Kenwood Excelon P-XW1241S 12" Preloaded Subwoofer Enclosure Kenwood's Excelon Series mobile audio components feature their highest level of technology in advanced designs that give you the great sound and quality you expect from Kenwood. Their subwoofer enclosures are built to last, with solid construction and subs that are made to kick out the jams. The P-XW1241S comes loaded with one 12" 4-ohm Excelon Series subwoofer. The sub's polypropylene cone features a diamond array pattern to minimize distortion, while the rubber surround and computer-optimized stress-controlled spider keep things on track. The speaker is designed to dissipate heat generated by extended high-powered use, with internal works that direct airflow to avoid overheating. The rugged enclosure is built from 5/8" MDF with a 3/4" thick internal baffle to give the sub solid support. Rounded port corners reduce port noise and airflow resistance. The P-XW1241S can be used in front-facing, rear-facing, or down-firing applic