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Thread: 250 Ti clone project

  1. #1
    Senior Member Woody Banks's Avatar
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    250 Ti clone project

    I just completed a trade with a good friend for a pair of L250's. Included in the swap were the upgrade kits to convert to 250Ti's. Instead of converting the L250's I have decided to leave them intact and build clone cabinets for the 250Ti. In my quest for the necessary woofers to complete the component list I found a complete set of 250Ti BM's in need of cabinets. A month later,I was also able to pick up a set of LE14H-3's. So instead of building a single pair of clones, I will be attempting to build two pair this winter. I will try to remember to take a few photos of the process.

  2. #2
    Senior Member BMWCCA's Avatar
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    Quote Originally Posted by Woody Banks View Post
    I will try to remember to take a few photos of the process.
    Knowing your past work, these will not be clones but they'll be an improvement and a pleasure to look at.

    I'll be they're not the asymmetrical tilted towers we're used to seeing!

    Next I hope you'll tackle a pair of 1400 Arrays!
    ". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."—Greg Timbers

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    Senior Member svollmer's Avatar
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    Quote Originally Posted by Woody Banks View Post
    I will try to remember to take a few photos of the process.
    Please don't "try."

    DO IT!

    We wanna see the entire process and learn from it!!!

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    Administrator Robh3606's Avatar
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    I'll be they're not the asymmetrical tilted towers we're used to seeing!

    Well if they are not the stock networks may not work as well as they should. Changing the baffle and the driver spacing means potentially changing the network. The baffle slope was an integral part of the design.


    Have fun doing it. I had fun doing mine.

    Rob
    "I could be arguing in my spare time"

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    Senior Member BMWCCA's Avatar
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    Quote Originally Posted by Robh3606 View Post
    Well if they are not the stock networks may not work as well as they should. Changing the baffle and the driver spacing means potentially changing the network. The baffle slope was an integral part of the design.
    You can time-align without the leaning-tower-of-Pisa look! No horns makes it even easier.

    The 250 could easily have been a rectangle, though that might have left useless extra space in the upper end. Granted, network changes may be on order simply due to any change in box size alone. My point was that Woody's work is always beautiful and his interpretations have their own sense of style that frequently depart from the JBL aesthetic!

    Most likely won't be black ash, either.
    ". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."—Greg Timbers

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    Administrator Robh3606's Avatar
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    My point was that Woody's work is always beautiful and his interpretations have their own sense of style that frequently depart from the JBL aesthetic!
    Yes he does. But form in this case is an important aspect of the design so if you change the form be prepared. Not saying you can't change things but it helps if you know why things were the way they were. With that knowledge you can explore other options with the reason for the original design at hand and go from there. Never a good idea to change things without understanding the original. Anyone doing a clone of them should read the L250 design brief. It's a bit buried so I will drop a link to it.

    http://www.audioheritage.org/vbullet....php?4556-L250

    Rob
    "I could be arguing in my spare time"

  7. #7
    Senior Member rdgrimes's Avatar
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    Quote Originally Posted by BMWCCA View Post
    The 250 could easily have been a rectangle, though that might have left useless extra space in the upper end.
    I disagree. The cab is designed with a purpose. It could have been a difference shape, but not a rectangle.

  8. #8
    Senior Member Amnes's Avatar
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    Woody, if you may clone the cabs. They are sexy as hell!

  9. #9
    Senior Member Woody Banks's Avatar
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    Quote Originally Posted by Amnes View Post
    Woody, if you may clone the cabs. They are sexy as hell!

    I agree! I will stick with the original design shape this time but will be using Baltic birch instead of particle board and will probably pick something like Bubinga or Paduk for the veneer.
    Here is a photo of the older Ti crossover compared to the later Ti BQ and a shot of the L250 after unpacking.
    BTW Forward Air did a great job of shipping both of the pallets of JBL's from Oregon to Mich. @ a resonable rate to boot.
    Attached Images Attached Images   

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    Hi Woody,

    in my tests the TIBQ Xover sounded the best in stock form in my TIs

    Mark
    Think center channel for 250TIs; (2) 108s, a 104 and a 44ti, now what?

  11. #11
    Member gmarascortt's Avatar
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    Hey Woody.....

    How is this project coming along?

    If I can't find another set of 250Ti's right away, maybe I will buy a set of clones from you!

    LOL!

  12. #12
    Senior Member Woody Banks's Avatar
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    Quote Originally Posted by gmarascortt View Post
    Hey Woody.....How is this project coming along? If I can't find another set of 250Ti's right away, maybe I will buy a set of clones from you! LOL!
    The project was put on hold for a bit due to carpal tunnel surgery last week. Maybe this will also help with my "fecal touch syndrome". Lately everything I touch turns to shit! Cabin fever will be sure to get be back in the woodshop later this week. I was glad to hear that you were able to get your money back from that attempted ebay screwing on the 250Ti's.

  13. #13
    Senior Member JuniorJBL's Avatar
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    I sure like "L" 250 cab's just a bit better. No grill plugs. They sure are pretty!
    Always fun learning more.......

  14. #14
    Junior Member I want TAD's Avatar
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    Thumbs up

    Good work~~

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    ...what do you think about these?

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