Many Lexicon owners like the Music 7 mode for multi-channel music out of whatever source. I assume it can be applied to a six-channel input, but have never looked into it myself. I'm not sure I'd want to go with a synthesized 7-channel mode when I could have 6 discrete channels from the source. So, for two-channel sources played back in multi-channel, yes, the Lexicon is great choice. For the new formats, I don't see where the Lexicon's processing power is any real advantage because I wouldn't want to employ it on a true multichannel SACD or DVD-A.
I've owned the DC-1, MC-1 and now MC-12, so I'm definitely a Lexicon advocate. They have a great record of offering their customers aggressive trade in values on new models. I find the MC-12 to be a very nice step towards "true" high-end, although I greatly enjoyed the MC-1 for music playback as well. If you have a system where you like both music and movies, and you want to keep the system as "simple" as possible, it's a fabulous choice IMO. -Kirk