Kicker 12" Marine Subwoofer 45KM122Bring on the waves! The KICKER KM 12 inch Marine Subwoofer makes serious bass in a sealed or ported enclosure. Engineered to take the power and the weather, this sub is custom made to thump in your boat. MAKIN' WAVES Packed with features and made for marine, KICKER gives you the deep, loud bass your boat needs with the KM Series of subs. Put it in a sealed or vented enclosure, and youve got some fun times ahead! FEATURES Two Ohm Voice Coil Injection