This amplifier / mixer has been designed for small PA applications such as warehouses and parking garages. It incorporates USB / SD / MP3 player input to connect storage devices with up to 32 GB of memory. The player includes all common functions (play / rewind / forward, volume, etc.). It has two microphone inputs (Mic 1 with priority) and an Aux input for connecting a CD or radio player. Thanks to the pre-amplified output with all the mixed signal, it can be connected to additional amplifiers in the installation. It can work at low impedance and 70/100 V line. It is also possible to connect it to the DC 12V emergency input and use it as a car PA system.