I typically listen about 90 to 95 db SPL continuous and on a good recording I may listen even higher (closer to 100 db SPL). Rarely do I listen to anything but very briefly at 105 db SPL (average rock concert levels). All these are at the listening positio, roughly 12 feet back from the speakers.
Some may think this is excessive, however
1) human hearing has a 120 db dynamic range...if you play at 60 db SPL (close to the typical ambient noise floor of 30 db SPL) then you will almost certainly miss details in the music. (Dynamic range is critical to music, the contrast is what provides much of the emotion and feel. Realistic levels of dynamic range, without distortion, is often what most distinguishes real live music from playback)
2) Ever heard a live orchestra/band play as soft as an average level of 60 db SPL....?
Some may think this is excessive, however
1) human hearing has a 120 db dynamic range...if you play at 60 db SPL (close to the typical ambient noise floor of 30 db SPL) then you will almost certainly miss details in the music. (Dynamic range is critical to music, the contrast is what provides much of the emotion and feel. Realistic levels of dynamic range, without distortion, is often what most distinguishes real live music from playback)
2) Ever heard a live orchestra/band play as soft as an average level of 60 db SPL....?