When using Monoprice RCA cables for 2 Ch audio, I like to use the Premium Component video cables instead of the 2 channel RCA. The main difference being that these are Rg6 coax instead of Rg59 and provides a better conductor and likely better shielding as well. The RCA connectors seem to be a little bit nicer also on the component video. And of course, it is even stiffer, which is the main drawback to these.

Is there an audible difference between the two? Not sure, I haven't tried any AB testing, but the cost difference is a couple bucks, so who cares?