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Thread: Speaker wadding on eBay

  1. #1
    Join Date: Apr 2012

    Location: N E Kent

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    I'm Geoff.

    Default Speaker wadding on eBay

    I've seen a possibly useful speaker damping material on eBay. Monacor 75% sheeps wool and 25% polyester mix sheets. Sheeps wool is a useful damping medium. I'm ordering some myself. Its eBay listing No. 3000715136687 from seller dappletoft.

  2. #2
    Join Date: Jun 2009

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    Geoff, I was recently looking around and saw this too. I made the mistake of buying cheaper and the material was hard to the touch and very inefficient. I decided to try 100% washed wool (also on ebay) and although I've only just started experimenting, I can say it's really efficient - a small quantity made a dramatic difference and I'll only need about 25% of the volume I expected. It's quite clumpy though and have to be sure to break it up; I dare say the Monacor stuff would be more uniform in it's effect.
    Steve & Valerie

    www.electricbeachaudio.com

    If you think you know the answer already, you're not really searching

    A plastic box, some glass bottles, two metal tins and some lengths of string

  3. #3
    Join Date: Apr 2012

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    Did you know that B&W did extensive research into various fibres years ago and concluded that long haired teezed pure wool was best for bass damping.

  4. #4
    Join Date: Jun 2009

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    Well, trying the washed wool directly was a mistake, too dense to allow enough air flow. I spent a bit of time teasing, seperating and fluffing up the wool and it's much better. It's still very efficient in that you don't need as much as synthetic damping and the end result is tonally much better.

    I pulled the wool apart by hand first to get it loosened up then used a pet grooming comb (cat/dog) and just kept working at it until I got a fuffy mass with 95% of the knots and tangles removed.

    Considering the cost difference of prepared material I'll stick with this in future. It's a bit of a faff but sonically worth it and not a terrible job as far as HiFi chores go - I'd rather be doing this then twisting and weaving bloody bits of wire


    Although... is that me or has a sheep crapped in here?.....
    Steve & Valerie

    www.electricbeachaudio.com

    If you think you know the answer already, you're not really searching

    A plastic box, some glass bottles, two metal tins and some lengths of string

  5. #5
    Join Date: Apr 2012

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    I'm Geoff.

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    The reason wool and presumably other animal hair works, is that at the microscopic level the individual hairs have rough surfaces which makes them abrade against each other under vibration thereby soaking up sound energy.

    Synthetic fibres are generally smooth and far less effective at absorbing energy, although any damping is better than none in most cases.

    Speaker parts specialists can supply loose ready teezed long fibre wool.

    One last little point, if you use ported cabinets it may be worth putting fine net across the back of the bass port to stop moths getting in. They eat wool!

  6. #6
    Join Date: Jun 2009

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    I'm Steve.

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    I'm grooming my long haired cats and I'm thinkin'....





    One kitten per cabinet should do it

    Steve & Valerie

    www.electricbeachaudio.com

    If you think you know the answer already, you're not really searching

    A plastic box, some glass bottles, two metal tins and some lengths of string

  7. #7
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    Alex_UK is offline Spotify + Facebook Moderator / Chilled-Out Wino and only here for the shilling
    Join Date: Aug 2009

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    I'm WrappingALilacCurtainAroundMyBobby.

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    That should get your system purring!
    Alex

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  8. #8
    Join Date: Jun 2009

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    Well it worked OK Alex, tempted them in with a handful of Dreamies. Took a bit of burning in with a few hours of Michael Bubble at a decent volume and the added high frequencies seem to have stopped now. Can't quite get used to that smell though
    Steve & Valerie

    www.electricbeachaudio.com

    If you think you know the answer already, you're not really searching

    A plastic box, some glass bottles, two metal tins and some lengths of string

  9. #9
    Join Date: Apr 2012

    Location: N E Kent

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    I'm Geoff.

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    The wadding in question seems rather good actually. I'm going to buy some more!

  10. #10
    Join Date: Jul 2010

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    Sorry to tell you but rockwool is better at damping than long hair sheeps wool

    I know simply because I have experimented with both. In a sealed box stuffed with either long haired wool or teased out rockwool, the lowest ultimate driver resonance occured with the rockwool.

    Thus the rockwool gave the best damping by fooling the driver into thinking it was in a bigger enclosure, or if you like, the best damping

    It's also cheap & even better, it's fireproof
    Bests, Mark



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