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04prixgt04
07-08-2011, 05:55 PM
i have 2 subs they are cvr 12 2 ohm. the require a mininum of 1.75 sqft. the box they are in is
side to side : 2ft 8 in
top to bottom : 1ft 2.5 in
front to back : 1ft 5 in
port is 3in. wide

http://i455.photobucket.com/albums/qq271/ducatidrew/yep%20yep/IMAG0457.jpg
there is a pic.
if i want to add 2 more cvrs do i need 3.5 sqft per chamber since each 1 needs 1.75sqft or can i just cut two holes out on top of the box and be fine?

Buck
07-08-2011, 06:04 PM
You'd need a whole new enclosure. They will work better in more than 1.75 each.

RAM_Designs
07-08-2011, 06:07 PM
You'd need a whole new enclosure. They will work better in more than 1.75 each.

Agreed

04prixgt04
07-08-2011, 06:25 PM
what kind of program/calculator can i use to make a design for a ported box tuned at a certian hzt that will fit 4 12's .

GeekSquad
07-12-2011, 02:18 AM
I just built a box for 4 of the cvr 12s for my co-worker in a blazer. The port was 100 square inches 12.5 x 8 and was 34 inches long. The box was tuned to 30hz. It plays low and LOUD

---------- Post added at 01:18 AM ---------- Previous post was at 01:17 AM ----------

Go to ajdesigner.com for a free vented box calculator plus all the formulas to do it by hand.