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Interconnects, speaker wire, power cords. Ask the Cable Guys.

See my other post below.

Chokes like this are made with transformer laminations for the core. The steel used is selected for its magnetic properties as well as cost, so there will be some magnetic losses from nonideal behavior, as well as circulating currents. These will cause some heating in this application. I don't know how much, so I suggested that KP test for warmth.

If the choke gets hot, I would worry about it as a fire hazard and not leave it plugged in all the time. Either plug it in as needed, or get a higher-grade choke. If it stays cool, it is less of a risk. In any case, good workmanship in making the connections and preventing cord strain or damage where it comes out of the box are important factors.


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