it looked like a good idea.But its hard to find.you have been known if you would tried to find it.i am looking for circuit with pcb or isis schematics.most of the circuits are quite old its used lamb diodes.So i want to build powerful and new one
I'm very surprised that you did not found any useful circuits on diyAudio.com or google, and now you've posted the same question on another thread!
But there's also www.hobbyprojects.com/A/audio.html with many more amplifier circuits for you to choose and to experiment with.
Building these will be the best way to learn about them. Enjoy!