This module is designed for use in emergency evacuation systems and is powered by an external 24V DC source. It accepts a line level audio input and produces a 100V line output via a transformer. It also features short circuit, overload and thermal cutout protection, and is constructed on a steel chassis. Designed with reliability and robust performance in mind, it is the ideal audio power source for evacuation systems, or any application which requires a DC powered 100V line amplifier. Features Powered by nominal 24V DC 100V line audio output Line level audio input - 600mV Short circuit, overload, and thermal cutout protection Bolt-in chassis construction Australian designed and assembled Output Power: 120W RMS Current Draw: 8A at full load, 220mA Quiescent Freq. Response: 50Hz - 12kHz Distortion: < 0.6% Signal to Noise Ratio: -91dB Sensitivity: 600mV RMS Fuse Rating and Type: 7.5A M205 Dimensions: 210W x 170D x 87Hmm