Allen & Heath AR0804 – 8 Inputs, 4 Outputs Audio Rack

Allen & Heath AR84 AudioRack Remote I/O Expander

The Allen & Heath AR84 is a compact remote AudioRack designed to expand input and output capabilities for Allen & Heath Qu, SQ, and Avantis digital mixers, as well as AHM audio matrix processors. Engineered for flexible audio system deployment, the AR84 provides professional-grade remote connectivity while maintaining simple installation and reliable operation across a wide range of live sound and installed audio environments.

The unit features eight XLR mic/line inputs equipped with high-performance microphone preamps that offer up to +60 dB of gain. Each input includes a -20 dB pad, allowing the system to accommodate both microphone and higher-level line sources with excellent signal integrity. Four balanced XLR line outputs provide dependable audio distribution for stage monitoring, zone feeds, or other routing requirements. Relay-protected output circuits help ensure reliable performance in professional applications.

Designed for remote deployment, the AR84 can be positioned up to 100 meters from the connected mixer or processor using a single Cat5 cable connection. This allows users to place audio connections exactly where they are needed, reducing cable runs and simplifying system setup in live venues, houses of worship, educational facilities, conference spaces, and installed sound environments.

The AR84 is engineered for true plug-and-play operation, requiring no manual network configuration or IP addressing. Once connected, the unit is automatically recognized by compatible Allen & Heath systems, while firmware updates are handled directly through the host mixer or processor. Housed in a compact chassis with integrated rack ears, the AR84 can be conveniently installed in a standard 1U 19-inch equipment rack, making it an efficient and space-saving solution for remote audio expansion.

Features of AR84

• 8 XLR mic/line input channels
• 4 balanced XLR line outputs
• High-gain microphone preamps
• Up to +60 dB input gain
• -20 dB input pad per channel
• Remote audio expansion capability
• Compatible with Qu mixers
• Compatible with SQ mixers
• Compatible with Avantis mixers
• Compatible with AHM processors
• Single Cat5 cable connection
• Supports remote placement up to 100m
• Relay-protected line outputs
• Plug-and-play operation
• Automatic device recognition
• Automatic firmware updates
• Compact 1U rackmount design
• Integrated rack ears
• Professional installation ready
• Ideal for live and installed audio systems

Specifications of AR84