the new STROKER series subwoofers are built so that you can feel the bass and not just hear it! The heavy industrial strength textured basket frame provides strength and durability while an exotic pulp treated semi-pressed cone and oversized large roll surround are utilized for extreme excursion capabilities on the latest STROKER subwoofers. The STROKER series comes in a 2-ohm and 4-ohm version and are available as in 10-inch 12-inch and 15-inch sizes. For extreme bass response and high SPL output the STROKER series subwoofers will bring it! STROKER Black Ribbed Design Pattern on Treated Semi-Pressed Cone Heavy Industrial Strength Textured Basket Frame Elevated Motor Structure Cooling Design Oversized Polished Black Chrome Finished Terminals Klippel DA Optimized Motor and Suspension Symmetry Power Handling: 1200W / 2400W. Sensitivity (dB @ 1W 1M): 89dB. Mounting Diameter: 14.07 in./357.4mm. Mounting Depth: 9.48 in./240.9mm. Vented Enclosure Volume: 2.0 Cu. Ft./56.6 litres. Vent Dimensions: 1.18"x 16" x 19"/30mm x 330mm x 482mm.