Question PB-16 Ultra owner - foam plug dimensions

Discussion in 'Subwoofers' started by thinksat, Jul 11, 2019.

  1. thinksat

    thinksat
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    Hi, I recently purchased a second hand PB-16 Ultra. Unfortunately the previous owner could not find the port plugs and the shipping cost for replacements from the US is $77.00

    I am considering buying some precut foam in the UK but need to understand the dimensions of the OEM foam plugs to best try to match them for a snug fit.

    Any owners of a PB16 Ultra care to take measurements one of their plugs for me?

    Appreciate any responses in advance.

    Thanks
     
  2. shotokan101

    shotokan101
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    can you not just measure the diameter of the ports ? :confused:
     
  3. DodgeTheViper

    DodgeTheViper
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    They're 3.5"
     
  4. thinksat

    thinksat
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    Thanks, i did not know if they were slightly larger than the 3.5" port to ensure a snug fit as the foam is compressed.
     
  5. DodgeTheViper

    DodgeTheViper
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    If they’re cheap enough to get cut get a set of 3.5” and a set of say 3.75”/4.0”
     
  6. Ed Mullen

    Ed Mullen
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    The PB16-Ultra uses 3.5" diameter ports which accept a 4" diameter port blocker.
     
  7. SonOfSJ

    SonOfSJ
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