I recently demoed a couple of power cords that were built using the same construction, however one with the Oyaide (007 I think...the red one with the gold positive and negative terminal and the silver? ground) and the ultra expensive carbon fiber Acrolink and they did sound quite different. Although, they used the exact same wire and same construction method the Acrolink cord was a 7 strand per post vs. the Oyaide cord which was a 3 strand per post cord. I don't want to retype my review so I will cut and paste a mini comparison I posted elsewhere. For sake of the comparison the Oyaide cord is called the Thunderbird and the Acrolink cord is called the Windigo.
I demoed the Thunderbird as well as the Windigo cord that others have referenced above on my Consonance Cyber 800 monoblocks. Oh man, they both made big sonic impacts on my system.
The Thunderbird power cord caused an increase in soundstage, a blacker background, and an increase in the separation of instruments. I found it made my digital system sound more natural, accurate, and just caused an overall "tube" sweetness. I also found it to lean slightly to the warmer side of neutral.
The Windigo sounded quite different on my amps than the Thunderbird. It took a black background, separation of instruments to another level yet. This cord is definitely more neutral and dynamic.
I hope I have added a little something.
Thanks,
Mike
PS. I have some other emails that I sent regarding these cords and the differences that I can post...but I just don't want it come off as an add in any way.