Brand-X L12804D 12'' High Power Subwoofer New Design Injection-Molded P.P. Cone - 2.5'' High Temperature Dual Voice Coil - Mounting Depth: 7.4'' Specially Treated Black Foam Edge Suspension - Impedance: 4Ohm Titanium Finish Basket - 1650 Watts RMS/700 Watts Peak Silver Plated Terminal - Overal Diameter: 12.6'' Plastic Magnet Boot For Better Protection - SPL@ 1W/1 M: 98dB