This power amplifier circuit is designed for portable sound system, small PA, cassette or car radio with 15+15 watt amplifying power
This circuit is designed to use in the car or house too.
It can be applied to use only 12 volts AC supply by connecting circuit with adaptor.

Specification:
- supply voltage : 12 VDC / more than 2A.
- music power output : 2 x 15W / 4©
- signal/noise ratio : 80 dBA.
- input sensitivity : 150mV / 200k©
- frequency response : 20Hz to 20kHz (-3dB)
- gain : 30dB. max.
- total harmonic distortion (THD) : 0.1% @ 1W, 4©
- overload and short-circuit protected
- dimension : 4.76 x 1.89 inches.