Allen&Heath GL2800 - Manual (Page 5)

GL2800 User Guide 5
Introduction
Welcome to the Allen & Heath GL2800, the latest generation of the popular GL series of
dual function live sound 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, resource downloads, our company pedigree, contact
details, assistance with your technical queries, or simply to chat about 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.
http://www.allen-heath.com
http://www.glseries.com
Contents
Warranty.................................................2
Important Safety Instructions ................3
General Precautions ..............................4
Introduction to this Guide......................5
Panel Layouts ........................................6
Introducing the GL2800....................8
Installing the Console ..........................10
Connecting Power ...............................11
Audio Connections ..............................13
The Console Connectors ....................14
Mono Input Channel............................16
Stereo Input Channel...........................18
Stereo Return Channel ........................19
Group/Aux Masters..............................20
Mute, Aux 9-10 and L-R-M Masters.....21
12x4 Matrix...........................................22
2-Track Replay and Console Monitor .23
Talkback and Signal Generator ..........24
Applications and Operating Tips.........25
Specifications ......................................34
System Block Diagram........................36
User Options........................................37
Cue Sheets ..........................................40
Gain Structure.................................................. 25
Using the Oscillator / Noise Generator ........... 26
Mixing with Faders or Gain Controls............... 26
Using PFL / AFL ............................................... 27
The dB.............................................................. 27
Using Inserts .................................................... 27
Polarity ............................................................. 28
Mixing the PA in Mono or Stereo? .................. 28
Zero the console.............................................. 28
Turning the System On or Off ......................... 28
Sound Levels ................................................... 28
Dual Functionality ............................................ 29
Applications for the Matrix............................... 30
Create IEM Mixes with Ambience ................... 31
Using the Matrix to Create a Recording.......... 31
Recording with the GL2800............................. 31
Pre/Post Fade Aux Settings ............................ 31
Mix and Aux-Fed Subs .................................... 32
Other M Output Applications........................... 32
Using the Channel Direct Outputs .................. 32
Using the Stereo Channels ............................. 33
A Note about Combining Signals ................... 33