This is not so much a full-on question as a request for clarification and my googling is not getting me info quickly enough:

The specs for my beloved M22ti speakers.

Freq Resp +/-3dB (Hz) 60-22K
Freq Resp +3dB/-9dB (Hz) 50-22K
SPL in Room 1w/1m 93 dB
Anechoic SPL 1w/1m 89 dB

Are the following to interpretations correct?
The first line means that the Frequency response between 60-22K fluctuates + or – 3 decibels. The second means that the Frequency Response between 50-22K is +3 to –9 decibels.
Why not just say 50-22K +3dB/-9dB since 50 Hz is lower than 60Hz? Right?
I assume there is something I am missing. Please expound!

Now for the two SPL lines.
Does the 1w/1m 93dB mean One watt of power measured one meter from the speaker produces a SPL of 93 dB.
What is the difference between ‘Room’ and ‘Anechoic’ (which I assume is an NRC chamber) and why is this important? If Room is just any old room why give me that information since it’s totally subjective (what I have in my room is not what you have in yours)?
What does this tell me about the speaker?
It’s sensitivity? What does that mean? That it can play louder at lower wattages than other speakers?

I might already have some of the answers, but would like to be sure so I don’t end up talking out of my --- in the future. Plus more and more people are asking me for advice and I don't want to steer them wrong! Yeah, I know Axioms can't be wrong, but I at least TRY to be objective.

Thank you mucho- JR


"What can be asserted without evidence can also be dismissed without evidence." C Hitchens