I have a Richard Grey power co. & it made a siginicent improvement for my system. As to the effects of power cables I aggre with Gallaine, all of these issues are system dependent and very subjective. I auditioned several power cords with my Power CO. & ended up with a Straight Wire, the same may not work for you. Just experement until you find something that YOU like.
Need Advice:Richard Gray and Power Cords
Is it overkill to replace the power cord on the Richard Gray 400S? Will there be any tangible improvement? If so, what reasonably priced power cord do you recommend?