Wow. A lot to digest.thanks share findings here..
Thanks to Amir's good work and wonder robot we can see on objective paper M55XC looks be a nice performer and for directivity pattern within the listening window its actual smoother than all the other Revel's tested so far. Based on Amir's anechoic spindata have a M55XC EQ string suggestion meant for farfield listening (not less than 2 meter), my EQ string use DI curve (directivity index) as policy and not so far from yours and TimVG as seen in below overlaid animation..
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Here is the relative short string using 20 times PEQs that will correct my suggested filter as seen above plus two choices of acoustic textbook high pass knees that will need to be added to the 20 times PEQ string, for the 4th order Linkwitz Riley @80Hz HP acoustic filter the blue symbol means 2nd order active HP and for the 2nd order Linkwitz Riley @120Hz HP acoustic filter the red symbol means active shelving low pass, now i dont know how acoustic low pass settings is for your sub but remember or notice if its of 2nd order and you pick the 2nd order LR @120Hz below then satelite needs to have polarity flipped in Roon else one get a suchout at slopes center frequency because 2nd order minimum phase slopes alway need one of the passbands to be polarity flipped and think its most right its the satelite because if system needs to cooperate with other systems then its most right than a positive pulse will move subs cone forward instead of inward..
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Finally here you have detailed predictions for the 3 choises, animation toggles, 1) out of box, 2) the 20 times PEQ string, 3) the 20 times PEQ string + acoustic HP LR 4th @80Hz, 4) the 20 times PEQ string + acoustic HP LR 2nd @120Hz, have best fun if you try it out ..
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-Interesting this little speaker has the best directivity of any Revel tested so far. When I sent it in, my thought was maybe it would be sealed, mountable M105. Out of the box of course the response doesn't look anything like the M105, but looks like with EQ, it isn't too far off. Pretty amazing for an outdoor speaker.
-Very cool to see my stab at eq with 2 filters by eyeballing it and surprisinly it doesn't look too bad. The animation showing all 3 eq's is very interesting as well. Will give @TimVG's EQ a try next. I need a bit of time to study your EQ to try as well.
-Does your EQ take into account boundry reinforcement? These are about 6 inches or so away from the wall. And about 2 feet from the corner of the room.
-I would like to do an RTA measurement of before/after with these EQ settings. But with the EQ settings in Roon, what is the easiest way to do that? Do I need a pink noise audio file and then use REW to record it?
Thanks again for taking the time. Fun little experiment while I wait for new main speakers.