TDA7496 2x5 watts stereo class AB audio amplifier circuit

This class AB audio amplifier circuit from this schematic is a stereo 5+5W class AB power amplifier assembled in a Multiwatt 15 package designed for high quality sound, TV applications.
This class AB audio amplifier circuit is based on the TDA7496 audio amplifier IC .
Main features of the TDA7496 include linear volume control ,Stand-by and Mute functions , 5+5W OUTPUT POWER , short circuit protection , thermal overload protection .
The TDA7496 is pin to pin compatible with TDA7496S, TDA7496SA, TDA7495, TDA7495SA, TDA7494S, TDA7494SA.

Typically the power supply needed must deliver 22 volts for 8 ohms load impedance and 12 volts for 4 ohms load impedance .
The maximum output power which can be obtained with this audio IC is around 5.5 watts on 8 ohms load with 10 % THD and 4 watts with 1 % THD .
When is used a 4 ohms load impedance the maximum power which is obtained is 2.1 watts with 10% THD and 1 watt with 1% THD .