As for the db setting displayed in rig balance I think Pauls answer (while correct) is way too academical. I think it is best to set the volumes of your presets to a rig balance level where you still have a little headroom just in case you need to turn it up just a bit. Don't forget you can still use the big main volume knob if your sound guy asks you to defeat the signal if it's too loud for his inputs. That's the way I do it and it works pretty well. The whole "rig balance" setting in the utility section is one of the most underrated features of the 11R, I think. It allows you to quickly adjust multiple presets directly one after the other while switching to and fro. You call up "rig balance", step through your presets, adjust the volume and when done you leave "Rig balance" which will automatically store all the adjusted levels in the respective preset. Just remember that the last level you have set will NOT be saved, so after making the last adjustment switch back to a preset you already adjusted, do not make any additional changes - and then all changes will be saved.