Horn speakers are really bright?

Both systems are unnaturally bright. She has way too much breath in her voice and her "s" is way too sharp. This is an audio effect that many people mistake as detail and find attractive at least until it hurts. They also used too much reverb in the mastering. This is not necessarily a result of horns as I have heard them sound quite natural. Your systems are not well set up. Speakers that size should be much further apart and toed out a bit may not be as bright and in your face. It is not your electronics doing this. It is the set-up, the speakers and the rooms. You need to go to a small jazz club or somewhere you can hear an acoustic folk singer. Go to a Richard Thompson solo concert. Don't listen to me. I'm just another idiot with bad hearing.