I get along great with the RS7i using the CAT JL5 120W/CAT SL1 Black Path preamp. combo along with a set of YBA 600 Passion monoblocks for a different presentation. The YBA is one of those SS designs that has a very refined sound such as the Gamut D200i or the D250i monoblocks. I owned the D200i for a short period so I have heard them both. The Gamut and YBA have similar refinement and a lack of SS nasty's with musicality. They have some tube qualities with SS drive.
The CAT tube gear speaks on its own and they now run the tubes at a low level. Great feeling owning them knowing not much out there any better....simply amazing musicality with drive.
Happy Listening,
Gwalt