Personally I think the best rating you can get for a loud ass rock show is a noise complaint! Metallica crushed their 16-song set at the Download Festival last night at Donington Park with noise complaints coming in from 15 miles away! Strong winds and a speaker upgrade have been mentioned in the super loud Metallica set. Strong winds? RIIIIGGGGHHTTT. Sound upgrade? Hell yeah, how about 288 speakers to pump out the sounds of Metallica!