"Even on a hometheater setup?"
Given you have a nice subwoofer, and presumably a multiple speaker array (given the "home theater setup" comment), I wonder if that extra size going from the 804 to the 802 would be an improvement. The 804's, relegated to midrange and mid-bass duties, augmented by a subwoofer, and taking only front Right and Left signals, may be just fine without going to the trouble to get the 802's. If it were just a 2 channel music only system the upgrade might have more benefits.
Given you have a nice subwoofer, and presumably a multiple speaker array (given the "home theater setup" comment), I wonder if that extra size going from the 804 to the 802 would be an improvement. The 804's, relegated to midrange and mid-bass duties, augmented by a subwoofer, and taking only front Right and Left signals, may be just fine without going to the trouble to get the 802's. If it were just a 2 channel music only system the upgrade might have more benefits.