(EQ'g provided by Audyssey MultEQ XT32/SubEQ HT, in-sub amplifier provided PEQ and REW to guide final efforts.)
Out of respect, I posted both ground plane and in room measurements in an effort to make sure "not" to confuse the issue as was indicated by comparing ground plane to ground plane measurements. For succeeding in confusing the issues, my apologies. The intent of posting this information (ground plane and in-room measurements) is to allow for an apple-to-apple comparison as measurement in one room is not indicative of measurement in another room but a measurement in a room, based on one's EQ'g skill level, is a reasonable indication of what another equally skilled person will be able to get in their room, using similar EQ'g methods.
I don't think your getting what he's saying. The JL spec is a "frequency response" measurement.
The two things you posted were maximum output numbers at different frequencies, and a graph of an in room, eq'ed frequency response. You can't compare the former with either one of the latter. Hope this helps.