JBL Special 18 inch 2044G Woofer for Extended LF Output * Large Vent Area for Reduced Distortion * Tough "Duraflex" coated paint enclosure finish and Heavy Duty 16 gauge Perforated Grille * Low Profile and Compact Rugged workhorse sub * Top Mounted 35mm Pole Mount socket for JBL"s SS3-BK Pole