Without the EQ feature I could never match my Maggies with my VP150 and QS8 in HT. The sound was too far off that any movie sounded off because the sound characteristics of my mains were very different than my center and rears. After calibration with the Elite MCACC feature the speakers work together rather well and balanced.
I only use EQ calibration for movies. I listen to music in 2 stereo mode as it was made to be.