Here is a high quality 12 watt amplifier circuit with stereo. The heart of the circuit is a TDA 2616 IC which is a stereo amplifier IC comes in 9 leads and SOT131 package, and designed for mains fed amp circuits like tape, radio, television etc. It requires only few external components which
makes the circuit ideal to use as a portable amplifier. The IC has good gain balance between both channels, and also has a special builtin circuit which prevents click sounds during power on and off.