HiFi Amplifier circuit schematic

This is HiFi amplifier use the IC TDA1111 . The circuit is quite easy to use, but the constraints on the IC is difficult to find my local region. If you have this IC , it is very suitable is made by this circuit. Minimum voltage on the circuit 6-Volt and a maximum of 20 volts. And voltage suitable for supply of 12 Volt. Maximum power output of 40 Watts with 4 ohms impedance, and frequncy of about 20Hz to 20kHz. See the circuit below :