OK, from the 30 pages of amp discussion, I now have the impression from these recent posts that you have arrived where you want to be and that you hold the new cables and tubes responsible for your satisfaction. Your enthusiasm for the new sound is evident.
By "right" amp, I mean you were contemplating amps to solve your issues with upper bass lower mid energy and midrange warmth. It was presented and discussed as a trade off. Now, you seem to indicate that it was not amps at all, but rather cable and tubes and now those give you want you wanted. I don't recall prior complaints about sibilance.
This is why I asked about the large scale symphonic music at loud levels. If your friends no longer hear compression or clipping or restriction with that demo, then, it would support your claim that it is tubes and cables, not amps that were the issue/trade off.
I appreciate that you were very happy before. Now you are more happy, and if you can gild the lily some, you will be even more happy. It is a progression and understandable.