Balanced line input/output (XLR-F and XLR-M sockets, with adjustable sensitivity).
Unbalanced line input (double RCA socket)
MBT 1101 microphone station input (RJ45 socket)
Telephone/emergency audio input for priority calls with adjustable threshold and sensitivity
Front panel overall volume control and treble and bass controls
Rear-panel selector switch for enabling/disabling front-panel tone and volume controls
Constant voltage (50/70/100 V) or 8 ? impedance loudspeaker line output.
LED-type Vu meter for clear and immediate monitoring of output power