If I may.. This "Buttkicker" thing you guys are referring to.. Is it a normal bass output that comes with most stereo set's for PC or is it an specific one, like the search I've made, that looks like a R2D2 unit that goes under the chair? I don't know about the buttkicker itself, but my bass box really can't find those extra frequencies ryan said earlier. Should I go for one? Is it expensive? Cheers.