What decibel level do you listen at? What is ideal?

For a free and immediately useful sound level meter please consider downloading one to your smartphone from the National Institute of Occupational Safety and Health. 

Simply go to your phone's App Store and search for:  sound level meter. There might be a number of options, but the NIOSH app is simple and can be trusted. 

Is this as good as a calibrated studio level device? No. But it's good enough to get a useable level reading to set a baseline or observation. 

For me my listening levels vary all over the place, when I am listening late at night which I often do, levels are very low probably no more than 60-65 dbA. During the day, when there is not a concern about disturbing anyone, those levels can have 100 dbA peaks, though I never listen at those high levels for very long. Long term levels at loud volumes 80-90 dbA but even that is not continuous. Already sporting measurable hearing loss, I am trying not to make it any worse than it already is. That said, when I am practicing trombone, which I do almost daily, the SPL easily exceeds 100 db and while it is possible to reduce the level a little bit, its not easy to play much quieter than that.

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. 

I always check my decibel levels and always are in the mid to high 80s. 
B&W Matrix 800s. 

@ghdprentice 

+1 …. Big time.

Setting aside the important factor invoked by one’s age , the better the  resolution capabilities provided by your audio system, the better the dynamics, slam, and audio presentation at even modest lower volume levels. and avoidance of fatiguing and/or irritating volume levels. 

I listen at around 88-91dB in a smallish room and I never change the volume.  Once you set the correct volume for the room you don’t need to change it. And before anyone ask no it’s not dependent on the genre of music. The right volume IS the right volume for all music based on a particular source. 

I prefer mid 90s (average) - lots of immersive energy and "you are there" presence, but not too much to be uncomfortable for a reasonable 1 - 2 hour session (with breaks). Don't listen daily, but really enjoy when I do. Never subjected my ears to loud concerts or guns (without ample protection), etc - doing fine so far. 

There is less chance I'm going to like the same things (gear and music) as say a 70dB listener lol. 

Used a meter to test my main system.  Usually stays under 70.  Trying to save what’s left of my hearing. Wear ear plugs now at concerts. 

67 to 72 for most.

Typically around 80db although the sweet spot varies depending on genre

75dB on the Quad57s. 85dB on the Spendors and RELs. 

70dBC for music with peaks into the 90s for the more dynamic material I listen to.

For multimedia outside of music, 80dBC with peaks nearing 100s so I wear some specialised earplugs during movies @polkalover 

Just recently got a DB meter app; I live in an apartment and I sit about 8 feet from my speakers which are about 8 feet apart. What I considered 'loud' turned out to be between 40 and 55 db! And I play rock music, not ambient! 

It is system and person dependent (highly age dependent).

The better my system the lower the required volume has been to sound great, after I got past my 20’s.

so now 65 - 75 db.

Ideal db depends on genre of music and size of room. In below live recording, avg db is mid 80 and bit loud to me. DB meter is about 7ft from speakers. Room is 22’L x 13.5’w x 8’h. Alex/Wavetouch

Faded - Allen Walker