So do crossover designers take DCR levels in inductors used into their designs?
or is less DCR always better?
more specifically can they design with a specific DCR to have a specific effect on the freq response of a driver?
Thanks in advance for the replies !
or is less DCR always better?
more specifically can they design with a specific DCR to have a specific effect on the freq response of a driver?
Thanks in advance for the replies !
Well-designed crossover designs absolutely do, I'm not sure why they wouldn't? Whether it's designing around a cost constraint for the inductor, or finding an optimal DCR for its place in the design, it's an easily measurable and modelable parameter, so would be included in the design simulations.
Super interesting.
maybe that’s why so many people try and change out steel core inductors for ‘better’ air core ones and don’t take the DCR into account and then say the air core was ’ worse’ sounding.
i suppose if changing out a steel core inductor to air core, one would need to check the DCR and match it with an air core. If that’s even possible.
maybe that’s why so many people try and change out steel core inductors for ‘better’ air core ones and don’t take the DCR into account and then say the air core was ’ worse’ sounding.
i suppose if changing out a steel core inductor to air core, one would need to check the DCR and match it with an air core. If that’s even possible.
And it’s probably better not to change an inductor unless you find an exact match to the original inductors DCR?
Yes, but consider changing the larger of the two Ferrite Cored inductors in your Proac DT8 with an Air Core inductor.
The Air Core inductor will need many more turns of much thicker copper wire to produce the same high inductance and the same low DCR as the Ferrite one.
That makes an Air Core coil physically much larger and more expensive than the equivalent Ferrite Core coil.
Cost and size are two factors that must be taken into consideration.
The Air Core inductor will need many more turns of much thicker copper wire to produce the same high inductance and the same low DCR as the Ferrite one.
That makes an Air Core coil physically much larger and more expensive than the equivalent Ferrite Core coil.
Cost and size are two factors that must be taken into consideration.
i thought that air core inductors make more of a difference in the tweeters than the woofers?
thanks !
Tweeter inductors may have small values so the benefits of air core can be utilised at low cost and small physical size.
Woofer inductors may have larger values and so may have to be ferrite core to reduce cost and physical size.
The small amount of distortion which may be introduced by ferrite cored inductors is more tolerable at bass frequencies than at treble frequencies.
Woofer inductors may have larger values and so may have to be ferrite core to reduce cost and physical size.
The small amount of distortion which may be introduced by ferrite cored inductors is more tolerable at bass frequencies than at treble frequencies.
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Only if the inductor doesn't saturate which is a possibility with iron cored or ferrite inductors. This would be most audible in 2 way applications where the woofer is crossed relatively high to the tweeter.
yes, so that’s why I said that it would be more applicable to change the tweeters inductor than the woofers.
didn’t you say to swap out the larger steel core inductor for an air core?
or didn’t I read that correctly ?
thanks
and from what I read in this article was that saturation and distortion is gradual.
https://www.audioholics.com/loudspeaker-design/the-loudspeaker-crossover
Btw I am going to remove the crossover so I can see the values and maybe take some measurements of the parts.
yeah I know they will be different in a circuit. I’ll have to take some out.
i also want to do this because one speaker is louder than the other. measured. ( and you can tell easily from doing a left to right and back sweep of pink noise. The high freq are louder on the left speaker from the right )
i think it might be due to the tolerances of the parts used.
could be the woofer differences as well?
yeah I know they will be different in a circuit. I’ll have to take some out.
i also want to do this because one speaker is louder than the other. measured. ( and you can tell easily from doing a left to right and back sweep of pink noise. The high freq are louder on the left speaker from the right )
i think it might be due to the tolerances of the parts used.
could be the woofer differences as well?
Nothing to do with me!
You are referring to your other post, so check out the participant's contributions carefully.
You only have to lift one leg of a component from the board to get an accurate reading of its value.
That is enough to take the component out of the circuit.
yup that’s what I meant. Thanks tho.
i do have some experience modding my Marshalls.
only difference is Marshalls can zap you with over 500v if you don’t discharge the smoothing caps. Totally ruins your day too. Lol
It could even be room placement. You'll have to measure on down the line to find out.
yes definitely could be that but I did close mic’ed measurements to see if that was the case.