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Thread: Woofer Gaskets

  1. #1
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    Woofer Gaskets

    Guys, I ordered some of the cork gaskets from JBL as used in the 4430 for my 4 X 2235 LF project. It's been almost three months and they still aren't here.

    What do you use for your projects? I have some of the old vinyl o-rings but they are used and crushed, plus my baffle holes are not perfectly circular.

    I am using the MA-15 clamps so I don't need screw holes in the gaskets, any suggestions would be appreciated. I'd really like to get these woofers into a new home.

  2. #2
    Administrator Robh3606's Avatar
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    That's odd. I have gotten mine in a week or so. I use the black paper gaskets on all my drivers. I tack them on the driver with a dab of silicone in 4 places so they don't take a walk as you mount them. You could make your own. Try an auto store to see if they have gasket sheets large enough to handle the 15's.

    Rob

  3. #3
    Alex Lancaster
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    How about cardstock at stationary or arquitect supply stores?, they usualy come in all colors, 3' x 4', enough for about 4 gaskets or more, You could even cut segments and get a bunch of them; Me, I´m too lazy, I use silicone.

  4. #4
    RIP 2011 Zilch's Avatar
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    1/16" thick self-adhesive closed-cell neoprene foam weatherstripping, 1/2" - 3/4" width, available at ACE hardware and McMaster-Carr.

    I stick it to the cabinet, but you get only one chance to get it right.

  5. #5
    RIP 2014 Ken Pachkowsky's Avatar
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    Woofer Gaskets

    This is what I used on my Westlakes. It works great.
    FYI

    Attached is a photo of material I used to seal the drivers on the baffle. It works great. Can be had for 5 bucks for 18 feet at Home Depot.
    Attached Images

  6. #6
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    Thanks everybody. I'll check out my local Home Depot. I wonder why it takes so long to get JBL parts in Canada?

  7. #7
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    Well the answer is Because it's Canada, I get all my JBL from the USA

  8. #8
    Senior Member stevem's Avatar
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    Has anyone ever tried mounting a woofer so it is de-coupled from the enclosure? B&W used this approach with their 801s. I'd like to know if it makes an audible difference.

  9. #9
    RIP 2014 Ken Pachkowsky's Avatar
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    Is Gould Marketing still the distributor for JBL in Canada?

    Ken

  10. #10
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    Is Gould Marketing still the distributor for JBL in Canada?
    No Ken, they disappeared, more or less when the First Free Trade agreement was implemented ( before NAFTA ) .

    The Canadian distribution rights were rolled into one of Harmans other "distributors" ( SoundCraft . Still located in Montreal .

    In all fairness to them, to avoid the huge shipping fees, they only bring a pallet of stuff into Canada when a critical mass of orders is reached . "Gaskets" are unlikely to alter that threshold one way or another .


  11. #11
    RIP 2014 Ken Pachkowsky's Avatar
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    Hmm

    Not surprised I quess. Things never stay the same. Herb Goldstein and Linda Gould where great to work with. When I purchased my factory built 4350's they made special arrangements with JBL for custom enclosures.

    I recently ran across Ted Telesky who used to be the service manager at Advance Stereo in Winnipeg. I was shocked to find out he worked for JBL as a senior designer on the pro side for some years. He told me he worked very close with Westlake in those days. Its a small world.

    Ted was the host of a radio talk show I produced on CJUM called "Men Of Music" back in 76/77. For those of you who know him he is living here in southern California and is VP of a car audio manufacturing company who's name slips my mind. FYI "never believed a vehicle made the ideal listening environment" . That should stir things up!

    Oh well enough rambling...

    Ken

  12. #12
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    Well if it still or could be any help I know that JBL/Harmon goes thru "Erikson consumer" (not to sure if it's spelled right ) Well good luck with the gaskets
    JBL The Competition

  13. #13
    Senior Member pos's Avatar
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    Sorry to bump this old thread.

    I want to make cork gaskets using isolation cork sheets, ideally in one piece instead of four as in the MA-15 kit.

    I can buy sheets of 2mm or 4mm, rubberised or not.

    Are the gaskets that come with the MA-15 kit rubberised? How thick are they? Would a rubberised cork enable for a better sealing? The not rubberised cork looks already tight and fine-grained.

    thank you for your input

  14. #14
    Senior Member pos's Avatar
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    Is the cork gasket that comes with the MA15 kit rubberised?
    Is it 2mm thick (1/12 inch) or more?

    thank you

  15. #15
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