Brand-X XFL12SPL 12'' High Power Dual Voice Coil Subwoofer 12'' Super Stiff Treated Pulp Ultra-Lite Cone - Die Cast Aluminum Frame - Includes Installation Template Oversize High Density Foam Surround - Power Handling:2000 Watts Rms / 4000 Watts Peak Dual 3'' High Temperature Baccar Voice Coil - Frequency Response: 30hz-1200hz Double Stacked 320 Oz Magnet Structure - Impedance (Per Coil): 1.2 Ohm Vented Pole Piece Back Plate - Effciency: 91db