I'm just curious, can someone explain your gain settings on a mixer's preamp section vs. the "level" (volume) setting? It the level passive attenuation while the gain is true amplification? What confuses me is the Level goes from -infinity (no sound) to 0 in the middle which I thought would be full level... but it also goes upto 10 leading me to believe that's some sort of boost? That's on even the line levels though as well. Gain is only present on mix preamps.