Primo EM23 response chart.

[k brown]

How should this response chart be interpreted? - there's no legend for the numbers on it; I guess it's showing on-axis, 90 degrees and 180 degrees?

 

[Erik2345]

It's only 0 axis response with the tolerances.

 

[k brown]

What are you basing that on? - Those are pretty horrible tolerances!

Just seems odd - they don't chart tolerancees on any of their other spec sheets.

 

[kingkorg]

Yes, they are tolerances, and no they are not that bad, this is the same graph, but for Neumann u87, quite a tolerance range there as well.

 

[abbey road d enfer]

How should this response chart be interpreted? - there's no legend for the numbers on it; I guess it's showing on-axis, 90 degrees and 180 degrees?

I would very much doubt it for the EM23 is an omni.
That is called a template; that is how capsules are QC'ed. A capsule passes if the actual response does not deviate more than the template's limits.
BTW, the numbers are there: +/-1dB 200Hz -1k, +/-2dB below 200, and so on.
Not "horrible" tolerances; welcome to the world of electroacoustic transducers.

 

[k brown]

Yes, I finally figured out the numbers were deviation from 0.