Hi, I have a spare AD815AY and wondered if theres any nice headphone amp circuits floating around I could try out using this chip. I've already built this guys pre-amp http://www.diyaudio.com/forums/showt...594#post831594 The sound is very good when used as a pre-amp, much better than...

I'd like some opinions please for this diy amp http://headwize.com/projects/showfil...lerano_prj.htm Is it good and how does it compare against other diy amps like the WNA,Pete Millet,JLH etc? My headphones are sennheiser hd600 Thanks a lot