A great deal of angst can be had when it comes to the proper placement of cables.
The worry is getting audio cables too close to noisy power cables and vice versa.
Truth is I have never found this to be a problem. Yes, my OCD gets the better of me when I see a tangled mess and yes, my system seems to sound better after straightening them out. I suspect that’s more psychological than practical.
Truth be told the psychological is every bit as important as the practical. It all has to do with mood. If our mood is good our music digs deeper and resonates more.
Like having the lights on low, I think it’s every bit as important to clean up the cable mess as it is to make neat the entire room.
It simply sounds better.