Titanium Injected Polypropylene Cone - 2'' High Temperature Dual Kapton Voice Coil - SPL: 85 dB.Non-Fatiguing Big Rubber Suspension - 2400 Watts Peak Power - Overall Diameter: 12.60''.Chrome-Platted Dome Steel Basket - Impedance: Dual 4 Ohm - Mounting Depth: 6.60''.Magnet Sealed Within Basket - 60 60 oz. Magnet Structure.Allen Key Magnet Bolts - Fs:23.2, Qms:4.92, Qes:0.84, Qts:0.72, Vas (Cu ft)4.908 The Pyle Chopper series has been specially designed from the bottom up to provide quality sound in a sturdy form factor. This 12”, 2400-watt subwoofer is chromed out with a titanium injected polypropylene cone for a great look as well as a great sound. The 2” high temperature dual Kapton voice coil and 60 oz. magnet structure provide a booming sound that is simply unrivaled. You’ll have the best sound around with these subwoofers.