Posted by JBasham (A) on November 08, 2005 at 07:38:59

I'm building the subwoofer cabinets out of 3/4" MDF and I had a couple of questions.

Other sealed sub kits I've built involved lining the walls or stuffing the box loosely with sound-absorbing materials. Do I need to do the same thing for these?

Since I'm using 3/4" MDF, I'm installing cross-braces. Is it okay for these to be within a few inches of the rear of the driver, or do they need to be placed further back?

Thanks

• Re: Interior of sub cabinets - Robert Bastani 12:53:24 11/08/05 (4)
  In Reply to: Interior of sub cabinets posted by JBasham on November 8, 2005 at 07:38:59:

  Hello,

  there is no need for absorbing material inside the woofer- cabinets.
  To stiffen the cabinet- structure is helpful to reduce resonances, also cross- braces near the driver doesn`t affect the sound. Best method to stiffen the woofer- cabinet is to divide the big resonating surfaces into smaller areas, this results resonances at higher frequencies above the frequency- range in which the woofers are used.

  Regards
  Robert Bastani
  

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  • Robert...to speed up the process of building the subs.. - Bas Horneman 15:13:48 11/08/05 (3)
    In Reply to: Re: Interior of sub cabinets posted by Robert Bastani on November 8, 2005 at 12:53:24:

    how would using nails affect sound? I would ofcourse also use glue. But I find glue-ing with just clamps..so clumsy..and I was thinking of using a few nails here and there?
    To infinity and beyond!!!
    
    

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    • Re: Robert...to speed up the process of building the subs.. - Robert Bastani 03:55:17 11/09/05 (2)
      In Reply to: Robert...to speed up the process of building the subs.. posted by Bas Horneman on November 8, 2005 at 15:13:48:

      Hi Bas,

      using screws and glue is a quick method to get the woofer- cabinets built without clamps but you need many screws to pressure the platters together without warps. You always need glue to get the cabinets sealed, the screw- method is only for avoiding clamps.

      Regards
      Robert Bastani
      

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      • Thanks...are there any drawbacks soundwize? - Bas Horneman 06:34:07 11/09/05 (1)
        In Reply to: Re: Robert...to speed up the process of building the subs.. posted by Robert Bastani on November 9, 2005 at 03:55:17:

        regards,
        Bas
        To infinity and beyond!!!
        
        

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        • No - Robert Bastani 11:43:39 11/09/05 (0)
          In Reply to: Thanks...are there any drawbacks soundwize? posted by Bas Horneman on November 9, 2005 at 06:34:07:

          NTXT
          

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