2 XLR-15 EZ (6cf 43Hz)DIY BLUEPRINT - 2 MASSIVE HIPPO XLR-15 SUBWOOFERSVOLUME: 6cf netTUNING: 43HzPORT AREA: 80in^2(13.33in per cube)DIMENSIONSWidth: 48inHeight: 19inDepth: 19in$15.00PriceAdd to CartBuy Now