Hello! I am new here so please be patient with me . I have been searching like a crazy man for answers and I can't seem to find them. I really need help from someone to explain how to set volumes and gains properly for recording guitar. I have a Focusrite Scarlett 2i2 3rd generation, two Presonus Eris E5 studio monitors and a windows PC. From my understanding, the sound goes from the guitar to the audio interface (where I have a "gain" knob that can amplify the sound in analog), then to the DAW on my PC, then comes back to the audio interface and finally leaves the audio interface (where I have a "monitor" knob that just sets the output volume in digital) and goes to the studio monitors (which have their own "gain" knobs that can amplify the signal in analog). My biggest question is, how do I know where is the unity output on my Focusrite "monitor" knob. Is it at 100%, 50% or something else. I tried calibrating my studio monitors with a decibel meter from the listening position, but the problem is I set the "monitor" knob on my audio interface all the way to 100% thinking this is unity output, but I am not sure anymore. From my understanding I have to generate a pink noise on my DAW at -20Db, while my interface is at unity output. Then I calibrate each monitor so they output 80Db at the listening position. This seemed logical at first, but now, when I try to record my guitar, I have to keep the "gain" knobs on the inteface at the lowest and the sound is still to loud. I think this is because the 100% "monitor" knob is not unity output actually. I would be so greatfull if someone could help clear things up a little bit for me, because I am officialy lost )). Please ask whatever additional information you need.