Ellery, there is no such thing as a 5802, perhaps you meant a 3802? If so, the 3802 is approx. a $1K unit while the 5803 is approx. a $4K unit. There is a significant difference in sound quality. I have a 5800, the predecessor to the 5803, in my HT system. While it doesn't sound as good as the Rowland seperates in my main rig, it is highly listenable. You have to pick the right speakers, cables, etc., i.e. get the synergy right, and it performs at about the same level as mid-priced seperates.
