Going to take the plunge on JM Lab Micro Utopia Be

I've been auditioning a ton of speakers of late and seem to have finally met my match, the Micros, which I really love. they seem the most appropriate for my central listening tastes, which are typically electroacoustic and electronic. Very few speakers I heard covered the range of these on this music and yes we should buy speakers first and foremost to fit our music.

What I'd like to know now is what kind of amplification should I consider. The music I listen to covers a lot of wide frequency ranges--sometimes quite abruptly. I need equipment that can take the sonic punishment. What, dear folks, matches up best with the Micros in your opinions? I've read about the YBA's but I can't get them locally (I don't live in the states). I'd probably have to buy them on my next trip to the US or find something else. Any other recommendations? I've heard them very well with a Musical Fidelity setup, quite nicely with the AVI integrated, and today witnessed them with Chord Pre/Power. The dealer said that an older combo with Mark Levinson 28 and 29 would also be a good one. Any thoughts? thanks in advance.