Bogen LU35WAMP Amplifier
35-Watt, 70-Volt Paging, Night Bell
LU100WAMP Amplifier is a full featured, wall-mounted amplifier that provides inputs for dry loop 600-ohm telephone page signal and background music source. A set of control inputs allows an external contact closure to mute background music and open the telephone page channel. Background music mute level during page is adjustable and the music slowly fades back in after the page is completed. This amplifier includes a built-in night bell that can be triggered by an external contact closure. The night bell mutes the background music, but not pages.
Full specifications (PDF)
Manufacturer part number: LU35WAMP