Rolls RA170 Amplifier

Rolls RA170 Mono Power Amplifier - 70V/70W Audio Distribution

Rolls RA170 Mono Power Amplifier - 70V/70W Audio Distribution

B&H # RORA170 MFR # RA170
Rolls RA170 Amplifier

Rolls RA170 Amplifier

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  • 1Description

The RA170 mono power amplifier was designed especially for the installation contractor, 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 70 volt 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 70 volt amplifier
Drives 70 volt speakers directly
Choice of RCA coaxial or 1/4" TS phono input
Spring loaded speaker output
Clip indication
Fault protection output
UPC: 675889017007
In the Box
Rolls RA170 Mono Power Amplifier - 70V/70W Audio Distribution
  • External Power Adapter
  • One Year Warranty
  • Table of Contents
    • 1Description
    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
    Packaging Infoycewrecwfuzbwvbqteufderzwrru
    Package Weight 7.75 lb
    Box Dimensions (LxWxH) 21.654 x 8.268 x 3.858"
    RA170 Amplifier is rated 5.0 out of 5 by 4.
    Rated 5 out of 5 by from Works great! Quiet, no fans. I replaced a noisy fan cooled amp with this one, and it is driving eight 70 Volt 5 Watt ceiling speakers in our church's overflow areas easily.
    Date published: 2014-01-17
    Rated 5 out of 5 by from Worked exactly as I expected & hoped it I used this amplifier for a commercial sound masking system installation and it worked GREAT!
    Date published: 2008-09-26
    Rated 5 out of 5 by from Works well - church amp replacement Inexpensive, easy replacement for old, blown amp in existing 70v system.
    Date published: 2011-06-21
    Rated 5 out of 5 by from Works great! Works great to convert rca to 70 watt, and power our ceiling speakers. The volume control is nice as well!
    Date published: 2015-03-24
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