lolI never measured until I saw this thread yesterday. That session averaged 71 and peaked in the low 80s. That was my typical listening volume. I'll do a wife's not home measurement next.
Having recently broken down and gotten a smartphone, I got an app to answer this question (SPLnFFT). An early morning listening test playing M. Ward's A Wasteland Companion yielded (dbA):
Min: 28.6 Leq 57.2 Max 67.3
...
These really are typical listening volumes for me, at midnight or later, when everything's quiet. Sometimes during the day I listen a fair amount louder. I'll tell y'all how much louder next time that happens.