I haven't heard the Q7, but I did attend demos of the Q5 and Q3 with Alon Wolf present, and the volume seemed just below "live" levels. With such low levels of distortion, the audition was quite comfortable and non fatiguing. I sit in the 12th row at the Boston Symphony Orchestra and when Wolf played classical music, it sounded about right, that is, quite natural.
Sorry, I just realized you were talking about MBL. Well anyway, Magico does not blast the volume.