Foam behind speakers in doors..

[kingsxman 10+ year member]

Can you use that spongy shipping foam that comes with electronic devices (pink stuff) in the doors? I have not seen teh expensive cell foam..so I dont know how close this is. Supposedly you just want to stop the back wave...

'I've got a bunch of that foam from the boxes of some network cards that I just installed. Just wondering how close it is to the expensive cell foam.

Also, how many people use it in general? I put some cheap walmart seat cushion foam behind one speaker and it sounded TERRIBLE. Much better when I moved foam over to side of door and used it to more or less make the area behind the speaker in the door smaller.

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[JimJ 5,000+ posts]

Unless you're certain it's closed cell foam, I wouldn't put it behind the speakers.

Using open cell foam will trap moisture and eventually lead to a quick rusting of your door panels.

 

[tRiGgEr 5,000+ posts]

And it will start to smell bad.

I would not recommend it.

 

[ramos 5,000+ posts]

Well give it the soak test. Stick it in some water. If it absorbs the water it's not what your after . //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[kingsxman 10+ year member]

Excellent!! I had no idea what the difference in closed cell and open cell foam was.

I guess the real question is does one sound any different over the other?