What an epic write up. I hope that I wouldn’t disappoint you
I’m not quite happy with my approach, because I work like Edison who tried all combinations and took note, rather than like Tesla who reasons to reduce the guesswork. All the maths and physics are threatening, though if I learn more and rely more on simulation, for instance, I think I can get better results. That’s why I am enthusiastic about Smabat M4. Normal people can swap drivers and tuning rapidly to learn.
I’m still puzzled why sources sound different. Reviewing Shanling UP4 at the moment, and I feel like a fraud for saying that Andromeda sounds richer and more impactful on UP4 comparing to Apple dongle. I mean it’s Andromeda. It requires only peanut in power output to make sound.