The IC used in this project is not common these days, but if you have one you can build a high quality audio amplifier. The BTL configuration can source up to 6 W to a 16 ohm load. For new projects the LM2878 is easier to find, but also not much common these days. The circuit can be powered from a 24 V source and rains up to 800 mA.
6 W Audio Amplifier using the LM378
