I've recently tried both the -21db and the -50db "rock and roll" Hearos,and while they do help me to be able to distinguish vocals during practice,i am still finding my ears are ringing after. Am i doing something wrong? Our practice sessions are usually between 2-3 hours.
It does seem like i have to shove the durn things in quite a ways to seal my ear cavities.....
Someone else in this thread also mentioned the possibility of hearing damage through bone conduction.
Although 40 Decibels less impactful than sound through the eardrum, it can still mean that 80 Decibels enter the hearing system despite the earplugs, during a loud concert.
I got tinnitus from a gig while wearing 20 DB earplugs, so I have some experience on the matter.
