I found in my system that my Accoustat Spectra 66 esls had a very specific toe in that was once found , was magical. In every system in a given room , there will be that perfect spot you may be fortunate enough to locate.It will be a balance of many sonic attributes worthy of pursuit. Audio education is a private , all consuming endeavour that many of us spend our lives content to do alone yet is fulfilling . Its rather unique to many of us. The curve is vast and perilous . Resolution freaks graduate to imaging obsessives or vice versa. Bass crazies give way to midrange thirsty ideologists . One of the most important aspects of education is the graduation of spl. Newbees do not understand that excessive volume can distort the sonic envelope and flatten the field truncating depth and soundstaging properties.Listening to music at the proper level is like getting a graduate degree. Not a phd , but somewhere past high school and a bachelor degree. Just like a perfect "toe" , the perfect volume will come with time and experimentation.