In my main musical place("studio") there are two 400W speakers(and a 500W sub). The tops produce 123 Db at 1m and it's a rather "dead" room.
 
Often I need all the power when there's a band rehearsing and sometimes the singer needs a floor monitor to hear him/herself
 
 
I do have some costum made earplugs, but I hope I will be wearing some of http://www.atomic-gehoorbescherming.nl/?menu=article&articleID=22576363 as an extra.
 
 
 
Noisy buggers!

My favorite mentality is quieter is better. Turn everyone else down instead of turning the vocals up.

I know, the singer(s) know(s), the other ppl in the band(s) not.

All the details get lost when playing that loud.

Oh well ................