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  1. #1
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    Large format HF drivers

    OK, so I plan to build a pair of two-way systems that use 2225 and 2445 drivers (2-inch compression drivers).

    Are there any special considerations I need to ponder?

    I will run them in a 7sq ft box, and plan to passively cross these at 500hz.

  2. #2
    Senior Member grumpy's Avatar
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    Are there any special considerations I need to ponder?
    how large a horn you can tolerate...

  3. #3
    Administrator Robh3606's Avatar
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    Depending on the horn you may have a issue above 10K. Depends on what you are looking for. Why are you running 2225's in 7 cubic ft??

    Rob
    "I could be arguing in my spare time"

  4. #4
    jbl
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    Quote Originally Posted by Robh3606 View Post
    Depending on the horn you may have a issue above 10K. Depends on what you are looking for. Why are you running 2225's in 7 cubic ft??

    Rob
    Good point, Rob.
    The VAS of the 2225 is 6 ft3.

    Ron

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  6. #6
    Senior Member vernb's Avatar
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    Well. It is hard if you don't know what to search for. I have been looking for a long time for a two way system for the 2445 drivers - with out luck.

    I thank you for these valuable informations. My search is now over and I will start building my second DIY project.

    Thanks again
    Vernb

  7. #7
    Senior Member vernb's Avatar
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    But I am still in doubt, because some people here on LH say that you need to compensate the falling HF response of the compression drivers in the x-overs. They do that in S3100 I know, but on the JBL 4673 the x-over doesn't have any kind of compensation. It is just a straight 12db/oktav filter, as I see it.

    Is that because the 2445 2" drivers do not roll of in HF like the smaller 2426 1" drivers ??? Are they more linear in their response?

    Vernb

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