Poly-Planar Box Subwoofer Compact MS55. It's small size enables it to be easil...Poly-Planar Box Subwoofer Compact MS55. It's small size enables it to be easily mounted below seats under the gunwale area behind the instrument panel or any convenient location. The MS-55 is a self contained bass unit requiring no cutting of panels...more
MS56 Box Subwoofer The MS-56 subwoofer is a compact high-efficiency bass enclo...MS56 Box Subwoofer The MS-56 subwoofer is a compact high-efficiency bass enclosure optimized for marine applications. Its small size enables it to be easily mounted below seats under the gunwale area behind the instrument panel or in any convenient...more