Audioquest - NRG-1000
AC power cables have been the subject of debate, fanaticism, accolades, and scorn. How can the last few feet make any difference? It’s actually the differences that they don’t make which are so profound. Properly designed power cords Do No Harm! to the original AC waveform. This would seem rather obvious, but it’s not until you audition a high-performance power cord for the first time that this becomes obvious.
Read more: http://www.audioquest.com/power-cables/nrg-1000