Diffraction be gone (cheaper)

Ricardo
Ricardo Posts: 10,636
edited January 2012 in The Clubhouse
I've been interested in the effect of using this, but every time I look at the $60ish for a couple of pieces of felt I just think it's too much.

So I used the wonderful internet and found this:

http://www.durofelt.com/image_26.html

I bought a 12x24 piece of 1/4" wool felt for $17, shipping included.

Just in case anyone else has been wanting to try it but didn't want to pay too much.
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Post edited by Ricardo on
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  • Toolfan66
    Toolfan66 Posts: 17,349
    edited October 2010
    For the tweeters????
    Polk Audio SDA 2.3tl Fully Hot Rodded. 😎

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  • Ricardo
    Ricardo Posts: 10,636
    edited October 2010
    Yes.
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  • ShinAce
    ShinAce Posts: 1,194
    edited October 2010
    And it's 100% real wool! Rock on.
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  • reeltrouble1
    reeltrouble1 Posts: 9,312
    edited October 2010
    cool, I never want to pay much......so no paypal.;) can you send me a sample???

    RT1
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  • Ricardo
    Ricardo Posts: 10,636
    edited October 2010
    reeltrouble1 wrote: »
    can you send me a sample???

    RT1
    Ted, I will have some leftover, so yes, if you have a use for it I can send you a sample.
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    ***\\\\\........................... My Audio Journey ............................./////***

    2008 & 2010 Football Pool WINNER
    SOPA
    Thank God for different opinions. Imagine the world if we all wanted the same woman
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  • reeltrouble1
    reeltrouble1 Posts: 9,312
    edited October 2010
    cool beans, since your feeling generous.......can you recommend a Landscaper.....I guess they missed that customs charge????? not sure what that might be for you!!!!!!!

    hehehehehehe, ok, well, I will hit you backstage.

    Thanks.

    RT1
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  • vmaxer
    vmaxer Posts: 5,117
    edited October 2010
    Ricardo wrote: »
    I've been interested in the effect of using this, but every time I look at the $60ish for a couple of pieces of felt I just think it's too much.

    So I used the wonderful internet and found this:

    http://www.durofelt.com/image_26.html

    I bought a 12x24 piece of 1/4" wool felt for $17, shipping included.

    Just in case anyone else has been wanting to try it but didn't want to pay too much.

    Please let us know how it works. Thanks
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  • VR3
    VR3 Posts: 28,803
    edited October 2010
    My understand cutting this stuff is almost impossible - hence the cost of diffraction be gone...

    Looks like they CNC it....

    But 17 is definitely cheaper.
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • reeltrouble1
    reeltrouble1 Posts: 9,312
    edited October 2010
    why would wool be hard to cut, time was wool was used for all sort of things in all kinds of shapes and sizes??

    RT1
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  • VR3
    VR3 Posts: 28,803
    edited October 2010
    I dont think anyone on this forum can cut a 1.5" circle in that thick material the way they do.... nor cut the lines as straight as they do.

    The wool they use for those pads is DENSE, very thick and not easy to tear or cut in the least bit...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Ricardo
    Ricardo Posts: 10,636
    edited October 2010
    I honestly never thought it would be difficult to cut. I got the medium density, so we'll see when it gets here. Lots of tools around here.
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    ***\\\\\........................... My Audio Journey ............................./////***

    2008 & 2010 Football Pool WINNER
    SOPA
    Thank God for different opinions. Imagine the world if we all wanted the same woman
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  • reeltrouble1
    reeltrouble1 Posts: 9,312
    edited October 2010
    its a 1/4 inch, seems like you could stamp it for a circle or clamp and cut......Ricardo will figure it out at least I think he will.

    RT1
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  • hoosier21
    hoosier21 Posts: 4,413
    edited October 2010
    tool 1 1/2 hole wool

    I know there is a joke in there somewhere
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  • Ern Dog
    Ern Dog Posts: 2,237
    edited October 2010
    Interesting stuff. Let us know how the tweak sounds. I might try some too.
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  • Ricardo
    Ricardo Posts: 10,636
    edited October 2010
    Got it today; that was fast shipping!!!!

    It will be some time before I get to install this, but I'll post my impressions!
    _________________________________________________
    ***\\\\\........................... My Audio Journey ............................./////***

    2008 & 2010 Football Pool WINNER
    SOPA
    Thank God for different opinions. Imagine the world if we all wanted the same woman
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  • reeltrouble1
    reeltrouble1 Posts: 9,312
    edited October 2010
    get crackin..........

    anyway, looking forward to it.

    RT1
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  • cnh
    cnh Posts: 13,284
    edited October 2010
    I'm also interesting in hearing how this works out. I've seen and, actually, own, some bookshelves that use a 5" foam diffraction wafer that has a 1+ inch cut out for the tweeter in the center.

    I'm also curious as to 'why' wool would be a first choice?

    cnh
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  • Toxis
    Toxis Posts: 5,116
    edited October 2010
    Without doing too much looking around, I didn't see much so what is the use of this?
    Never kick a fresh **** on a hot day.

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  • Ricardo
    Ricardo Posts: 10,636
    edited October 2010
    http://diffractionbegone.com/
    _________________________________________________
    ***\\\\\........................... My Audio Journey ............................./////***

    2008 & 2010 Football Pool WINNER
    SOPA
    Thank God for different opinions. Imagine the world if we all wanted the same woman
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  • Fongolio
    Fongolio Posts: 3,516
    edited October 2010
    Geoff727 in Seattle applied some anti-diffraction material to the SDA-1C's I purchased from him last year. Looks to be a kind of felt. He did a great job of cutting and shaping it to the two tweeters per side. I'll see if I can find some pics of it he took.

    Here's a link to the thread he posted when he was selling them. I'm not sure of what exact material he used, but there are pics of them.

    http://www.polkaudio.com/forums/showthread.php?t=79106&highlight=Geoff727
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  • strider
    strider Posts: 2,568
    edited October 2010
    That stuff's also supposed to be useful for lining the interior of the cabinets, much like you'd use polyester sheet batting. Good price compared to what I found when I was building my last set of speakers.
    Wristwatch--->Crisco
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  • Ern Dog
    Ern Dog Posts: 2,237
    edited January 2012
    Ricardo- What's the word on this? I know this thread is 15 months old and you don't have the speakers anymore, but I'm interested in your impression about if the tweak improved anything or not. Seeing Trey's speakers in the flea market got me thinking about this.
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