Allen & Heath
Allen & Heath GX4816 48×16 Portable GX Expander with DX Sockets
Allen & Heath GX4816 48×16 Portable GX Expander with DX Sockets
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Product Description
The GX4816 is a 5U, 96 kHz digital I/O expander designed for Allen & Heath dLive, SQ, and Avantis mixing systems. It provides 48 remote mic preamps on XLR inputs with individually switchable phantom power and –20 dB pad, plus 16 balanced XLR line outputs. Two DX expansion ports allow daisy-chaining additional GX or DX units (or ME personal mixers), and the primary EtherCon port delivers audio and control with automatic firmware updates—no configuration required. Place it up to 100 m from your mixer for ultimate stage-box flexibility.
Key Features
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48 recallable mic preamps on XLR inputs with +48 V phantom power LEDs and –20 dB pad
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16 balanced, relay-protected XLR line outputs
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Primary GX EtherCon port for digital audio/control plus 2 DX ports for further expansion
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96 kHz sampling rate with auto firmware updates when connected to the host mixer
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Rack-mountable 5U form factor with integrated rack ears and up to 100 m cable run distance
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Plug-and-play operation—just connect to your mixer, no additional setup required
Technical Specifications
| Specification | Detail |
|---|---|
| Mic/Line Inputs | 48 × XLR, fully recallable preamps with +5 to +60 dB gain (1 dB steps), –20 dB pad |
| Phantom Power | +48 V per input, LED indicator |
| Line Outputs | 16 × balanced XLR, relay protected |
| Sampling Rate | 96 kHz |
| EtherCon Ports | 1 × primary GX; 2 × DX expansion (supports up to 4 DX units) |
| Expandability | Connect additional GX or DX expanders; ME personal monitor support on Avantis/SQ |
| Remote Placement | Up to 100 m over Cat 5e/6 cable |
| Form Factor | 5U rack-mountable with ears |
| Power Supply | Internal, 100–240 V AC, IEC inlet, 80 W max |
| Operating Temperature | 0 °C to 40 °C |
| Dimensions (W×D×H) | 481.6 × 255 × 229.5 mm |
| Weight | 8 kg (unit); 10 kg (boxed) |
