I own two different ProAc monitors [1SCs and Tab 50 Sigs] and run them with different tube preamps to a solid state amp. I like this combo very much.
However, many people seem to think ProAcs perform best with an all tube set up, specifically Audio Research gear. I heard this combo at the last CES in Vegas and it was quite nice.
ProAcs aren't a particularly difficult load to drive, but they aren't easy either, so with the exception of low powered SETs you should be fine with most tube amps.
It really depends on your musical tastes and preferred listening levels.
However, many people seem to think ProAcs perform best with an all tube set up, specifically Audio Research gear. I heard this combo at the last CES in Vegas and it was quite nice.
ProAcs aren't a particularly difficult load to drive, but they aren't easy either, so with the exception of low powered SETs you should be fine with most tube amps.
It really depends on your musical tastes and preferred listening levels.