Quote Originally Posted by Boscoe View Post
I work in one of the UKs best HiFi R&D departments so I could answer this one!

People think higher voltage elec. caps sound better as they are meant to be more linear with change in voltage on their plates. Film is the best to use in this application. Use a large ECHU capacitor perhaps use two 470nF in parallel rated at 10V or 16V is absolutely fine.



If you mean R3 and R4 they form the global closed loop feedback.
Thats awsome thanks for the advice Boscoe :) Do you think I can convert this to SMD ? As your the first real sound expert I've talked to. I've spent months trying to learn this stuff but i'm just scratching the surface, what i really need is a good CMoy design that I can use SMD parts on so I can get it small enough and cheap enough to shoehorn into a tabbaco tin with 2 x 9v batteries. Any ideas ? :) I wont lie, I intend to sell them, I need the money lol