My experience supports what Jerry is saying. With some amps I have heard a noticeable difference upgrading the stock cord to an aftermarket model—not a huge difference but one “worth” investing some additional coin. However, an amp with a well designed power supply seems not to care about PCs. For example, I ran 4 different cables on my David Berning designed LTA UL+ amps and heard no difference from the stock cord. FYI power supply design is David’s forte and, when his power supply designs are mated with his ZOTL circuitry you end up with a great amp that doesn’t need an expensive PC.
What was the first power cable that you noticed a difference in the sound?
I have bought six or seven different power cords, none over $500 and have noticed little or no change in the sound of my system. All the cables are 12 gauge or bigger. Without talking about cables made with unobtainium, where did you start hear a difference.
Thanks.