The M2D4-12I Color Optix™ 12” DVC 4-Ohm infinite baffle subwoofers deliver loud, clear, accurate bass, and light the way for your journey! M2 provides a customized look by using either the stainless-steel grille or the white “sport” grille inserts. The subwoofers connect with the Rockford Fosgate Color Optix™ Controller and RF Connect App, allowing you to customize your own color patterns. The Element Ready™ design and IPX6 certification makes them truly purpose-built for marine or motorsport applications where protection from damaging UV rays and water spray is essential. This subwoofer is optimized for Infinite Baffle installations, where an enclosure is not required.