GL2400 is a compact, dual function, LR, Mono sum, 4 group, 6 aux, 7×4 matrix console.

Features

•  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 
•  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.

Specifications

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

Dimensions

• Width Depth 817mm (32.2”)  
• Height 560mm (22”) 150mm (5.9”)        
• Weight 21.5 kg (47.3 lbs)