The Rolls RA170 mono power amplifier is designed for the installed systems, and is housed in a single rack-space unit with a choice of either an RCA coaxial or 1/4" TS phono unbalanced input. The 70V speaker outputs are provided via spring-loaded terminals and no transformer is required for speaker connection.
The front panel includes a power indicator LED, a volume control, and two clip LED's, which indicate circuitry overload. The output circuitry of the RA170 is protected from momentary shorting and excessive load by a specially designed protective circuit.
Mono 70V amplifier
Drives 70V speakers directly
Choice of RCA coaxial or 1/4" TS phono input
Spring-loaded speaker output
Clip indication
Fault protection output
UPC: 675889017007