Red CD Wave Electro-Plated Cone - 4 Ohms Impedance - SPL: 85.5dB.Wide Butyl Rubber Surround w/New Pattern - 90 oz. Magnet Structure - Overall Diameter: 12.20''.Red steel Basket - 800 Watts Peak Power - Mounting Depth: 5.08''.Bumped Vented Extended Pole Piece - Fs:26.2, Qms:5.81, Qes:0.90.2'' High Tempreture Kapton Voice Coil - Qts:0.78,Vas (Cu ft)4.146 Pyle's Red Label speakers don’t just sound great – they also look stunning. This 12”, 800-watt subwoofer will give your sound system that extra kick you’re looking for. The red CD wave electro-plated cone reproduces the low-end accurately for punchy, powerful bass. The wide butyl rubber surround with bumped vented pole piece keep your speaker secure and distortion-free. It’s all powered by a 90 oz. magnet structure with 2” high-temperature Kapton voice coil. Look to Pyle’s Red Label for premium bass at a great price.