Wow, what a surprise. Dont go there. For anything. One of thier "top" guys Scott built a box to, his words "kicker specifications". For my old setup before i knew anything about subs at all. Turns out the box was .85ft^3 ported to 55hz for daily. Needless to say the sub didnt last very long. He also pawned off some shitty old kicker 6.5's on me. What a waste of $700. Then after I researched and taught myself enough to buy some decent equipment and build my own ported box he tried to sell me speaker box carpet for $12 a yard. I went to Wal-Mart and got thin grey fleece for $2 a yard that looks just as good.