power cable

Try it on both to determine which placement is better. Someone’s ears on this side of the keyboard can’t determine that. Have fun with the experiment.

Certainly try on both. But power cords for amps tend to be different than for components. Emphasis’ for a component power cord is shielding, emphasis on a power cord made for an amp is capacity… lots of metal. 

What gauge is the cable? If it’s 14 gauge, you probably need to stick with sources. I’d it’s 12 gauge or bigger, you can use it anywhere.