he Rockford Fosgate M2D2-12I is a premium 12-inch Color Optix™ infinite baffle marine subwoofer engineered for boats, UTVs, and powersports systems that need strong bass without a traditional enclosure. Its biggest advantages are the true free-air design, RGB Color Optix™ lighting, and Element Ready™ marine durability. Main Features 12” infinite baffle marine subwoofer Dual 2-ohm voice coil configuration VersaSwitch™ selectable 1Ω or 4Ω impedance Color Optix™ RGB LED lighting Element Ready™ marine-grade construction IP67/IPX6 water intrusion protection UV-resistant polypropylene cone Santoprene™ surround Deutsch™ and Amphenol™ waterproof connectors Designed specifically for free-air applications Specs Specification Details Subwoofer Size 12" RMS Power 400W Peak Power 1600W Voice Coil Dual 2Ω Mounting Type Infinite Baffle / Free-Air Mounting Depth ~6.6" Cutout Diameter ~11.1" RGB Lighting Color Optix™ Marine Rating Element Ready™ Water Resistance IP67/IPX6 Impedance Options 1Ω or 4Ω Approx. Shipping Weight ~21–23 lbs