Like @grunge1000 , I was skeptical of how power cables could affect the SQ of a system for the first 2 decades of being an audiophile. Everyone can hear the differences in components, and intercommects, and speaker cables. I couldn't understand why power cords would make a difference. I even tried switching out power cords, and I didn't hear any difference. However, many people commented about the effect of power cords on SQ, so I tried upgraded power cords ($100-$300), and I heard no difference. However, just last month I tried markedly upgraded power cords ($2000+), and I easily heard a significant difference when plugged into my pre-amplifier. When I plugged these cords into my amplifier, the difference was not obvious. Consequently, I now will have to agree with @kennymacc that power cords can make a difference in SQ, but not always for every component and not every power cord. The most prominent improvement in SQ that I heard was when used into my pre-amplifier. As for which power cords? I would have to say that it's like interconnects: trial and error is the only way to really konw!
which power cable and USB cable for my Innous Zenith Mk3?
had a chance to grab a used Zenith MK3 at a crazy good price
this thing kind of looks and feels cheapish but no worries, not unexpected and did not buy it to look good in a rack
Im getting the impression it would benefit from a good power cord and USB cable
would like to keep each under $500
any recommendations from Zenith owners would be appreciated