I have heard both the 802D and 803D with a C46pre and MC402 power combo, and IT WAS OUTSTANDING WITH BOTH!! IMO I would opt for the 803D's and spend the extra cash on the music! I didn't hear that much difference between the 802's and 803's. I also heard the 803D's with the McIntosh MA6900 integrated (200W) and it was pretty impressive as well, but I still would have bought the 402. For me the only difference between 802's and 803's was asthetics. As far as long term investemt and reliability I can't speak for Classe, but my father has had McIntosh gear for 30+ years and it works as good as the day he bought it; and that along with the sound quality is why I am buying it!
Happy Listening.
Happy Listening.