best 50 watt tube amplifier?

Mejames, as the Dunlavy's are not very OTL friendly, you will either need a "big" OTL, such as the Atmasphere MA2s or maybe the MA1s.....or....the Lamm ML1s. a friend tried the Tenors with the Dunlavys and was not satisfied with the dynamics (she switched to Coincident speakers since she loves the Tenors).

my first choice for your speakers and listening priorities would be the 90 watt Lamm ML1s. the Atmaspheres will work but i think the Lamm would be better.

Tube-Nagra VPA,Cary 805C,VAC 30/30 MkIII,VAC 70/70MKIII
Solid state- I agree with Tireguy Accuphase A-50V is the best 50W if not the best period.

Good luck on your search

I would like to buy another Grant-Lumley
Perhaps not the best but great sound.
I very much regret selling mine.

Joe Kelly