• RDL FP-PA35A 35-Watt Mono Audio Amplifier
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RDL FP-PA35A 35W Mono Audio Amplifier

RDL FP-PA35A 35W Mono Audio Amplifier

SoundPro Item: 69854 | Part Number: 001-2150

$319.09
$425.45 $319.09
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MSRP: $425.45 | MAP: $319.09

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  • 35 Watts RMS Constant Voltage Amplifier
  • 25 V, 70 V or 100 V Output
  • Automatic Energy-Saving Sleep Mode
  • Selectable Sleep Delay: Off, 5, 15, 25 Minutes
  • Input / Output Terminal Block Connections
  • Line Level Balanced or Unbalanced Input
  • Compressor/Limiter Controls Clipping
  • LED to Indicate Audio Compression Threshold
  • Compressor Produces Maximized Average Output Power
  • Audio Quality Superior to Standard Amplifiers
  • Ultra-compact All Metal Construction
  • High-Efficiency Class D Operation
  • Thermal and Short-Circuit Protection
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The FP-PA35A is the ideal choice in many applications where multiple 25V, 70V or 100V 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.

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Specifications

Dimensions
Dimensions
Height: 2.80 in.(7.1 cm); Width: 3.25 in.(8.26 cm); Length: 6.04 in.(15.3 cm)
Package Dimensions
8 x 6.5 x 3.25 in.
Weight
Shipping Weight
3.34 lbs
Electrical
THD+N
< 0.5% (1 kHz at compressor threshold); < 0.5% (50 Hz to 20 kHz, 1 W)
Sleep Mode Power Consumption
< 1 W (amplifier and included power supply)
Audio
Input Impedance
20 kΩ balanced bridging; 10 kΩ unbalanced
Gain Adjustment
Single turn audio taper
Frequency Response
50 Hz to 20 kHz (± 3 dB)
Output Power
35 W RMS @ 25 V, 70 V or 100 V
Audio Detector Threshold
-50 dBu balanced, -52 dBV unbalanced
Connectivity
Input
Line level (+4 dBu nominal balanced; -10 dBV nominal unbalanced)
Input / Output Connectors
Detachable terminal block
Minimum Input Levels:Balanced
-14 dBu; Unbalanced: -15 dBV (to cross compressor threshold)
Maximum Input Levels:Balanced
+22 dBu; Unbalanced: +20 dBV
Included Items
Power Supply (included)
100 to 240 Vac, 50-60 Hz, 1.3 A, IEC C14; Output to module: 24 Vdc, 2 A, Ground-referenced
General
Compressor
Threshold 2 dB below rated output, automatic adjusting attack and release times
Noise
<-75 dB (below 35 W RMS)
Sleep Mode Delay
5, 15 or 25 minutes (selectable)
Sleep Mode Disable
Selectable
Active Mode Delay
< 150 mS after input audio detected
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
Plenum Rating Standard
UL 2043
Package Type
Cardboard Box
Audio Performance
CMRR
> 60 dB (50 Hz to 120 Hz)

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