konzen said:i see. how big must my speaker be? this is a 2 inch one i think
That's probably only a 500mW speaker?, what's the output of the TDA2003 at the supply you're using?.
I mentioned earlier about layout being critical, this looks like you've just transferred the bad breadboard layout to stripboard? - the layout is still absolutely apalling, I would imagine it's very likely to be unstable?.