I vote for the 936. My listening room has almost the exact same L shaped configuration with the rear wall only extending about half way behind my listening position. Main listening area is 12'x24' with a 12'x12' wing forming the L. Ceiling is 7.5' ( basement). Carpeted floor and large sectional couch about 8' from speakers.
I have a pair of Focal Chorus 836V's which have nearly the identical spec as the Aria 936, including the 3 Ohm dip at 100 hz. I traded up from a pair of Chorus 826v's. Love the sound, but, frankly, still wanted mor low end range and found a Focal SW800 subwoofer. This still only goes down to 27hz, but it made a huge difference - I still have the amazing mids and upper beauty that drew me to Focal in the first place, but would never give up what the subwoofer added.
I think there is a risk that any room can potentially be overwhelmed in the bass range, but doubt that will be an issue with the 936. If it is, you can always work with room treatments to tweak the issue.
I have a pair of Focal Chorus 836V's which have nearly the identical spec as the Aria 936, including the 3 Ohm dip at 100 hz. I traded up from a pair of Chorus 826v's. Love the sound, but, frankly, still wanted mor low end range and found a Focal SW800 subwoofer. This still only goes down to 27hz, but it made a huge difference - I still have the amazing mids and upper beauty that drew me to Focal in the first place, but would never give up what the subwoofer added.
I think there is a risk that any room can potentially be overwhelmed in the bass range, but doubt that will be an issue with the 936. If it is, you can always work with room treatments to tweak the issue.