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Thread: JBL DX-1 Active Crossover

  1. #16
    Senior Member gferrell's Avatar
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    DX-1 Cards

    I have some cards for the DX-1 if anyone needs them. I don't know what they are for but I used the two that were for the XLP-200's and these are different. Name:  DX-1 Cards.jpg
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    XPL 200's w DX1, XPL 160's, XPL 140's, L7's, L5's, L3's, L1's Homemade L Center, 4412's, 4406, L60T's, L20T's

  2. #17
    Senior Member gferrell's Avatar
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    Here is the printed side of the boards. If anyone knows what they are for chime in.
    Name:  DX-1 Cards printed side.jpg
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    XPL 200's w DX1, XPL 160's, XPL 140's, L7's, L5's, L3's, L1's Homemade L Center, 4412's, 4406, L60T's, L20T's

  3. #18
    Administrator Robh3606's Avatar
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    That's one Low and one HF board. The one with the opamp layout the LF The cards for the XPL-200 are very simple. I would definitely be interested I could bi-amp my 1400 Arrays. Tried it with a project board but could never get it to work or understand why it didn't.

    Rob
    "I could be arguing in my spare time"

  4. #19
    Senior Member HCSGuy's Avatar
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    I am not a DX-1 expert, but my memory from old posts is that there are two different types of cards, correct? The simple, symmetrical LF and HF cards for the XPL-200/200A, and the asymmetrical ones that were used for the K2-S5500, 9500 etc. GFerrellís pics do not look like the cards for XPL-200s. If you are interested in sending me a blank one of each, I can pursue having them reproduced and can return them to you if you like.

    Rob, are you trying to bypass the internal LF/MF crossover on your arrays, or is your plan an additional crossover cascaded onto them? I would be interested in how it turns out, as I am passively bi-amping mine know, so itís an easy upgrade.

    Unfortunately, this isnít getting the OP any closer to a DX-1. Btw, I think the last one I saw sold for about $700, correct? I remember that guy in Hong Kong that paid $2k for one as well. Yikes!
    That the internet contains a blog documenting your life does not constitute proof that your existence is valid. Sorry.

  5. #20
    Senior Member gferrell's Avatar
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    I would be happy to work with both of you. I need to correct something though. Somehow I posted the picture twice. I only have two of the cards on the right (one with resistors on it) and 3 of the cards on the left. I'm not after money, just glad to help.
    XPL 200's w DX1, XPL 160's, XPL 140's, L7's, L5's, L3's, L1's Homemade L Center, 4412's, 4406, L60T's, L20T's

  6. #21
    Dang. Amateur speakerdave's Avatar
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    I would be interested in having some correct blank cards-- like a few sets.
    "Audio is filled with dangerous amateurs." --- Tim de Paravicini

  7. #22
    Administrator Robh3606's Avatar
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    Rob, are you trying to bypass the internal LF/MF crossover on your arrays, or is your plan an additional crossover cascaded onto them? I would be interested in how it turns out, as I am passively bi-amping mine know, so it’s an easy upgrade.
    That would be the plan to do an active bi-amp. Greg was kind enough to work it out so a schematic is available in the System Section in the Tech Library. There are 2 types or cards. I missed he said he used the XPL cards!

    Rob
    "I could be arguing in my spare time"

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