RDL (Radio Design Labs) FP-PA35A

August 17, 2010

Audio amplifier

The FP-PA35A is for applications where multiple 25V, 70V or 100V speakers in a zone need to be powered from a single audio power amplifier. It 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 amplified output. The FP-PA35A includes an analog compressor/limiter. 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.

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