I had tried a number of power cords and I was able to hear differences, but I never heard one make what I would term a "big" difference. Until I heard a new type of power cord that uses bundles of carbon nanotubes from Intuitive Design. The differences I heard in soundstaging, bass, and detail were pretty amazing, like that of a component change. There is a review of ID's Chimera carbon nanotube cables here on the Gon.
Ever hear a power cable make a huge difference?
I just had to share this. I went to synergistic research the other day to get some cables re-terminated. I saw some power cords on the floor and decided to ask about them. Ted, said they were all prototypes, would I like to listen. He brought me into the demo room and played some great music. He switched out the preamp power cord for one of the prototypes and man was it noticably better. Then, he left and came back into the room with a big smile on his face. He pulled a cable from the back that I swear was just recently built. He confirmed that no one had listened to it yet. He put the new power cable on the preamp and...................NO WAY!!!!!!!!!!!! It was unbelieveable what a difference I heard. I could not believe how much bigger the sound stage grew, better focus, detail, and faster tighter bass. I had him switch the PC in and out because I just could not believe what I heard. Then he said "lets make it better." He brought it to his Tesla machine and gave it a quantum tunneling. He put it back in the system and to my surprise it was un believably better then what I had just heard. It now made the whole system easily sound 3 times as good. I just could not believe my ears. Then I had to know, how much could I get this cable for. I would think at least $2000 if not $3000. Nope, this will probably go for $500. Well Ted, sign me up for a few of those bad boys.