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Speaker and Crossover Spice Models?

Discussion in 'Electronic Design' started by Hawker, May 11, 2007.

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  1. Hawker

    Hawker Guest

    I am trying to better understand some of the more complex passive
    crossovers I have seen with multiple poles and figured Spice (Orcad 9.x)
    to the rescue.

    Wondering if anyone has a collection of speaker and crossover PSPICE
    models that they wouldn't mind sharing. I figured I would model my stuff
    on both JBL and Eminence drivers and crossovers.

    If anyone has any OrCAD Spice models for these that they are willing to
    share I would be greatly appreciative.

  2. Tom Bruhns

    Tom Bruhns Guest

    Thought I saw some loud speaker stuff in the LTSpice forum on Yahoo
    Groups, but I'm not finding it now. However, a Google search for
    "loud speaker spice model" or the like will get you lots of hits, and
    a question on the LTSpice forum is very likely to get some replies.

    I suspect it will also be very helpful to look up some articles on
    passive crossovers that go into the reasons they were designed the way
    they were. Just analyzing them will likely leave you with a lack of
    understanding of the whys.

  3. Hawker

    Hawker Guest

    Well that is not to say I haven't done my share of homework, research
    and such. I also have found some good links on loud speaker design with
    spice. The issue is that 99.9% of everything out there is way over
    simplistic. They all tend to be about basic crossover models. Yet if you
    take apart a JBL crossover you see they added all kinds of extra poles
    and tweaks. What is even more interesting is looking at how they tweaked
    say and SR series crossover from the original to the A to the X versions
    in few cases where they didn't also tweak the driver.
    I know in a nutshell what they were doing, but to see the whole picture
    it is nice to model it.
    I have yet to find any crossover resource (or commercially available
    crossover) that takes it to the level of a typical professional PA
    speakers crossover.

    My question was simply if anyone had the models so I don't have to hand
    make them and figure out all the parameters for common drivers and such.

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