View Full Version : What affect does an oversized box have?

12-18-2006, 06:17 PM
I have a sealed enclosure I got from a buddy that I'm going to use for my 12"s. The thing is, each chamber has about 1.2cubes when the subs recommended sealed volume is 1cube. Will this be a big deal? The enclosure also has all sides lined with 1" of poly fill. The manufacturer recommends this in the manual, but I'm thinking since the box is a little large to begin with I might want to take it out? But I've also read that the poly fill makes a more natural bass sound, and that seems kind of appealing to me. Let me know your thoughts on this, thanks!

12-18-2006, 06:19 PM
I doubt you will notice a difference.

If it is too big it begins to act like an IB subwoofer.

12-18-2006, 06:19 PM
naw for sealed box, little deviation will have little to no affect on sound.

12-18-2006, 06:20 PM
After your sub displacement, that 1.2 will be **** near 1.0ft^3. Leave the polyfill, it wont hurt it. Typically oversized sealed boxes extend the lower end and increase the effiecency (sp?) so you dont have to use as much power...

12-18-2006, 11:16 PM
Awesome thanks alot guys.

PV Audio
12-18-2006, 11:44 PM
Yes, but as said before, if you make it TOO large, then the speaker will behave like it's in an infinite baffle install.