4 SA-10 PRO (5cf 35Hz)DIY BLUEPRINT FOR 4 SA-10 SUBWOOFERSVOLUME: 5cf netTUNING: 35HzPORT AREA: 77in^2(15.4in per cube)DIMENSIONSWidth: 48inHeight: 14inDepth: 26-7/8in$25.00PriceAdd to CartBuy Now