In Dwyer's "Today In Rock History" this morning, it was on this day in 1976 The Who headlined at the Charlton Athletic Grounds in England and put their name into the Guinness Book of World Records as the Loudest Rock Band EVER. Their set measured at 126 decibels... which is as loud as a gunshot or a motorcycle. Guinness eventually got rid of that category because they didn't want to risk anyone's hearing as bands fought for the title at their concerts. But a few bands have broken 130 decibels.
Volume that goes over 85 decibels will potentially damage hearing and puts you at risk for tinnitus, that constant ear ringing. These bands consistently hit those high levels and wore it as a badge of courage.