Ineteresting question,I would say it is very much related to what i am playing so it varies ,but the dork I am I often grab my db meter in the drawer next to me when I feel its rockin and it is often 80-90db so i guess increase lol
Volume Increase of decrease as system improves
Almost all of us have been on an upgrade journey with our systems. My question is as your system has gotten better has the volume at which you listen gone up or down. My personal experience is that it has gone up. I think because there is less distortion hence less fatigue at higher volumes.