BOSS Audio D10F 800 Watt, 10 Inch, Single 4 Ohm Voice Coil, Shallow Mount Car Subwoofer Sensitivity SPL (1W / 1m) 87 dB, Resonant Frequency 50 Hz Poly Injection Cone, 2 Inch Copper Voice Coil, Rubber Surround Sealed Enclosure Internal Volume: .6 Cubic Feet 3.4 Inch Mounting Height, 9.2 Inch Mounting Hole Diameter Dimensions: Depth 10.6 x Width 10.6 x Height 4 3 Year Platinum Online Dealer Warranty