You should also try to calculate the dissipation of the L under full power conditions as a sanity check. Or better yet, measure the temperature rise of the inductor over a period of several hours at full power. Trouble can come from surprising directions when doing that long term full power test. There IS a safety consideration here, even for home systems that are subject to use at high power. You don't want to go to bed after a long and loud party with inductors smoldering inside your speaker enclosures.
Power dissipation is also a compelling reason to use only film type capacitors in our crossovers.
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