sub boxes & cotton balls...

[Brutus2600 10+ year member]

I have been told that filling your box with cotton balls helps your subs sound better. Is this a myth or does it have some truth to it?

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[mykeys 10+ year member]

Not cotton balls..Polyfil (pillow stuffing) It will help minimize standing waves and if the box is too small can change the resonant freq of a sub but only by a little bit. Polyfil will be a lot cheaper for the quantity of it.

Mike

 

[Phatillusion 5,000+ posts]

Not cotton balls

and definitely not moth balls either.

 

[Brutus2600 10+ year member]

resonent frequency? sorry, I'm new to this, but what does that mean? You also said if my box is to small...my box won't be to small //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif Also, where can I get polyfil? Home depot? Thanks!

 

[kingpin_jeffie 10+ year member]

ok resonant freq. is likewhat freq the sub resonates or vibrates at

and when you put polyfill in your box it makes it seem bigger to the sub because the sound waves are slowed down when they go through the polyfil making the box bigger than what it actually is.

you can get it from crutchfield but if you want to go the cheap route you can check out craft or fabric stores

other stores probably sell it too but i know of the craft stores for sure.

 

[Brutus2600 10+ year member]

so if my subs require 1.0 cubic ft of space, then I could get away with like a .90 cubic ft box stuffed with that stuff and it sound pretty much the same? I do have limited trunk space, but if it's going to change it to much I'll still keep the bigger box.

 

[mykeys 10+ year member]

Your box with or without polyfil should be within %10 of nominal parameters.. and you can get it at Walmart for like $5.

Mike

 

[4lowrodeo 10+ year member]

I used insilation? the same stuff used in walls. worked well for me...

 

[dr. no 10+ year member]

You can buy polyfill at wal-mart, in the craft section.

 

[dr. no 10+ year member]

oh, guess u already said that