Allen & Heath GR4 Zone Mixer

The GR4 is Allen & Heath's analogue zone mixer for background music and paging in bars, restaurants, retail and other leisure spaces. It takes four mic inputs on rear Phoenix connectors, with MIC1 switchable to an optional front-panel XLR, plus four stereo phono inputs and a front 3.5mm jack that overrides input 4 for a quick guest source.

Two stereo zone outputs (mono-selectable via internal jumper) plus two further mono zone outputs let a single GR4 feed several rooms independently, and dedicated paging and alarm contact inputs integrate with third-party paging stations and fire alarm systems. Remote control runs through the PL-14 wall remote over a rear RJ45 connection, or through custom and third-party analogue remotes wired to the Phoenix connectors.

Type	Analogue zone/matrix mixer
Mic Inputs	4 on Phoenix connectors (MIC1 switchable to optional front XLR)
Stereo Inputs	4 rear phono, plus front 3.5mm jack override on input 4
Zone Outputs	2 stereo zones (mono-selectable) plus 2 additional mono zone outputs
Paging / Alarm	Phoenix contact inputs for 3rd-party paging stations and fire alarm systems
Remote Control	PL-14 remote via rear RJ45, or custom/3rd-party analogue remotes via Phoenix connectors
Application	Background music and paging for bars, restaurants, retail and leisure spaces