A similar thread happened here before. (And I’m sure will again). Atmosphere makes amps he is quite knowledgeable. But and it’s big but, he’s already gone through many iterations of hifi and made he’s conclusions. I don’t agree with them, for one very important reason, this is a hobby, it’s so much fun to explore, it’s not have people tell you you won’t like something when in fact, if your like me or many others, you actually will. I think this is how to quote the prior thread. Maybe just buy used amps and see how they sound and sell them on if not to your liking. prior thread - https://forum.audiogon.com/discussions/300b-or-2a3-set-class-a-for-heretic-model-a