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Thread: JBL enclosure and baffle plans

  1. #1
    Senior Seņor boputnam's Avatar
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    JBL enclosure and baffle plans

    JBl enclosure plans and porting charts

    http://www.lansingheritage.org/html/.../1970s-kit.htm
    Last edited by boputnam; 09-01-2003 at 02:00 PM.
    bo

    "Indeed, not!!"

  2. #2
    Guido
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    Hi Bo!

    Great Posting but we need more res.
    I can't read anything

  3. #3
    Guido
    Guest
    What do you think about uploading the pdf for all users?

    Thanks Bo!

  4. #4
    Senior Seņor boputnam's Avatar
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    "What do you think about uploading the pdf for all users?"
    Great suggestion - I don't use that enough (sorry, Don...!! :o ).

    I've redone them all - let me know if that works...

    http://www.lansingheritage.org/html/.../1970s-kit.htm
    bo

    "Indeed, not!!"

  5. #5
    Guido
    Guest
    Yeah!

    Thanks Bo!

  6. #6
    Guido
    Guest
    Why you ask?

    Of course!

    Thanks

  7. #7
    Guido
    Guest
    He this was only 2 minutes online!


  8. #8
    4313B
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    1975 JBL Transducer - Enclosure Porting Information

    For reference -
    1975 JBL Transducer - Enclosure Porting Information

    http://www.lansingheritage.org/image...75-porting.gif

  9. #9
    Senior Seņor boputnam's Avatar
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    from Giskard
    For reference -
    1975 JBL Transducer - Enclosure Porting Information
    Kisses! Since I now know, how good looking you are, ba-by!
    Last edited by boputnam; 09-03-2003 at 03:52 PM.
    bo

    "Indeed, not!!"

  10. #10
    4313B
    Guest

    1977 JBL Transducer - Enclosure Porting Information

    For reference -
    1977 JBL Transducer - Enclosure Porting Information

    http://www.lansingheritage.org/image...77-porting.gif

    There are a few changes from the 1975 chart. Plus the 1977 chart includes the tunings for the 3.0, 5.0 and 8.0 cubic foot enclosures as described in the Enclosure Construction Kit which Bo has posted in this thread. One should notice the discrepencies.

  11. #11
    4313B
    Guest

    Loudspeaker Component Series Instruction Manual

    In addition here is the tuning information as printed in the separate Loudspeaker Component Series Instruction Manuals:

    Have fun!

    http://www.lansingheritage.org/image...uning-freq.jpg

  12. #12
    Senior Seņor boputnam's Avatar
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    Thumbs up I am ALL puckered up and Having Fun!!

    Hey, Giskard...

    Combining these fb charts with the plethora of JBL discursive literature you posted over Labor Day provides a powerful - shall we say "enabling" ? - reference for better and precision JBL cabinet building.

    Wonderful, wonderful stuff.
    bo

    "Indeed, not!!"

  13. #13
    4313B
    Guest
    And then there are all the AES Journals Those are a hoot and a holler

    Here are some good references -

    "Thiele Small Nuts and Bolts with Painless Math" by Drew Daniels (Teac)
    70th AES Convention 1981

    "Loudspeaker Athletics" by Jeffery N. White (Electro-Voice)
    61st AES Convention 1978
    JAES Vol 27 Nov 1979

    "Constructing Loudspeaker Systems With Predictable Performance" by Jeffery N. White and Raymond J. Newman (Electro-Voice)

    "Sensitivity of Theile's Vented Loudspeaker Enclosure Alignments to Parameter Variations" - by D.B. Keele (Electro-Voice)
    JAES Vol 21 May 1973

    "A Tubular Tuning Method for Vented Enclosures" D.B. Keele (Electro-Voice)
    JAES Vol 22 Mar 1974

    "Experimental Determination of Low-Frequency Loudspeaker Parameters" by J. R. Ashley (University of Colorado at Boulder) and M. D. Swan
    JAES Vol 17 Oct 1969

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