3 Watt Stereo Amplifier Kit
This very small circuit is only 11/2" x 21/2", yet it uses the BA5406 Integrated Circuit (IC) for a powerful output. The amplifier operates on 12VDC, such as batteries, and the output can drive two 4 or 8 Ohm impedance speakers. Output is up to 3 watts, good frequency response.You will need to leave some additional space for the heatsink and for ventilation.
3 Watt Stereo Amplifier Kit Reviews: