friend of mine has the transducers under the legs of his HT chairs, and they move a little side to side, vibrate and shake, I personally don't like them, I think they are distracting. They seem fun to a lot of visitors, impressed w/ shaking seats, but as for my enjoyment, I get tired of them and sit in other chairs in his HT ones without the transducers; good subs are what I like to hear/feel. That seems more realistic to me, but maybe my buddy has his transducers turned up too much.