Thank you for your suggestion on Revel and KEF. I used KEF, old and Uni-Q, but both are not "my cup of tea", for various reasons. Ever since I bought X12 and later heard C1 at the same dealer, I am thinking about upgrade. Maybe it would be better to save up for C1 Platinum (even gently used) than buying Special 40 and getting disappointed...
Listening Jethro Tull right now, Living In The Past double LP, good old Chrysalis pressing. Nice evening, and I want quiet but great music. By the way, not audiophile wet dream recording, but amazing considering the time when created. I just need that "little bit" that I get when volume goes up. Kick drum and snare are there, with that natural compression of the hit, but no weight I heard on C1.
Or, I'm idealizing, trying to find a reason for upgraditis neurosa...