Euphoria By DB Drive EWX EWXPW12D4 Single Subwoofer The engineers at DB Drive have designed this subwoofer from the ground up to shake the ground up. The double stitched foam surround along with the die-cast aluminum vented basket allow for maximum excursion while the protective magnet cover gives the woofer a rugged yet stylish appearance. 3″ High-temperature voice coil 145 oz. ceramic ferrite magnet High-grade Low Carbon steel on top and bottom plate Designed to optimize SPL performance High excursion spider designed 1.5″ high roll foam surround Large gauge push button speaker terminals Dual 4 ohm voice coils