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Thread: L 300 crossover

  1. #1
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    L 300 crossover

    What is the correct method for removing the crossover chassis from its metal case without messing up anything in the process ?

  2. #2
    Senior Member macaroonie's Avatar
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    The big components are ' potted ' in a material not unlike hot wax glue ( sticks ).
    You have to use heat to get it all out , I have found that a woodburning stove at a gentle heat will get it melted in about half an hour , just pop it on top and keep an eye on it. Keep any of the external cables away from direct heat.
    A heat gun would do the job also , just play it on the bottom and sides of the canister.
    Once it is all melted you can just pour it out into a plastic container.
    The components will be coated of course , it's all a bit messy.

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    L300 crossover disassembly

    Thanks. I thought that goop was the issue, they use it in the L 26 which I have recapped. Will go the heatgun route as my woodburning stove is in the log home I no longer own. Enjoy your stove and that malt beverage that is made so well there.

  4. #4
    Heather [Senorita member] hjames's Avatar
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    Quote Originally Posted by Bluegrassmaven View Post
    Thanks. I thought that goop was the issue, they use it in the L 26 which I have recapped. Will go the heatgun route as my woodburning stove is in the log home I no longer own. Enjoy your stove and that malt beverage that is made so well there.
    Last time I melted down a wax-filled early JBL crossover,
    I put it in a pot of water on the stove and brought the burner heat up until the wax went clear and melted ...

    Common item any home should own ...
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  5. #5
    Senior Member audiomagnate's Avatar
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    Quote Originally Posted by hjames View Post
    Last time I melted down a wax-filled early JBL crossover,
    I put it in a pot of water on the stove and brought the burner heat up until the wax went clear and melted ...

    Common item any home should own ...
    The old "bain marie." The wax prevents the electrolytics from oxidizing/drying out, so they shouldn't need to be replaced. Those beasts were built to last. Except for the foam of course.

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