With the Kicker stereo speaker system, a hip, square look combines with an efficient design to produce crisp, clear sound that can be appreciated within a vehicle or in other installations. The enhanced output of the Kicker S10L7 is due to simple geometry. A square has more physical area than a circle, so a square car subwoofer can provide more sound than a round one can. The Kicker stereo speaker system includes a 10-inch woofer that is 20 percent larger than the woofers in previous models, allowing it to move more air, thereby allowing more sound output. Along with this difference, the Kicker S10L7 also features a hyperextended pole piece that improves the range of audio from the woofer. Inverted Structural Dome technology keeps an even sound at high-pressure levels, while a dual voice coil provides each car subwoofer with flexibility when choosing where and how to wire it. The Kicker stereo speaker system is ideal for both sealed and vented boxes, and it provides good sound quality regardless of where it is installed.