To be honest, Peter, I don't know. But what i do know, now that you've told me, is that these two speakers have different mid and high frequency drivers and different crossovers, and it seems very unlikely that they would have identical measurements, even on axis in an anechoic chamber. Do you know any details about the measurements that were made?
Tim
No, I don't know any details about the measurements. I was just responding to your comment that there are more speaker measurements than frequency response. I'm sure there are, and I was hoping that you could explain what they are. All that I've read is that the designer Alon Wolf, said that the frequency responses between the two speakers are identical and the reviewer, Robert Harley, wrote that the measurements are nearly the same. I am almost finished reading the review and there are no comments about the measurements so far.
We are therefore left to read the poetic prose, often full of hyperbole, which is the only reason I am discussing this subject, which was introduced by microstrip, in this thread about introspection and hyperbole. Before being able to listen to the speaker, without any measurements to see, we are left with subjective reviews as the only source of information along with published specifications.
Absent any discussion about what measurements are conducted by speaker manufacturers, we are left with opinion and speculation and the need to listen to the speakers to hear the differences, which is not always easy to do under the same conditions.