The GL3800 features an enhanced capability for the latest in live sound mixing, and is truly dual-function with all 10 auxes configurable to fader control with insert point and XLR drive. Available in frame sizes up to 48 channels, with the choice of all mono, 4 or 8 stereo channels, the mixer also includes a meterpod with illuminated VUs, and front and rear ident strips.

This great sounding, well featured console has a familiar, walk-up-and-go layout and responsive feel, giving the engineer the very best of analogue console engineering.



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  • 24, 32, 40, and 48 channel frames
  • A,B,C,D mono/stereo channel options
  • LR and M main mixes
  • 8 Audio groups with pan and routing to LR and M
  • 10 Auxes including a dedicated stereo send with level and pan controls
  • 2 multi-function stereo channels each with mic and stereo line inputs
  • 2 extra dual stereos provide 4 summed or independent stereo returns
  • Fully featured 12×4 Matrix
  • Proper dual functionality for FoH, monitor mixing, or both
  • Recording capable with channel direct outputs
  • M can be used for centre/sub mix, LR mono sum, or engineers wedge
  • Matrix external inputs with level trims and common input capability
  • Stereo channel mic inputs can cross patch into matrix for ambience feed
  • Responsive 4 band, 2 sweep EQ
  • 100Hz channel high pass filters
  • Individual phantom power and polarity switching
  • Integral meterpod with 11 LED-illuminated, moving coil VU meters
  • Wide angle LED channel and master meters
  • Dedicated stereo monitor meters
  • Per channel pre/post fader aux switching for full flexibility
  • Front panel pre/post-EQ switches for user preference
  • Mutes on all fader masters
  • 100mm premium grade dual rail faders
  • Assignable talkback to all outputs, includes a talk switch latch mode
  • 1kHz oscillator / pink noise generator with external output
  • 2-track monitoring and replay to LR
  • 3 headphones/earpiece sockets and local monitor outputs
  • Electronically balanced XLR outputs with +26dBu drive capability
  • Preamp 74dB range with +34dBu input capability for mic or line
  • Ultra low noise mix head amp design
  • Uses RPS11 high performance, external linear power supply
  • Built-in combiner for redundant backup supply
  • Individual circuit card assembly with nutted pots
  • Sys-Link V2 console input/output linking option
  • 4-pin XLR lamp sockets –  Allen & Heath LEDlamp available.

Mono / Stereo Channel Options:

A = all mono channels
B = 4 stereos to right of masters
C = 4 stereos on far right side
D = 8 stereos on far right side

GL3800 Documents

Download brochures, user guides and other documents for this product.

Allen & Heath PDF
Large Format Live Sound Brochure Issue 4

Includes GL2400 GL2800 GL3800 and ML3000.

Allen & Heath PDF
GL3800 Syslink Applications Note Issue 2

SYS-LINK is an Allen and Heath connection standard for linking two analogue consoles together to expand the number of input channels feeding the mixes.