Does Power Cord Require Burn-In To Sound Good?

On a DAC, give it a couple of weeks, on 24/7.

Typical argument from someone who hasn't done the experiment but knows that it can't have an effect. And always brings up a cost. Don't understand why it bothers you so much.

No hobo, stats and specs are only that. For one to decide if any cable is an improvement, one needs to listen to it long term to decide, In high-end audio, everything makes a difference, good or bad. One just has to have the time and patience to make that determination. If you are convinced that is not possible, so be it, however it is not the last word.

Nope, no need to do all that. just from the wall to your component. Try it you'll like it. Even though you know you won't.

" basic physics or true science" - do not solely dictate the sound of a component. Sure they are required for a desired function, however it is their ability to be pared with other components to produce ones' preferred sound. For example, let's compare 2 amps with the same specs or very close. Logic says they will sound the same, but do they? Maybe one has better quality parts, uses a different grounding system, better damped enclosure, better wire, better tubes, etc. Now, to some they might sound the same, to others, not so much.
Why are the ones that hear the differences dissed for that?
Is it because they are not part of the "good enough for me crowd"?

Remember  b4icu from a couple of years ago, he claimed he could determine the "correct" speaker cable for your system by using the amps damping factor and the speaker model. He was a champion for using 0 gauge cable. Practical, attractive and easy to install. He could be the kenjit of cables, isn't that wonderful!

" There isn’t any physical process that causes any modifications to the marcroscopic or microscopic structure of a cable during what you call ’burn-in’ .Cables burn-in does not exist."

-- Ok, we finally got the word, no sense in talking, debating or experimenting anymore. I wonder what other absolutes we might be enlightened to, can’t wait.

If using different power cables yields no audible effects. Why do the makers of most high-end gear provide IEC receptacles to provide the opportunity to change power cords at any time?

" So they can make one model for all markets."

- No, don't buy it. Different voltages in different countries can't be remedied by power cords only.