Tube or solid state

Both. Tube preamp and SS power amp. 

My Pass XA-25 has a "tube-like" sound in that it's capable of making me like listening to it. Even when it's off it puts out a vibe, as does the tube Had amp as that thing is beautiful to look at. The Pass amp looks like an industrial slab, but it is easier to dust.

Don't forget to include hybrids. Clean background and oomph can come from SS, but adding tubes on the preamp can be the best of both worlds. At least consider.

Go to

and scroll to the bottom. 

Tube monoblocks 

Tube preamp