Allen and Heath GL2400-24 Live Mixer

More details:

This mixer is designed for professional applications. Whether mixing FOH, monitors, or both, recording live or in the studio, installed in a busy or house of worship, out on the road touring or earning its keep in rental stock, the GL2400 provides the perfect solution.

Engineered for modern engineering techniques, every detail in this mixer has been carefully thought out to provide the very best mixing experience. For example, the mono output can be configured as LR sum, wedge, or aux-fed sub or centre master. In Monitor mode, all six auxes are available on faders with mutes, inserts, meters and XLR drive. The new 7x4 matrix with ambient mic capability opens up a huge number of mixing applications, including stereo recording, zone feeds, delay fill speakers and stereo in-ear monitor mixes.

We have worked hard at the design of the audio circuitry in this mixer, and with its amazing headroom and new ultra-quiet mix head amp, we believe that this is our best performance yet!

Features/Specifications:

• 16, 24, 32, 40 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
• 7x4 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 +34dBu maximum input capability for mic or line
• Ultra low noise mix head amp design
• Internal power supply with MPS12 backup supply input (16 to 32 models)
• External RPS11 power supply and socket for backup supply (40 model)
• 100mm dust protected faders
• Metal jacks, gold-plated XLRs, sealed pots and switches
• Individual circuit card assembly with nutted pots
• Solid copper bus bar grounding
• Sys-Link V2 console linking option
• 4-pin XLR lamp sockets

Further Specs:

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

• Width: 817mm (32.2")
• Depth: 560mm (22")
• Height: 150mm (5.9")

• 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