Sub Box Modification....

transamtroy
10+ year member

Member
ok, i've got a dual 12, single chamber, 2 cubic ft. box, for my diamond audio CM3's, it hits harder then the 4 tens i used to have. I just want more SPL, so i was considering porting the box. i have a little over 1 cubic ft. closed off on the bottom to compensate the sealed application.

I was thinking about removing that and throwing in some ports i just dont really know where i should put them on the box and how long i should make them, or better yet how to figure out how long to make the ports.

Am i really going to gain more SPL from doing this? After the modification i would most likely have a 3 cub box w/ 2- 2" ports

i added two red dots on the pic to show where i think the ports should go. What do you guys think?

p.s. im hitting 148 right now, im looking to break 150. Also they are the subs in the far rear not the Image Dynamics. There blown //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

edit: i cant add the **** picture so anyone interested in giving advice reply with email and ill shoot the pic over. THANKS!!

 
Just build a slot ported box and or buy a prefab box for the subs. I can give you some specs on a box for those subs if you would like.

 
Thanks, but i got ahold of a guy from diamond finally and he pretty much just said that what i was planning was ok to do, i just hope that it makes it louder!

Heres the pic, it attached today.

 
hmm. how do those work do you buy a 4" flange and add the length you need with your own pipe? The only one that may work for me is 4" adjustable but i dont know if it would adjust to 13"?

 
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transamtroy

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