I don't think anyone says that the least expensive cable is always the right one. The philosophy is to get the cable capable of delivering the signal (or power) required.

The pencil lead-thin RCA cables often packed with A/V components are not suitable for the task of carrying analog video signals. Switching to a higher quality cable will improve horizontal resolution. Same goes for the 50' long speaker wires that used to be packed with surround receivers. They were so thin, that if the entire length was used, offered too much additional impedance in series with the speaker.

So it isn't "any old cable will do", it's "a cable of proper design for the task."


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris