The E-12 F subwoofer by DALI features a 12-inch woofer capable of moving plenty of air with power & precision. The cone is made from pure aluminium for maximum stiffness & a becoming exterior. Furthermore the heavy magnet system wields a massive 4-layer long-stroke voice coil. All in all the heavy-duty abilities of this motor system ensure that the woofer always follows the signal from the amplifier.