This complete high quality, low noise stereo audio power amplifier is based around the Hybrid Integrated Circuit STK4392 manufactured by Sanyo. The circuit incorporates volume and balance controls and has a maximum music output power of 35W per channel (25W per channel RMS). The circuit incorporates an on board power supply; therefore, only an appropriate transformer is required to power the circuit.

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Supply voltage: 24 to 32V AC Transformer / 2A (JRC-5632-1) Input sensitivity: 300mV Output power using 32V AC: Music power – 2 x 35W / 4 Ohm RMS power – 2 x 25W / 4 Ohm Includes volume and balance controls Maximum distortion: < 0.2% Frequency response: 30Hz to 30KHz PC board dimensions: 4.51" x 2.01"