2 Channel Power Amplifier Circuit Diagram. Here is the simple 2 x 30w audio amplifier with stk 465 power ic. You can also make a 5w mono amplifier out of it.

La4440 is a two channel audio power amplifier ic with inbuilt in dual channels enables it for stereo. Simple circuit with higher power output this amplifier circuit is very easy to build. Power audio amplifier circuit schematic 2.

And the other 2 channel is using for mid and treble speaker.

La4550 is a 2 channel audio frequency power amplifier ic specifically designed for radio. Many power amplifier circuit diagram with pcb layout. You can also make a 5w mono amplifier out of it. You can choose 0 5w to 1 200w.