Nope, I have not heard the PHY, (at least in detail to comment), there was too much going on and I did not hat time for that.
One of the things that I learned though is that the ellis are very sensitive (as any speaker) to room acoustics. With the ellis the situation is even worse (I guess that due to the high dispersion of the Hiquphon).
First we tested the speakers on a small room, close to the wall on a similar condition that the one I have in my home, the sounded to me same as in my home.
Then we moved them to a much larger room and boy, the sound image, and space they gave was a league ahead.
So, beware of room acoustics they are VERY important.
Salva