May I throw my 2 cents into the “ we all hear differently” issue?
I don’t think the issue is that we all hear differently. I think the issue is that no stereo in the world can even remotely duplicate the sound of many kinds of live music, so we each have a different priority of what helps us pretend we’re hearing the original musical event.
Case in point- we went to a restaurant in Alexandria, VA last night that had a big band jazz band- I counted 17 pieces plus the singer. The only ones that were amplified were the keyboard, electric guitar and singer. All else unamplified. When the band got going, the sound was unbelievable. No you coudn’t hear the fingers on the strings of the guitar, the valves on the horns or the exact placment of the instruments, but the sound of the live music was breathtaking. I turned to my friend (also an audiophile) at one point and said “no stereo in the world can even come close” and he nodded his head.
So I think the issue is that every recording and stereo in the world only presents a facsimile or suggestion of the live performance. And people have different priorities as to how to try recreate the live performance in their mind. Some like to hear every detail, some like a strong soundstage, some like hearing the highs or bass, some like dynamic range- whatever helps you create the illusion in your mind of a live performance. To me that accounts of the wide variation of what stereos people like, and what stereos people design, rather than “we all hear differently”.
What a treat to hear this band in a restaurant!