WZ
3
20S User Guide 5
Introduction
Welcome to the Allen & Heath WZ
3
20S, one of the latest generation of the popular
MixWizard series of compact audio mixing consoles. We have tried to keep this user guide
brief and to the point. Please read it fully before starting. Included is information on
installing, connecting and operating the console, panel drawings, system block diagram and
technical specification. For further information on the basic principles of audio system
engineering, please refer to one of the specialist publications and resources available from
bookshops, audio equipment dealers and the Internet.
Whilst we believe the information in this guide to be reliable we do not assume responsibility
for inaccuracies. We also reserve the right to make changes in the interest of further product
development.
We are able to offer further product support through our world-wide network of approved
dealers and service agents. You can also access our Web site on the Internet for
information on our full product range, our company pedigree, assistance with your technical
queries, our contact details or simply to chat about matters audio. To help us provide the
most efficient service please keep a record of your console serial number, and date and
place of purchase to be quoted in any communication regarding this product.
www.allen-heath.com
Contents
Warranty ................................................ 2
General Precautions.............................. 4
Introduction to this Guide...................... 5
Front Panel Layout ................................ 6
Introducing the MixWizard .................... 7
Installing the Console............................ 8
Connecting Power................................. 9
Connecting a Backup Supply ...............9
Connector Pinouts and Cables ........... 10
Audio Connections.............................. 11
Connector Panel Layouts.................... 12
Console Connectors ........................... 13
Wiring Inserts....................................... 13
Mono Input Channel............................15
EQ curves ............................................15
Stereo Input Channel........................... 17
EXT1 and EXT2 Inputs.........................18
Master Section.....................................19
AB Output ............................................20
Gain Structure......................................21
Application Notes ................................22
Specifications ......................................24
Part Numbers....................................... 25
System Block Diagram ........................26
User Options – Channel Cards ...........28
Sys-Link V2 Option ..............................29
User Options – AB Relay switch..........30
Cue Sheet ............................................31
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