You should stop with this madness and look at some facts:
I assume JA got his Alexia installed by the proper authorities, right?
So just look at these 3 measurements, taken by JA. On-axis, off-axis, and in-room, they tell it all. We have a rare opportunity to see these two different speakers in the same environment, measured similarly.
Look at how much smoother the S5 off-axis response is, that results in a much better in-room response (different scale on the off-axis, but you can see the Alexia wreckage at 30°). No professional installation will change the Alexia poor off-axis performance, and that will make any room interaction impossible to predict or tame (Ignore the blue line on the S5 in-room, that is a different speaker).
S5 MK2:
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Alexia:
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Great post!
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