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Rolls RA170 (RA170)

Volt Power Amplifier

What's in the box:

  • Rolls RA170 Mono Power Amplifier - 70V/70W Audio Distribution
  • External Power Adapter
  • One Year Warranty

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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.

Rolls RA170 Features:

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

Specifications for the Rolls RA170

{ "Power Rating" : { "Mono @ 70V" : "70 watts maximum" }, "Damping Factor" : "Not applicable", "Input Sensitivity" : "Not specified by manufacturer", "Input Impedance" : "147k ohm", "Gain" : "40dB", "Frequency Response" : "70Hz to 20kHz", "Signal-to-Noise Ratio" : "Better than 114dB @ 70 watts", "Total Harmonic Distortion (THD)" : "Not specified by manufacturer", "Input Connections" : "1 x RCA coaxial, 1 x 1/4" TS phono", "Output Connectors" : "1 x Pair spring loaded speaker connectors", "Controls Front Panel" : "Power switch, 1 x Rotary volume", "Controls (Rear)" : "None", "Indicators" : "2 x Clip, 1 x Power LED's", "Cooling" : "Convection (uses front panel for heat distribution)", "Power Consumption" : "Not specified by manufacturer", "Dimensions" : "19" x 5" x 1 3/4"", "Weight" : "5.5 lbs", "Specialties" : "Requires no transformer coupling to drive 70 volt speakers directly" }