PA 60 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, so 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).