That is a 25 watts in class A. with efficient speaker it will be more than enough!!!! The good part of diy is you can choose the desing, chassis, parts, class, power. There are many schematics, pcb boards, kits that you can get from diyaudio.com. if you need any help in electronics, you will find it there! These people are from all over the world and with very high knowledge, their toys are: ESR meters, digital multimeters, oscilloscopes, noise generators etc. when they start talking about formulas, schematics, designs, numbers etc...you will get crazy
lol.
They do the hard work and we (the diyers) fallow their steps.
