GR4 is a 1U rack-mounting or desktop audio mixer providing simple yet comprehensive control of background music and paging in bars, restaurants, stores and other leisure and retail environments. Standout features include optional remote wall plates, a front panel mic input and a 3.5mm jack output for headphone monitoring. Inputs Mic Line Inputs 4 × mic inputs on rear Phoenix connectors — MIC1 selectable to a front-mounted XLR. 4 × stereo inputs on rear phono connectors, plus a front-mounted 3.5mm jack. Outputs Zone Outputs 2 × stereo zones (mono selectable via jumper) on rear Phoenix connectors, plus 2 × additional mono zone outputs — 4 zones total. Integration Paging Alarm Paging and alarm contact inputs on rear Phoenix connectors for integration with 3rd party paging stations and fire alarm systems. Control Remote Ready Remote control via PL-14 wall plate on rear RJ45, or custom/3rd party analogue remotes on rear Phoenix connectors. Configurable Installer Selectable Modes Primary Secondary Mic modes control hierarchical mic feeds for simple paging announcements. Emergency mode integrates with 3rd party systems — mutes all inputs except MIC 1 on alarm contact closure. Jukebox mode provides a priority line input for pre-recorded announcements or programme material such as sports channels. Remote Control PL-14 Compatible The PL-14 is an intelligent remote controller for the GR4, giving non-technical operators local control of music source selection and/or audio level. Up to two controllers can be connected — one for each zone, or a single unit to simultaneously control both zones. A menu of setup options allows the installer to configure its functions to suit the specific application. Applications Built for Installed Audio GR4 is engineered for the practical demands of hospitality and retail installs — background music distribution, live announcements, emergency paging and integration with fire alarm systems, all in a single 1U unit. Rack mount or desktop deployment, rear-panel Phoenix connectivity throughout for clean, professional installation. GR4 Specifications 4 × mic inputs on rear Phoenix connectors (MIC1 selectable to front XLR) 4 × stereo line inputs on rear phono connectors Front panel 3.5mm jack input 2 × stereo zone outputs on rear Phoenix (mono selectable via jumper) 2 × additional mono zone outputs (4 zones total) Front panel 3.5mm headphone monitoring output Paging alarm contact inputs (rear Phoenix) Installer selectable modes: Primary/Secondary Mic, Emergency, Jukebox PL-14 remote wall plate compatible (rear RJ45) 3rd party analogue remote compatible (rear Phoenix) Up to 2 × PL-14 controllers (per zone or combined) 1U rack mounting or desktop use
