QPower QBOMB12V Dual 12 Vented Ported Subwoofer Sub Box w/ Bedliner Spray

Dimensions: 32 x 14 x 13.25 inches Cutout diameter: 11 inches Air space (per sub): 1.5 cubic feet MDF construction: 0.75 inch Durable black bed liner spray finish Spring loaded terminals Dual vented chamber design Middle slot port Size: 12 inch Tuning frequency: 40 hZ Dimensions: 32 x 14 x 13.25 inches Slot port dimensions: 12.625 x 2.25 inches Manufacturer warranty: 2-year warranty