Help your music come alive by playing it through a PowerBass powered subwoofer. These enclosures contain a driver and amplifier which carry sonic beauty without taking up much space. Just plug your box in, slide it under the set and crank of the volume. We carry many PowerBass active subwoofer solutions for cars and trucks. The ported enclosures have the biggest sound while sealed boxes offer precision thump. Score big on power and price with a 60-day guarantee from OnlineCarStereo.com.