Speaker damping with Roxul Mineral Wool advice needed

[thevinoman]

I am currently replacing my tweeters and crossovers with new Bob Crites units (entire new crossovers), in my excellent condition Klipsch  KG 5.5's.  (see link for specs and dimensions)    I have recently acquired several batts of Roxul Mineral Wool sound damping insulation. It is 3 inches thick, and very easy to work with and cut. Upon opening the speakers, there were a couple of sheets of cheap looking foam inside. My plan was to remove this foam, and then line the inside of the cabinet (top, back and sides) with the Roxul. I was thinking of only extending the batting down about 21 inches from the top, so as to not interfere with the bottom area around the bass port. I think I could cut the thickness down by about half if needed. Do you have any recommendations for or against doing this at all, and any advice you might proffer? Thanks very much. Look forward to your reply. Jim

www.klipsch.com/kg-5-5/details

www.roxul.com/products/residential/roxul+safe'n'sound

[cwmcobra]

I'd ask Bob's opinion. I'm sure he has one to share!

Cheers!

Chuck

[jlafrenz]

I've never seen anyone use this inside a speaker, but that doesn't mean it can't be done. Typically speakers use the foam similar to what you currently have. You can buy replacement foam from Parts Express or GR Research that is designed for what you are trying to accomplish.

[thevinoman]

Woo Hoo!  Maybe I'll be a pioneer in this new methodology...lol....Trying to gather opinions and advice from a number of very knowledgeable resources, so I'll let you all know what I find out. 

[cawgijoe]

I have seen people use fiberglass insulation like you would use in your attic in speakers and that also works well. I don't see why the Roxul would not work.