I want to use Jantzen air core inductor for the tweeter, copper foil inductor for the midrange and Jantzen iron core with disc for the bass.
What I concerned about the crossover is set at 400Hz, and any conflict by using different type of inductor (copper foil and iron core with disc)
Thanks 🙏
What I concerned about the crossover is set at 400Hz, and any conflict by using different type of inductor (copper foil and iron core with disc)
Thanks 🙏
The coil DC resistance will be different for air core and iron core inductors. This should be taken into account.
In a parallel crossover, the sections will not interact.
In a parallel crossover, the sections will not interact.
The stock iron core inductor for tweeter has 4.5R DCR, and I'll replace it with Jantzen air coil with dcr 2.24R and put a 2.2 resistor in series to achieve closer to 4.5R
The copper foil inductor has DCR with 0.54R vs the stock one that has 0.6R
The iron core inductor for the bass has the same DCR as the stock one, which is also 0.45R
The copper foil inductor has DCR with 0.54R vs the stock one that has 0.6R
The iron core inductor for the bass has the same DCR as the stock one, which is also 0.45R
What is the gauge of each, and the type of the current inductor?
The one you mention here seems to have a powdered iron bobbin type core.
While inductors for the mid and tweeter just got influence on the spl, the inductor for the bass increases your Qt, so you have to include it in the tuning of your speakers. Enter it in the simulation and change the enclosure volume (it needs to be bigger).
Every serial resistance is reducing the spl. But on the woofer it changes the Qt too. Why not for the mid and tweeter? Unlike the woofer, they aren't used at their resonance frequency.
To use iron core coils above the bass is much more expensive and air core coils have lower distortion. It is reasonable to use them there. In the bass range the iron core makes often sense because a big air coil will have higher Rdc or needs a much thicker wire, which makes it more expensive.
Here you go.
Tweeter: https://www.hificollective.co.uk/catalog/000-1395-1mh-jantzen-air-core-wire-coil.html
MIdrange: see attach picture for 18 AWG
Bass: https://www.hificollective.co.uk/catalog/000-5579-2mh-jantzen-iron-core-coil-with-disc.html
Attachments
BTW, I also have this inductor that supposed to be bought for the midrange.
https://www.hificollective.co.uk/catalog/000-2131-1mh-jantzen-iron-core-coil.html
https://www.hificollective.co.uk/catalog/000-2131-1mh-jantzen-iron-core-coil.html