I have never read through this thread because I'm afraid of it
About five years ago we went to a magician show at the summer shows in the next town. The companion music was really high. Not bass rumble but very high tweeter frequencies.
My brother in law offered me ear plugs but I turned them down because I thought I would hold up just fine.
The day after, not only tinnitus, but dizziness when turning the head. It took several months to disappear, but I still have a slight tinnitus that I deal with quite well and I try to ignore it.
What pisses me off the most is that it wasn't at a concert by one of my favorite bands, but at a school festival of a magician show.