Nakamichi has unveiled a beastly new 12-inch subwoofer upgrade for its Dragon home cinema system, which promises to shake rooms (and possibly your house’s foundations), with earth-shattering bass.

Nakamichi has thought of that, and wants you to enter the Dragon once more – this time by beefing up with not one, not two, but four 12-inch subwoofers to deliver a total 5,000W of earth-shaking ...