ALLEN & HEATH GL4000 User Guide

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Publication ............. AP2642 Issue 3copyright © 2001 ALLEN & HEATH. All rights reserved
USER GUIDE
CONTENTS
Warranty ............................................................... 2
Introduction ........................................................... 3
Overview .............................................................. 4
Range and Options ............................................... 5
Dimensions and Weights ...................................... 6
Specifications ....................................................... 7
System Block Diagram ......................................... 8
Connectors ......................................................... 10
Earthing .............................................................. 13
Connecting the Power Unit ................................. 14
Matching the Signal Levels ................................. 15
Mono Input Channel ........................................... 16
Stereo Input Channel .......................................... 18
Stereo Channel Applications............................... 19
Group Section .................................................... 20
LR Section .......................................................... 21
Mono and Master Section ................................... 23
The Mute System ............................................... 26
Mute Groups ....................................................... 28
Mute Safes ......................................................... 31
Mute Patches ..................................................... 32
The Patch Display .............................................. 33
QuickSolo ........................................................... 36
Solo Safes .......................................................... 37
MIDI .................................................................... 38
Technical Support............................................... 42
Front-of House Application ................................. 44
On-Stage Monitor Application ............................. 48
Multi-Speaker System Application ...................... 51
Internal Link Options ........................................... 52
Panel Layout Drawing ............................. rear cover

ALLEN & HEATH GL4000 Specifications

General

Type	Analog Mixing Console
Groups	8
Faders	100mm
Frequency Response	20Hz - 20kHz
Channels	40
Mic/Line Inputs	40
EQ	4-band with 2 sweepable mids
Direct Outputs	Yes
Phantom Power	Yes
Metering	LED
Total Harmonic Distortion	< 0.005% at 1kHz
Noise (EIN)	-128dB
Dimensions	Varies depending on frame size. e.g., 40 channel: 1367mm (W) x 724mm (D) x 223mm (H)