Someone else mentioned Legacy Focus SE. I have the XD version of the same speakers, bi-amped leaving the internal amp to run the 12 inch subwoofers on each..... supplimented with 2 Rythmic 12 in subs. Where they need to, the bass rocks it in a very controlled manner with the rest of the speaker. Still though, cannot literally shake my pants legs the way my K-horn knock offs from the 80's did with ELP "lucky man". Loved those speakers but finally grew up and went with my current system that blows all of that away with amazing sonics out of a "real" speaker system. changed it all out and never looked back. Except for the 2 minutes just now. :-)
Speakers with deep/powerful bass
I used to have a system with large speakers. Each speaker had two 12" woofers. When I would play Hard as a Rock from the AC-DC BallBreaker CD there was a moment at 35 seconds into the song when it felt like someone was jumping on the floor behind me. This would only happen if my JPS Labs Golden Flutes were looped into the system, and it was playing very loud. Without the Golden Flutes it didn't happen. It was a truly frightening experience the first time it happened, because I was home alone. Has anyone else had anything like this occur?