I’ve used Acoustic Zen, Nordost, and Morrow power cables on my components. All three improved the sound noticeably on my Cambridge Audio 851n streamer/DAC and my Oppo 83 which I use for SACD. A more subtle improvement on my Bel Canto PRE5 preamp, and no difference to speak of on my Bel Canto 500M monoblocks. In the end I kept the Morrow MAP3s and sold the others. They may have sounded very very slightly better than the Morrows, but the Morrows are so much easier to snake through my cabinet. My theory is that less sophisticated power supplies in components react more to upgraded power chords.
