A-3624D TOA's A-3600D series is a PA amplifier equipped with 4 microphone inputs and 3 auxiliary inputs and 2-channel zone selector. It also features Volume control function, Priority function, Chime function and Remote confirmation function. In addition, it is equipped with a 2-channel input BUS of BUS 1 and BUS 2, and the signal processing function. The A-3600D series is ideal for paging announcement and BGM applications in schools, offices and supermarkets.