The R2-2X12 loaded enclosure features powerful bass output, high quality construction, and easy drop-in installation. The R2 12" subwoofers offer more bass and more power handling though its dual voice coil design that handles 500 Watts of thumping performance. The pre-built enclosure is internally wired to a 2-ohm load, so you just need to add an amplifier for epic bass performance, all right out of the box. The high-quality construction of the enclosure is built with 5/8" MDF (medium density fiberboard), OEM grade carpet, and high current binding posts. Built with class-leading materials, not only for a next level look, but to ensure next level performance.