Proper Polyfill Usage

[Vossy 10+ year member]

A few extra cubes usually doesn't hurt.

But staple the polyfill down if you can ;D

 

[CHEMMINS 10+ year member]

Correct. If you are at max recommended box size now, you do not need poly.

 

[CHEMMINS 10+ year member]

A few extra cubes usually doesn't hurt.But staple the polyfill down if you can ;D

Depends on the sub, and stapling it down compresses it in areas making the area where the staples are....useless.

 

[ciaonzo 5,000+ posts]

Not to thread jack, but if I have a sub that maxes out at about 2.5 cubes sealed and I'm at that, I wouldn't want any polyfil, correct?

If you model a driver in a sealed enclosure of the proper volume to provide .707 and look at the impedance curve, you will see that if you model a smaller enclosure but with fill added to arrive at the same Q of .707, the impedance is smoother in the smaller enclosure containing fill.

 

[ciaonzo 5,000+ posts]

A few extra cubes usually doesn't hurt.But staple the polyfill down if you can ;D

wut

 

[ejschultz 10+ year member]

Would it hurt the sub to have fill in the box if I'm already at the max recommended size? I'm at about 2.5 cubes right now and I'm getting a Type R 15". The mad recommended sealed size for that is 2.5 cubes. I had the box stuffed for my CVR; would you recommend taking it out for the Type R?

 

[helotaxi 5,000+ posts]

wut

Some people don't understand the difference between polyfil and batting and when to use each.

 

[Bob Saget]

Some people don't understand the difference between polyfil and batting and when to use each.

I had a 10'' Kicker L5 w/ the ported Kicker box back in high school.........it had the batting stapled all over the inside of it.

 

[GLN305 10+ year member]

Great read on Polyfil there, can't argue with real world testing.

Ultimate Polyfill Subwoofer Enclosure Resource - AudioJunkies

 

[Suicide Bobb 5,000+ posts]

Invert your sub and stuff the inside of the sub with polyfill for maximum deebeez

 

[subzero 5,000+ posts]

Alright Im venturing into my SQ build and Im a little concerned. This is my first polyfill use. Ill be using a 1.1 cube sealed enclosure before displacement. The displacement on my Evo TC2+ is .08 cubes. I have 1 pound of polyfill. Ive read that its supposed to be filled loosely and roughly 1 pound per cube up to 1.5 pounds per cube. Issue is I dont even have the whole bag in there yet and its already pretty stuffed so this leads me to my question.
What is the proper way to use Polyfill?

here is a website that has everything you need to know about polyfil

Sub Box Polyester Fiberfill