A single ended triode (SET) tube amp will put out about 7 or 8 watts per channel max.

I like the feedback that these speakers are getting, at the rated sensitivity of 89-93db SPL they are kind of at the edge for being usable with SET amps.

My sure alternative is to go for a back loaded horn rated at about 97db SPL but if I could use the MT60 it would save me a lot of work and would cost about the same.