From personal experience, the Super Alnico Monitor and the Compact Alnico Monitor do complex music extremely well. His HO's which I haven't heard would no doubt be a shoe-in too. The Alnicos present the music with such wonderful texture and layering, and their soundstage is deep and wide with a real sense of the venue the music was recorded in - "you are there" best describes their presentation. As far as suitable amplification generally goes; SET, SEP, PP, Pure Class A, A/B chip, and Class D do the best. I say generally, because there are always exceptions to the rule.