see i was just unsure because i was told before that you go by your peak. so right now my amp is set on a 42hz tone(previous box peak at 42)... how much of a difference do you think it will make after i reset my gains with a 50hz tone? i know it takes more power to produce spl @ low freqs then at high freqs. and 42hz - 53hz(im using petey pablo-vibrate *53hz for comps now), seems like a pretty big gap.