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Testing Deep Bass Panel Traps

Discussion in 'Studio Construction & Acoustics Forum' started by kkemp, Aug 25, 2003.

  1. kkemp

    kkemp Guest

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    Is there a simple test to verify that my deep bass panel traps that I built are working properly? I'm actually concerned they may not be sealed well enough.


    Kevin
     
  2. Ethan Winer

    Ethan Winer Member

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    Kevin,

    > Is there a simple test to verify that my deep bass panel traps that I built are working properly? <

    To test for air leaks, pound gently on the front panel while you pass your hand over all of the seams feeling for air spurting out. There's no easy way to actually test them for absorption. But if you built them correctly - no air leaks and the rigid fiberglass is not touching the front panel - you can play sine Waves and feel that the panel vibrates in sympathy. You might even be able to get a sense of their center frequency by feeling at which frequency the panels seem to vibrate the most.

    --Ethan
     
  3. kkemp

    kkemp Guest

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    That sounds easy enough. BTW, I did the sine wave test and the panels definitely vibrate to the sine Waves. I assume that's a good thing.
     
  4. Rod Gervais

    Rod Gervais Moderator

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    That's a vey good thing......... :tu:

    Rod
     
  5. Todzilla

    Todzilla Member

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    Kevin,

    How did you affix the front panels to the frame?

    Mine are almost ready for that stage; I've tightly glued the 2X2s to the 1X6s (couldn't use 1X4s 'cause I have 2" OC703) which I will silicon seal like crazy after they are affixed to the cinderblock wall. It's all airtight.

    Did you glue the faces on the frame? or use a generous bead of silicone caulk? Did you use screws or nails?

    I got a bunch of panelling nails which have bands around the shank to prevent pull-out.

    Thanks
     

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