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Thread: Large format alnico driver.

  1. #1
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    Large format alnico driver.

    Hi Can anyone explain in detail how a large format JBL driver such as the 2440-2441 is disassembled??? I have a cut-away picture of one and figure they are press-fitted and then regaused, but would like to know the procedure used to break it down to the parts that make up the driver.
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    Administrator Mr. Widget's Avatar
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    They are held together by the sheer power of the alnico magnet. They are not user serviceable, other than replacing a diaphragm.

    Widget

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    So if i was to deguass the drivers would they fall apart??? Is the top plate not a press-fit?
    I should mention i picked up a pair of 2440,s plus a ti.dia. in Tulsa the other day for $20.00 US. ,they have broken throats and a little bit of corrosion,and i thought if i could take them apart and clean up the castings and then maybe drop them off at orange county they could re-assemble them. At the price i paid i got nothing to lose,in fact maybe i could get them sliced in half for display,hey Don if i go this route i will give you a slice Any one else want a slice?

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    "Hi Can anyone explain in detail how a large format JBL driver such as the 2440-2441 is disassembled???
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    RIP 2010 scott fitlin's Avatar
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    Question?

    Quote Originally Posted by Giskard
    "Hi Can anyone explain in detail how a large format JBL driver such as the 2440-2441 is disassembled???
    How would you handle a neodymium driver?
    scottyj

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    The word neodymium scares me.
    In fact, it sounds downright spooky!
    I would wear this and use a long screwdriver so I could keep my distance...
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    ALL-RIGHTY THEN Not to be confused with any thing to do with the republican party

    Hi Ok I am in luck,I have the sledge but I need to know where to give it the critical first WHACK!!!

  8. #8
    Super Moderator Hofmannhp's Avatar
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    two slices

    Quote Originally Posted by John
    ...... Any one else want a slice?
    Hi John,

    may I get two .....please ...before you slice them

    HP
    Please help us save more info about the vintage systems. Let us register your speakers and drivers.

  9. #9
    RIP 2010 scott fitlin's Avatar
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    You must be thinking of.....

    Quote Originally Posted by Giskard
    The word neodymium scares me.
    In fact, it sounds downright spooky!
    I would wear this and use a long screwdriver so I could keep my distance...
    You mean beryllium! Thats the bad for you, but good sounding stuff!

    scottyj

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    Quote Originally Posted by scott fitlin
    You mean beryllium! Thats the bad for you, but good sounding stuff!

    Anything ending in ium scares me bad.
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    Sorry for hijacking your thread John.

    I should be spanked.

  12. #12
    Administrator Mr. Widget's Avatar
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    Oh Boy, Giskard has really lost it this time...


    Widget

  13. #13
    RIP 2010 scott fitlin's Avatar
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    Cedar Point!

    Quote Originally Posted by Giskard
    Anything ending in ium scares me bad.
    I rode the Millenium Force! Its great! FASSSSSTT! Straight down, baby!

    But this year, NJ got it goin on! Kingda Ka! http://www.sixflags.com/parks/greatadventure/index.asp

    128mph launch, 456ft tall!

    scottyj

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    Hi Yes maybe you do,but i am not into that sort of thing.

  15. #15
    RIP 2010 scott fitlin's Avatar
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    This is lansing heritage!

    Quote Originally Posted by Giskard
    Sorry for hijacking your thread John.

    I should be spanked.
    I believe you are looking for the Hellfire club! They do spankings! We do woofing!

    scottyj

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