Must Subwoofers be batted?

Discussion in 'Archived Threads 2001-2004' started by Travis G, Jan 30, 2002.

  1. Travis G

    Travis G Stunt Coordinator

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    Is there really a need to use batting in subwoofers? I have heard that batting reduces standing waves but is there a need when the wavelengths are much longer then the enclosures size?
     
  2. Patrick Sun

    Patrick Sun Studio Mogul

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    Most of it peace of mind. If you don't think you need, don't do it.
     
  3. Joe Tilley

    Joe Tilley Supporting Actor

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    Travis, Im buy no means an expert here but the main reason poly-fill is used in an enclouser is to help with standing waves in the box,from what I understand,also it will make the box act larger in vol due to the fact it slows the air movement in the enclouser.
    Someone please correct me if Im wrong but thats how Ive alaways understood it...[​IMG]
     
  4. ThomasW

    ThomasW Cinematographer

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    There are no standing waves in a sub because the wavelengths being produced are too long.

    But IMO damping is a good idea to absorb the higher frequencies not filtered out by the XO.

    Damping material has no impact on the 'speed' of the soundwaves in the enclosure
     

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