Polypropylene cone with nitrile-butylene rubber surround. Power range: 75-300 watts RMS. Sealed box volume: 1.15 cubic feet. Ported box volume: 1.65 cubic feet. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers".The seller is "megasoundco" and is located in this country: US. This item can be shipped to United States.