after i git my car done this is my next setup 2 12" orion h2s an 2 autotek mm2000 4cubes per sub turned @ 25hz 200amp alt. 2 batterys 2 runs of 0/1 wire 1 power an ground from starter battery 2 back battery an big 3 }
that and 4 cu.ft for a 12" is way too much.. and if you tuned that low.. you'd kill those subs buy making them exceed their mechanical limits constantly lol..
if your box is going to be that big stick to 15"s.. otherwise drop down3 cu.fit and run 2.50cu.ft per 12"
well heres where you messed up. most 12" subs arnt made to be ran in huge enclosures (IE 4cubes) they will easily reach there mechanical limits and you will destroy them fast.
also you tuned very low so your subs are gong to have terrible upper extention just so you know.
the reason some people have subs in big boxes is 1) to let the sub reach its full potential on less watts 2) for competition purposes 3) they dont know any better 4) who the hell is running 15 cubes + for 2 15s!!!!???
my box is in the car its a b1tch 2 git in an out its over 100 pounds its 16hx34wx31d so 2 12s =24 inches plus 6inches 4 both ports then another 2.25inches of 3/4mdf for the ends an middle an this box is in a 94 grand am custom fitted