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Strange results when measuring delta-AC in RFL-3way

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  • Strange results when measuring delta-AC in RFL-3way


    Referring to this thread:

    I have conducted a number of measurements and simulations, using the method stated by Dave Ralph, and has come up with some fairly strange results.

    If I flip the polarity of the tweeter and pulls it forward abt 8 mm, I get a very accurate similarity between measured (Black) and simulated (Red) curves for the combined output from mid and tweeter.

    (I get the same result if I flip the woofer polarity and pushes it back 8 mm!)

    What is this? The good part (if any) is the extreme tracking between the curves, but I cannot generate that by just pushin/pulling the drivers forward och backward


    Click image for larger version

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    Perry Mason talking to his dentist:

    "Do you swear to take the tooth, the whole tooth and nothing but the tooth, so help you God?"