update! I finished the box and threw the 18s in and it didn't sound no different than my last one. maybe because its not braced yet? anyway, I ended up cutting another cut out and threw another 18 in. yeah 3 18s, get nasty! however my roof looks like a flimsy piece of sheet metal and that is causing major loss of db. I need to throw some serious deadener on it. also I need to get my box braced up. anyhow the box seems like it came out good, considering I came up with the design like in 5 minutes on torres. gets nasty low and painfully high, like my vision has never been so blurred from any system I owned. for the first time in a long time i feel that pain in the ears, on a very wide range of notes at that, love it it came out good. ill post videos soon