Rolls RA170
70 Watt 70V Rackmount Installation Power Amplifier

OUR PART #  RA170


The Rolls 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.

Rolls RA170 Features:

  • Balanced 70 volt line output
  • Drives 70 volt speakers directly
  • RCA or 1/4" inputs
  • Spring-loaded output
  • Clip indication
  • Fault protected output

Rolls RA170 Specifications:

  • Recommended Load: 70 volt line (70 watts maximum)
  • Frequency Response: 70 Hz - 20 kHz
  • Equiv. Input Noise: 100 µV typical, A weighted, 600 ohm input
  • S/N Ratio: 114 dB @ 70 Watts
  • Gain: 40 dB
  • Input Impedance: 47 kOhms
  • Size (WxHxD): 19" x 1.75" x 5"
  • Weight: 5.5 lbs.

Rolls RA170
70 Watt 70V Rackmount Installation Power Amplifier

OUR PART #  RA170

Product Information:

The Rolls 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.

Rolls RA170 Features:

  • Balanced 70 volt line output
  • Drives 70 volt speakers directly
  • RCA or 1/4" inputs
  • Spring-loaded output
  • Clip indication
  • Fault protected output

Rolls RA170 Specifications:

  • Recommended Load: 70 volt line (70 watts maximum)
  • Frequency Response: 70 Hz - 20 kHz
  • Equiv. Input Noise: 100 µV typical, A weighted, 600 ohm input
  • S/N Ratio: 114 dB @ 70 Watts
  • Gain: 40 dB
  • Input Impedance: 47 kOhms
  • Size (WxHxD): 19" x 1.75" x 5"
  • Weight: 5.5 lbs.
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