My buddy is running 4 studio 20's and studio-cc with a Denon 1802 and it sounds great.. I doesn't sound as good as mine going through a 200w Cinepro amp but he is VERY happy.. Im sure the 4802 will sound very nice.. I like the Paradigm/Denon combo.
Absolutely. The 4802 is THX ultra rated, right? It should have no problems what so ever bringing out excellent sound from your speakers. It will suffice most moderately sized theaters to reference levels.