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

B&H # RORA170 MFR # RA170
Rolls RA170 Amplifier

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You Pay: $171.95

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

    by PowerReviews
    RollsRA170 Amplifier
     
    5.0

    (based on 4 reviews)

    Ratings Distribution

    • 5 Stars

       

      (4)

    • 4 Stars

       

      (0)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Reviewed by 4 customers

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    Displaying reviews 1-4

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    5.0

    Works great!

    By KT

    from Indianapolis, IN

    About Me Audiophile, Pro Audio / DJ, Tech Savvy

    Verified Buyer

    Pros

    • Accurate Controls
    • Easy To Set Up
    • Good Power Output
    • Great Sound Quality

    Cons

      Best Uses

        Comments about Rolls RA170 Amplifier:

        Works great to convert rca to 70 watt, and power our ceiling speakers. The volume control is nice as well!

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        Works great! Quiet, no fans.

        By Church Sound Guy

        from Colorado Spings

        About Me Tech Savvy

        Verified Buyer

        Pros

        • Accurate Controls
        • Easy To Set Up
        • Energy Efficient
        • Good Power Output
        • Great Sound Quality

        Cons

          Best Uses

          • Multiple Rooms / Whole House

          Comments about Rolls RA170 Amplifier:

          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.

          • Was this a gift?:
          • No

          Share this review

          (1 of 1 customers found this review helpful)

           
          5.0

          Works well - church amp replacement

          By Flason

          from Clearwater FL

          About Me Experienced

          Verified Buyer

          Pros

          • Easy To Use

          Cons

          • Limited Functions

          Best Uses

            Comments about Rolls RA170 Amplifier:

            Inexpensive, easy replacement for old, blown amp in existing 70v system.

            Share this review

            (1 of 1 customers found this review helpful)

             
            5.0

            Worked exactly as I expected & hoped it

            By Dave the cable guy

            from Portland, OR.

            About Me Experienced

            Verified Buyer

            Pros

            • Clear Sound
            • Easy To Use

            Cons

              Best Uses

              • Sound masking systems

              Comments about Rolls RA170 Amplifier:

              I used this amplifier for a commercial sound masking system installation and it worked GREAT!

              Share this review

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