Newbiesti

I was fiddling around with the assignable knobs on my px3000, and with my dsp parameters set to adjust distortion, I twist knob 1, then knob 2 afterwards and a sudden blast of sound comes. It was extremely loud, and I'd like to know if any other parameters could potentialy blast high sound, so I can be aware of it. It was definetly enough to break a headset or speakers, or even worse hurt your ears. Thanks.