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Thread: 045Be - Super Tweeter

  1. #1
    Senior Seņor boputnam's Avatar
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    045Be - Super Tweeter

    :shock:
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    bo

    "Indeed, not!!"

  2. #2
    Senior Seņor boputnam's Avatar
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    Sure it's tiny, but...

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    bo

    "Indeed, not!!"

  3. #3
    Senior Seņor boputnam's Avatar
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    Say, "Ahhh..."

    Sorry the exit of the compression driver is not focussed! Tough shot to get.

    NB: there is no distortion of the pic - that is the true shape of the horn.
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    bo

    "Indeed, not!!"

  4. #4
    Senior Seņor boputnam's Avatar
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    The, ahem, "other" end...

    Sorry the medallion glared - it's polished chrome finish (like the 435Be)...

    The talented hands of Mr. Widget were left-in for scale...
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    bo

    "Indeed, not!!"

  5. #5
    Senior Member herve M's Avatar
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    043 Be ???? Or 045 Be ?

  6. #6
    Webmaster Don McRitchie's Avatar
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    045Be

    The 043 was a typo. I have subsequently corrected this in the thread title.
    Regards

    Don McRitchie

  7. #7
    Steve Gonzales
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    what kind ?

    What type of diaphragm does it use, I realize it's Be., but is it simular to an 075,6,7 -2404 ? anular, I think ? I talked to a guy at Westlake and man was he drunk with TAD stuff ! Not that it isin't any good. I asked them about the rumor that they "bought up" all the 076's and the guy replied , "NO", we bought a "production run of 2403's". My biased curiousity begged the question: "Great tweeters huh ?" He said he'd rather have TAD. I asked him what the equivalent TAD UHF driver would be and ( ha-ha ) he said he didn't know but he'd rather have TAD. That gets me to my question. Does JBL sell these new Be. drivers to the public ?, to anyone like , say, Weaklake ,uh ,Westlake? Sorry, I just had to rib them a little.... Great copies of JBL designs, Pioneer, right? Oh, yeah, they made the "super-tuner" car stereos....

  8. #8
    Webmaster Don McRitchie's Avatar
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    The driver is described here:

    http://www.audioheritage.org/html/pr...logy/045be.htm

    The picture below shows a disassembled example with its 1" diaphragm.
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    Regards

    Don McRitchie

  9. #9
    Steve Gonzales
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    alrighty then!

    thanks for the link, I had looked at that before, a little CRS is setting in at the ripe ol' age of 42 What a magnificant piece of engineering !

  10. #10
    Maron Horonzakz
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    WHAT???? No diamind surround????

  11. #11
    Webmaster Don McRitchie's Avatar
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    Nope. Doug Button has removed the diamond surrounds on all of the recent JBL compression drivers. The diamond surrounds were a workaround to gain better HF extension by taking advantage of the resonance of the surround. Doug prefers to rely on the natural extension of the diaphram material, and where necessary, rely on equalization to extend the response. This eliminates the transient smearing that occurs with parasitic resonance. His use of smaller and lighter 3" diameter diaphragms inherently results in greater extension while his unique suspension design means that they can accept considerable EQ with no loss in power handling compared to previous drivers.
    Regards

    Don McRitchie

  12. #12
    Maron Horonzakz
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    Ahhhhhh !!! Back to sanity And good engineering at JBL. I was worried they would go to diamond foam surrounds to satisfy marketing dept.

  13. #13
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    So where are they?

    It's been a few good years now, and like the flying cars we were all promised- I don't see the 045Be available to the public unless you pony for the K2. I am finding the ever cool looking UT-045Be which (according to my crude Japanese web page translation) is a stand alone version with feet and a network card (right?). At 500,000- 525,000 yen...she's about $4K a pair.

    Harmon in Woodbury claims not to have any, and dealers ask at least several times '...you want a WHAT!?' and '...what the hell is that?'

    So....where does one obtain the seemingly unobtainable 045Be? I'm totally serious.

  14. #14
    norealtalent
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    I don't know about the tweeters but I've got a buddy who claims to have managed coralling me a brand new pair of 435Be's. I'll introduce him next time you come up. Maybe he can help you out...

  15. #15
    Dang. Amateur speakerdave's Avatar
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    Quote Originally Posted by norealtalent
    I don't know about the tweeters but I've got a buddy who claims to have managed coralling me a brand new pair of 435Be's. I'll introduce him next time you come up. Maybe he can help you out...
    Share, Mr. Talent, share; there's a good fellow!

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