- Description
Details
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.
- Features
Features
- 20W RMS Constant Voltage 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
- Specification
Input Line level
(+4 dBu nominal balanced)
(-10 dBV nominal unbalanced)Input Impedance 20 kΩ balanced bridging
10 kΩ unbalancedInput/Output Connector Plug-in 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 dBVFrequency Response 50 Hz to 18 kHz (+/- 3 dB) THD+N < 0.1% (@ 1 kHz); < 0.5% (50 Hz to 20 kHz) Noise < -80 dB (below 20W RMS) Compressor Threshold 6 dB below rated output, automatic adjusting attack and release CMRR > 55 dB (50 Hz to 120 Hz) Output Power 20W RMS @ 25V 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 @ 1650 mA, Ground referenced, 24 Vdc @ 1000 mA, Ground referenced Dimensions (H x W x D) 2.3" (58.5 mm) x 3.25" (82.6 mm) x 6.04" (153 mm) Net Weight 2.195 lbs (0.995 kg) Shipping Weight 2.41 lbs (1.09 kg) - Documents
Documents
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