Just came across this review from Ukraine that compares an entry level speakers cable with a 220V power lead. It's obviously a cheek in tongue review, however it does show some subtle differences, there is a summary table at the end.
Both cables are of 10m length, audio cable cost around $30, power lead - $9. He measured Voltage losses on the cables connected to a 4 Ohm resistive load (the big metal box on the right). Yellow signal is directly from the amp, blue measured in the load.
Measurements were done at different frequencies, Amp was feeding 100Wt.
Enjoy.
Both cables are of 10m length, audio cable cost around $30, power lead - $9. He measured Voltage losses on the cables connected to a 4 Ohm resistive load (the big metal box on the right). Yellow signal is directly from the amp, blue measured in the load.
Measurements were done at different frequencies, Amp was feeding 100Wt.
Enjoy.