Bazooka MBT8014 8-Inch 4-Ohm Marine Ported Marine Bass Tube With 8" Subwoofer uv-Resistant Enclosure4-Ohm Impedance Power Handling: 6-150 Watts Rms frequency Response: 39-1500 Hz Sensitivity: 102 Db8-9/16"W X 10-1/16"H X 18-5/8"D Eight-inch passive bass tube for marine systems Eight-inch, waterproof subwoofer with 150 Watts power handling Stainless steel hardware Weather-resistant, velcro-reinforced mounting straps Salt fog and UV certified