McIntosh and "hard" music?

I've been interested in Mac gear lately, and am considering picking up a piece - I'm MC150, MC202, MC252, MC275, or MA6900 at this point. I've only had the chance to hear the MC275 monos, MA6900, MA6300, and MC302 very briefly in showrooms. I found they have a really smooth, easy to listen to sound, and I can see the appeal, but maybe lacking too much in detail/focus/separation for me. I might be able to get past that, but every time I hear this gear or read a review the associated music is somewhat soft and romantic -- classical, jazz, opera, acoustic/vocal oriented stuff. I like a warm, emotive sound (Sonus Faber fan), but I also listen to a lot of rock, electronica, R&B, hip-hop (*gasp*).