Class A and B differences?

"but when you mention class B I believe you are refrring to class A/B."

No, I think he's right. "Class" A/B (althought there are plenty on the market) really isn't a class: its an amplifier that goes from class A mode into class B mode when the power demands reach a certain level. Randy Slone and Douglas Self among others cover it pretty well (saying exactly that) and many of their designs are Class B. I've seen other artcles on the internet that'll even state "Class B amps aren't used in Audio" and I don't think they know what they're talking about entirely. Incidentally, he does have a Spectron which is a Class D circuit and "even worse" than class A or B--loosely speaking. As TWL put it "the quality of implementation is the key."

I believe there have been a few previous threads on the subject in the archives now to help answer the original thread/question--can't vouch for the content though, but....

I retract partially--you may be right on the Class AB. But they both seem to be of the impression that to quote "Class AB is less linear than either A or B" and "is not really a seperate class of its own..." Or "Class B is by far the most popular mode of operation...." and many of there designs are just Class B. Parasound, Adcom, and Magnum Dynalab all claim Class a/b in many models. And Perraeux has that weird Class a/ab, which got me thinking more about what you said cause that would make sense for ab to be real, just a little weird.