Just to share another one of the Positive Feedback review. Two reviews in a row is ain't bad at all. No affiliation, just a happy customer! of course, YMMV....
Each time I added a Signal Cable product to my system—first power cords, then interconnects, then speaker cables—the level of depth, clarity, and spaciousness improved. To bring this review full circle, I removed the Analog Twos and reinserted the Siltechs. While the excellence of the Double Run speaker cables remained evident, I missed the sense of ease the all-Signal system possessed. It was subtle on first listening, but unmistakable over time. The desirability of using only one brand of wire is questionable. Cable matching involves impedance issues, and the use of the same manufacturer's products will usually ensure that all of your wire is speaking the same NHHlanguage." On the other hand, not all manufacturers are equally good at making all types of cable. In this case, there was no question that all of the Signal wires synergized beautifully, both with each other and with my equipment.
ps: the other one on MagicPower cord link: