Bone-shaking audio might not be much of a draw for the over 30 crowd, but for teenagers — well, that’s a market unto itself. Isn't it all too common to be stopped beside a car blasting beats so powerful, it rattles the windows of your car? Loud music — especially the bass range — is like a rite of passage for the younger generation, and though the car audio market is ample, music-loving gamers have mostly been limited to vibrating controls and a few oversized speakers. For the teens at home who still want that booming system, the Subsonic Chair is a luxury electronic that lets them listen to music and play games while basically perched on a subwoofer.