10" Marine Subwoofer For Free-Air Applications Take your marine audio system to the next level with the Diamond Audio MS104FA 10" Motorsports Series marine subwoofer, engineered for powerful bass, rugged durability, and high-performance free-air applications. Designed for boats, UTVs, and outdoor environments, this subwoofer delivers deep, impactful low-frequency output with stunning visual appeal. Built for free-air (infinite baffle) installations, the MS104FA eliminates the need for a traditio
