Hertz HMS 10 S4-LD-SW marine subwoofer is designed to be installed without the need for a dedicated enclosure delivering powerful and precise bass in any vessel.  Sport white grille, featuring built-in LEDs, can be easily removed to be painted with the perfect color for your vessel. HMS subwoofers are designed to be installed without the need for a dedicated enclosure delivering powerful and precise bass in any vessel. The motor and suspension design is optimized for high-power, infinite-baffle operation featuring long linear excursion capability for tremendous output with low distortion. Hertz Marine subwoofers not only add tons of bass output to your system but also relieve the main speakers from the hard work of reproducing the lowest frequency range, maximizing the overall system performance, for unlimited sound pressure and emotion!