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Thread: JBL 4345 CNC'd new build

  1. #16
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    Quote Originally Posted by Ricpan View Post
    Great Job, I would like to know more about the crossover.
    I'll need to inquire from the client...I wasn't sure if followed the original schematic, or started with something new.

    Certainly the big difference is it is passive for top three channels only...with DEX active for bass.

    I've listened to the bass with my crappy amp....fantastic output.
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  2. #17
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    Very clean finish!

  3. #18
    Senior Member BMWCCA's Avatar
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    Quote Originally Posted by atilsley View Post
    I wasn't sure why the original grills needed to protrude so much...hence flush.
    Umm, for the defraction lens? What lens are you using?

    Nice work!
    ". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."óGreg Timbers

  4. #19
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    Quote Originally Posted by BMWCCA View Post
    Umm, for the defraction lens? What lens are you using?

    Nice work!
    Um, I don't think the client is intending on using a separate lens. Certainly, the speakers were sounding pretty good when I was testing them....

  5. #20
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    Owner's choices are interesting and to my limited knowledge seem reversed ... Bass active yet upper frequencies passive, and no lens. But I have no doubt they play magnificently and based on the quality of design and execution, would wager they are sonically every bit as good as OEM or Kenrick.

  6. #21
    Senior Member BMWCCA's Avatar
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    Quote Originally Posted by atilsley View Post
    Um, I don't think the client is intending on using a separate lens. Certainly, the speakers were sounding pretty good when I was testing them....
    Maybe you could continue testing them in the new owner's home and maybe try an A—B with and without a lens and let us know what you think?

    Again, beautiful workmanship.
    ". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."óGreg Timbers

  7. #22
    Senior Member Ian Mackenzie's Avatar
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    Hi Andrew,

    Donít feel obligated.

    There has been curious and at times robust discussions in another thread on the lens on lens off situation.

  8. #23
    Senior Member BMWCCA's Avatar
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    Quote Originally Posted by Ian Mackenzie View Post
    Donít feel obligated.
    I wasn't implying or suggesting an obligation. I was simply replying to the Original Poster's statement:
    "I wasn't sure why the original grills needed to protrude so much...hence flush."
    ". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."óGreg Timbers

  9. #24
    Heather [Senorita member] hjames's Avatar
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    They are a gorgeous pair of monitors!
    Really great work
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  10. #25
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    Any Other's Besides "4345's"???

    Hi Andrew,

    Really nice work on those 4345's!

    Just wondering if you had thought about "other" models like the 4343? The 4344 is the same size physically but

    has a different front baffle layout and other slight differences. A Full Design working set of drawings and assembly help

    was done by another member which is 24 pages long (24.9 MB) http://www.audioheritage.org/vbullet...on-Plans/page2 and

    hopefully that link will give you the page to download that file. Hope it still works!

    See what you make of it...

    Kind Regards,
    DogBox
    [Steve]

  11. #26
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    4343 on CNC? Wow!!!

    Quote Originally Posted by atilsley View Post
    Thanks for your kind remarks.

    ....the Oak trim is angled....but the photo doesn't show it up very well.

    ...the original grills needed to protrude so much...hence flush.
    Hi Andrew,

    Do you have the 4343 or 4343B on CNC file ready to cut? How much does a Flat-Pack of a Stereo Pair work out to be? I am VERY interested!

    I didn't know the Tasmanian Oak did mouldings "like" that front edge..?? Isn't that cool!

    The JBL 2308 Lens is the better way to go unless you want to get "radiated" by the high frequency that comes out of that Horn! The lens tame's it down nicely. "So"

    you need the front Grill to be that deep. I think they also add a sense of "what's under there??"

    Look forward to your reply

    Steve

  12. #27
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    With pics of new Walnut model

    American Walnut over birch ply.
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    Last edited by Mr. Widget; 07-01-2019 at 09:21 PM. Reason: Rotated pics.

  13. #28
    Administrator Mr. Widget's Avatar
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    Looking great... I rotated your images. They look even better that way!
    Look forward to seeing them with a finish on them and populated with their drivers.


    Widget

  14. #29
    Senior Member Ian Mackenzie's Avatar
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    Excellent

  15. #30
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    Polished cab

    Pic of one cabinet polished with wax then buffed.
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