SKU: 17129990196

RDL FP-PA35A 35W 70V Mono Audio Amplifier

Sale price$209.25 Regular price$232.50
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Description

RDL FP-PA35A 35W 70V Mono Audio AmplifierThe FP PA35A is the ideal choice in many applications where multiple 25 V, 70 V or 100 V speakers in a zone need to be powered from a single audio power amplifier. The FP PA35A features a balanced line level input that may be connected unbalanced. A front panel gain control is designed to be adjusted manually or with a trimming screwdriver. The gain range will accommodate standard unbalanced levels as well as professional balanced levels. Multiple

The FP-PA35A is the ideal choice in many applications where multiple 25 V, 70 V or 100 V speakers in a zone need to be powered from a single audio power amplifier.

The FP-PA35A features a balanced line level input that may be connected unbalanced. A front panel gain control is designed to be adjusted manually or with a trimming screwdriver. The gain range will accommodate standard unbalanced levels as well as professional balanced levels. Multiple distributed sound system speakers connect to the corresponding 25 V, 70 V or 100 V amplified output.

The FP-PA35A includes an analog compressor/limiter for audio fidelity audibly superior to conventional class D amplifiers with digital limiting. The input GAIN setting determines whether the limiter alone is used for clipping suppression, or if the full compressor/limiter will be used to substantially increase the average output power beyond that of a standard 35 W amplifier. A red COMPRESSION LED flashes when the limiter is preventing output clipping. Normal audio level signals remain unaffected by the compressor thereby preserving audio dynamics. If the input level is increased so that the compressor is active, the LED remains dimly lit between peak flashes. The audio is compressed according to three dynamic time constants providing aural transparency while maintaining clean, unclipped amplified audio for input overloads of up to 20 dB. The FP-PA35A, with compression, is capable of producing average audio output levels and clarity normally expected from amplifiers with a much higher output power rating.

The FP-PA35A circuits are all designed for low power consumption. In the absence of an audio input, a digital timer is enabled to switch the class D output stage off. When this sleep mode is active, the amplifier module and its included RDL power supply consume less than 1 W of mains power. A front-panel control sets the sleep mode delay timer to 5, 15 or 25 minutes. The control also permits the installer to bypass the sleep mode to conform to system specifications that require the amplifier to be active at all times. Upon detection of an input signal, the amplifier is nearly inaudibly and instantly restored to full operation within 150 milliseconds.

A blue POWER LED illuminates when the FP-PA35A is powered from its external 24 Vdc power supply. The power LED is dimly illuminated when the sleep mode disables the amplifier and glows brightly when the amplifier operation is fully enabled. The module is equipped with both thermal and output short-circuit protection. The high-efficiency Class D output stage produces minimal heat for all levels of expected voice or music modulation. Continuous full-power operation with audio tones will not damage the amplifier, but is not recommended.

Specifications

  • Input: Line level (+4 dBu nominal balanced; -10 dBV nominal unbalanced)
  • Input Impedance: 20 kΩ balanced bridging; 10 kΩ unbalanced
  • Input / Output Connectors: Detachable terminal block
  • Gain Adjustment: Single turn audio taper
  • Minimum Input Levels: Balanced: -14 dBu; Unbalanced: -15 dBV (to cross compressor threshold)
  • Maximum Input Levels: Balanced: +22 dBu; Unbalanced: +20 dBV
  • Frequency Response: 0 Hz to 20 kHz (± 3 dB)
  • THD+N: < 0.5% (1 kHz at compressor threshold); < 0.5% (50 Hz to 20 kHz, 1 W)
  • Compressor: Threshold 2 dB below rated output, automatic adjusting attack and release times
  • Noise: <-75 dB (below 35 W RMS)
  • CMRR: > 60 dB (50 Hz to 120 Hz)
  • Output Power: 35 W RMS @ 25 V, 70 V or 100 V
  • Sleep Mode Power Consumption: < 1 W (amplifier and included power supply)
  • Sleep Mode Delay: 5, 15 or 25 minutes (selectable)
  • Sleep Mode Disable: Selectable
  • Active Mode Delay: < 150 mS after input audio detected
  • Audio Detector Threshold: -50 dBu balanced, -52 dBV unbalanced
  • Ambient Operating Environment: 0° C to 40° C Maximum; 20° C Recommended
  • Indicators (2): Red LED: PEAK LED indicates compressor activity; Blue LED: Power ON, Dim: Sleep mode active; Bright: Amplifier active
  • Power Supply (included): 100 to 240 Vac, 50-60 Hz, 1.3 A, IEC C14; Output to module: 24 Vdc, 2 A, Ground-referenced
  • Dimensions: Height: 2.80 in.(7.1 cm); Width: 3.25 in.(8.26 cm); Length: 6.04 in.(15.3 cm)
  • WEEE weight: 2.475 lbs.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17129990196

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Brenda J.
Birmingham, US
★★★★★ 5
WORKS GOOD
Item Package Quantity: 50
Why did you pick this product vs others?: I like the lids
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Reviewed in the United States on June 27, 2025
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nellie Johnson
Lake Worth, US
★★★★★ 5
Great cake taker
Item Package Quantity: 50
They are great to carry food
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Reviewed in the United States on April 18, 2025
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Mal
Port Orchard, US
★★★★★ 5
Nice for bbq
Item Package Quantity: 25
These are great for bbq and parties durable and keeps items warm.
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Reviewed in the United States on September 11, 2024
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Tim A.
Port Orchard, US
★★★★★ 4
Convenient
Item Package Quantity: 25
It’s great to have these on hand but they are too thin and flimsy
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Reviewed in the United States on February 5, 2024
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Farm
Charlottesville, US
★★★★★ 5
Convenient
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Perfect
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Reviewed in the United States on May 19, 2025

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