These Plena mixer amplifiers come in 120 Watts output power. This power is directly available on 100 V constant voltage connections and on a low impedance connection for an 8 ohm load.These Plena mixer amplifiers are high performance, professional public address units with modern state of the art features. Providing a crisp call or clear music is as easy as turning on the radio. The amplifier is also surprisingly affordable, without sacrificing features such as ducking, priority and flexibility.The mixer amplifier has two zone outputs. The music can be switched on and off in the zones via the front panel and optional wall panel.