The Allen & Heath AH-AR2-84 is a dedicated audio rack designed to provide remote microphone preamplifier control and analog audio routing for Allen & Heath GLD series digital mixing systems. This unit functions as a critical expansion component, moving the system's primary audio inputs away from the mixer surface and into a standard 19-inch rack configuration. It houses 8 high-quality, remotely controllable microphone preamps, each with gain adjustment, 48V phantom power, and a high-pass filter that can be managed directly from the GLD mixer's interface or via a connected iPad. This allows the preamps and initial gain staging to be positioned at the stage or source location, significantly reducing the length of analog microphone cable runs, which minimizes noise, interference, and signal degradation for cleaner overall sound.

The AR2-84 provides 8 balanced XLR microphone inputs and, importantly, also offers 4 balanced line-level returns on XLR connectors. These returns allow analog signals from stage equipment—such as outputs from a monitor mixer, playback devices, or effects returns—to be fed back into the GLD system without requiring additional stage boxes. All 12 channels (8 mic/line inputs and 4 line returns) are connected to the main GLD-80 or GLD-112 mixer via a single Cat5e cable using Allen & Heath's proprietary ACE protocol, which carries digital audio, control data, and power over a robust, lightweight link. This streamlined connection drastically simplifies system wiring and setup time for installed and touring applications.

Built with the ruggedness required for live production, the unit features a robust steel chassis in a compact 1U rack-mountable form factor. Its integration is seamless, appearing as a direct extension of the GLD mixer's I/O within the console's software. By decentralizing the analog input stage, the AR2-84 audio rack enhances system flexibility, improves audio quality through shorter analog paths, and provides a tidy, professional solution for permanently installed systems in houses of worship, theaters, or conference centers, as well as for touring engineers who prefer to keep their digital mixer surface at Front of House while managing stage inputs from a single, rack-mounted unit.