The LANZAR OPTI6MI 6.5" 500W Car Mid bass Mid Range Speaker can handle 500 watts of MAX power, has a 4 ohm impedance, die cast aluminum frame, a 30oz magnet, and a mounting depth of 3.03 inches. Add the LANZAR OPTI6MI 6.5" 500W Car Mid bass Mid Range Speaker to your car audio system!1 buy = 4 speakers | Lanzar | | OPTI6MI 6.5" 2000W Car Mid bass Mid Range Audio Power Speakers | Black | Best Buy