Subwoofer enclosure plans

[Nerfdude]

well, i'm looking to put a pair of subs in my hatch, as a pair of 4x6's and a pair of 5.25's just doesn't provide enough punch. but, i'm looking to go the route of the cheap bastard- yep, i'm gonna build my own box. i built a sealed box for my last car, but this time i want to build a bandpass box with a plexiglass window and all... i've got a couple sheets of 1/2" plywood sitting around, and the tools needed to do it. but, i need some good bandpass box plans. anybody have bandpass plans for a pair of 12's?
the car came with a Rockford sub wire kit installed, so i'm good there. i'm gonna shop aorund for subs and an amp... just don't want to spend 200+ bucks for something i can build.

ALSO... does anyone know how to bypass those little crap amps for the front speakers in the doors?

[PabloHoney]

First of all, if you are making a box, don't use plywood.  Go buy some 3/4" MDF.  It's heavier, but it makes for a much nicer sound, and will also make your sub hit a little harder.  Go with a sealed box also, it will give you much better SQ.

I have an s14 and to bypass the amps, I just wired my four-channel amp up, and tapped into the factory harness at the factory amps.  Of course, you should unplug the harness from the factory amps =)  Much easier, and when you want to sell the car, it's easy as shit to just unplug your stuff, and plug in the old stuff.

[aqwkmf]

im thinking of making a selling custom stuff like mine but heres and idea if u want to make ur own.
pic:
http://forums.northwestnissans.com/attachment.php?s=&postid=24110
the jls are photoshoped

[Nerfdude]

wouldn't putting subs in that deck rattle like a bitch, though? i guess if it was properly secured it'd be ok, but...