View Full Version : Modifying Tuning Frequencies?

08-11-2007, 06:02 AM
My box is tuned too high for me, I like more low end than it can produce. So, is there anyway I can make lower the tuning?

08-11-2007, 11:23 AM
Slot port? Dimensions of the port? Port area?

08-11-2007, 11:40 AM
Not too sure, but this is pretty much what it is.

http://cgi.ebay.com/DUAL-VENTED-12-PORTED-AUDIO-SUBWOOFER-SUB-SPEAKER-BOX_W0QQitemZ270151797700QQihZ017QQcategoryZ50566Q QssPageNameZWDVWQQrdZ1QQcmdZViewItem

08-11-2007, 12:15 PM
Well in order to know if it's possible, I need you to get the EXACT dimensions of the interior of the enclosure and every dimension of the port.

You're probably just going to need to build a new box.

08-11-2007, 10:46 PM
You could try to extend the port walls, "assuming" it's and L port extending both ways. You'll lose some box volume, but it would be a few $$$ worth of MDF and probably 30 minutes. Extend each wall 3-5", and use L brackets to attach to the existing wall and silicone the seams. That way you can remove it if it makes it worse and sell the box and build a good one...

08-11-2007, 10:52 PM
im not sure it it would work but stuffing with fiberfill would make the box seem bigger giving it a different tunning frequency... im not sure if it would be higher or lower tho

Death By Bass
08-11-2007, 11:19 PM
enclosure is tuned to 45Hz...

its really too small for 12inch subs anyway, but, to tune the enclosure down to 35Hz, you will need to extend the port by about 12inches along the back wall of the box....

edit: the port is about 2.5inchs wide, correct?

extend the port along the back of the box, but make is 1.25inches wide, and extend the port till its about 1.25inches from each end/side of the box...

if that doesn't make sense to you, thats not my problem.

08-12-2007, 04:48 AM
Yeah, it doesn't make since to me. I'll wait it out until I get some better wood clamps so I can just build a new box. ;)