BLACK 15" SINGLE PORTED EXTRA LARGE SUB BOX SPECIFICATIONS: -CUTOUT DIAMETER: 13 3/4" -TOTAL AIR VOLUME: 3.35 CUBIC FT. --TUNING FREQUENCY: 33-Hz -1 SLOT PORT (DIMENSIONS: H-14 3/4” W-2 3/4” L-24 1/2”) -WEIGHT: 52 LBS. -MOUNTING DEPTH: 13" DIMENSIONS: -HEIGHT: 16 1/2” -LENGTH: 32 1/4" -DEPTH: 17 3/4" CONSTRUCTION: -3/4” MDF WOOD -GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + NOT ALL SUBS WILL FIT DUE TO THE CUTOUT DIAMETER OR MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUBS