Loyola Enterprises

A veteran and minority owned SDB Certified Business.

Allen & Heath

Allen & Heath GL2800M

757.498.6118 Ext - 109GL2800M - Call for pricing - Dual-Function Live Sound Mixer


PDFGL2800M Brochure (pdf)

PDFGL2800M User Guide (pdf)

The GL2800M is a brand new dedicated monitor console packed with innovative features. Using the best Allen & Heath analogue technology it offers great sound and reliability with an intuitive, walk-up-and-go layout in a space saving, ruggedly built chassis.

Top end monitor mix capability is now accessible to the budget conscious sound provider. The popular GL Series has grown with the addition of the GL2800M, a dedicated monitor console offering an easy to use, innovative tool set for simultaneously mixing large numbers of wedges and in-ears. With the benefits of personal freedom, a tailored mix for each musician and a quiet stage, IEM monitor systems have become increasingly popular with performers and engineers alike. Although IEM has become a lot more affordable, the console required to run them properly is typically too large, complex or expensive for all but the biggest budgets. Meet the GL2800M… affordable, capable and easy to use—without compromise, exactly right for the job.

With its 16 mixes and true stereo IEM capability, the GL2800M is able to handle many combinations of wedge and in-ears, and even includes a built-in mic splitter. The engineer is provided with dual listen wedge/IEM monitoring as well as a host of useful tools for setting up the system.


  • 24, 32, 40 and 48 channel frame sizes
  • 16 mixes globally assigned as mono or stereo with level and pan
  • Built-in mic splitter with ground lift switching
  • All masters include polarity switch, swept HPF and 6dB dim function
  • Mix 1-8 include 2 band swept frequency output EQ
  • Engineer’s IEM and wedge monitors with faders, meters, inserts and XLR
  • IEM/wedge monitor external inputs for FOH comms and IEM rack monitoring
  • Mix AFL assignable to either wedge or IEM monitor
  • PAFL logic includes PFL override AFL, mono/stereo AFL, PFL to wedge enable
  • Headphones follow IEM mode, includes ¼" and 3.5mm jacks
  • Talkback with independent selection to all mixes and external output
  • Talk latch mode for use with switched hand held talkback mic
  • Built-in oscillator/pink noise generator assignable to any mix output
  • Built-in dual supply combiner for additional power supply as a backup
  • 4 mute groups
  • Compact footprint ideal for flight casing and saving space at side of stage
  • Solid, individual card, nutted pot construction in a no nonsense all steel chassis
  • The best of analogue - great sound, reliable and easy to use

Operating Levels
Channels Headroom +20 dB
Mix Headroom +22 dB
Max. XLR Output +26 dBu
Max. XLR Input (inc. pad) +34 dBu
Frequency Response (+0/-1dB) 20 Hz–50 kHz
THD + Noise @ 1 kHz < 0.003%
Mic CMRR @ 1 kHz > 80 dB typ.
Channel HPF 12 dB/octave below 100 Hz
Crosstalk @ 1 kHz
Adjacent Channel > 90 dB
Mute Shutoff > 88 dB
Fader Shutoff > 90 dB
Noise Performance (22Hz-22kHz unweighted)
Mic EIN -128 dB
Residual Output Noise < -96 dBu (-100 dB S/N)
Mix Noise - 24 routed < -80 dBu (-84 dB S/N)
Connection Impedances
Mic Inputs 2 kΩ
Line Inputs > 10 kΩ
Outputs < 75 Ω
Max. Boost/Cut (each band) ± 15 dB
Mono Channel HF 12 kHz shelf
Mono Channel LM 35 Hz–1 kHz, Q=1.8
Mix 1-8 HM 500 Hz–12 kHz, Q=1.6
Filter (mono input) 100 Hz
Mono Channel HM 500 Hz–15 kHz, Q=1.8
Mono Channel LF 80 Hz shelf
Mix 1-8 LM 80 Hz–2 kHz, Q=1.6
Sensitivity 0VU = +4 dBu at XLR out
Peak Indication Threshold 5 dB before clipping
Master Meters 12 seg. (-30 to +16 dB)
Channel Meters 4 seg. (-12, 0, +6, +16 dB)
Dimensions (HxWxD) and Weights
24 Channel 17.0 x 94.4 x 65.0 cm 6.7" x 37.2" x 25.6" 29 kg (63.8 lbs)
32 Channel 17.0 x 117.1 x 65.0 cm 6.7" x 46.1" x 25.6" 35 kg (77.0 lbs)
40 Channel 17.0 x 139.8 x 65.0 cm 6.7" x 55.0" x 25.6" 41 kg (90.2 lbs)
For pricing options and packages, contact us at
757.498.6118 Ext - 109, Or