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Allen & Heath GL2400-424

Allen & Heath GL2400-424


Allen & Heath

  • £2,198.00
Usually shipped within 2-3 working days

The GL2400 is a compact, dual function, LR, Mono sum, 4 group, 6 aux, 7×4 matrix console. Frame sizes range from 16 to 40 channels, including 2 dual stereo channels.

Allen & Heath's GL2400 is a mixing classic, industry standard in venues, churches and hire stockists across the globe.

The ultimate 4 group dual-function mixer, the GL2400 is designed for the latest in modern engineering techniques, and every detail in this uniquely capable small footprint mixer has been carefully thought out to provide the very best mixing experience.


  • 24 channel frames
  • LR and M main outputs
  • 4 Audio groups with pan control
  • 6 Auxiliary sends with per-channel pre/post fader switching
  • 2 stereo channels, each with mic and dual stereo line inputs
  • 7×4 Matrix
  • Proper dual functionality for FoH and/or Monitor mixing
  • M can be configured as LR sum, Wedge, or Aux-Fed Sub or C master
  • Recording capable with channel direct outputs
  • Matrix external inputs with level trims and common input capability
  • Stereo channel line inputs can be independently routed to LR
  • Stereo channel mic input breakpoints for cross patching into matrix
  • Responsive 4 band, 2 sweep EQ
  • 100Hz channel high pass filters
  • Individual phantom power and polarity switching
  • Dedicated channel, master and stereo monitor meters
  • Internal jumper plugs for pre/post-EQ aux, direct out and other options
  • Mutes, meters and AFL on all fader masters
  • Assignable talkback
  • 1kHz oscillator and pink noise generator
  • 2-track monitoring and replay to LR
  • Headphones 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
  • Internal power supply with socket for MPS12 backup supply (16ch to 32ch models)
  • 100mm dust protected faders
  • Metal jacks, gold-plated XLRs, sealed pots and switches
  • Individual circuit card assembly with nutted pots
  • Sys-Link V2 console input/output linking option
  • 4-pin XLR lamp sockets – Allen & Heath LED lamp available.



  • Performance
    • Maximum input level
      • Mic +34dBu (inc pad)
      • CH Line +34dBu
      • Other Line +20dBu
    • Maximum output level
      • XLR +26dBu
      • Jack +20dBu
    • Internal headroom
      • Channels +20dB
      • Mix +22dB
    • Meters 3 colour LED, quasi peak response
    • Sensitivity 0VU = +4dBu at XLR output
    • Master meters 12 segment -30 to +16dB
    • Channel meters 4 segment -12,0,+6+16dB (5dB before clip)
    • Frequency response 20Hz to 50kHz +/-0.5dB
    • Mic CMRR at 1kHz > 80dB typical
    • THD+n at +14dBu 1kHz Channel to mix out < 0.003%
    • Crosstalk at 1kHz
      • Fader shutoff >90dB
      • Mute shutoff >90dB
      • Inter channel >90dB
    • Noise, rms 22Hz to 22kHz
      • Mic EIN -128dB
      • Residual output noise < -96dBu (-100dB S/N)
      • LR mix noise 16 routed < -86dBu (-90dB S/N)
      • Group mix noise 16 routed < -86dBu (-90dB S/N)
      • Aux mix noise 16 routed < -92dBu (-90dB S/N)
      • Mix noise 16 line 0dB gain < -86dB S/N
    • Channel HPF 12dB/octave below 100Hz
    • Mono EQ
      • HF Shelving +/-15dB, 12kHz
      • HM Peak/dip +/-15dB, 500Hz to 15kHz, Q=1.8
      • LM Peak/dip +/-15dB, 35Hz to 1kHz, Q=1.8
      • LF Shelving +/-15dB, 80Hz
    • Stereo EQ
      • HF Shelving +/-15dB, 12kHz
      • HM Peak/dip +/-15dB, 2.5kHz, Q=1.8
      • LM Peak/dip +/-15dB, 250Hz, Q=1.8
      • LF Shelving +/-15dB, 80Hz
    • Power supply (16-32 ch)
      • Internal switched mode, auto sensing, IEC input
      • External input for optional MPS12 backup supply
    • Power supply (40 ch)
      • External RPS11 linear, IEC input
      • Console Input for second RPS11 as backup supply
  • Connections
    • Mono channel
      • XLR balanced pin 2 hot Sensitivity -60 to +14dBu
      • TRS balanced, tip hot Sensitivity -40 to +14dBu
      • Pad out (MIC) 2k ohm
      • Pad in (MIC or LINE) >10k ohm, -20dB attenuation
      • Max input level +34dBu
      • XLR phantom power +48V, on/off
    • Stereo channel
      • ST1,3 TRS unbalanced >10k ohm, -16 to +20dBu
      • ST2,4 TRS balanced >10k ohm, -16 to +20dBu
    • Talkback mic
      • XLR balanced pin 2 hot Sensitivity -50 to -10dBu
      • Phantom power Internal jumper +48V
    • 2-track return TRS unbalanced >4k ohm, -2dBu
    • 2-track send TRS impedance balanced <75 ohm, -2dBu
    • Inserts
      • Channel TRS, tip send, ring return, 0dBu
      • Output TRS, tip send, ring return, -2dBu
    • L, R, M outputs XLR balanced pin 2 hot <75 ohm, +4dBu, +26dBu max
    • Group (aux) out XLR balanced pin 2 hot <75 ohm, +4dBu, +26dBu max
    • Aux 1-6 output
      • TRS impedance balanced <75 ohm, -2dBu, +20dBu max
      • Electronic balance option <75 ohm, +4dBu, +26dBu max
    • Direct out TRS impedance balanced <75 ohm, 0dBu, +20dBu max
    • Matrix out
      • TRS impedance balanced <75 ohm, -2dBu, +20dBu max
      • Electronic balance option <75 ohm, +4dBu, +26dBu max
    • Headphones TRS, tip L, ring R, 30 to 600 ohm headphones recommended
    • Monitor output TRS impedance balanced <75 ohm, -2dBu, +20dBu max
    • Lamp 4-pin XLR max 12V 5W lamp

Physical & Dimensions

  • Height: 150mm
  • Width: 817mm
  • Depth: 560mm
  • Weight: 21.5kg

Manufacturer: Allen & Heath 

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