US90 Compact 90 Watt Slave Amplifier.
100V line or 8 Ohms operation.
Balanced Input (Screw Terminals) and 2 x L+R RCA Sockets.
100V input for connection in parallel with existing 100V speakers.
Channel Gain Control.
LED Signal Indication.
24V fire alarm mute contacts.
Supplied with hardware for rack-mounting 2 units
2 x L+R RCA Slave Output.