I'm curious. What is your "normal" listening volume?

65-90 - Note that I bought a few meters and use my phone and they all read different, by quite alot.  The ones I got were phone apps and $5 to 30$ units, so not high end calibrated devices.  I returned them all since I did not know which one was accurate.  

At my listening chair 66 - 72 db. The chair is 9 feet from the speakers

75 db +-10, more or less. Maybe some peaks into 90-95 db when I play large scale orchestra music, but nothing louder than that. I use the NIOSH SLM iOS app to measure.

+/- 75 db

80-90 dBa is where it’s at.