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RDL FP-PA20A 20W Mono Audio Power Amplifier, 70V and 100V Outputs

SKU: RDFPPA20A MFR: FP-PA20A
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Key Features

  • Experience superior audio with this RDL 20W mono amplifier, perfect for commercial sound systems.
  • Achieve optimal sound distribution using the 70V/100V outputs of this reliable power amplifier.
  • Enjoy clear, crisp audio with a frequency response of 50 Hz to 20 kHz from this audio amplifier.
  • Easily adjust gain settings with the user-friendly audio taper, optimizing sound for any environment.
  • Ensure consistent audio quality with the built-in compressor, preventing distortion at high levels.
  • This compact & durable amplifier features detachable terminal blocks for easy connectivity in any setup.
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Special Order?Estimated to Ship: 09/08/2025
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RDL FP-PA20A Specifications

  • Input/Output Connector

    Detachable terminal block

  • Input

    Line level (+4 dBu bal; -10 dBV unbal)

  • Input Impedance

    20 kOhms balanced bridging; 10 kOhms unbalanced

  • Gain Adjustment

    Single turn audio taper

  • Minimum Input Levels

    Balanced: -26 dBu (to cross compressor threshold)
    Unbalanced: -28 dBV (to cross compressor threshold)

  • Maximum Input Levels

    Balanced: +23 dBu
    Unbalanced: +15 dBV

  • Frequency Response

    50 Hz to 20 kHz (+/- 3 dB)

  • THD+N

    < 0.1% (at 1 kHz)
    < 0.5% (50 Hz to 20 kHz)

  • Plenum Rating Standard

    UL 2043

  • Noise

    < -80 dB (below 20 W RMS)

  • Compressor

    Threshold 6 dB below rated output, automatic adjusting attack and release

  • CMRR

    > 55 dB (50 Hz to 120 Hz)

  • Output Power

    20 W RMS at 70 V or 100 V

  • Ambient Operating Environment

    0 to 30 deg. C (32 to 86 deg. F) Max
    20 deg. C Recommended

  • Indicators (2)

    Red LED: PEAK LED indicates compressor activity
    Green LED: Power ON

  • Power Requirement

    24 Vdc at 1650 mA, Ground referenced (for continuous RMS power output) 24 Vdc at 1000 mA, Ground referenced (for normal uncompressed audio)

  • Dimensions (HxWxL)

    Overall: 2.3 x 3.25 x 6" (5.84 x 8.26 x 15.24cm)

  • UPC Code

    813721012562

About RDL FP-PA20A

Under the hood of the FP-PA20A 20W Mono Audio Power Amplifier lies a robust and powerful engine designed to deliver high-quality, amplified sound with exceptional clarity. This durable and efficient unit is engineered to meet the demands of professional audio environments, ensuring reliable performance for your sound reinforcement and public address needs.

The FP-PA20A boasts a balanced line level input that seamlessly accommodates unbalanced connections, providing versatile connectivity options for a variety of audio sources. The front panel features a precision gain control, which can be finely adjusted either manually or with a precision trimming screwdriver, catering to both standard unbalanced levels and professional balanced audio signals.

With both 70V and 100V amplified outputs, this amplifier is perfectly suited to drive speakers within a distributed sound system, making it an ideal choice for large venues and high-impedance speaker setups. The advanced compression circuitry of the FP-PA20A employs two dynamic time constants to manage audio levels that could potentially lead to clipping. This intelligent design maintains aural transparency, ensuring that normal audio signals are unaffected, thus preserving the natural dynamics of the music or speech.

Furthermore, the compressor's nuanced operation helps to minimize the risk of feedback when the amplifier is utilized for paging applications. The FP-PA20A is capable of producing average audio levels with a clarity and depth that belies its compact size, rivaling the performance of amplifiers with much higher output power.

Whether you're amplifying live music, speeches, or background audio, the FP-PA20A 20W Mono Audio Power Amplifier is a high-fidelity solution that promises to deliver powerful, clear, and consistent audio performance for all your professional amplification needs.

RDL FP-PA20A Features

  • 20 Watts RMS Constant Voltage Amplifier
  • 70 V and 100 V Outputs
  • Integral Audio Compressor to Control Clipping
  • High Overall Operating Audio Level
  • Maximized Audio Level for Output Power
  • Audio Quality Superior to Standard Amplifiers
  • Plenum Rated per UL 2043 Standard

Key Features

  • Experience superior audio with this RDL 20W mono amplifier, perfect for commercial sound systems.
  • Achieve optimal sound distribution using the 70V/100V outputs of this reliable power amplifier.
  • Enjoy clear, crisp audio with a frequency response of 50 Hz to 20 kHz from this audio amplifier.
  • Easily adjust gain settings with the user-friendly audio taper, optimizing sound for any environment.
  • Ensure consistent audio quality with the built-in compressor, preventing distortion at high levels.
  • This compact & durable amplifier features detachable terminal blocks for easy connectivity in any setup.

What's in the box:

  • RDL FP-PA20A 20W Mono Audio Power Amplifier
  • RDL 3 Year Limited Warranty