Allen & Heath GX4816: Your Key to High - Input - Count Audio Expansion
Unleash the power of high - input - count remote expansion with the GX4816! This 96kHz audio expander is a game - changer for SQ, Avantis, and dLive mixing systems, as well as AHM audio matrix processors.
Here's what makes it stand out:
• 48 dLive mic preamps with independent Phantom Power LED indicators for easy setup.
• 16 XLR line outputs for seamless audio transfer.
• 2 DX ports for connecting up to 4 DX Expanders, expanding your I/O capabilities like never before.
Features:
- 48 Mic Preamps on XLR
- Phantom Power LED per Input
- 16 XLR Line Outs
- GX connection with locking Ethercon port
- DX ports for further I/O expansion
- DX 2 port compatible with ME system (Avantis and SQ only)
- 96kHz audio
Specifications:
- Inputs:
- Mic/Line XLR Inputs: Balanced XLR, +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 EIN: -127dB with 150 source
- Phantom Power Indication: Per socket, internal or external phantom power sensing, triggered at 24V
- Outputs:
- Analogue XLR Outputs: Balanced, Relay protected
- Output Impedance: <75Ω
- Nominal Output: +4dBu = 0dB meter reading
- Maximum Output Level: +21dBu
- Residual Output Noise: -95dBu (muted, 22Hz - 22kHz)
- Power:
- Mains Voltage Operating Range: 100 - 240V AC, 50/60Hz
- Mains Power Consumption: 80W max
- Temperature:
- Operating Temperature Range: 0°C to 40°C (32°F to 104°F)
- Dimensions and Weights (Width x Depth x Height x Weight): 481.6 x 255 x 229.5 mm x 8kg (18.9” x 10” x 9” x 17.6lbs)




The Allen & Heath GX4816 is a portable audio expander designed for sound engineers, musicians, and event organizers who need to enhance their audio systems. It's perfect for live performances, recording studios, and large - scale events. With 48 inputs and 16 outputs, it can handle high - volume audio setups. The unit measures 481.6 x 255 x 229.5 mm and weighs 8kg, making it relatively easy to transport and install. It operates on 100 - 240V AC, 50/60Hz power, with a maximum consumption of 80W. Its operating temperature range is 0°C to 40°C (32°F to 104°F).