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Subwoofer wadding. Good or bad?

glen_jai Jan 22, 2009

  1. glen_jai

    glen_jai Member

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    I am about to fit a sub to a custom made enclosure, and was wondering what people's thoughts are on fitting acoustic wadding material to the insides of the box?

    I heard that putting wadding in has the affect of making the box appear larger to the speaker. But at the same time can weaken the "punch" of the speaker.

    I have an Alpine Type R 10" sub, which has a recommended sealed enclosure volume of between 0.5 - 0.8 cu ft.

    My custom enclosure is sealed, with a volume of 0.6 cu ft.

    Comments/advice welcome.

    Cheers,
    Glen
     
  2. dunk

    dunk Member

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    with a sealed box, wadding does increase the effective box size, and in turn this increases the damping (lowered system q) which is generally a good thing with boxes at the smaller end of the recommended size - lower q makes it more punchy but slightly quieter but only a few db - dont pack in too much, just loosely fill about 2/3 of the box
     
  3. glen_jai

    glen_jai Member

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    Great, thanks for advice Dunk. By loosely, I take it you mean, without sticking it to any sides of the box?

    Cheers,
    Glen
     
  4. dualmono21

    dualmono21 Well-Known Member VCDS Map User

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    ideally you want some material on every panel to try and dampen some of the reflections from the backwave
    a nice coating around an inch thick all the way round the box is sufficient
    too much will have a negative effect on the speaker and enclosure
     

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