3 X-15 EZ (12.5cf 32Hz)DIY BLUEPRINT FOR 3 X-15 SUBWOOFERSVOLUME: 12.5cf netTUNING: 32HzPORT AREA: 201.19in^2(15.78in per cube)DIMENSIONSWidth: 48inHeight: 23-1/8inDepth: 35-1/2in$15.00PriceAdd to CartBuy Now