Hi - I've got the 802Ds powered by a BIG McIntosh - MC2500, which is 2 X 500. For some songs, it completely thumps. For other songs, the bass sounds a bit light. When I'm listening to a song and the bass sounds light, I move the speakers back toward the corners of the room about 6 inches. Makes all the difference in the world. I'd be very reluctant to put a sub or subs in the room with them. They're just so accurate that I feel like I'd be doing them a huge injustice. Moving them back 6 inches seems to make them way more bass-y. For some songs; too bass-y. I've come to enjoy giving them a good shove once in a while, depending on the type of music I'm listening to. Even though I rarely give them enough power to really let them shine, they're nothing short of amazing. My advice: get them, give them plenty of power and a decent-sized room and let B&W show you what you've been missing in your music.