Tbg,
no I haven't heard the Ypsilon gear but other people that I know and trust their opinion are not that impressed. For example an ex-Wavac distributor told me that the Wavac PR-X2 was clearly better preamplifier than the Ypsilon pre when they compared them a couple of years ago.
If you consider the fact that both Tidal Preos and Sovereign Director are miles ahead of the Wavac PR-T1 (I heard the differences between the Preos and the big Wavac with my own ears) then you understand that Ypsilon are not up there with the Tidal amps.