PS Audio BHK lacking..

In my experience, the stock tubes are better than any of the 6volt tubes I tried including the Tungsrams, and better than Radiotechniques 12au7. The Psvanes have a cleaner midrange that is more balanced with with the highs.

Interesting on your experience on the Psvane tubes.  Just goes to show how system synergy and personal preferences are so important.  Most folks on the PS Audio forum have preferred alternatives, as have I, but that certainly doesn't invalidate yours or anyone else's experience.

Don’t lump McIntosh in the same group as Rotel.  Rotel is a joke compared to McIntosh. Back in the 70’s, the only stores that sold Rotel were those that couldn’t get credit from any of the other companies. Shame on you!

I was thinking to replace my parasound jc2 with BHK preamp for the last couple of months, but looks like other experiences and opinions r so controversial. Now what I have is big big doubts. Should I do it and will SQ get benefited from it !!!???

fertguy-Is it possible that your speakers are out of phase? That could cause what you are describing.