Allen & Heath GL2800-832 32-Channel 8-Bus Live Sound Mixer

Allen & Heath GL2800-832 32-Channel 8-Bus Live Sound Mixer

Allen & Heath GL2800-832 32-Channel 8-Bus Live Sound Mixer

B&H # ALGL2800832 MFR # GL2800-832
Allen & Heath GL2800-832 32-Channel 8-Bus Live Sound Mixer

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Allen & Heath GL2800 overview

  • 1Description

The GL2800-832 is an 8-bus dual-function analog mixing console designed for professional audio applications. Whether mixing FOH, monitors, or both, recording live or in the studio, installed in a busy venue, out on the road touring, or earning its keep in rental stock, this mixer provides a suitable solution. It ensures the highest reliability and fine sonic performance.

This mixer offers a well thought out feature set built into rugged, small-footprint chassis suitable for flight casing and venue installation where space is tight. It is equipped with 10 auxiliary sends, including a dedicated stereo auxiliary and using the 12x4 matrix console, it is suitable for IEM and stereo recording. 8 audio groups and L, R, and M busses are also provided, allowing for full dual functionality with 10 mixes, faders, inserts, and XLR drive. The mixer features 32 channels including 2 stereo channels.

32 channel frames
L, R, and M main mixes
8 audio groups with pan and routing to L, R, and M
10 auxes including a dedicated stereo send
2 multifunction stereo channels each with mic and stereo line inputs
2 extra dual stereos provide 4 summed or independent stereo returns
Fully featured 12x4 matrix
Proper dual functionality for FOH/monitor mixing
Recording capable with channel direct outputs
M can be used for center/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
100 Hz channel high pass filters
Individual phantom power and polarity switching
Wide-angle channel and master meters
Dedicated stereo monitor meters
Per channel pre/post fader aux switching for full flexibility
Recessed pre/post-EQ aux switching per channel
Internal jumper plugs for aux, direct out, and other options
Mutes on all fader masters
100 mm dust-protected faders
Assignable talkback to all outputs, includes a talk switch latch mode
1kHz oscillator / pink noise generator with patchable external output
2-track monitoring and replay to LR
3 headphones / earpiece sockets and local monitor outputs
Electronically balanced XLR outputs with +26 dBu drive capability
Preamp 74 dB range with +34 dBu input capability for mic or line
Ultra low noise mix head amplifier 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 and LED lamp (Allen & Heath LED lamp sold separately)
In the Box
Allen & Heath GL2800-832 32-Channel 8-Bus Live Sound Mixer
  • Limited 1-Year Warranty on Parts & Labor
  • Table of Contents
    • 1Description

    Allen & Heath GL2800 specs

    Maximum Input Level Mic: +34 dBu (inc pad)
    CH Line: +34 dBu
    Other Line: +20 dBu
    Maximum Output Level XLR: +26 dBu
    Jack: +20 dBu
    Headroom Internal Headroom:
    Channels: +20 dB
    Mix: +22 dB
    Meters 3 color, quasi-peak response
    Master Meters: 12-segment, -30 to +16 dB
    Channel Meters: 4-segment, -12, 0, +6, +16 dB (5 dB before clip)
    Sensitivity 0VU = +4 dBu at XLR output
    Frequency Response 20 Hz to 50 kHz +/-0.5 dB
    THD + N Mic to Mix Out: <0.003% @ +14 dBu 1 kHz
    Crosstalk Fader Shutoff: >90 dB @ 1 kHz
    Mute Shutoff: >88 dB @ 1 kHz
    Inter Channel: >90 dB @ 1 kHz
    Noise Mic EIN: -128 dB, rms 22 Hz to 22 kHz
    Residual Output Noise: < -96 dBu (-100 dB S/N), rms 22 Hz to 22 kHz
    LR Mix Noise 24 Routed: < -86 dBu (-90 dB S/N), rms 22 Hz to 22 kHz
    Group Mix Noise 16 Routed: < -86 dBu (-90 dB S/N), rms 22 Hz to 22 kHz
    Aux Mix Noise 16 Routed: < -92 dBu (-90 dB S/N), rms 22 Hz to 22 kHz
    Mix Noise 24 line 0 dB Gain: < -86 dB S/N, rms 22 Hz to 22 kHz
    CMRR Mic CMRR at 1kHz: > 80 dB typical
    HPF Channel HPF: 12 dB / Octave Below: 100 Hz
    EQ Type Mono Channels HF Shelving: ±15 dB, 12 kHz
    HM Peak/dip: +/-15 dB, 500 Hz to 15 kHz, Q: 1.8
    LM Peak/dip: +/-15 dB, 35 Hz to 1 kHz, Q: 1.8
    LF Shelving: +/-15 dB, 80 Hz
    EQ Type Stereo Channels HF Shelving: +/-15 dB, 12 kHz
    HM Peak/dip: +/-15 dB, 2.5 kHz, Q = 1.8
    LM Peak/dip: +/-15 dB, 250 Hz, Q = 1.8
    LF Shelving: +/-15 dB, 80 Hz
    Power Supply External RPS11: IEC input
    External Input for optional: RPS11 backup supply
    Channel Mono Channel:
    XLR balanced pin 2 hot: Sensitivity: -60 to +14 dBu
    TRS balanced, tip hot: Sensitivity: -40 to +14 dBu
    Total Gain Range: 74 dB
    Pad out (MIC): 2 kΩ
    Pad in (MIC or LINE): >10 kΩ, -20 dB attenuation
    Max Input Level: +34 dBu
    XLR Phantom Power: +48 V, On/Off

    Stereo Channel:
    Microphone In: Same as mono channel
    Stereo in: TRS balanced >10 kΩ, -16 to +20 dBu
    Return Stereo Return:
    ST1/3: TRS unbalanced >10 kΩ, -16 to +20 dBu
    ST2/4: TRS balanced >10 kΩ, -16 to +20 dBu
    Talkback Mic XLR balanced pin 2 hot: Sensitivity -50 to -10 dBu
    Phantom power: Internal jumper +48 V (fitted)
    Sends/Returns 2-track Send: TRS Impedance Balanced: <75 Ω, -2 dBu
    2-track Return: TRS Unbalanced: >4 kΩ, -2 dBu
    Insert Channel: TRS, tip send, ring return, 0 dBu
    Output: TRS, tip send, ring return, -2 dBu
    Output L, R, M Outputs:
    XLR balanced pin 2 hot: <75 Ω, +4 dBu, +26 dBu maximum

    Group (Aux) Out:
    XLR balanced pin 2 hot: <75 Ω, +4 dBu, +26 dBu maximum

    Aux 1 to10 Output:
    TRS impedance balanced: <75 Ω, -2 dBu, +20 dBu maximum
    Electronic balance option: <75 Ω, +4 dBu, +26dBu maximum

    Direct Out:
    TRS impedance balanced: <75 Ω, 0dBu, +20 dBu maximum

    Matrix Out:
    TRS impedance balanced: <75 Ω, -2 dBu, +20 dBu maximum
    Electronic balance option: <75 Ω, +4 dBu, +26 dBu maximum

    Monitor Out:
    TRS impedance balanced: <75 Ω, -2 dBu, +20 dBu max

    Talkback / Osc Out:
    TRS impedance balanced: <75 Ω, +20 dBu max
    Headphone TRS, tip L, ring R, 30 to 600 Ω headphones recommended
    Lamp 4-pin XLR: maximum 12 V, 5 W lamp
    Dimensions (W x D x H) 46.1 x 25.6 x 6.7" (1171.0 x 650.0 x 170.0 mm)
    Weight 77.0 lb (35.0 kg)
    Packaging Info
    Package Weight 104.0 lb
    Box Dimensions (LxWxH) 52.0 x 34.0 x 13.0"

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