- Powerful 70V amplifier drives up to 250 Watt load- Page from any analog telecom port, or a direct microphone- Auxiliary and Background Music inputs- Individual and Master volume controls- Bass and Treble controls- LEDs show audio level and activity- Programmable input priorities- Chose between 3 different chime sounds- Provides Loud Ringing / Night Bell- Night Transfer switch input- 600 Ohm output to drive additional amplifiers- Adjustable Automatic Level Control- Peak limiter and multiple protection modes