Recommend a Pass Labs amp for Dunlavy SCIVa

I have some really nice dunlavy scIVa's and my tube amps are not cutting it.  I have tried my McIntosh MC 60s and my citation IIs on the dunlavys and they just sound very anemic.  Talked to some friends and I have been advised a nice solid State amp will do the trick.  
I want to go with something in the pass labs used market and was hoping for some advice on what amps to look for and why?
Preamp wise I have the following to choose from.  A TRL, the dude, pass labs XP1, juicy music blueberry, and a very good citation I unit.
Thanks in advance.