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Thread: JBL 2425 has three hole & two hole mounts?

  1. #1
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    JBL 2425 has three hole & two hole mounts?

    I recently received a pre-owned pair of 2425 drivers that have both two-hole and three-hole mounts. In other words, they have a standard drilled and tapped 3-hole pattern and also a 2-hole pattern.

    At first inspection, I assumed the owner had drilled and tapped the two-hole pattern but the black crinkle paint from the factory seems to outline the two-hole pattern so, I assume, these came drilled and tapped for both type mounts from the factory.

    Is this correct?

  2. #2
    Senior Member jcrobso's Avatar
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    Could be so.

    There are some other brands of horns that use two mounting holes, Altec was one of them. John

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  4. #4
    RE: Member when? subwoof's Avatar
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    look under the cork

    Factory. Made sense to allow these to replace the competition..

    On the *first* generation 2425 ( painted gray with a straight snout ) there are recessed Allen bolts so you can remove the snout/throat...

    It's been 20 years since I had some of them here but I would BET that the resulting exit is 1.5"....

    Hmmm.......

  5. #5
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    Grump:
    Ok, so from the 2425 spec sheet, apparently, these came from the factory with both three hole and two-hole mounting pattern.

    I was kinda concerned since the two-whole pattern is very close to the edge of the magnet/motor and it does not look like a strong mount. From the gaskets on these drivers, however, I assume they were mounted in a two-way (e.g., Altec type) accustic lens/horn.

    Thanks...

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