Ish
fwiw I have a few friends who are very accomplished Classical Musicians who could care less about audio and are pretty content with what I would consider to be low end systems. It makes me wonder if their brains fill in the missing information...
it seems that good honest bass reproduction is a priority for you. I would get the speakers right first. Have you considered a subwoofer? Some of them are more sensitive musically than others which are geared more towards rendering loud explosions for movies. Anyway, a decent sub added to your current equipment and properly integrated can improve your system because it takes the strain off the speakers and the amp in reproducing the low end and lets them concentrate on the mid range, where most music lives. Just a suggestion for you as your posts haven’t mentioned trying a sub in the past. I have a Paradigm sub in my HT System which I think gives a nice weight and texture to stand up acoustic bass.