I have a Blue Circle balanced power supply, but wanted to see what Bybees and NITRO power cable could add... So, I borrowed a friend's Bolder Quantum power strip (with 2 Bybees), and plugged my Blue Circle into it. All of my components are plugged into the Blue Circle.
Well, at first I thought that the music lost a bit of energy. Then I remembered that cleaner power can sound like that due to the loss of treble hash. I listened more last night and this morning. I am hearing a lower noise floor overall. Soundstage is more 3D and realistic. Small details of vocals and instruments (e.g. harmonics, inflections) are also more apparent. There is a sense of purity to the vocals and instruments and I find it easier to understand lyrics! Plus bass is definitely tighter. In short, coherence and musicality took a definite step forward.
Previous listening tests reported by others did not note additive benefits when pairing the Quantum with a balanced power supply. I've heard benefits though... you never know till you try.