I have to agree that the among the very best in transparent interconnects and speaker cable… if you want neutral, is Transparent. But, you have to want neutral. The only power cord that was not as good on my equipment was the amp… and to be honest… I was not testing their power cord made for amps. So I have a Cardas on my amp.
Cardas seems to be similar across the spectrum (interconnects and power cords), only shy on details with the tonal balance towards warm side… bass heavy.
DH Labs… power cords not quit as good as their excellent (for the money) interconnects.
one thing that has always puzzled me is why interconnects, cables, and power cords of the same brand and level tend to have the same effect. Ok, cables and interconnects I understand… but to me power cords impart a similar change on a system.