Ah yes - got caught - almost! - on that one. The sound was tweaked but only AFTER I had taken several measurements and knew what the situation was. But really, the very low end in a room, say < 100 Hz. is so hard to measure, so completely mixed up with modal patterns that "by ear" actually does work. One should take measurements, but these are never as complete as I would like and then tweak by ear within some contraints of what the measurements say.I tweak, we all tweak in that I do use tone controls - typicaly -1 dB trebble and + 1 or 2 dB bass. The tweeaking that I was refereing to above was in setting the LFE channel level since this is hard to measure.