Originally Posted by shortfuse
Bass Shakers work on the concept that low bass is mostly felt and not heard. Feel the earth-shaking bass from your movie or video game soundtracks. Designed to play all low frequencies of music, movies or video games from 100Hz and down. Perfect for making your own movie or video game chair. These units simply mount to the bottom of a seat to feel awesome bass. Requires only 25 watts of power from any stereo amplifier or home receiver to play at maximum levels. Hooks up like an ordinary speaker. it works pretty much the same as a RUMBLE PACK.
It;s like $120 or so