1 NSv5-15 EZ (4.25cf 32Hz)DIY BOX PLAN FOR A NSv5-15 SUBWOOFERVOLUME: 4.25cf netTUNING: 32HzPORT AREA: 68in^2(16in per cube)DIMENSIONSWidth: 34-3/4inHeight: 19inDepth: 23-3/4in$15.00PriceAdd to CartBuy Now