• 3 models: 35, 60, and 100 watts • 4 inputs: 1 MIC (Lo-Z), 1 AUX (Hi-Z), 1 TEL, plus 1 selectable MIC or AUX • Each input controlled by an independent volume control • Treble and bass controls • AUX muting by external contact closure for push-to-talk mic’s • Tel input for telephone paging applications • TEL input voice-activated (VOX) mute over AUX input • Variable threshold for TEL input voice-activated AUX mute • Audio output for tape recorder or booster amplifier • Outputs for 4-ohm (direct), 8-ohm, and 16-ohm, 25V and 70V speaker systems (transformer coupled) • Output jack to connect a tape recorder or booster amplifier • Output jack to connect a general-purpose 600-ohm matching transformer (model WMT1A) • Thermal protection and electronic shutdown • Rack mountable with accessory mounting kit (model RPK50) • UL and CSA listed