I have a phone app and an old Radio Shack Db meter. The Radio Shack seems to register higher. I usually land somewhere around 80dB +/- 5 Db. like @mulveling stated there is a point where the music comes alive. Sometimes that is more like 85 Db for me. And as resolution of the rig has improved lower levels can be pleasing too. BUT sometimes the music just needs to breath. I don’t drink alcohol when I listen to prevent stupidity with loudness. Age 70 with hearing aides.