Allen & Heath - GX4816 Audio Expander


GX4816 is a 96kHz audio expander that provides high-input-count remote expansion for SQ, Avantis and dLive* mixing systems.

*dLive compatibility due in Firmware V1.9


Each GX4816 is loaded with 48 dLive mic preamps with independent Phantom Power LED indicators, plus 16 XLR line outputs. Additionally, 2 DX ports are provided for connection to up to 4 DX Expanders for further I/O expansion. Connection to a ME Personal Mixing System is possible via the DX2 socket.

GX4816 connects via a single Cat5e cable to an SLink socket on a SQ or Avantis, or to a gigaACE audio network card on a dLive system.

Connection to DX Expanders and the ME Personal Mixing System is also over Cat5e cable.



  • 48 Mic Preamps on XLR with Phantom Power status LEDs
  • 16 XLR Line Outs
  • 96kHz operation
  • DX1 Port – compatible with a single DX32, or up to 2 DX168/DX164-W expanders
  • DX2/ME Port – compatible with a single DX32, up to 2 DX168/DX164-W expanders, or a ME personal monitoring system.
  • Compatible with SQ, Avantis and dLive (firmware 1.9 onwards) systems
  • Multiple GX4816 can be added to a system:
    • Up to 2 GX4816 units can be added to a SQ system
    • Up to 2 GX4816 units can be added to an Avantis system
    • Up to 5 GX4816 units can be added to a dLive S Class system
    • Up to 3 GX4816 units can be added to a dLive C Class system
  • Rack-mounted (5u) or shelf/floor operation
  • Plug and Play – no IP addressing required
  • Compatible with CAT5e (or higher) cables of up to 100m
  • Locking EtherCon ports

Allen & Heath GX4816 - 48 XLR Input / 16 XLR Output Portable GX Expander

    • Inputs 
      • XLR Mic/Line Inputs: Balanced, +48V Phantom Power 
        • Mic/Line Preamp: Fully recallable
        • Input Sensitivity: -60 to +15dBu
        • Analogue Gain: +5 to +60dB, 1dB steps 
        • Pad: -20dB Active PAD 
        • Maximum Input Level: +30dBu (PAD in)
        • Input Impedance: >4kΩ (Pad out), >10kΩ (Pad in)
      • Mic/Line Channel noise: 22-22kHz, Direct Out @ unbalanced out
        • Mic EIN: -127dB with 150Ω source
        • Unity gain (Pad in): -90dBu
        • Low gain (5dB, Pad out): -96dBu
        • Mid gain (30dB, Pad out): -90dBu
      • Mic/Line Channel THD+N: 22-22kHz, Direct Out @ unbalanced out
        • Unity gain (Pad in): 0.003% -88dBu @ 1kHz, 0dBu output
        • Low gain (5dB, Pad out): 0.002% -93dBu @ 1kHz, 0dBu output
        • Mid gain (30dB, Pad out): 0.003% -88dBu @ 1kHz, 0dBu output
    • Outputs
      • XLR Outputs: Balanced, Relay protected
        • Output Impedance: <75Ω
        • Nominal Output: +4dBu = 0dB meter reading
        • Maximum Output Level: +22dBu
        • Residual Output Noise: -92dBu (muted, 20-20kHz)
      • Operating Temparature: 0 deg C to 35 deg C (32 deg F to 95 deg F)
      • Mains Power: 100-240V, 50/60 Hz, 20W max
    • Dimensions and Weight
      • Width x Depth x Height x Weight
      • 410mm x 190mm x 185mm x 4.6kg (16.1” x 7.5” x 7.3” x 10.1lbs)


Product Rating

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—  Philip Manzon

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