How does the sound change as power cables burn in?

Initially a new cable will sound dull/flat, then it will get bright/strident for a number of hours as it opens up. Finally things with smooth out.

Regardless, you can pretty much tell the sonic signature of significantly different cables right out of the package.

All horse crap when thinking you hear a difference from new to burnt in.

Having the same cable, one with no hrs. And one with 10 billion hrs and I did an A/B Without the listener knowing what cable was what he would not be able to pick out the new cable @ 80% of the time.

If you can you get a free Charlie Brown CD.

Most of this hobby is head games and I have played them many times with wire.

Oh. Here we go again.......

Cable threads are better than free admission to an amusement park.

And there's no long lines with smelly people standing alongside you.

depends on how long it takes for your ears to acclimate to the sounds of different components or different cables...your ears will ajust to the new sounds over time...