It's data from speaker manufacturer's web sites. Which I said many times.
I have no clue what you are asking. Are you saying published specs are bogus?
Are you also asking (for reasons that are a mystery to me) if I have what experience with the items? How would my experience be relevant? It is an OBJECTIVE list of DATA. The point of OBJECTIVE stuff is exactly the opposite of one's experience, it's about the data that speaker manufacturer's publish.
I have one advice for you: scroll. If you can't read a list and not criticize it from such a self-serving angle, just skip it. I thought the other dude was picky but at least he had a debatable point.