This build will not be a rushed one.. I want to take my time, cause I rushed my last build. I have learned alot of stuff from other forums, but from the little time I have been looking at the amazing builds here.. I know I will be busy soon getting this beast running before any audio goes in, but I have also been working on some ideas.. It's not for sure cause if I can get to it I have been in contact with Mike Singer to design me a 4thorder for 12 12's.. I probably will be using some Alpine type R's (older models swr-1242d) for awhile until funds allow me to go further.. Mike said that using the alpines would not be a bad thing cause they do so well in sealed enclosures.. From what I have seen here, you guys are the 4thorder experts..I would like any advice or ideas anyone has.. Any ideas as far as audio is welcome. I have not ruled out using, DC, SUNDOWN, or even SKAR AUDIO... Not sure what amps I will be using either.. any idea? Thanx Guys Jay This is the Big Beast That will be the victim of my torture.. This Is the outer frame I came up with to get the idea of the room i have to work with.. This will be behind the second seat.. I want it to still have the 5 seats.