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USER GUIDE
Publication AP7028
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Limited One Year Warranty This product is warranted to be free from defects in materials or workmanship for period of one year from the date of purchase by the original owner. To ensure a high level of performance and reliability for which this equipment has been designed and manufactured, read this User Guide before operating. In the event of a failure, notify and return the defective unit to ALLEN & HEATH Limited or its authorised agent as soon as possible for repair under warr
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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 DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT AUX OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ST1 IN ST3 IN AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6 MAIN OUT L L L MIC1 MIC2 MIC 3 MIC 4 MIC 5 MIC 6 MIC 7 MIC 8 MIC 9 MIC 10 MIC 11 MIC 12 MIC 13 MIC 14 MIC 15 MIC 16 MIC 17 MIC
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SAFETY INSTRUCTIONS WARNINGS - Read the following before proceeding : CAUTION ATTENTION: RISQUE DE CHOC ELECTRIQUE – NE PAS OUVRIR 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. Do not remove cover: Operate the console with its covers correctly fitted. Power sources: Connect the console to a mains power unit only of th
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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. The wires in the mains lead are coloured in accordance with the following code: TERMINAL WIRE COLOUR European USA/Canada L LIVE BROWN BLACK ! N NEUTRAL BLUE WHITE E EARTH GND GREEN & YELLOW GREEN The wire which is coloured Green and Yellow must be connected to the
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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 ........
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PANEL DRAWINGS—ZED420 This device complies with Part 15 of the FCC Rules. CAUTION Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and FUSE RISK OF ELECTRIC SHOCK (2) this device must accept any interference received, DO NOT OPEN T1.6A L 250V 20mm including interference that may cause undesired operation. AC MAINS IN ~ OFF ON AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. 100 - 240V~ 47-63Hz 60W MAX 0 I ALLEN&HEATH Serial No. CAUTIO
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This device complies with Part 15 of the FCC Rules. CAUTION Operation is subject to the following two conditions: RISK OF ELECTRIC SHOCK (1) this device may not cause harmful interference, and (2) this device must accept any interference received, DO NOT OPEN including interference that may cause undesired operation. ALLEN&HEATH AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. FUSE CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING. T1.6A L 250V 20mm
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This device complies with Part 15 of the FCC Rules. CAUTION Operation is subject to the following two conditions: RISK OF ELECTRIC SHOCK (1) this device may not cause harmful interference, and (2) this device must accept any interference received, DO NOT OPEN including interference that may cause undesired operation. ALLEN&HEATH AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. FUSE CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING. T1.6A L 250V 20mm
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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. Many of the components used in ZED are exactly the same as in the larger Allen & Heath products and the construction methods are also very similar — utilising individual ver- tically mounted channel circuit boards with each rotary co
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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 ma
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Dimensions 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 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 AUX OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 ST1 IN ST3 IN AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6 MAIN OUT L L L MIC 1 MIC 2 MIC 3 MIC 4 MIC 5 MIC 6 MIC 7 MIC 8 MIC 9 MIC 10 MIC 11 MI
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ZED-4 BLOCK DIAGRAM MIX BUSES PHANTOM POWER SWITCH +48V MAIN OUT MUTE MONO CHANNEL L INSERT MAIN LR PFL TIP SEND BALANCED GAIN +4dBu NOMINAL +10dB EQ HPF LEFT 4 BAND EQUALISER IN MUTE M FADER R INSERT MUTE TIP SEND LINE IN PAN 100Hz INSERT LF LM HM HF L-R + + - - RIGHT 1-2 MIC IN 3-4 M INSERT MUTE +10dB TIP SEND MAIN M AUX1 MONO FACTORY SOLDER LINK AUX 2 PEAK PRE BALANCED OPTION AUX3 SIGNAL AUX1 FACTORY FIT +4dBu NOMINAL MASTER LEVEL AUX1 AUX 4 +10dB SERVICE CENTRE OPTION FIT DIRECT OUT IMPEDAN
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MONO INPUT CHANNEL Direct Output Socket DIR OUT 1 Standard 1/4” (6.25mm) Jack socket. Wired Tip=Hot(+), 1 Ring=cold (-), Sleeve=Chassis. For recording individual channels, factory default is prefade signal (post mute). 1 The nominal level is 0dBu and the output is impedance balanced. MIC1 Microphone Input Socket 2 Standard 3-Pin XLR socket wired as Pin 1=Chassis, Pin 2=hot (+), Pin 3=Cold (-). 2 48V Phantom Power Switch 3 Applies +48V to pins 2 and 3 of the XLR input though 6k
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MONO INPUT CHANNEL HF EQ HF The HF (High Frequency) equaliser affects the frequency response 6 of the higher audible frequencies. The corner frequency of 12kHz is around 3dB from the maximum cut or boost of the circuit. 6 12k dBr 20.00 -15 +15 15.00 3k 1k 4k 10.00 5.00 700 6k 0.00 500Hz 15k -5.00 HM 7 -10.00 -15.00 -20.00 20.00 Hz 100.00 1000.00 10000.00 30000.00 -15 +15 180 HMF EQ 70 250 7 The HMF (High Mid Frequency) equaliser affects the upper middle of the audible frequency ran
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MONO INPUT CHANNEL LF EQ 9 The LF (Low Frequency) equaliser affects the response at the low LF end of the audio range. The graph shows the response of the LF EQ at maximum cut and boost. The corner frequency is 80Hz. 9 dBr 80Hz 20.00 15.00 -15 +15 10.00 EQ IN 10 5.00 0.00 AUX1 -5.00 PRE -10.00 -15.00 OO 11 +6 -20.00 AUX2 20.00 Hz 100.00 1000.00 10000.00 PRE EQ IN 10 The EQ IN switch enables the equaliser when pushed in. The EQ is OO +6 bypassed when the switch is in its up position.
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MONO INPUT CHANNEL = PAN PAN 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 14 14 outputs, similarly to pairs of Groups. Set to the mid position, equal amounts L R of signal are fed to left and right, with pan set to L, none is sent to the Right ODD EVEN bus. 15 MUTE Mute Switch 15 This mutes or cuts the signal to the buses and the Direct Out. A rectangular PFL 16 LED illuminates to sho
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STEREO INPUT CHANNEL ST1 IN ST1 (& ST3) Phono sockets 1 These are stereo inputs additional to the main stereo channel in- puts (below). The gain is varied by the ST1 (& ST3) level control L and these inputs can be sent to either the stereo channels or straight to the L R main bus, depending on the setting of the under- panel switch. These inputs are unbalanced. 1 The source for the ST3 input can be switched from the phono sockets to the USB return signal with the selector switch below
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STEREO INPUT CHANNEL STEREO Channel EQ The EQ on the stereo Channel is 4 band, fixed frequency and com- 6 prises a shelving high frequency section, a shelving low frequency HF section and two fixed mid frequency controls. 12k STEREO HF EQ dBr -15 +15 20.00 15.00 HM 10.00 5.00 2k5 0.00 -5.00 -15 +15 -10.00 LM 6 -15.00 -20.00 20.00 Hz 100.00 1000.00 10000.00 30000.00 250Hz -15 +15 STEREO LF EQ dBr 20.00 LF 15.00 10.00 80Hz 5.00 0.00 -15 +15 -5.00 -10.00 EQ IN 7 -15.00 -20.00 10.00 Hz
