Schematic Reference

22W power amplifier

This is another simple and easy to build amplifier. This circuit provides 22 watts and it is enough for
small audio systems. As this circuit requires 12 volts DC supply you can use this as a booster amp for
car speakers.  We recommend for you to use 4 ohms speaks to get best results. Although 8 ohms
speakers you can connect. Make sure you use good heat sink compound between the IC
and the heat sink .Try to use a fan to cool the hot heat sink if possible, otherwise we recommend to
have a big large heat sink.

For this small amplifier you can use our tone control circuit to control the bass, treble and the volume.
 For stereo systems you may need to make two circuits of this.