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RDL FP-PA20A 20 Watts RMS Audio Power Amplifier with Integral Compressor - 70V and 100V outputs

 
  • Dale #:

    RDL-FPPA20A
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Description

The A features a balanced line level input that may be connected unbalanced. A front panel gain control is designed to be adjusted either manually or with a trimming screwdriver. The gain range will accommodate standard unbalanced levels as well as professional balanced levels. Both a 70 V and 10... Read More

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Description

The A features a balanced line level input that may be connected unbalanced. A front panel gain control is designed to be adjusted either manually or with a trimming screwdriver. The gain range will accommodate standard unbalanced levels as well as professional balanced levels. Both a 70 V and 100 V amplified output are provided to drive corresponding speakers in a distributed sound system. Audio levels that could cause the amplified output to clip are compressed using two dynamic time constants designed to preserve aural transparency. Normal audio level signals remain unaffected by the compressor thereby preserving audio dynamics and preventing the compressor from increasing feedback potential when the amplifier is used for paging. The A produces average audio levels and audio clarity normally expected of amplifiers delivering much higher output power.

    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

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Product Specs

Input:Line level (+4 dBu bal -10 dBV unbal)
Input Impedance:20 k balanced bridging 10 k unbal
Input / Output Connector:Detachable terminal block
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% (@ 1 kHz)*
< 0.5% (50 Hz to 20 kHz)*
*measured at compressor threshold level equaling 4 W RMS output power
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 @ 70 V or 100 V
Ambient Operating Environment:0° C to 30° C Max 20° C Recommended
Indicators (2):
Red LED:PEAK LED indicates compressor activity
Green LED:Power ON
Power Requirement:24 Vdc @ 2000 mA, Ground referenced (for continuous RMS power output) 24 to 33 Vdc @ 1000 mA, Ground referenced (for normal uncompressed audio)

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