I forgot to say that i enjoy TWO listening positions in my room which neither of one i can choose over the other one so good the two are...I listened half the time in each position equally...
3 feet from the speakers and 8 feet from the speakers in my square 13 feet room...
The loudness button may be useful ONLY at very low level in my near listening position...
They are not useful for me in my 8 feet location because the decibel level is put higher in this position and the room acoustic give me all necessary bass and highs impact clearly already...
By the way it is another false dogma that a room must be tuned and can be tuned ONLY for one listening position... I enjoy and tune my room for two....With more headphone intimate details effect in near listening but more lively natural sound in the distant position but keeping enough intimacy to beat all my headphones though or rival them...
In the two postions the soundscape encompas me and is "almost" spherically around me because in some recording i am betwen the periphery and the center of the soundscape...Is it not good for a stereo system? When some claim wrongly that the sound can only and must be ONLY between the speakers plane and cannot encompass the listener...
Acoustic method is the audio miraculous wonder over the gear itself....