Box Question


Bronze Member
Username: Chada08

Post Number: 22
Registered: Jan-05
I have 2 12 in. MTX subs, their manual says each speaker should have 1.25 cubic feet of box space. The Q-Logic box i got free with the subs has 1 cubic foot x 2 (dual box). Will that .25 cubic feet im short on each sub make that much of a difference? thanks

Silver Member
Username: Wojopro

Post Number: 134
Registered: Nov-04
Yes... Considering you didnt factor how much space the sub is taking up also... SO your actually even less that that.

Bronze Member
Username: Chada08

Post Number: 23
Registered: Jan-05
So what kinda difference will it make? I'd like to be able to use the box i have for now and not spend more money...

Silver Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 316
Registered: Mar-04
that 1 cu ft box should be fine.

you could always add some polyfil to them. see what they sound like w/ out polyfil and if it doesnt sound quite right, add polyfil.

Silver Member
Username: Jeremyc

Kunsan AfbSouth Korea

Post Number: 447
Registered: Jun-04
First off,when manufactors give you the recomended volume they have all ready taken into consideration the speaker. So your only out .25.

Marshel on the other hand is correct. I cube should be fine. You can always add 1lb of polly fill per cube of enclosure space. That will make your box seem about 10% bigger to your speaker. So you would be at 1.10 instead of 1 cube.

Bronze Member
Username: Chada08

Post Number: 24
Registered: Jan-05
yeah i thought stan's suggestion was a little off. what is polly fill though?
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