As you asked, the first graph was for the individual mic positions, not averaged. I measured 9 positions, the graph shows only 3 of the 9 positions that measured worse, in terms of flatness.
I can see that the legend's wording does look confusing. To clarify, the 3 red ones were with Audyssey On, and the black ones were Audyssey Off and the positions shown correspond to the following 3 positions (hence 6 curves):
- Position 4: 10 inches to the left of MMP
- Position 5: 10 inches to the left and 10 inches above MMP.
- Position 6: 10 inches to the left and 8 inches below MMP.
If I were to post all 9 positions in one graph, it would be hard to read as there would be a totally of 18 curves.
The 9 positions were:
View attachment 194609
If I included all 9 in the graph it would look too busy, the other 6 positions look flatter anyway. You can see that even for the 3 worst positions, by flattening the FR for the MMP, they all improved as well. I just tried the same using Dirac DL3 PC standalone version on a two channel system and found the same effects, that customizing the MMP curve did not make the other mic positions worse.
Look great for various positions, but what smoothing?