I've been a rabid audiophile for thirty years. The M3s were the best speaker I have had in my system since I started down the rabbit hole. They need a good source as do any high end speaker but they have you everything you could want in space, articulation, accuracy, speed, coherence, soundstage etc. The 802D4's are a very competent value play but don't measure up to the M3's. Given their price difference, this is to be expected. Someone without a serious addiction to "What's Best" could easily live with them for a lifetime.