........
A way to avoid induction using more than 3 inductors could be to spread over 2 PCB's which are separated at a distance in the speaker.
Yes, this is why I wrote at the end of
my post #132 that
"I understand and agree that several high-end HiFi speaker manufacturers are designing their LC-network with rather far distance between coil(s) for woofers and coil(s) for high range drivers."
Also the coils/inductors in LC-network, together with capacitors, cause extra power load to the amplifier (and also phase rotation).
These are two of the several major reasons rationalize multichannel multi-amplifier system (like
my project) eliminating all the LC-network caps and coils (inductors) and directly dedicatedly driving the SP drivers by individual amplifier, as well as carefully eliminating magnetic susceptible metals in speaker level signal handlings.
Again, in any way, my point here in this thread is: "Electromagnetic interferences more or less do deteriorate speaker level signals, and we know many ways/measures to minimize and/or eliminate such interferences."
(And I believe usual AC power cables sitting near to the SP cables do
not interfere the SP signals in audioble magnitude.)