Yes I have noticed a difference, I found that with my xlo reference pc on my amp it made an audible difference the background noise was quiter, but on my cd player it didn't seem to make any difference at all. I then put a locally made Cawsey pc on my cd player and I did hear a difference. The sound seem to open up a bit more, it was a bit more airy. Sorry for my discriptions, not very good at discribing what I hear, hope this is of use, cheers
Do power cords make an audible difference?
I recently discovered the inexpensive Pangea AC-9 power cord. It was so inexpensive I decided, just for kicks, to buy one for my sacd player and my integrated amp. I was extremely doubtful I would hear any difference at all. I plugged them in, turned on the system and I was surprised. I immediately invited a non-audiophile over for a listen. She had only heard my system for maybe 30 minutes with the old cords and I asked her if she could hear a difference. After listening to only two tracks she said "it sounds more clear". This is exactly what I had thought. I also noticed the sound stage seemed bigger. Now, it's not A huge difference but it is noticeable to the casual observer, so it is significant, which is more than I hoped for.