Polk Audio Db104

Get the power and precision you want from your subwoofer, with the reliability that comes from a name you trust! Polk's db (Dynamic Balance) series subwoofers are engineered with state-of-the-art technologies, combining the best materials so you get top-notch performance and clean, smooth bass. The Polk db104 10" subwoofer features a polypropylene cone, shaped like a dish for extra rigidity. The cone is encircled by a tough Santoprene rubber surround that shrugs off the harmful effects of exposure to sun, moisture, and extreme temperature changes — this sub will stand the test of time! The Kapton voice coil former is triple-vented so the sub stays cool when the bass gets hot. And you don't have to limit these speakers to your car — they've passed tough environmental testing that certifies them for marine use as well.