B & W N802's Vs Revel Studios Vs. Mezzo Utopias


I currently own B & W Nautilus 802's and wanting a change. I am considering the Revel Studios and The JM Labs Mezzo Utopias. I know the Mezzo Utopias are being replaced by new version and you can buy them at a great price. Am I making a mistake by selling the 802's and what do you guys think of the Revels and the Mezzo Utopias? Your input would be appreicated.
lbsilver
Has anyone ever heard a tube pre or tube amps with the Salon or Studio's? I wonder if the presentation would be less cool on top?
I use them with, among other combinations, the SF Line3/Power3 combination and do not find them cool at all. However, I have used them with SS amps/preamps that do make them a bit cool but those amps do not stay in the system.
I haven't heard them with tubes, but I have unique amps from Harmonic Precision which are designed to be very tube like. They are over 97% efficient with very little heat. I must admit that despite tremendous skepticism on my part they imparted a warmth to the studios I had not heard previously with many other high amps including ML,Spectral, and others.