like many who have responded, i didn't use to believe, now i do, but don't know how a power cord could possibly make a difference. But it does, more than speaker cables or interconnects. In my system, my CD player (Marantz SA8005) and my then preamp (NuForce MCP 18a) responded big time ti Nordost Shivas, then even more when I upgraded to Vishnus. My amps (Bel Canto ref 500Ms) showed much less improvement, but did improve a bit with either Vishnus or Acoustic Zen Tsunamis).
I cannot understand it, but here is my theory--don't think of the power cord as the last six feet of electricity coming into your system, think of your system being slammed back and forth 60 times a second as the current alternates. This is violent, with magnetic, thermal, and even kinetic ramifications. 60Hz seems fast, but in terms of sound waves of 15-20kHz, 60hz is s l o w, plenty if time to make mischief. The poor component has to get a hold of this AC and feed it to a transformer to convert it to DC. So anything the last six feet does to the juice will alter the task ( for better or worse) that yhe component must do. I could be way of base here but it helps me justify the money i've spent on power cables. 😊
I cannot understand it, but here is my theory--don't think of the power cord as the last six feet of electricity coming into your system, think of your system being slammed back and forth 60 times a second as the current alternates. This is violent, with magnetic, thermal, and even kinetic ramifications. 60Hz seems fast, but in terms of sound waves of 15-20kHz, 60hz is s l o w, plenty if time to make mischief. The poor component has to get a hold of this AC and feed it to a transformer to convert it to DC. So anything the last six feet does to the juice will alter the task ( for better or worse) that yhe component must do. I could be way of base here but it helps me justify the money i've spent on power cables. 😊