From my experiences, power cords effect digital the most! They need clean, refined power and current isn't as important as it is with amps(and other high current components). Even a basic power cord designed to work on digital will get rid of some of the digititus and smooth things out- i.e. larger soundstage, greater transparency, greater image depth, texture/body, a more palpable presence- basically it makes things MUCH differnt. Most cases that different is better and then different power cords have different strong and weak spots- one may be super transparent at the expense of some body; etc....
In other words try a few and see what you hear, a lot of power cord companies offer in home trials so you have little if anything to lose.
In other words try a few and see what you hear, a lot of power cord companies offer in home trials so you have little if anything to lose.