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Foam Insulation

J

jeff105

Active Member
OK you speaker gurus, when replacing the rotted foam material inside a speaker cabinet, is there an advantage of replacing with foam material or is fiberglass insulation just as good.

I was given a pair of Powered Advents that didn't work but I have them up and singing now.:yes:

Someone had been inside these already and left a few crumbs of the original foam left inside the cabinet.

I can probably get some insulation for free but I wouldn't mind buying acoustical foam if it is actually better.


Thanks for any suggestions :thmbsp:
 
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Celt said:
AcoustaStuf, available at Parts Express and Madisound. Better than fiberglass or foam and IS different from plain fiberfill.
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Has anybody tested to determine what the proportions should be when replacing fiberglass or foam? It's highly unlikely that a 1:1 substitution of one material for another will ever produce the correct results.
 
Some later versioins of the New Large Advent had 5 blocks of foam. They were about 3 inches thick and about 1 foot square.

What you need to get, if you really must have foam, is open cell foam sold a fabric stores. Stuff the box neatly - not too much and it should work fine.

However, FG has been found after much research to be the best because of it fine fiber diameter. Polyester fiberfil is a good second choice if you don't want to mess with FG.
 
spkrdtr said:
Some later versioins of the New Large Advent had 5 blocks of foam. They were about 3 inches thick and about 1 foot square.

What you need to get, if you really must have foam, is open cell foam sold a fabric stores. Stuff the box neatly - not too much and it should work fine.

However, FG has been found after much research to be the best because of it fine fiber diameter. Polyester fiberfil is a good second choice if you don't want to mess with FG.
Click to expand...

It's funny you should mention that.
I just went into a home store earlier today and looked at the open cell foam stuff they had.

Maybe a little paranoid here but I was actually wondering if this or any stuffing material would be safe.

The amps/electronics of the Powered Advents are mounted on the inside of the back panel. Possible fire hazard ??

I wish I had been able to see just how Advent originally had the foam placed.

Thank you :thmbsp:
 
Go with the fiberglass suggestion. The correct amount, as quoted by SpruceMoose, will impact your bass response in a positive way.
 
justw said:
Go with the fiberglass suggestion. The correct amount, as quoted by SpruceMoose, will impact your bass response in a positive way.
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Since I can get the fiberglass for next to nothing, from a friend, I think I will give it a shot.

Thanks Everybody:thmbsp:
 
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