I do sound and lighting for a church group on sundays and they are complaining about crackling in the speakers. I think its just the drivers in the speaker that are going, but they really want me to fix it. Is there any other reasons for this to happen? Also, since we put in the new sound board and eq, the sound seems to be quieter, i have to set the level for the wireless mic at max. Is it just me, or does the sound level drop like that from the eq? Or the eq isn't properly set up, I didn't set it up myself so i don't know. Any suggestion?