If you can find a used Audioquest Thunder, that would be my pick. I never believed in power cords other than having at least a proper gauge to provide enough current until I tried the Audioquest Storm series. I too couldn't believe that a power cord could make any difference. I was wrong. My experience with the AQ cords is that they lower noise. I would have been very happy not to drop $$$ on power cords but the right ones can make a difference. Also, if you are using a power conditioner like a PS Auido P20 or similar using something like the AQ Storm Series cords between your conditioner and equipment is a real plus. The very low impedance of a well engineered power cord with reduce compression of the sound stage in complex passages.