Bogen models TPU35B, TPU60B, TPU100B, and TPU250 are wall-mounted telephone paging amplifiers rated at 35, 60, 100, and 250 watts, respectively. All models can also be rack-mounted. These TPU amplifiers permit paging from telephone and/or microphone; music input through an RCA jack or screw terminals; and voice-activated, variable level, music mute with fade back after page. These TPU amps include a night ringer which sends an electronic ringing tone signal through all speakers, alerting personnel of incoming calls. Jacks are also provided to bridge two TPU amplifiers to double the number of inputs and output power.
Adjustable background music muting level during a page
Peak level indicator lights when amplifier is driven into clipping
Signal-activated paging channel automatically mutes background music
Integral automatic level control (ALC) circuit for con- trolling pages made by persons with varying voice levels and paging techniques
Inputs for 600-ohm balanced telephone line, Lo-Z balanced microphone, and background music