I just installed the MCRU power supply on my system for the Qutest DAC. I had read a lot of different opinions about whether it made much difference or not. I’m sure it’s partially system specific. But on my system: Cambridge Audio Edge A amp, WiiM Ultra streamer, Rel sub, and Revel M126Be speakers, it made a really really obvious and powerful difference. After reading all the mixed reviews, I wasn’t expecting much and the change was not subtle at all. So if any of you are considering this combination, I heartily recommend it.