I do think that clean power, however that is achieved in any particular listener's case, helps. I have heard this to be the case even when I first introduced my modest Monster power strip into my system.
There are many threads here on A'gon about the effects of having clean power and how to go about assuring or achieving it. My recommendation would be to handle it once at the source via a power conditioner suitable for the task at hand. The best/most respected ones also provide specifications that clearly indicate power/current delivery and noise filtering capabilities so one can make an educated decision about which one to try. Wires/power cords and many other esoteric tweaks seldom provide much of anything in terms of specifications or other measurable attributes that can be used to make an educated decision. Even if it turns out a particular gadget seems to work, why it does what it appears to do is still a mystery and the chances of similar results being repeated elsewhere in any kind of predictable manner is probably low.
There are many threads here on A'gon about the effects of having clean power and how to go about assuring or achieving it. My recommendation would be to handle it once at the source via a power conditioner suitable for the task at hand. The best/most respected ones also provide specifications that clearly indicate power/current delivery and noise filtering capabilities so one can make an educated decision about which one to try. Wires/power cords and many other esoteric tweaks seldom provide much of anything in terms of specifications or other measurable attributes that can be used to make an educated decision. Even if it turns out a particular gadget seems to work, why it does what it appears to do is still a mystery and the chances of similar results being repeated elsewhere in any kind of predictable manner is probably low.