View Full Version : Best way to raise tuning of an already built box

03-08-2008, 02:00 AM
I built a crx style box for 2 15' bls..Box is 7^3 @ 29hz...I personally don't like the way it sounds and want to raise the tuning to about 35hz...How do I go about doing this?

matrxx dude
03-08-2008, 02:01 AM
shortin the port length

03-08-2008, 01:53 PM
I always thought it was to make the port longer

03-08-2008, 01:54 PM
wat about polyfill?

03-08-2008, 02:44 PM
Add panels inside the box to make the internal volume smaller.

03-08-2008, 03:01 PM
i usually use some wide cut 45's in the corners to drop volume and get rid of the 90's

03-08-2008, 03:03 PM
wat about polyfill?
i know that will slow the air movement down to make the box seem bigger not sure how much. recomended 1 bag of polyfill for 1 cu/ft. not sure bout tunage abllity of it. works great in small space enclosure.

03-08-2008, 03:16 PM
the best wa is to shrink the internal volume with some MDF
pannels or fill the corners with 45* like mentioned above