With our Kicker 40dcwr122 CompR™ Subwoofer loaded inside dual-sub boxes, the end result is intense. CompR Loaded Enclosures present a simple way to upgrade a sound system and satisfy the most radical bass cravings in any vehicle. Certified Authorized Dealers nationwide expertly install KICKER Loaded Enclosures in minutes.CompR always delivers big KICKER bass. Vented for ultimate volume, the loaded enclosures are designed with drastically rounded corners and internal bracing for strength, additional support and cosmetic appeal.KICKER's newest MDF boxes are covered in plush, charcoal-gray carpeting, making for some of the sturdiest sub boxes money can buy. All are available in a 2-Ohm impedance.