Does it really mke a difference

[Varinabassing 10+ year member]

I have notice alot of guys no on here but in my area filling their sealed boxes wit something that looks like cotton What does that shit do and could i use cotton to do it if it works ?//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Click to read more...

 

[misfit138 5,000+ posts]

I've used polyfill a time or two in my day, but only in sealed enclosures. It's been said that polyfill will somewhat fool a sub into performing like it's in a bigger enclosure. Anytime I have serious confinement issues, I'll line the box with the stuff. I don't know for sure if it does a d*mn thing to be quite honest, but I've been guilty of doing it from time to time...

 

[Varinabassing 10+ year member]

Ok i wont do it til i listen to these subs a lil anyone got a cheap line out coverter they want to get rid of some how mine has gone missing and need it to finish this install

 

[Varinabassing 10+ year member]

bump

 

[93dakota 10+ year member]

to my understanding polyfill reduces back pressure making the sub feel like it is in a larger enclosure.