@bigby Power cords don’t make much difference in my system because of the components.
I cannot tell whether you are implying your system is too good or not good enough to benefit from cables. (looks like a very nice setup to me) But either way, I would suggest you try one really good cable on your power amp and then make the call.
I found power cords made a bigger impact on my system than either ICs or SCs. What goes down your speaker cables is sourced from the mains. The input signal dies at your first amplification stage. The cleaner the AC that enters your amp, the better your sound.
You’ve spent money on your system, don’t keep it back by cheaping out on PC’s.
When I tweak amps, I always spend most of my effort and resources on ripple/noise filtering on the power supply. I’ve always found that to be the best bang-for-buck. A good PC enhances your amplifier's power supply ability to produce a more ripple and noise free DC supply, whether you have a budget system or a cost no object system.
