About six days ago, I was able to pick up a second Black Sand Violet Z1, which I've been using to power the STEPS PS that I use to power all of my amps. The first Violet has been providing AC to my source DAC for awhile now. Another layer of grain was removed, and the background became even quieter. As each of my amps has been permitted to settle in with the new PC in its power path, the lifelikeness of the sound from each has taken a noticeable step up. Going from a Volex 17604 to a Violet on the STEPS took a different settling in path than making the same PC change on the source. On the source, the high end energy started out a little too much, and that receded - leaving a final balance which sounded gorgeous. On the amps, the high end started out too little (a noticeably darker sound) and over the week of use, it came back to where I just LOVE it - only cleaner, with noticeably lower glare or artificial sheen. Across the acoustic spectrum, the sound is tighter and the details are more easily there for the taking - but not demanding attention, which, for me, is the Violet's characteristic contribution - imparting a distinctness to each musical voice and simultaneously a coherency and organic wholeness to all of the voices comprising the music.
Adding a second Violet to my audio path was an experiment for me. I was not sure whether it would be "too much of the same good thing". In my audio path, it was not. For me, with a second Violet in my rig powering the amp, the resulting sonic changes have moved my listening experience even closer to the people behind the music and their human expression in the music.