"The Hitchhiker's Guide to the Galaxy notes that Disaster Area, a plutonium rock band from the Gagrakacka Mind Zones, are generally held to be not only the loudest rock band in the Galaxy, but in fact the loudest noise of any kind at all. Regular concert goers judge that the best sound balance is usually to be heard within large concrete bunkers some 37 miles from the stage, while the musicians themselves play their instruments by remote control, from within a heavily insulated spaceship which stays in orbit around the planet-or more frequently around a completely different planet....
Many worlds have now banned their act altogether, sometimes for artistic reasons, but most commonly because the bands public address system contravenes local strategic arms limitations treaties."
We've all been to those concerts, half way through your ears bleed, and you pray the Costanza prayer, "Please God make it stop". By the time you're home tinnitus has set in and your ears ring the rest of your life.
The 2 photos above are from Beatles concerts at Shea Stadium, the first 1964 the second 1968. Look at the sum of the amplification the band provided, and compare it with the parade of trailers modern concert tours require. It's a wonder anyone at Shea heard a tune.