that magically comes to life when The Matrix flashes across the television screen. The SuperNova MKIV-12P is a big-lipped powerhouse of a subwoofer that pretends to be nothing other than that. When this 15-inch cube busts out, its fully exposed drivers...

Meaty, beaty, little, and bouncy. The Earthquake SuperNova could be the world's most dangerous end table. No amount of Krazy Glue will repair the heartbreak of the unwary soul who dares place the family-heirloom Tiffany lamp or Waterford vase on this...

Even as the Sunfire-inspired bass race shifts from bigger and louder subwoofers to smaller and even-louder ones, Earthquake subs remain among the loudest and, dollar-per-decibel, among the top performers. Earthquake says the SuperNova MKIV-12P ($1,697)...