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General Information
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Manufacturer
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RDL
|
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Manufacturer Part Number
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FP-PA20B
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Product Name
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Flat Pack
Series 20 W Mono Audio Amplifier, 25V |
| UPC Code |
813721012586
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Overview
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The FP-PA20B 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. A 25 V amplified output is
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 FP-PA20B produces average audio levels and audio clarity
normally expected of amplifiers delivering much higher output
power
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|
Features
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- 20 watts RMS audio power
amplifier
- 25V Output
- 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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Pictures
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Specifications
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| Input |
Line
level (+4 dBu bal; -10 dBV unbal)
|
| Input
Impedance |
20
kOhms balanced bridging; 10 kOhms unbalanced
|
| Input
/ Output Connector |
Plugin
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 18 kHz (More or less 3 dB)*
|
THD+N
*measured at compressor threshold level equaling 4 W RMS output
power
|
Less
than 0.1 percent (at 1 kHz)*
Less than 0.5 percent (50 Hz to 20 kHz)* |
Noise
|
Less
than -80 dB (below 20 W RMS)
|
Compressor
|
Threshold 6 dB below rated output, automatic adjusting
attack and release
|
CMRR
|
Greater
than 55 dB (50 Hz to 120 Hz)
|
Output
Power
|
20 W RMS at 25V |
Indicators
|
Red
LED: PEAK LED indicates compressor activity
Green LED: Power ON
|
| Ambient Operating Environment |
0C to 30C Max; 20C Recommended |
| 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 |
2.30" x 3.25" x 6.00" |
| Shipping Dimensions |
4.38" x 7.00" x 2.25" |
| Weight |
2.20 lbs
|
| Shipping Weight |
2.41 lbs |
