I listened to the MC2000, didnt' really care for it all that much. Retail on it is $15k btw, though they have been sold here for $8500 on occasion. A decent enough amp, but not worth 15k. I didnt' care much for the bottom end, it sounded flabby, loose, and overly warm, with little bass or control. this was on Watt/Puppy VI combo.
the Conrad Johnson premier 5 monoblocks (~$3-4k/pair used) I thought were much better than the MC2000, and a whole lot cheaper too.
YMMV,
-Ed