It used to be that a modeler's sound was pretty much the same whether you played at quieter volumes or if you turned up loud. The saying was that you could get the "tube like sound at low volumes." This was mainly true. Turning up gave you the same thing, just at louder volumes. Feel stayed pretty much the same. I've been playing my AxII at quiet, kids sleeping next door volumes, to loud drummer volumes. I have to say it's the first modeler that the dynamics and feel just get so much better as you turn up, you can hear the little nuances that are imperceptible (probably there, but not as audible) at lower volumes. Turned up, I can change so much with my volume knob, picking dynamics, and the feel is so much better. That subtle break up with light picking stands out better at higher volumes. The feel is just like a loud tube amp at that volume. The tone and dynamics are likely there at low volumes, but at whisper volumes a lot gets missed by the human ear. Turn it up and you'll be in another world. Just a PSA, if you're only playing your helix, amplifier, ax, or kemper only at low volumes, you're missing out on something special.