Ptss, Your post is kind of a mixed bag, in that it deals with both performance quality of a relatively obscure piece, recording quality, and power conditioning. It is not surprising to me that no one responded to a post requesting comments on the effect of power conditioning on a particular recording of a fairly obscure piece of chamber music, not to put to fine of an edge on it. Believe me, I have spent most of my life trying to understand why everyone was looking at me like I had giant lobsters crawling out of my ears, so I feel your pain!
I am a lover of chamber music. I don't own a single recording of any of the Borodin Quartets. I would have expected any comments might have come from some of the more knowledgable members with respect to serious music, i.e, Frogman, Learsfool, or Schubert.
I have only a latent interest in Borodin, stemming principally from his primary occupation as organic chemist. I take your post as a cattle prod to investigate his music further. I will take a look at what is out there and perhaps place some orders.
Do not let the lack of response dissuade you. I would very much love to see more discussion of chamber works on this site. Even better from my point of view would be a sudden surge in interest in the music of Heinrich Schutz!
Darn, there go those lobsters again.