TOA's 800D Series mixer amplifier is a PA amplifier equipped with 4 microphone inputs, 2 auxiliary inputs, and 2 slots dedicated to the 900 Series modules. It employs a PFC circuit. It also features the following functions: Volume control function, Priority function, Chime function, and Remote confirmation function. In addition, it is equipped with a 2-channel input BUS of AUDIO and DUCK, and the signal processing function. The 800D Series mixer amplifier is ideal for paging announcement and BGM applications in schools, offices, and super markets.