I feel your pain and I mean no disrespect, but if you want to change something, change the way you buy and stop buying without audition. Any other way is just hit and miss. I understand that it is impossible for people in some locations, but I think if you buy new there is usually a return option. That said, I would change the speakers. These are just not working for you. Been there. Also, while some doubt this, speaker cables made a huge difference in my Harbeths. If your lengths are not too long, try a used set of audience AU24, or Purist Poseidons, which are not too expensive. Both sounded much smoother and more realistic than Belden cables in my system.
Warm Tube Amp(s) to Tame Hyper-Accurate Speakers?
I have these Spendor D9.2's mated to an MC275 VI and the mids and highs are still too much, sometimes. Sometimes the sound is sublime based on the recording, sometimes harsh. I imagine perhaps Focal and B&W folks know what I speak of, maybe not Magico owners. Even using a C2700 tube pre-amp. Can this be solved with a WARM tube amp, and if so, which ones? I like my MC275 VI but I am open to suggestions.