Does Power Cord Require Burn-In To Sound Good?


I recently bought a new power cord but there isn’t much difference in sound quality between this new cord and the previous Wireworld Elektra 7 which it replaces. The cords are used on the DAC.

Any ideas if the cord needs to burn in to open up and sound better? It currently has about 5 hours on it and I think I prefer the sound quality of the previous cord which costs 10 times cheaper.

Any thoughts appreciated.
ryder
Hi, i think if you don't hear any good things from this, it's either because it doesn't match the unit's sound character (and maybe technical aspects), or because, you have already reached the maximum possible improvement a power cord can give to the unit, already with the previous cord! 
Roberjerman is the only poster so far who has contributed anything remotely useful to this question. You guys really need to study some basic physics, along with ohms law and a chart on wire gauge and it's resistance rating per 1000 feet. Then measure the length of a typical AC cord supplied with most audio gear.
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.
It could also be, that the very air in the room, requires a burn in period. Both to clearly transmit Bluetooth if you are using it. And also, importantly, to transmit the sound from the speakers to your ears.