Polk Audio UMS108SR 10" Marine Subwoofer Ultramarine Silver

The Polk Audio UMS108SR is a premium 10-inch marine subwoofer engineered to deliver deep, powerful bass in the harsh marine environment. Built with Polk's renowned weather-resistant construction, this subwoofer combines intelligent design with rugged durability to withstand sun, salt, and spray.

The UMS108SR features a mica-reinforced polypropylene cone that handles up to 350 watts RMS (700 watts peak) while maintaining excellent sound quality. The cast aluminum basket provides exceptional rigidity, reducing distortion and delivering clean, hard-hitting low-frequency performance. Its innovative air-suspension design eliminates the need for a separate enclosure, allowing flexible installation in any panel of your boat.

Key Features:

• 10-inch marine-grade subwoofer with silver Ultramarine finish
• Air-suspension design for free-air installation without enclosure
• Mica-reinforced polypropylene cone for durability and performance
• Cast aluminum basket for maximum rigidity and reduced distortion
• High-temperature voice coil withstands extreme conditions
• Snap-on grille installation option for easy mounting
• Weather-resistant construction for marine environments

Technical Specifications:

• Power Handling: 350 watts RMS, 700 watts peak
• Sensitivity: 89.2 dB
• Cutout Diameter: 8.8 inches
• Mounting Depth: 5.71 inches

Package Includes:

• One (1) 10" subwoofer
• Snap-on grille
• Mounting hardware
• Installation manual

Sold individually. Perfect for upgrading your boat's audio system with deep, impactful bass that performs as well as it looks.