If speaker wires are run through your attic or crawl space under the house is the signal affected by the ambient temp of the wire. In the summer it could be 120 deg. in the attic or
35 deg in the crawl space. Could you have a condensation problem inside the wire on very humid cool days. Does a signal current warm the wire at all, so when there is no signal after system is turned off at night is the creation of condesation possible?
I realize house electrical wiring runs through the same areas and have never heard of this being a problem but I guess you would have to check the quality of the electrical signal not just voltage or amps. Could you even have the right voltage and amps and have a poor quality AC signal?
I'm just curious about this as I am about to run new wires for surround speakers.
Not losing sleep over this just curious.

Brad