kosst says "Not really sure what Pass amps have to do with the general behavior of amps in general."
My answer to that is everything since kosst uses them as his point of reference.
So what he is saying is, he using Pass Labs as his reference yet he doesn't have any experience with Pass Labs past the one amp that he built?
Speaking for myself, if I have a question for Nelson I'll speak with Nelson or use his products for my own evaluations. Saying .02% means nothing to me. For example, tonight I made sonic changes to a recording I'm playing. I spread out the stage more and gave more presence to the cymbals. As a result the bottom end became more real and in better pace with the midrange. Am I now suppose to describe this in distortion measurements, or claim that I can only do this with class AB or D or A?
Fact is I can make these desired changes with any type of amp class. I can do this because I understand how systems play music and I have learned to tune them. No magic and no measurements, simple applied physics.
mg