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Thread: The JBL 4345 Club

  1. #61
    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by schloerch
    I am glad that you like it,Mr.Widget. These are original 4345's done with maple-wood...
    I agree - I really like the look.

    There are no mounts for grills - do they have grills?

    And, the 2245H's lool to be the newer version, which confused me.

    On L is 1980's vintage 2245H - on R is 2002(?) vintage 2245H.

    Your's look like the newer vintage... Have you refurbished those 4345's?
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    bo

    "Indeed, not!!"

  2. #62
    Administrator Mr. Widget's Avatar
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    Time to pull a Bo....

    Of course you really like the maple.... look at your floor.


    Widget

  3. #63
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    Let me try one-

    ..and Bo's cat (or dog- a golden, I presume?) really loves this chair:


  4. #64
    Senior Seņor boputnam's Avatar
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    You guys all suck...



    -----

    But, you should both be here right about now. There's a Beaucastel '90 CDP that is begging for company. John Nebel - where ARE you...!!
    bo

    "Indeed, not!!"

  5. #65
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    Quote Originally Posted by boputnam
    You guys all suck...



  6. #66
    Administrator Mr. Widget's Avatar
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    So, is it time to remove posts 62-66 before Ian notices...


    Widget

  7. #67
    Senior Member Ian Mackenzie's Avatar
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    Woof,

    What you say?

    Perhaps images of all the 4345 drivers (the whole internals) on polished floor boards would be nice. Something for the 4345 Gallery to come!

    I am down with the flu so I can't talk..only woof

  8. #68
    Junior Member schloerch's Avatar
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    Quote Originally Posted by Don McRitchie
    That was my reaction too. They look like the Alvin Lustig designed systems from the early 50's. I quite like the look.
    ...how do you like me know? Telle me more about Alvin Lustig.
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  9. #69
    Dang. Amateur speakerdave's Avatar
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    Quote Originally Posted by boputnam
    This evenings resultant response curve, in FFT. Not bad.
    Lpads at "0", except the midbass which is at "-1". Don't ask me why... :dont-know
    Thanks for the tip. My settings are close to that. My room is different from yours, probably smaller and better damped.

    Quote Originally Posted by Mr. Widget
    Drop me a line when this meeting of the 4345 minds occurs... I'd like to tag along.
    Absolutely!

    Chas, Ken, schloerch and others, thank you for the kind words. I will be reporting on progress when I can.

    David

  10. #70
    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by schloerch
    ...how do you like me know? Telle me more about Alvin Lustig.
    Sorry Dave, Bo, and the rest... these maple cabinets are gorgeous!

    Here is a link to some of the older JBLs that have a similar look to yours.

    http://www.lansingheritage.org/image...1957/page6.jpg


    Widget

  11. #71
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    these maple cabinets are gorgeous
    yeah, I'm with you. I keep coming back to this thread just to look at them. I have to say- they're the prettiest 4345's I've seen thusfar. I'll even go so far as to say I think all the big monitors would look good in maple. That was an excellent choice- one I don't think I would have made- but after seeing it done I certainly would. Lovely.

    JBL was so lucky to have Lustig. Alvin Lustig's style was effective, clean, bold, highly marketable, and he had an excellent grasp on 50's modern trend. There was a slight hint of playfulness to his work (especially his graphic design) that indicated the man sort of cranked it out in a gifted, effortless fashion. It's a common statement, but it's worth repeating: 'He was a natural born designer.' period.

    http://www.alvinlustig.org/

    I couldn't resist comment on a designer I admire- or on a pair of speakers I admire.
    Alas, no more OT hijacking- carry on. Sorry.

  12. #72
    Senior Member Ian Mackenzie's Avatar
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    I have been getting some pm requests for details of the 3145 crossover,what capacitors to use, details of the drivers for the 4345 (cloned) and odd ball question like can I use a 2440/2441 driver? Unfortunately I simply do not have time to answer a stream of ongoing questions and 99.99 % of it has been covered on the public forums to date.

    There are volumes of good data on certain threads that you can refer to regards accurately building to the required 4345 technical specifications.

    For example but not limited to:

    http://www.audioheritage.org/vbullet...read.php?t=314
    http://www.audioheritage.org/vbullet...read.php?t=952

    Giskard has also posted numerous times details of the equivalent crossovers. My suggestion is you build a charge-coupled network using Solen capacitors. If there is sufficient demand and popularity we may open a thread on that topic. (I will be attending to my own CC network a a week or so!)

    However, while I would encourage that imagination is more important than knowledge (..famous work words of Albert Einstein 1879-1955) you will need to do your own development if you decide to make substitutions on drivers.

    If you have a question following a search about the original design post it in a thread covering your project as no doubt others will pitch up with a heads-up and the wider membership/spectators will benefit following your progess.

    Now, just to see if you are awake, here is a quiz. The first poster to state the correct description of what the top and bottom diaphragm is (excluding moderators ..and Giskard please) in the attachment gets a mystery prize! Only one answer per poster thanks

    Ian
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  13. #73
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    Quote Originally Posted by Ian Mackenzie
    Now, just to see if you are awake, here is a quiz. The first poster to state the correct description of what the top and bottom diaphragm is (excluding moderators ..and Giskard please) in the attachment gets a mystery prize!
    Did you do the aquaplas yourself?

    John

  14. #74
    RIP 2011 Zilch's Avatar
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    From the red dots, both are D16R2425.

    Bottom one has homebrew Aquaplas coating; factory don't coat the diamond surround, as I recall.

    [Not that it's a bad idea, tho, of course.... ]
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  15. #75
    Senior Member Ducatista47's Avatar
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    That's what I get for not taking my speakers apart more. I thought they were D16R2421's, without and with aquaplas.

    Clark
    Information is not Knowledge; Knowledge is not Wisdom
    Too many audiophiles listen with their eyes instead of their ears


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