I listen to more Heavy Metal music these days than when I was younger, when the music was newly released. For example, Black Sabbath's Heaven and Hell is in heavy rotation, especially with my RAAL CA-1a phone and the VM-1a tube headphone amp. My uber rock and roll setup. I never paid too much attention to it back in the day though it got a lot of radio play.
I remember playing some Ramstein when I lived in a rental apartment in Virgina 20 years ago. My upstairs neighbor got so scared, not so much by the volume, but by the vocalist.