturer’s Warranty Allen & Heath warrants the Allen &Heath -branded hardware product and accessories contained in the original packaging ("Allen & Heath Product”) against defects in materials and workmanship when used in accordance with Allen & Heath's user manuals, technical specifications and other Allen & Heath product published guidelines for a period of ONE (1) YEAR from the date of original purchase by the end-user purchaser ("Warranty Period").
PACKED ITEMS Check that you have received the following: DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 MIC1 MIC2 MIC3 MIC4 MIC5 MIC6 MIC7 MIC8 MIC9 MIC10 MIC11 MIC12 MIC13 MIC14 MIC15 MIC16 ST1 IN L R DIR OUT AUX OUT ST3 IN L R AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6 GRP 1 GRP 2 GRP 3 48V LINE IN 48V LINE IN 1 48V LINE IN
SAFETY INSTRUCTIONS WARNINGS - Read the following before proceeding : CAUTION AC MAINS IN ~ ATTENTION: RISQUE DE CHOC ELECTRIQUE – NE PAS OUVRIR FUSETYPE T 3.15A 20mm T 5.0A 20mm AC SUPPLY 220 - 240V~ 100 - 120V~ 47-63Hz 320VA MAX 300WMAX Read instructions: Retain these safety and operating instructions for future reference. Adhere to all warnings printed here and on the console. Follow the operating instructions printed in this User Guide.
SAFETY INSTRUCTIONS Important Mains plug wiring instructions The console is supplied with a moulded mains plug fitted to the AC mains power lead. Follow the instructions below if the mains plug has to be replaced.
CONTENTS Thank you for purchasing your Allen & Heath ZED mixer. To ensure that you get the maximum benefit from the unit please spare a few minutes familiarizing yourself with the controls and setup procedures outlined in this user guide. For further information please refer to the additional information available on our web site, or contact our technical support team. http://www.allen-heath.com http://www.allen-heath.com/zed http://www.myspace.com/thezedspace Warranty .....................................
PANEL DRAWINGS—ZED420 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: CAUTION ON 0 I T1.6A L 250V 20mm AC MAINS IN ~ ALLEN&HEATH (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. RISK OF ELECTRIC SHOCK DO NOT OPEN FUSE OFF AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. 100 - 240V~ 47-63Hz 60W MAX Serial No.
PANEL DRAWINGS—ZED428 1 DIR OUT MIC1 2 DIR OUT MIC2 3 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. MIC5 5 DIR OUT WARNING: THIS APPARATUS MUST BE EARTHED 4 DIR OUT MIC4 5 LINE IN 48V This device complies with Part 15 of the FCC Rules.
PANEL DRAWINGS—ZED436 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUE- NEPAS OUVRIR. (1) this device may not cause harmful interference, and This device complies with Part 15 of the FCCRules. Operation is subject to the following two conditions: (2) this device must accept any interference received, including interference that may cause undesired operation. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OFFIRE REPLACE FUSE WITH SAME TYPEAND RATING.
INTRODUCTION TO THE ZED-4 BUS MIXERS A Technical Overview: The Allen & Heath ZED-4 mixer has been carefully and lovingly designed in the beautiful county of Cornwall in the UK and is manufactured alongside a wide range of professional audio mixing consoles.
SPECIFICATIONS Operating Levels Inputs Mono channel (XLR) Input +6 to –63dBu for nominal (+17dBu in max) Mono channel Line Input (Jack socket) +10 to –26dBu (+30dBu maximum) Insert point (TRS Jack socket) 0dBu nominal +21dBu maximum Stereo Input (Jack sockets) 0dBu nominal (control = Off to +10dB) Stereo input (phono sockets) 0dBu nominal (control = Off to +10dB) 2 Track Input (phono sockets) 0dBu nominal +21dBu maximum Outputs L, R & Mono Outputs (XLR) +4dBu nominal. +27dBu maximum.
Dimensions 50 120 129 3 R2 DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 MIC1 MIC2 MIC3 MIC4 MIC5 MIC6 MIC7 MIC8 MIC9 MIC10 MIC11 MIC12 MIC13 MIC14 MIC15 MIC16 ST1 IN L R DIR OUT AUX OUT ST3 IN L R AUX 1 AUX 2 GRP 1 GRP 2 AUX 3 AUX 4 AUX 5 AUX 6 GRP 3 48V LINE IN 48V LINE IN 1 48V LINE IN 2 INSERT 48V LINE IN
BLOCK DIAGRAM GAIN LINE IN +48V + + - GAIN GAIN 100Hz LR CHAN GAIN LR HPF INSERT SUM + LM SIGNAL PEAK HM 4 BAND EQUALISER MONO CHANNEL LF LF HF HF STEREO CHANNEL HF L R AUX 1-4 + PLAYBACK SOURCE 4 BAND EQUALISER LF 2 TRACK IN ST3 INPUT SOURCE USB RETURN GAIN TALKBACK EQ IN FACTORY SOLDER LINK L-R + + DIRECT OUT EQ IN PEAK SIGNAL PLAYBACK LEVEL PFL MUTE MUTE PFL PFL + FADER PRE FADER PRE M L-R 1-2 3-4 M L-R 1-2 3-4 MIX BUSES PFL ACTIVE LR / M TIP S
MONO INPUT CHANNEL DIR OUT 1 1 1 Direct Output Socket Standard 1/4” (6.25mm) Jack socket. Wired Tip=Hot(+), Ring=cold (-), Sleeve=Chassis. For recording individual channels, factory default is prefade signal (post mute). The nominal level is 0dBu and the output is impedance balanced. MIC1 2 2 3 3 Microphone Input Socket Standard 3-Pin XLR socket wired as Pin 1=Chassis, Pin 2=hot (+), Pin 3=Cold (-).
MONO INPUT CHANNEL HF EQ HF 6 6 12k The HF (High Frequency) equaliser affects the frequency response of the higher audible frequencies. The corner frequency of 12kHz is around 3dB from the maximum cut or boost of the circuit. ZED4 HF EQ dBr 20.00 -15 1k 3k + 15 4k 700 15.00 10.00 6k 5.00 0.00 7 500Hz 15k HM -5.00 -10.00 -15.00 -20.00 20.00 Hz -15 70 180 + 15 250 45 7 400 100.00 1000.00 10000.00 30000.
MONO INPUT CHANNEL 9 LF 9 LF EQ The LF (Low Frequency) equaliser affects the response at the low end of the audio range. The graph shows the response of the LF EQ at maximum cut and boost. The corner frequency is 80Hz. ZED4 LF EQ 80Hz dBr 20.00 -15 + 15 15.00 10.00 EQ IN 10 5.00 0.00 AUX1 PRE -5.00 -10.00 11 OO -15.00 +6 AUX2 -20.00 20.00 Hz 100.00 1000.00 10000.
MONO INPUT CHANNEL PAN = PAN 14 14 L ODD 15 R EVEN The pan control adjusts how the signal from the mono input channel is shared between the left and right buses and subsequently the main stereo outputs, similarly to pairs of Groups. Set to the mid position, equal amounts of signal are fed to left and right, with pan set to L, none is sent to the Right bus.
STEREO INPUT CHANNEL ST1 IN 1 L 1 R L/M 4 ST2 IN R ST1 LEV 2 -10 3 4 -5 0 -20 5 -30 3 To LR To CH ST2 -10 LEV Stereo Inputs 1 (& 3) Level control Adjust the level of the stereo inputs 1 & 3 from off (fully attenuated) to maximum where it has 10dB of gain. ST1 (& 3) Routing selector switch This switch selects whether the ST1 (or ST3) signal is sent to the L R bus directly, or the stereo channel below.
STEREO INPUT CHANNEL 6 HF STEREO Channel EQ The EQ on the stereo Channel is 4 band, fixed frequency and comprises a shelving high frequency section, a shelving low frequency section and two fixed mid frequency controls. 12k STEREO HF EQ ZED4 STEREO HF EQ -15 + 15 dBr 20.00 HM 15.00 10.00 5.00 2k5 0.00 -15 + 15 -5.00 6 LM -10.00 -15.00 -20.00 250Hz 20.00 Hz -15 100.00 + 15 LF 1000.00 10000.00 30000.00 STEREO LF EQ ZED4 STEREO LF EQ dBr 20.00 15.00 10.00 80Hz 5.
STEREO INPUT CHANNEL AUX1 8 PRE 8 OO +6 OO +6 Auxes 1 & 2 Auxes 1 & 2 send a mono sum of the stereo channel left & right signals sourced from pre-fader. AUX2 PRE AUX3 9 OO +6 OO +6 9 Auxes 3 & 4 10 Auxes 5 & 6 Again, a mono sum of the stereo channel left & right signals, the source being switchable pre or post fader. AUX4 POST PRE Auxes 5 & 6 take their source from a mono sum of the stereo channel left & right signals after the fader.
MATRIX OUTPUTS & AUX MASTERS GRP GRP 1 Matrix Outputs 1 +6 OO GRP There are two matrix sub-mix sections in ZED-4. The send controls (black & red knobs) take the post-fade signals from the Group, Left, Right and Mono mix paths and send them to the Matrix output. Matrix outputs 1 & 2 are individual mono outputs. There is a master level control to adjust the overall output level, and an AFL (after fade listen) switch to check the Matrix mix.
GROUP MASTERS 6 L-R L-R L-R L-R M M M M = 5 = PAN = PAN L R 4 3 L R PK! +6 0 SIG PK! +6 0 SIG 1 2 3 4 AFL MUTE AFL AFL 10 10 10 5 5 5 5 0 0 0 0 5 5 5 5 10 10 10 10 20 20 20 20 30 30 30 30 OO OO OO OO GRP2 Group AFL 3 MUTE 10 GRP1 Allen & Heath R PK! +6 0 SIG AFL 1 L MUTE 2 The Group fader is fed with the Group mix signal via the Group Insert point. The fader has 100mm of travel and there is +10dB of gain at its maximum position.
L R & M MASTERS and HEADPHONES Main Mix Fader PHONES LEVEL 4 1 MIN MAX The L, R & M faders follow the mix insert points. The faders have 100mm of travel and 10dB of gain at the top. LR M Main Mix Mute 3 2 PK! +6 0 SIG PK! +6 0 SIG PK! +6 0 SIG L R M MUTE MUTE 2 Cuts the signal from the main mix output. Illuminates red when cut. Also cuts the signal from the associated Matrix feed and the headphones monitor.
MAIN METERS & TALKBACK PHONES 1 3 TB MIC Main Meters The main Left & Right meters will show the signal level at the main LR mix outputs or the main M mix output depending on the selector switch below the Phones Level control. If any PFL or AFL switch is pressed the meters will show that signal level. Basically, the meters show the headphones monitor signal pre the headphones level control. The PFL/AFL active LED illuminates if any PFL or AFL switch is pressed.
USB SECTION & PLAYBACK 4 USB RETURN 1 SEND ST3 INPUT SOURCE 2 ST3 IN USB 3 2TRK USB PLAYBACK SOURCE 2 USB Send Source Selection The USB source selection switches determine which signals are sent out on the USB interface. If all the switches are up the main LR mix post-fade signal is sent. Other sources available are the pre-fade main LR mix, Auxes 5&6, Auxes 1&2 and Matrix 1&2.
USB CONNECTION OUT 6 ST1 IN C16 AUX OUT ST3 IN L L R R AUX 1 AUX 2 AUX 3 AUX 6 MAIN OUT INSERT L GROUP OUT GRP 1 GRP 2 GRP 3 2TRK IN GRP 4 L L/M 6 R INSERT R L/M ST2 IN ST4 IN R R INSERT 1 INSERT 2 MTX 1 MTX 2 INSERT 3 R INSERT 4 2TRK OUT ERT M INSERT M L 6 USB MATRIX OUT STEREO INPUTS RETURN SEND R PHONES ST1 LEV ST3 -5 -10 -10 LEV 0 -20 ST3 INPUT SOURCE -5 0 GRP -20 5 -30 6 10 OO To LR To CH ST2 -10 ST4 -10 -5 0 LEV 0 -20 5 -30 +6 OO
INSERT R INSERT 3 R INSERT 4 USING USBMFOR EFFECTS 2TRK OUT INSERT M L 5 USB MATRIX OUT RETURN SEND R 4 6 PHONES ST3 INPUT SOURCE ST3 IN USB 6 7 9 2TRK USB PLAYBACK SOURCE 8 TB MIC TB LEVEL 6 USB SEND SOURCE 3 MTX 1-2 6 MIN MAX Talk to AUX 1-4 AUX 1-2 LF 6 AUX 5-6 80Hz 2 LR pre-fade + 15 -15 6 Talk to LRM POWER All up = LREQ postIN 1 AUX1 6 PRE PLAYBACK LEVEL 2 +6 OO AUX2 6 3 +6 PRE OO PLAYBACK To LR 6 AUX3 PFL FL the channel the track in the software
WIRING NOTES PROCESSOR Insert cable wiring RETURN S INSERT T OUT T R S R SEND GROUND RETURN SEND S T R IN LINK RING TO SLEEVE TO UNBALANCE Y-Adapter Y-Adapter 2 Outputs to 1 Input RCA PHONO CABLE RCA phono jacks 1 Output to 2 Inputs adapter UNBALANCED No ! UNBALANCED INSTRUMENT CABLE UNBALANCED BALANCED TRS JACK CABLE BALANCED Sleeve=ground Sleeve=ground Ring=cold (-) Ring=cold (-) Tip=hot (+) TO INPUT Tip=hot (+) 2=hot (+) 1=ground BALANCED MIC CABLE BALANCED 1=ground
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