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Impedance plot gremlins
#398808 11/24/13 02:21 AM
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TrevorM Offline OP
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Why in almost every axiom speaker measured is there a notch in the impedance plot right at 1khz? M60's plot are a good example of what I mean.

Last edited by Hellcommute; 11/24/13 02:21 AM.
Re: Impedance plot gremlins
TrevorM #398810 11/24/13 02:47 AM
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Slight wrinkles in the lower mid-range impedance curves are said(see Stereophile speaker reviews which often comment on this)to indicate enclosure resonances at those points. This may not have any audible effect.


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Enjoy the music, not the equipment.


Re: Impedance plot gremlins
TrevorM #398811 11/24/13 02:56 AM
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Thanks John, that's what I thought. Kinda important place at the start of the presence region. It seems every model is affected by this. Could it be a port issue? Seems that's one thing all models may have in common.

From lfr to m2.... They all have it. Hmmm.

Re: Impedance plot gremlins
TrevorM #398816 11/24/13 05:47 AM
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Ian Offline
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Hi Hellcommute,

Good eye to see that little blip. It is actually an LMS bug. You can see it at 100 Hz, 1 kHz, and 10 kHz in all impedance graphs. You need a really good eye for the one at 10 kHz.


Ian Colquhoun
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Re: Impedance plot gremlins
TrevorM #398824 11/24/13 03:01 PM
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Hi Ian, thanks for clearing that up. Too weird to see that trend! It makes sense now though. smile


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