dponce80 writes "This $13,000 subwoofer, the TRW 17 from Eminent Technology is billed as the world's most powerful due to its ability to reproduce sounds with frequencies as low as 1Hz. Typical subwoofers bottom out at 20Hz, and while the human ear can barely hear below that point, it is still possible to feel the sound. This particular woofer does not have an enclosure, instead relying on a fan-like design, wafting a cone of modulated air into the room, and effectively turning it into a resonating box, in its entirety!"
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