Originally posted by blueeyedboy:[..]
I never do, but I can tell you now that I'm middle aged, I can see it starting to take its toll. I always loved it loud, now I'm finding that I need loud to be even louder.

I have those musician style ear plugs, like Alvin posted. They lower the volume but the music sounds the same. Although for London 4 I only wore them for a few songs.
I haven't had any ringing in my ears after any loud event though, 2 F1 races (1 race and 1 full weekend) and multiple airshows.