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Thread: My JBL DIY

  1. #16
    Super Moderator yggdrasil's Avatar
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    Quote Originally Posted by Alex Lancaster
    GGGreat!, when You have a chance, get rid of the LE15´s, and try some 2235H's.
    Alex you will have to excuse my ignorance, but what is the difference between the 2215 and the 2235?
    Johnny Haugen Sørgård

  2. #17
    Alex Lancaster
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    Johnny:


    They are very different, IMO the 2235 is modern, more efficient, and goes down lower, the construction, although they may look similar is another thing:

    LE15 = deep plate gap, less power handling, non-vented magnet, it is a 1940´s design.

    But, as always, whatever sounds good.

  3. #18
    Administrator Mr. Widget's Avatar
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    Hey Johnny,

    I noticed your new avatar... did that fat cat eat your son?
    Attached Images Attached Images   

  4. #19
    Senior Member 57BELAIRE's Avatar
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    LOL

    Quote Originally Posted by Mr. Widget
    Hey Johnny,

    I noticed your new avatar... did that fat cat eat your son?
    Great one Widget!

    And from one Norseman to another....beautiful job!

    I can see you're upholding the storied legacy of Scandinavian woodworking (books).... I've used bags of sand....whatever works brother!

    Anyway, great post and to Sigurd Stefansson....thanks for that little gem!

    rbh
    OPUS POCUS

  5. #20
    Super Moderator yggdrasil's Avatar
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    Quote Originally Posted by Mr. Widget
    Hey Johnny,

    I noticed your new avatar... did that fat cat eat your son?
    Oh no. He has grown far too much since that picture. Would have to be a much fatter cat.

    Will have to make a new avatar. Had to make a crude incorporation of the smith horns in order to keep house peace.
    Johnny Haugen Sørgård

  6. #21
    Super Moderator yggdrasil's Avatar
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    Update

    Have been upgrading the speaker a little.

    First I took out the crossovers, going external. This is a preparation action before building charge coupled networks.

    Then I mounted the new Smiths. The 077's were moved a while back when the Smith prototypes were put in.

    Third I cut just a little larger hole in the baffle to fit my newly acquired 2245's. Before installing the 2245's I also added more internal bracing. Could probably still do with more bracing, but that won't be with these boxes at all.
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    Last edited by yggdrasil; 03-26-2006 at 12:11 PM. Reason: Forgot to upload the picture
    Johnny Haugen Sørgård

  7. #22
    Senior Member northwood's Avatar
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    congratulations

    A government big enough to give you everything you want is big enought to take away everything from you

  8. #23
    Moderator hjames's Avatar
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    Quote Originally Posted by yggdrasil
    Have been upgrading the speaker a little.

    First I took out the crossovers, going external. This is a preparation action before building charge coupled networks.
    Tell me a bit about running your crossovers external - I' m currently running a set on top of my boxes (3 ways) but it means the back isn't fully sealed due to the wires running in and out. Then again, I've only got one set of terminals mounted to the back - if I was to mount 3 sets of terminals - one pair for each driver, I could dink with the circuits whenever I wanted and still have sealed cabinets. Tho I've still got the LE15s ...
    2ch: WiiM Pro; Topping E30 II DAC; Oppo, Acurus RL-11, Acurus A200, JBL Dynamics Project - Offline: L212-TwinStack, VonSchweikert VR-4
    7: TIVO, Oppo BDP103D, B&K, 2pr UREI 809A, TF600, JBL B460

  9. #24
    Super Moderator yggdrasil's Avatar
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    Cabinet back is sealed. 4 sets of terminals.
    Johnny Haugen Sørgård

  10. #25
    JBL 4645
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    Quote Originally Posted by Mr. Widget View Post
    Hey Johnny,

    I noticed your new avatar... did that fat cat eat your son?
    Johnny

    I do how ever approve of the black cat on the JBL. I’ve seen some other JBL publishing pictures that uses a black cat in the archive pictures.

  11. #26
    Senior Member spkrman57's Avatar
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    Nice speaker system project!

    Thanks for sharing it with us!

    Regards, Ron
    JBL Pro for home use!

  12. #27
    Super Moderator yggdrasil's Avatar
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    Thank you Ron.

    The speakers are simply amazing, but will still be replaced sometime during the fall/winter. I have most of the parts and ideas, but still a long way to go.

    Here's a little teaser...

    The design goal with the new speaker system is to make it easy to change drivers / horns / crossover frequencies / crossovers slopes and respons shaping.

    It will start life as a 3 way. The woofers in separate ported 10 cuft cabinets. Mid-bass with DIY horns and HF with DIY horns. I have 2245 woofers, TAD TM1201 mid-bass and 476Be HF.

    I have designed a modular active crossover and started etching PCB's.
    Johnny Haugen Sørgård

  13. #28
    Administrator Robh3606's Avatar
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    Hello Johnny

    Can't wait to see what you come up with! I like your present speakers just fine.

    Rob
    "I could be arguing in my spare time"

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