Macworld's Game Room recently posted a review of the Buttkicker Gamer, a bass amplifier which attaches to the center post of a standard office chair. Designed by the Guitammer Company, the ButtKicker is intended to add a bit of rumble to your favorite games. The device managed a score of 3.5 out of 5 mice.

From the review:

If you have a strong enough signal, the rumble effect is remarkable. I tested it out with a few of my favorite movies, games, and audio tracks, and was pleased with the results. I could really feel the bass in a way unlike anything I’d experienced before—imagine sitting naked on subwoofers.

One warning: the ButtKicker Gamer will rattle any loose plastic on your chair.

Macworld Game Room: ButtKicker Reviewed

The ButtKicker Gamer

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