Additional inputs on the PA-250-IP allow for a contact closure to activate a door chime tone, a 1/8-inch audio jack for background music which mutes during a voice page, and a 600-ohm AUX input for line level audio sources providing mass notifications, prerecorded messages or scheduled tones.
The PA-250-IP features individual level controls with LED indicators for each input, automatic peak limiting, multiple amplifier protection modes, an adjustable automatic level control, and bass and treble controls. For more power/speakers, multiple units can be daisy chained together using the 600-ohm output.