Kicker CompRT 8" 1-Ohm Subwoofer Kicker 43CWRT81 COMPRT8 8" 600 Watt DVC 1-Ohm Car Subwoofer Impedance [Ohms]: 1 DVC Mounting Depth [in, cm]: 2-11/16, 6.7 Max Sealed Box Vol [cu. ft, L]: 1.0, 28.32 Max Vented Box Vol [cu. ft, L]: 1.2, 34