Now that I have written my conclusions for the 2nd review (to be posted this evening), I have started reading other reviews and examining measurements.
It is uncanny how closely my thoughts about the BMRs track with @hardisj 's. We do have some divergence on the in-room measurements however. Erin's PIR is much brighter than what I measured in either of my rooms. In both rooms, the BMRs generally tracked a generic Harman-type -10dB target.
Erin's PIR:
My office MIR:
View attachment 102852
My media room MIR:
View attachment 102853
These are stereo measurements, but the individual left and right measurements show the same trends.
Bass extension is difficult to accurately measure in something approaching anechoic conditions, as we all should well know, so there is no reason to harp on this difference, but it is worth noting that the BMRs were able to reach ~30Hz at the intersection of the trend line at ~76dB in both of my setups. Erin's PIR shows significantly less bass.
A potentially significant difference in our listening tests is that I listen uncorrected for an hour or so to get a sense of the speakers, then I do all my critical listening with simple PEQ correction--mostly under the Schroeder frequency. I am sure many people will line up to tell me I'm doing it wrong, but it is a real world situation for some percentage of the population. I also have terrible listening rooms, and I feel applying some correction is required to do the speakers justice. Sixteen dB of extra BOOM at 43Hz is not a pleasant thing. Erin notes that his critical listening is done uncorrected, which I believe is the standard.