Did you do any listening comparison's of the MC-8 versus other Prepro options before you purchased it?
I did indeed. As I mentioned, I owned a Rotel RSP-1068 prior to the Lex (and a Rotel RSX-1055 receiver prior to that). The Lex is quieter and less clinical. I also compared to an Arcam processor (AV-8 I think it was). The Arcam sounded nice, but it was a bit closed-in sounding at frequency extremes. There was a touch of graininess via the analog passthrough.
I did an in-store comparison between the Lex and a Classe processor, and found the sound to be very similar in the demo system, but the Lex was easier to work with despite the LCD display on the Classe. In addition, the Lex is easily upgradeable.
I tried the Linn Unidisk SC, which I really wanted to like because it has nearly everything in it that I was looking for, but I found it to be lean and forward-sounding in my setup, and had no 7.1 capability.
I also tried a Meridian processor, but it was pretty much useless without other Meridian components in the stack - seemed to me that an all-Meridian system is pretty much of a necessity.