Decibel question

I have seen some posts about listening decibels. I have a Adcom 500 and Infinity Kappa 8's. At home I can only go up to 80 decibels before the warning lights go off. I was at a Uriah Heep show last night and turned on a decibel app on my phone. It didn't go above 90. I love the sound of my system especially after getting my Thorens TD160 turntable tuned up. Am I missing something not being able to listen to 100 plus? All of you on this site seem to be so much more into gear and equipment. I thought I had a handle on things. At 90 last night my ears were hurting and I couldn't talk to my friend next to me. I would really appreciate any of your expert opinions. Thanks again!!!