I live in a 50 year old house with 50 year old wiring. And yes, I was skeptical about power cords. I tried a couple when I was first assembling my system and wasn't too impressed. Part of my skepticism was an engineer friend telling me since my source power was crap already, that was my ceiling so long as I plugged into the wall.
That said, I decided to give a power conditioner a try (Isotek G2 mini sub) and added a couple of very inexpensive Transparent Audio power cables for my amp and DAC. All I can say is...WOOOOW. The low end had punch and clarity, the high end sweetened up and allowed the previously foggy midrange to present a very clear and very defined stage.
Different strokes for different folks. I don't think you have to go overboard with power cables, but I had great improvements with a relatively cheap investment.
That said, I decided to give a power conditioner a try (Isotek G2 mini sub) and added a couple of very inexpensive Transparent Audio power cables for my amp and DAC. All I can say is...WOOOOW. The low end had punch and clarity, the high end sweetened up and allowed the previously foggy midrange to present a very clear and very defined stage.
Different strokes for different folks. I don't think you have to go overboard with power cables, but I had great improvements with a relatively cheap investment.