I have not. But I really am not hearing any noise problems. I am just not digging the “over processed” sound that I am hearing. I don’t think a power supply would help with that. But hey, what do I know.Has anyone tried something other than the SMSL P-1 power supply .
I have a different problem, I snagged a P1 on the auction site, now waiting for a cheap M8 to show up somewhere, wonder if the M8 will improve the P1
Maybe I can send you mine. Better with Tidal Hi Fi IMO but still not there.