Hello,
I recently burned an inductor in the crossover section from one of my KEF speakers. I measured/compared it with an LCR meter and other similar inductor from the working speaker, and they measured different. Then, I swap solder them and the problem swaped too, so the problem was hunted down to be the inductor.
The inductor actually looks like the one in picture 1 (iron core), while I have seen this other one as a proper substitute. Picture 2 is the Jantzen one I am planning to put in place. Will it affect in any bad way to be air core instead of iron core, keeping inductance and DC resistance the same?
Wire gauge is even thicker, so there should be no problem regarding that.
I recently burned an inductor in the crossover section from one of my KEF speakers. I measured/compared it with an LCR meter and other similar inductor from the working speaker, and they measured different. Then, I swap solder them and the problem swaped too, so the problem was hunted down to be the inductor.
The inductor actually looks like the one in picture 1 (iron core), while I have seen this other one as a proper substitute. Picture 2 is the Jantzen one I am planning to put in place. Will it affect in any bad way to be air core instead of iron core, keeping inductance and DC resistance the same?
Wire gauge is even thicker, so there should be no problem regarding that.
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I am no expert on inductors but if the have the same inductance I would guess they should be fine.
The air cored inductor will have many more turns as an iron core concentrates the magnetic field.
The air cored inductor will have many more turns as an iron core concentrates the magnetic field.
If you push the iron core hard enough it can saturate and temporarily change its' value a lot until it comes out of saturation. Air core inductors don't have that problem but to get the resistance down due to the extra wire required because of no core, it needs more expensive wire to wind. TANSTAAFL
G²
An ai core will be much bigger than a iron/ferrite core if you can get a close match in DCR.
Expect the Air core with matching DCR to be much more expensive and heavy and BIG.
Expect the Air core with matching DCR to be much more expensive and heavy and BIG.
So long as the dc resistance is the same, the filter response will be the equal. The air core is going to be much bigger and needs to be kept away form other inductors
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