I have to disagree that components equally reproduce music of all genre. That is the ideal, but in reality it is not true. I used to love electronic music, and I went out auditioning with several electronic music CDs. Like Enigma. I optimized them with speakers and electronics that added to the ethereal nature of the sound. This had drawn me to planar speakers and supporting electronics. But, all the other music sounded worse and worse. This just one of my attempts to use a small selection
I later optimized on details... and ended up with an incredible system that showed every flaw and made clear the mastering and ambience of the recording... and took the life and soul out of the music... But I could hear every detail in the music.
Ultimately I spent years tuning my ears to real live acoustic music and used that as a reference, and finally all genre got better at the same time and the soul of music and emotional connection came back.
Anyway it may not be on purpose, but lots of different equipment makes certain genre sound better. B&W and MacIntosh, with their real heavy bass and midrange let's Ozzy's "OH GOD NO!" followed by an incredible rush of bass and midrange overwhelming. But put on a string quartet and you are missing the details.