I'm looking to upgrade from my beloved VAC Avatar SE only because I'd like tighter bass. Depth is fine, but I also want "slam". I'm thinking: Tube preamp with a Class A Solid State amp.
Just a question. Where is the hall-mark of quality that only class "A" can give you all of this and "AB" class can not?
Do you think that "AB" class isn't up to the task?