Thanks for all the great help.
Based on what I have read here I might hold off on going to a tube power amp. I will try a tube pre amp first and run it with my current YBA 1 solid state amp.
I will also try with my Meitner mono blocks to see which I prefer.
I currently use a older YBA signature pre amp with seperate power supply I think when I purchased it back in 2002 it was 10k so I wonder at what price point I will need to be at to get a comparable tube pre