Felt on speaker baffle? (1 Viewer)

[Brandon B]

What is the correct felt for applying to the baffle arouind a tweeter to minimize reflections?

I'm looking in McMaster care at the SAE graded felt F-1 to F-26. THe F-1 is very hard and incompressible, the F-26 very compressible and softer, fluffier, but far less actual wool content.

The material descriptions indicate the lower F numbers have superior vibration damping properties, but that is not exactly the goal here, more minimal sound reflection.

What do you guys use?

BB

 

[Brandon B]

OK, found the answer to my own question.
Anyone with further comments/suggestions, please elucidate.
http://www.geocities.com/CapeCanaver...vs_blocks.html
BB

 

[ThomasW]

Branden

Use the highest wool content you can afford. Also get a thicker piece 5/8" then split it in two. It will just tear in to 2 almost equally thick sections. That way you'll have a harder finish (factory side) to put the glue on and a fluffier side to absorb.

Don't make a circular cutout for the tweeter make a square.

The piece can be cut much larger than the tweeter and actually extend down the baffle and butt up against the woofer

 

[Greg Monfort]

His plots prove what us oldtimers learned decades ago, real wool products works best for damping. That said, while I use it on the inside, I use polyfil to diffuse baffle reflections because it sounds best to me, though I haven't done any elaborate testing to show in what way it changes the sound.

GM