Our 8” and 10" 4 ohm Marine Passive Bass Tubes are high power handling woofers that are highly efficient thanks to the Bass Tubes enclosure. They’re the perfect solution to the lack of bass in most audio systems as they can restore the missing low end in your system without sacrificing coveted storage space on your boat. They have a 2” high power/high temp voice coil, 8” or 10" high power handling woofer and are salt, fog and UV certified. For secure mounting and easy removal, we’ve included weather-resistant, Velcro-reinforced mounting straps, too.