What is the sound level of Your Listening Room?

Witty reply: Gimme two Siri(s) and I'll let you know how out of phase I can get them... 

If you believe the science, the average background noise level in an urban setting is +/- 25 db.  Even standing in your listening room when you can't hear a thing.  Two reasons.  1) there is background noise below, or above our hearing threshold.  2) Our brains have learned to tune out a lot of the usual background noise as it has learned there is no significance to it.  

The sound level or my room is very low due to insulating and blocking off the window and because the room had acoustic tile ceiling and wallboard put up at some point in time so i got lucky with the room, no standing waves or bass peaks and dips.

@douglas_schroeder , irrelevant? I have news for you, noise is noise whatever the source. But, fortunately our brains can only pay attention to the loudest noise. It is called Masking. People who have tinnitus which bothers them at night will run a droning fan in the bedroom. It will mask their tinnitus. Listen to the background noise on a record between songs. It disappears once the music starts. It is being masked by the music. Unless you have jackhammers in your listening room any noise in the house, refrigerators, air conditioners, your kids, all of it disappears once the music starts playing. If you hear something just turn up the volume.
Having an absolutely quiet room would be nice, certainly could not hurt. But, it is not mandatory for the best performance. Look at all these people who prefer vinyl. It is horrendously noisy compared to digital. The noise doesn't seem to dampen their enthusiasm.