Philipwu, I am not sure what you are asking. I can confirm that in my system I heard a startling difference in sound. Whether others will experience such a difference, I cannot guarantee that, obviously. My guess is that most would hear a large improvement in sound, but you may or may not, or you might hear an improvement but think it to be not worth the money. All I can say is that if you like the differences HFC cables make, you will love these. And it will cost you only about $300 to find out. If you don't like it you can almost surely sell it used on Audiogon and get much of your $300 back. If you are completely happy with your system, great, don't buy one.
I have UR interconnects, U speaker cables, a URH power conditioner, and a URH power cord to the one piece of electronics that can use a standard 15 amp IEC cord. I use a Furutech 20 amp power cord to feed the conditioner. I use a high-end turntable, tubed phono stage, solid-state amp and preamp (they have a 30 MHz bandwidth), and single-driver speakers with a powered subwoofer.
Hope this helps.
