10W Mini Audio Amplifier

Hi i need some assistance finding information about a 10W mini audio amplifier and a list of possible errors and how exactly can i calculate it....Anyone that can help ......

 

Isn't this a homework assignment? Of the 115,000 hits Google finds on "10 watt audio amp circuit", here is the one called "10 watt mini audio amplifier".

The data sheet for the amplifier IC should let you discover possible error sources.

 

Electronics-Lab has a 10W Mini-Amplifier project: http://www.electronics-lab.com/projects/audio/016/index.html
It does not use the parts recommended by the manufaturer of the TDA2003 IC so it probably does not work.
If it did work then its output will be no where near 10W, it is only 0.9W into 8 ohms or 1.7W into 4 ohms at clipping with the 9.0V supply in the project.

The IC is spec'd to produce 10W into 2 ohms with a 14.4V supply and a horrible 10% distortion. It clips at a little over 7W.