Other than Dynamic EQ to improve the bass and put a big smile on my face
, I don't put too much MONEY into any Room EQ software to significantly improve the midrange and treble.
I don't care too much if it's Harman's ultra expensive room EQ, Dirac, DART, Lyngdorf, ARC, Audyssey Pro or YPAO.
Reasons:
1. If your room is Moderately or Severely messed up, may the gods help you because no room EQ will help you.
2. If your room is only mildly messed up, Room EQ may enhance the measurements, but it probably isn't too significant overall in reality.
You can get your speakers to measure 20Hz-20kHz +/- 0.3 dB and have smooth off-axis and great overall measurements. But it doesn't guarantee that everyone will prefer it to another speaker that measures 20Hz-20kHz +/- 3.0dB and has a little less smooth off-axis and less stellar overall measurements.
I think some of us may be chasing the numbers too much and too seriously. We chase that ultra flat in-room frequency response or the best 1w-audio-band-unweighted SNR. It's great because it's a hobby and we want to do that in leisure. It's especially true for professional publications like Audioholics who must have perfection in every way.
But for the rest of us mere mortals, all we want is to have that Super Dynamic Crystal-Clear Sound and when the bomb goes off, space ship flies overhead, and T-Rex stomps the ground, we want that Super Bass to put a big smile on our face.