How much polyfill for a ~2.5 ft^2 ported box?

[js09 10+ year member]

Here is my box setup:

I did not factor in the displacement of the ports, because i'm assuming that this site gives you the port lengths with the displacement of them in mind.

How much polyfill do you guys suggest? I have 2lbs of it. One question though, when i just throw the stuff in, wont the fill get all in the sub and effect it? Hopefully when it rests at the bottom it wont get in the ports too.

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[js09 10+ year member]

Still need some guidance on this.....

 

[andytb 10+ year member]

i didnt thnk you normally put polyfill in a ported box

 

[blimblam 10+ year member]

he could put polyfill where he wants to! its his box! //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

its 1 pound per cu. ft.

 

[js09 10+ year member]

What about the polyfill thats gets all in the sub? Is that ok? I've searched and didn't find anything about it.

 

[js09 10+ year member]

just noticed i spelled displacement wrong lol

 

[EmEsDub 10+ year member]

just noticed i spelled displacement wrong lol

you also said the box was "2.5ft^2". it's actually "2.5ft^3" which is cubed--not squared. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

like andytb said, normally polyfill isn't necessary in a ported box. but if you must, you can staple pieces of polyfill to the sides of the walls if you're worried about it interfering with the sub.