I think it's hard to say which is better since system synergy comes into play.
What I have found is that with difficult to drive speakers which need to eat up quality watts and lots of it, I find a SS power amp gives me enough juice to get the dynamics right while the tube preamp gives me the lushness and 3 dimensionality in the soundstage.
I use an ARC 5SE with Electrocompaniet Nemos to drive my Thiel CS3.7s.
I also use an Ayon CD5S with Plinius SA Reference on a second system to drive the Lenehan ML2 Reference
What I have found is that with difficult to drive speakers which need to eat up quality watts and lots of it, I find a SS power amp gives me enough juice to get the dynamics right while the tube preamp gives me the lushness and 3 dimensionality in the soundstage.
I use an ARC 5SE with Electrocompaniet Nemos to drive my Thiel CS3.7s.
I also use an Ayon CD5S with Plinius SA Reference on a second system to drive the Lenehan ML2 Reference