SS amps with little or NO feedback

CODA Technologies amplifiers use no global feedback. The company was founded by former employees of Nelson Pass in his Threshold days.

Unsound's suggestion of some of the older Threshold amps may be a good way of obtaining a no global feedback amp at a modest price.

NGJockey makes a good point about the complementary benefits of differentially balanced design, but of course a quality zero feedback fully balanced design will not be inexpensive. Ayre is a good example.

Also, I've seen the Clayton Audio amps, which apparently are outstanding, described as using virtually no feedback. However they are Class A and therefore don't meet the criteria you listed.

Best regards,
-- Al

Al - Fully balanced design has very high CMRR but I wouldn't care about small amount of sweet sounding second harmonic. I would be more concerned with unpleasant odd harmonics created by negative feedback.

How about the Pass X series? Try for the X.5 if you do. They are cheaper ($ for watt) and more powerful than their XA series. They have a nice white paper about the Super Symmetry circuit here.

http://www.passlabs.com/pdfs/articles/susy.pdf

FWIW, I have been using their XA.5 amps for years on my Maggie 3.6's.

Also, the Modwright amplifiers have zero global feedback, and by most if not all accounts are outstanding performers in their price range.

Best regards,
-- Al

Kijanki, if it is a true balanced differential design the main harmonic created will the the 3rd, not the 2nd. All the even orders should cancel. This is true of tube or transistor designs.