Rolls RA170 70-Volt Power Amplifier

The RA170 Power Amplifier was designed especially for the installation contractor. The RA170 is a single rack-space, mono unit with a choice of an RCA or 1/4" unbalanced input. The 70 volt speaker outputs are provided via spring-loaded terminals - no transformer is required for speaker connection. The front panel includes a Power indicator LED, a Volume control, and two Clip LEDs which indicate circuitry overload. The output circuitry is protected from momentary shorting and excessive load by a specially designed protective circuit.

Key Features

• 70 Watts of clean amplification into 70 V system
• Spring-loaded output terminals
• Front-panel heat sinking

Technical Specifications

Recommended Load
70 Volt line (70 Watts maximum)
Frequency Response
70Hz to 20 kHz
Equiv. Input Noise
100 microVolt typical, A weighted 600 Ohm input
S/N Ratio
114 dB @ 70 Watts
Gain
40 dB
Input Impedance
47 k Ohms
Size (W x H x D)
19” x 1.75” x 5” (48 x 4.5 x 12.7cm)
Weight
5.5 lbs (2.5 kg)