BL distortion prediction / analysis in subs

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OscarS,

Thanks for pointing out the differences.



I wish i could be :)


I did the modeling for the JBL wgti. In order to model the system right, it would be great to know how the structure looks like actually. This is just an approximation:

flux:

This is the BL curve given by FEMM:

And the BL curve given by my app: (pretty much the same)


And here are those curves I was talking about: (see post #20 3rd image)


Well, anyhow the wgti series sound, the BL curves look like these. I found contradictory information on the web some stating that wgtis have straight curves and others that it doesn't. Actually I don't know anymore :)

p.s. The coils were connected in series.


Thats actually a very good approximation of the internal structure of the mobile audio DDD motor. Although, I have no idea why the BL curve differs greatly than the model where the coils are more outer-hung. :confused:
 
Dan I am going to track one of those down eventually...it is on my list.

Split coil below.

image.jpg
 
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