It's not about the cables, they deliver a cleaner signal free from hums and various other crap that mask the original signal (the more expensive ones do it better), but they don't deliver a stronger current. It must have happened by chance right at that moment (this is my unprofessional opinion)
I put a lot of cables and other accessories into my system that affected the sound, but I repeat for the hundredth time that upgrades do not affect all headphones the same (someone must think I hate Arya, but honestly I wish they were upgraded with each upgrade), it's safe to adjust (Nowadays, the focus is on releasing as many different sound adjustments to the market as possible)
So, from the "thin" but typical seductive Senn. bass, up to the bass that greatly surpasses the one on Arya, and I don't want to go into details about the structure , dimensionality and decay of that bass (since all that doesn't exist on Arya, where it is only solid and fast)
There are cables that emphasize a certain frequency area, the best quality are those that equally transmit as many frequencies as possible and protect that transmission well from external influences.
And the power supply, which directs the current into a "linear flow" and protects that transmission from external interference (it doesn't matter what kind of cables are placed around the house and to the house, but the most important is the last one that plugs into the device. Of course, replacing those bad cables through the walls also had an impact, but that is already a step into professionalism and requires a lot of money)
I got a little carried away, my intention is not to educate, but to express my opinion about the influence of cables on your problem.
I hope that you have solved it by now, and that you are overall satisfied with the sound