After many years of performing live I have experienced the best and the worst when it comes to live sound production. Having a great sound in the stage monitors as well as the front of house speakers can absolutely make or break an event. How many concerts have you been to where the vocalist might as well have been singing 'la la la' because the lyrics have been totally unintelligible? Have you ever come away from a concert with your ears ringing because the sound was too loud or not balanced properly so some notes just stuck out louder than others and made you wince. It's a well known fact that if a performer is not comfortable with the sound that they hear on stage then they will almost certainly not give their best performance. A sound technicians job is to make the performer feel totally at ease and confident that their music will be conveyed to the audience in the way that they want it to be heard.