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Thread: $5,000 for one compression driver?

  1. #31
    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by Steve Schell
    Beryllium diaphragms probably do the best job of the metals of maintaining piston response, but I haven't found any I can live with as easily as the phenolics. As edgewound said, merlot or pinot?
    Yeah, it is a personal preference issue. I like reds... but I love Guinness

    Widget

  2. #32
    Senior Member edgewound's Avatar
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    Great commentary, guys


    Yep...Beryllium is bitchen....did I spell that right?...and it's WAY expensive. the EV T35 diaphragm is less than 50 bucks...the TAD ET-703 and earlier are I think a couple of hundred....TAD 4000 diaphragms are around 600 bucks.

    So I'd say the little phenolic EV does a quite respectable job in that sense(cents?).

    FWIW...I haven't heard too many audiophile sounding disco systems lately...which should be a crime...because there is big bucks invested in some fantastic, absolutely torturous sounding nightclubs.

    I like beer to...sorry... just good ol' MGD ice cold...mmmmm...no offense Mr. Widget

    Love to all

    Edgewound

  3. #33
    Senior Member Steve Schell's Avatar
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    Someone on the AA High Efficiency Speakers forum just posted this link to a Chinese company providing beryllium diaphragms. They look like they might be good; JBL knockoffs done in Be.

    http://www.xkoncord.com/big5/list04.htm

  4. #34
    RacerXtreme
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    2 days left.........

    A little less than 2 days left and the auction is up to $8599.00.




  5. #35
    Senior Member edgewound's Avatar
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    Sideways

    Quote Originally Posted by Steve Schell
    All good points, edgewound. I've been a Merlot hound for awhile, just beginning to discover Pinot Noir. Have you seen the movie "Sideways"?
    Steve...

    "Sideways" was hilarious...and my fiance' and I went up to Solvang a few weeks ago and did sort of a "Sideways" tour on a weekend. What a blast...we went to The Hitchin' Post, Fess Parker (Frass Canyon), Foxen, Firestone, Rusack, and some others....found some great wine right here in good ol' Californee.

    Highly recommend....sorry to be off topic

    Edgewound

  6. #36
    Senior Member edgewound's Avatar
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    Quote Originally Posted by Steve Schell
    Someone on the AA High Efficiency Speakers forum just posted this link to a Chinese company providing beryllium diaphragms. They look like they might be good; JBL knockoffs done in Be.

    http://www.xkoncord.com/big5/list04.htm
    Very, very interesting stuff, indeed

  7. #37
    RIP 2010 scott fitlin's Avatar
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    Nice!

    Quote Originally Posted by Steve Schell
    Someone on the AA High Efficiency Speakers forum just posted this link to a Chinese company providing beryllium diaphragms. They look like they might be good; JBL knockoffs done in Be.

    http://www.xkoncord.com/big5/list04.htm
    It looks like Altec diaphragms too! The JBL diaphragms look to be well made!

    Wonder what they cost?

    scottyj

  8. #38
    Senior Member Steve Schell's Avatar
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    Sideways

    Edgewound, I split my sides laughing through Sideways. I had just returned from a northern CA trip, and had just had dinner at Pea Soup Andersen's two evenings before my nephew loaned me the DVD.

    In the optional voiceover narration, actor Paul Giamatti explains that "frass" is a term that refers to insect excrement.

  9. #39
    Senior Member edgewound's Avatar
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    Frass

    Quote Originally Posted by Steve Schell
    Edgewound, I split my sides laughing through Sideways. I had just returned from a northern CA trip, and had just had dinner at Pea Soup Andersen's two evenings before my nephew loaned me the DVD.

    In the optional voiceover narration, actor Paul Giamatti explains that "frass" is a term that refers to insect excrement.
    Well that explains the taste of the wine there ....doh!

    Edgewound

  10. #40
    RIP 2010 scott fitlin's Avatar
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    Quote Originally Posted by Mr. Widget
    Yeah, it is a personal preference issue. I like reds... but I love Guinness

    Widget
    You like Guiness? I could see you having a Samuel Adams Honey Porter! Dark, heavy brew!
    scottyj

  11. #41
    pangea
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    Anyone tried these?

    Quote Originally Posted by Steve Schell
    Someone on the AA High Efficiency Speakers forum just posted this link to a Chinese company providing beryllium diaphragms. They look like they might be good; JBL knockoffs done in Be.

    http://www.xkoncord.com/big5/list04.htm
    Anyone know what they cost and if the quality is comparable to JBL or Radians and last but not least, do they sound as expected?


    BR
    Roland

  12. #42
    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by pangea
    Anyone know what they cost and if the quality is comparable to JBL or Radians and last but not least, do they sound as expected?
    If anyone wants to spring for a pair I'd be happy to run some tests on them and post the measurements. We could compare frequency response, distortion and impedance with original JBLs.

    Widget

  13. #43
    pangea
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    Beryllium diaphragms from China

    I wrote them a mail yesterday and this is the answer I got.

    BR Roland
    ---------------

    Hi-
    WE DONOT KNOW THE DETAIL OF JBL2441/2445J

    IF YOU CAN TELL US THE VOICE COIL INNER DIAMETER AND PICTURE OR DRAWING

    WOULD HELP US TO QUOTE THE PRICE.

    BY THE WAY, COULD WE HAVE YOUR WEBSITE OR BASIC INFORMATION ABOUT YOUR COMPANY

    BEST RGDS/TONY

    ---------------------------------

    PS: What impression does this give you? DS.

  14. #44
    Figge
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    IF YOU CAN TELL US THE VOICE COIL INNER DIAMETER AND PICTURE OR DRAWING


  15. #45
    Senior Member 4345's Avatar
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    knock off diaphrams

    This factory is probably reluctant to mention JBL products due to copyright concerns. I think there is no doubt they are familiar with JBL products. They probably have them in the factory to use as a reference.

    I would imagine that it is a Taiwanese run operation. I heard that JBL made many of its diaphrams in Taiwan at one point. Does anybody know if this is true?

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