Replacement for CJ MF2200

I owned the mf2250 which I believe was the model that followed the mf2200.
Amps that replaced my 2250 that i feel were better performers and fit your description include the Pass XA30.5 and Jeff Rowland Model 2.
An SMC upgraded Mccormack DNA 1.0 might be worth seeking out as well.

Depends on where your priorities are. I always look for value, and usually find that in pre-owned gear. But, it does come with more risk. You're safer with brands that still offer support like those I mentioned, or with something like a McIntosh which are reliable and still serviced by outfits like AudioClassics. In fact, for the $1500-3000 you could spend on the Parasound units, I would be looking at the list of amps on the AudioClassics site. But that's just me. Everyone has their own priorities.