Check out this completely over-the-top, my-PSPICE-can-beat-up-your-PSPICE, yeah-but
transistors-are-cheap stereo, balanced, ALL DISCRETE Class A CD output filter. DC path with OP97
as the servos. Sorry, no kits are available (snicker).
http://www.synthtech.com/pix/krell_output.jpgPaul S.
(don't panic, just taking a little break)