IT'S ABOUT TIME!!!
Time, phase, & transient response..... NOT frequency response. Everybody seems to go gaga over frequency response and how FLAT it has to be. But what really obscures details in music is transient anomalies and little resonances that maybe don't contribute much to the frequency response, but DO obscure details. Imagine for a minute that you have two speakers that measure absolutely flat, but one has better phase and time alignment between the drivers... don't you think you'll hear MORE detail from the better aligned one, even though no special frequencies are being "enhanced" or boosted. IMO, frequency response is only half the story. Maybe it's even less than half the story. There's so many other aspects of audio to worry about!