Over the past 11 years of playing I've been focusing on learning to play well, since my old equipment was horrible I never took the time to learn about tones and all these different settings. I got a acoustic b450 and don't quite understand a few things... I can't just turn up my volume and play, I have to turn up the gain first. But if I want to play louder to fit in with my band I have to turn the gain up higher, then the volume will go higher, but sound some what distorted. Can someone help me understand this? Also what is this frequency/notch for? Thanks in advance.