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Thread: O ring gaskets missing

  1. #1
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    O ring gaskets missing

    Hi,

    today I received a pair of used and reconed 2225H's to build two subwoofers. Unfortunately the O ring gaskets are missing, and without them I can't front mount them. How can I replace these gaskets?

    Best regards!

  2. #2
    Senior Member richluvsound's Avatar
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    Tape

    Neoprene adhesive tape

  3. #3
    Senior Member 1audiohack's Avatar
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    O Rings

    Hello;

    The O Rings are hollow tubes that are melted or bonded end to end to form a ring. This material is available for gasket making as is solid round.

    Solid round O rings are not sufficiently compliant for mounting speakers in wood.

    I will cross section measure one for you if it will help you find some suitable material.

    Barry.
    If we knew what the hell we were doing, we wouldn't call it research would we.

  4. #4
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    Fine, Barry! Thanks in advance !

    Best regards!

  5. #5
    Administrator Robh3606's Avatar
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    You could also use a paper gaskets as well

    Rob
    "I could be arguing in my spare time"

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    Yes, but I think it's rather difficult to make .

    Best regards!

  7. #7
    Senior Member 1audiohack's Avatar
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    The tube I have from JBL kits measures:
    2.75mm outer diameter.
    1.25mm inside diameter.

    It is easily melted or bonded together with instant adhesive. Melted is stronger and remains flexible. Use a hot surface rather than flame.

    Barry.
    If we knew what the hell we were doing, we wouldn't call it research would we.

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    Thanks, I'll have a look ! The circumference can be calculated by the cutout diameter from the datasheets multiplied by Pi, I think?

    Best regards!

  9. #9
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    Gasket 34499 remains a service part from JBL. If you have a local JBL parts importer, they should be able to source it for you. They are not that pricey.

  10. #10
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    Thanks also to you! I just contacted the German importer, hoping to get an answer soon.

    Best regards!

  11. #11
    Administrator Robh3606's Avatar
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    Yes, but I think it's rather difficult to make .
    No you can purchase them JBL makes paper gaskets for 8-18" drivers that you used to be able to purchase. Any re-coning shop should also have them.

    Rob
    "I could be arguing in my spare time"

  12. #12
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    Ok, so the gasket 34499 appears to be unavailable here in Germany. I'll go and ask for paper gaskets. Or I'll search for foam coards that I could glue to form O rings.

    Best regards!

  13. #13
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    Thin weatherseal foam tape works just fine too.

  14. #14
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    As it has to be applied in a conical shape, will it stick sufficiently? But soon I'll try by myself . Today I've fetched the enclosure panels, and after our vacancies, i.e. in about four weeks, I'll build the subwoofers.

    Best regards!

  15. #15
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    Quote Originally Posted by Kay Pirinha View Post
    As it has to be applied in a conical shape, will it stick sufficiently? But soon I'll try by myself . Today I've fetched the enclosure panels, and after our vacancies, i.e. in about four weeks, I'll build the subwoofers.

    Best regards!

    Sorry, conical? It should be a flat ring shape?

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