Overview - ALLEN & HEATH GL4000 User Manual

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The GL4000 offers the professional user an uncompromised feature set and
performance for live sound engineering and recording. The console is available in
24, 32, 40 and 48 channel sizes with an external 3U rack power unit. Options
include bolt-on expander module, SYS-LINK interconnect system and 1U dual
power supply monitor/combiner unit. Units from Serial Number 403421 include a
built-in VU Meterpod as standard. An optional VU Meterpod is available for earlier
units.
Dual function + live recording capability :
Large venue Front-of-House
Dedicated 12 buss (10mix+LR) stage monitor
Dual function combines Front-of-House and monitor
Live recording to 2-track and multitrack
24, 32, 40, 48 frame sizes including VU Meterpod
Stereo models include mic/stereo line channels depending
on customer specification
8 groups with inserts and trimmable balanced XLR outputs
L,R,M mix on balanced XLR and with inserts
10 Aux sends on balanced XLR and with inserts
4 Matrix capable of balanced XLR and inserts
Matrix to aux link feature for group effects and monitors
Secondary LR output capable of balanced XLR and inserts
Channel Direct outputs with level trim and pre/post
4 band full sweep channel EQ with mid Q switches
Stereo channel 4-point width control
Separate insert jacks with balanced returns
MIDI mute system with 128 patches
8 independent mute groups
Solo-in-place with QuickSolo feature
Full metering - channel, mix buss and outputs.
Monitor with stereo PFL, local output, 2 phones ...
Simultaneous stereo and mono PFL metering
Output meter selector switches for main or aux
Talkback to L-R, M, groups, matrix, and to each aux
2-track replay to L-R and monitor
The console is constructed using extruded aluminium beams, steel panels and
3mm thick metal side plates to ensure rigidity and mechanical reliability on the road,
as well as easy flightcasing. Individual circuit assemblies are accessible by removal
of the steel base. A durable but soft front armrest is provided for comfort. Front,
top and rear write-on strips are provided for channel marking. High quality proven
reliable parts are used throughout. High performance op-amp and discrete circuits
are used to ensure low noise and sonic purity.
The GL4000 reflects our commitment to providing the best audio mixing solutions
and customer support.
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