Poly-Planar MS56 Marine Box Subwoofer for Deep Bass Enhancement

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 location.

The MS-56 is a self-contained bass unit requiring no cutting of panels or holes in the boat interior. It produces solid, deep bass extending down to 40Hz and is the perfect addition to any audio system.

Features:

• Dual Voicecoil, high-excursion, 5.25" woofer


• High density, UV stable enclosure


• Water-resistant


• Bass-reflex, high-efficiency acoustic design


• Side vented output ports


• Compact size and molded-in mounts provide for convenient installation nearly anywhere

Technical Specifications:

• Max Power - 100W RMS


• Frequency - 40 Hz - 300 Hz


• Weight: 8.5 lb (3.8g)


• Dimensions (W x L x H) - 8-5/8" x 11.5" x 4-13/16" (218 x 292 x 122mm)

*Sold as an Individual

The Poly-Planar MS56 Box Subwoofer is a compact, high-efficiency marine audio solution designed to deliver powerful bass without taking up valuable space on your boat. Its small footprint allows for easy installation in tight areas such as beneath seats, behind instrument panels, or along gunwales, making it ideal for enhancing your marine sound system without extensive modification. This self-contained unit requires no cutting or drilling, simplifying the installation process while maintaining a clean, professional look. The MS56 produces deep, clear bass down to 40Hz, enriching your audio experience whether you're relaxing or entertaining on the water.

Constructed with a durable, water-resistant enclosure, the MS56 is built to withstand marine environments. The high-density, UV-stable housing protects the internal components from sun damage and moisture, ensuring long-lasting performance. Its bass-reflex, high-efficiency acoustic design, along with side-vented output ports, optimizes sound projection and bass response. The dual voice coil, high-excursion 5.25-inch woofer provides robust sound output and high power handling, making it suitable for a variety of marine audio systems. With a maximum power capacity of 100W RMS, it delivers consistent, reliable bass performance that enhances any onboard entertainment setup.

Weighing approximately 8.5 pounds and measuring roughly 8-5/8 inches wide, 11-1/2 inches long, and 4-13/16 inches high, the Poly-Planar MS56 is designed for flexible installation options. Molded-in mounting points facilitate quick setup in nearly any location on your vessel. This product is sold individually, providing a straightforward upgrade or addition to your marine audio system. For detailed installation instructions, refer to the owner’s manual available online. The MS56 is a practical choice for boat owners seeking high-quality bass performance in a compact, durable package, without the need for extensive modifications or professional installation.

Features:

• Dual voice coil, high-excursion 5.25-inch woofer for powerful bass output

• High-density, UV-stable enclosure for durability in marine environments

• Water-resistant design to withstand exposure to moisture and sun

• Bass-reflex, high-efficiency acoustic design for deep bass extension

• Side vented output ports for optimized sound projection

• Compact size with molded-in mounts for versatile installation