Stevemj: You're not off-base. Cables are not directional and can't be for audio, specifically for the reasons you described. The conductors have to pass current equally well in either direction.
Nilthepill: Why would the switching cause "some dilution?" Do you own a sound system with no switching? With no contacts? All junctions soldered from source to speaker drivers? I doubt it. With good switches, you don't get "dilution."
Nilthepill: Why would the switching cause "some dilution?" Do you own a sound system with no switching? With no contacts? All junctions soldered from source to speaker drivers? I doubt it. With good switches, you don't get "dilution."