Try listening with & without power plant; I think your system will be very revealing of the effects, probably even more so than my system. For mine, after dedicated lines, I ended up selling the power plant in favor of being without it & have never turned back.
As for power cables & wiring; when I got dedicated power, I experimented with running my entire system on generic run of the mill cables & then all high end power cables. The difference is nothing short of amazing; I cannot explain why, only that I definitely hear a marked improvement w/ high end cables. Cleaner sound, lower noise floor, much improved three dimensional holographic imaging, less fatigue & the list goes on . . .
The other cable I upgraded to high end was speaker cables; they made almost as much if not more improvement than power cables did. Upgraded interconnects made less improvements for my system than did the aforementioned; I stuck with mostly silver on my single ended IC’s & copper for my balanced IC’s.