Inductor placement

Right now this is arranged in it's circuit so the components are as close to where they go next in series.

I'm wondering if I'd be better off putting the caps more in the center and all the inductors on the outside. Then I can run some wire underneath the plate to link parts where their leads are not long enough.

I understand the concept of inductor interference. I also understand having them in different planes eliminates most of that interference. That said, these inductors feel really close together

I want to keep it tightly packed for personal aesthetics. Both filters are mounting in the wall.
 

Attachments

  • PXL_20250227_014646487.jpg
    PXL_20250227_014646487.jpg
    445.5 KB · Views: 51
  • PXL_20250227_014638178.jpg
    PXL_20250227_014638178.jpg
    661.8 KB · Views: 52
Yeah. Note the comments from Troels about not seeing a coil thru the hole of another coil. That said, even when pretty close, coils in different orientations are only minimally affected by interaction. I would worry most about the smaller coils in the tweeter.
 
Yeah. Note the comments from Troels about not seeing a coil thru the hole of another coil. That said, even when pretty close, coils in different orientations are only minimally affected by interaction. I would worry most about the smaller coils in the tweeter.
I think I might spread them out a bit more just in case. This XO in particular is inordinately affected by a variance in inductance. 0.2 variance on one of the mid inductors can toss a wide 3-4 db dip through 3/4 of my mid range band.
 
With film caps, I believe you can get inductive coupling from coil to cap as well as coil to coil though not as pronounced. I'm sure several moderators will jump in if I'm completely off base.

Also avoid any large copper lands under a coil.
 
I would connect individual sections with jumpers and see if they match the sim. For me it would be quite a bit of listening before I was ready for a final x-over design.
My last 3 designs have been within 2db of their sim. I just full send them now. I leave the rest as character. Perfection is the enemy of completion.

Next up is the company activity fund build where I get to use company money. I like these ones. It's really fun to see other people put your build together and cherish it in their home