Thanks Phil,
i think it'll enough for practicing.
I'll simplify the schematic and make the boards. hopefully it'll works fine for guitar.
oh, and I'll put my BD-2 Clone in front of it as the pre-amp.  :cheesy:

So I found this OCL schematic yesterday and I'm thinking to use it as power amp for my guitar amp because the parts are easy to obtain here.
Now before I make the boards, here's a couple questions :
1. Does this schematic suitable for this purpose? or is there anything I can do to improve it for guitar amp?
2. If i run this amp with +/- 25V 3A transformer, how much power will I get?

Thank You.