PA 120 USB / R is a 100 V 60 W line or low impedance installation amplifier with 5-input mixer audio player / recorder on USB / SD support up to 32 GB, with which it is possible to record messages and store them for use later. The mixer has independent volume control, master control and tone control (treble / bass). It has a Pre-out output to send the mixed signal to an external amplification system. It includes a push button for the siren and a Tel / Emer connection for the broadcasting of messages with priority over all entrances. In addition, it has emergency power terminals (24 V DC).