BLACK 8" TRIPLE SEALED SUB BOX SPECIFICATIONS: -CUTOUT DIAMETER: 7 1/8" -TOTAL AIR VOLUME: 1.32 CUBIC FT. -3 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.44 CUBIC FT. -WEIGHT: 26 LBS. -MOUNTING DEPTH: 10" DIMENSIONS: -HEIGHT: 9 1/4" -LENGTH: 33 1/4" -DEPTH: 11" CONSTRUCTION: -5/8" MDF WOOD -GLUE -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