The second generation of our M2 series 10-inch Color Optix subwoofers offer unmatched reliability with deep, powerful bass. The next gen performance brings enhanced responsiveness, superior thermal management and complete on-water lighting control and grille customization This M2D4-10I-G2 subwoofer is optimized for infinite baffle applications (when an enclosure is not an option) and requires a mounting baffle to adequately isolate the front and rear wavelengths. This woofer requires a Mounting Depth of 4.70 inches and a Cutout Diameter of 8.98 inches (more specs listed below) Color Optix subwoofers allow you to adjust your own bright, wide, and limitless lighting experience with the Rockford Fosgate Color Optix plug-and-play controller (PMX-RGB sold separately). The 2-piece grille allows for interchangeable customization with either the stainless-steel or color matched sport grille option The M2D4-10I-G2 has a Power Handling of 400 Watts RMS / 1600 Watts PEAK and to streamline installation, this subwoofer is equipped with a VersaSwitch to make changing impedance between 2Ω and 8Ω as easy as flipping a switch. VERSA impedance switch quickly allows series or parallel configuration without additional wiring Purpose Built for the Marine Environment, Rockford’s Element Ready products are built to stand up to Water, Salt, and UV rays. Famous Rockford Fosgate build quality with a full 2-year warranty The second generation M2 10-inch subwoofers create an unmatched audio experience, with class-leading output, complete on-water lighting control and grille customization. This subwoofer is optimized for Infinite Baffle installations, where an enclosure is not required. Sold individually (1 each).