- Bogen 100 watt wall-mounted telephone paging amplifier- Inputs for 600-ohm balanced telephone line LO-Z balanced microphone and background music- Integral automatic level control circuit for controlling pages made by persons with varying voice levels and paging techniques- Page from telephone and/or microphone- Signal-activated paging channel automatically mutes background music- Adjustable background music muting level during a page- Music gradually returns to its normal level after a page- Aphex Aural Exciter increases intelligibility improves perceived loudness (with no increase in power) and reduces listener fatigue- Seperate controls for page volume music volume night ringer music mute and Aphex Aural Exciter- Bass and treble controls- Built-in night ringer activated by contact closure or by 90V ring signal- Balanced or unbalanced 16-ohm 25V 25VCT and 70V outputs- VOX sensitivity level control eliminates transmission of background noise when paging from a telephone- Thermal and electronic overload protection- Jacks provided for bridging additional TPU amplifiers- Brackets are attached for easy wall mounting- Peak level indicator lights when amplifier is driven into clipping- 120V AC 60Hz power source- UL and CSA listedTPU100B