ok so i got 2 12's and i wanna make my own box. mainly because i can and its a lot cheaper that way. but i really don't know wat i'm doin to be honest. i can build the box, sure, but how do i make it sound good? do i port? do i seal it up? do i seal it up then port it? also, how big to i need this to be in order to let the speakers breathe? i've made one in the past but it sounded like *** so i figure id get some advice this time around. thanks.

 

this will get you started: http://www.crutchfield.com/S-yeoOuJx..._building.html

 

What 12s do you have?

 

i just have some cheap *** sony 12's from walmart.... i don't expect them to sound amazing or rattle my car apart, but my original box made them sound like ****..... but the box i built was just kinda designed for the car, so i have no clue if the volume was even close. and it was enclosed on all sides except for the bottom, wasn't really sealed, and had car capet on it.... im just doin my research to make sure my next box is right.

 

http://www.bcae1.com/spboxnew2.htm

frst before youbuild the box find out what size box is recomended for your subwofer!
did the subwoofer come with a paper sheet for recomended box size?
if so USE IT!!!!!! and stick with that recommended info!!!!!!!

if your a newb.... click at the top of the page that says HOME PAGE and scroll down the right menu ITS GOT LOTS OF INFO! its that i learned from when i started....