Agree with @audphile1 . In my case, just for fun I tried substituting my very expensive Audioquest Dragon cord feeding my Torus RM20 with the stock Torus power cord. The Torus in turn powers my entire system.
My initial impression was, it sounds much different, and actually not bad at all! There was an immediacy and crispness that became more apparent with the stock cord. But, the major difference was that the soundstage was all on one level, with less dimensionality to vocals and instruments, less air, and less of a holographic presentation.
As stated your results may vary. Of note, Torus told me they thought the cord from the Torus to your components matters more than the cord from the wall to the Torus, but as always, they said listen to your own ears. Great advice.