I'd swear I already posted this ... but I can't find it anywhere I have a gig coming up fairly soon - a very loud 3-piece punk band. They played at an outdoor festival I did this fall. At that show I had no guitar in the mains - a finger stuck in one ear - the other ear turned away from the stage/speakers. The other hand was on the mixer, or both ears would have been corked. I just tried to balance everything else to the guitar amp. The upcoming gig will be indoors at a college student union. I have an SPL meter, and I'm not afraid to use it. My question ... where do I draw the line and ask them to turn down the guitar amp. How loud too loud? I don't want the dB police knocking on my door the next day. FWIW, earplugs will be available - but it seems silly to expect folks to wear earplugs in order to listen to the band. Maybe I'm just getting to old for stuff like this - should I stick with guitar-strumming folk singers? I suppose a question about how to monitor this sort of stuff for mixing might be in order too. I have an in-ear/ear-muff combo that provides great isolation - I use it when setting up for recording. I'm wondering about feeding that with a flat omni so I can control my listening level. OTOH - if everyone else will be wearing cheap foam earplugs, maybe I should wear the same thing so I know what they're hearing.