@kjl1065, I had a Qutest before I upgraded to a Chord TT2/m scaler combo. The Qutest is a great little DAC that I wish I still owned because it’s such a neat little piece of audio kit. Have you tried using an aftermarket power supply for your Qutest like an iFi Elite X or an Sbooster? I found that it made a discernible difference in sound quality over using the stock Chord wall wart because it gave the music a feeling of less digital glare and a more analog sounding presentation.
I like trying small tweaks first in my setup as opposed to looking for a several thousand dollar electrical box to solve all of my sound quality issues.