ALLEN & HEATH GL3000 User Manual

GL3000 USER G UIDE ISS.1
15
INTERNAL LINK OPTIONS
The console is set to satisfy most applications that should be encountered. However, the following internal
link options are offered to provide alternative settings for those applications that may require them. These
options involve resoldering of circuit board links and should only be carried out by competent technical
personnel. Further information is available in the GL3000 SERVICE MANUAL and from your agent.
MONO INPUT
1. Reconfigure each aux as required to be
permanently pre-fade or post-fade rather than
switched by the front panel PRE/POST switch.
2. Reconfigure the pre-fade sends to be post-
EQ / pre-mute, or pre-EQ / post-mute, instead
of the standard post-EQ / post-mute.
3. Disable +48V phantom power regardless
of panel switch position - remove link.
STEREO INPUT
1. Reconfigure each aux as required to be
permanently pre-fade or post-fade rather than
switched by the front panel PRE/POST switch.
2. Reconfigure the pre-fade sends to be post-
EQ / pre-mute, or pre-EQ / post-mute, instead
of the standard post-EQ / post-mute.
3. Disable +48V phantom power regardless
of panel switch position - remove link.
LEFT
1. Reconfigure the LR sum source (mono)
from post LR faders to pre faders.
2. Enable +48V phantom power to talkback
mic input - fit link.
GROUP
1. Fit Matrix out balance option for jack
output tip = hot, ring = cold. Remove two links and
plug in balance driver IC.
2. Reconfigure the feed to the optional VU
meterpod to follow the aux master rotary control
rather than the group fader - remove two resistors
and link two pairs of pads with a length of wire.

ALLEN & HEATH GL3000 Specifications

General

Brand	ALLEN & HEATH
Model	GL3000
Category	Music Mixer
Language	English

Summary

Warranty Information

Conditions of Warranty

Outlines the terms and conditions for product warranty coverage.

Introduction and Technical Support

Introduction

Gives a brief overview of the GL3000's capabilities and the purpose of the guide.

Service and Technical Support

Explains how to get service and support for the console.

Safety and Precautions

Power Supply Unit Installation

System Setup and Connections

Earthing the Audio System

Details the importance and procedure for proper audio system earthing.

Plugging Up the Cables

Provides guidance on connecting audio cables correctly to minimize noise.

Adjusting the Levels

Explains how to set signal levels for optimal performance and signal-to-noise ratio.

GL3000 Features Overview

Front Panel Layout

The GL3000 Range

Specifications and Connections

Electrical Specifications

Lists detailed electrical parameters, frequency response, distortion, and noise levels.

Connections

Details the types and wiring conventions for all input and output connectors.

Input Channel Operation

Mono Input Channels

Explains setup for mono sources, including phantom power, phase, and gain adjustment.

Stereo Input Channels

Describes setup for stereo sources, including gain adjustment and stereo/mono selection.

Aux Sends and Channel Processing

8 Aux Sends

Details the 8 aux send outputs for monitors and effects, including pre/post switching.

Channel Processing Controls

Covers mute, pan, faders, meters, and PFL/AFL functions on individual channels.

Groups and Subgrouping

Groups and Monitor Mode

Explains group outputs and the use of mode switches for monitor configurations.

Subgrouping Techniques

Illustrates how to group channels for better control and stereo imaging.

Stereo Returns, Outputs, and Monitoring

Stereo Returns

Describes the function and connection of stereo return inputs for effects.

L,R,M Outputs

Details the main L, R, and Mono outputs, including insert points and balancing.

Phones Monitor and Mode

Explains headphone monitoring options and the selection of monitor modes.

Ancillary Functions

Talkback System

Details the talkback microphone input and its functionality for stage communication.

2-Track Recorder Interface

Describes the connections for stereo recorders, including send and return levels.

Matrix Outputs

Explains the application and configuration of the matrix outputs for additional routing.

Internal Link Options

Mono and Stereo Input Link Options

Details internal link configurations for aux send behavior and phantom power.

Left, Group Link Options

Covers link options for the LR sum source and group meter/matrix feeds.

GL3000 Block Diagram