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Thread: How’s that for a speaker crossover

  1. #11
    Join Date: Jan 2009

    Location: Essex

    Posts: 28,737
    I'm openingabottleofwine.


    It is done for exactly the same reason the mains transformer and output transformer of a typical valve amplifer have their respective laminations arranged mutually at right angles. Depending on the skill of the transformer design, especially that of the laminated core, the flux leakage will be small. But the inductors used in loudspeaker crossover networks are often 'air cored', so the flux is poorly contained and thus, unless the coils are arranged at right angles to one another, can cross-couple.

    Inductors that use ferrite cores are better in this respect, but are disliked by some.

  2. #12
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 34,994
    I'm Martin.


    Given that the inductors in crossovers are usually quite small they would have to sit very close together for any interaction to happen.

    I don't recall ever seeing a crossover where this might be a factor not even very cheap speakers. probably because it's a known potential issue and costs nothing to avoid.
    Current Lash Up:

    Audiolab CDT6000 > Topping E30 > Avalon BT2 > Krell KSA50S > JM Labs Focal Electra 926.

  3. #13
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 50,104
    I'm Geoff.


    Is 90 degrees to adjacent inductors the optimum orientation angle?
    Conspiracy theories are only perpetuated because people go looking for them!

  4. #14
    Join Date: Mar 2017

    Location: Seaford UK

    Posts: 1,861
    I'm Dennis.


    There are many different ways to arrange the 90 degrees.

  5. #15
    Join Date: Mar 2022

    Location: brighton

    Posts: 39
    I'm jamie.


    this gives you a good idea.

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