Hi. Ive been searching for some explanation of what is probably basic knowledge but Ive not found it so here goes. I run an Echo Audiofire soundcard with Krk monitors connected on output 1/2. I run Logic with the logic mixer master fader at 0 and choose my monitorlevels with the masterfader in the Echo software mixer. Up until now Ive had the rearmount speaker level adjust knob to -30 db on both speakers and the nominal level to +4db in the software mixer. When Ive needed more volume I have adjusted the rear knob on the speakers. Is it better to set the speakers to 0db and change the software mixer to -10 to attenuate and control everything from the software mixer main fader? By doing it this way I get a bigger range of choices of volume easily controlled from the software. Can someone please just help me understand these different options and what the +4/-10 options really mean and the best way to set up this system? Thanks!