Marantz SC-7S2 solid state preamp- how good is it?

I've only heard about 8 hrs of music on a new one that may not be broken in yet- 4 of those using a Carver power amp (tfm-15cb),the other four hours with the Ma-9s2 monoblocks.
So far (admittedly,not very) It has been noticeable mainly by it's absence.That is to say that it hasn't really drawn my attention-it's just there doing it's job. I'm thinking it's REALLY neutral sounding.

Hooper characterized the sound of the Marantz system as sublime-precisely the word a friend used to describe it a couple of days ago.
I don't know what speakers you are using, but with the Dynaudio's (which some refer to as "clinical- sounding")
the synergy seems very good.
In re: other amps, the aforementioned Carver tfm-cb is the only other amp I've heard it with and I've never heard it sound better.