Keith_W
Major Contributor
What I don't understand from Behringer is why did they make a calibration file available on their website if no two EMC8000s are the same?
This is pure speculation, but: Behringer may be aware of the general variance of the microphones they have manufactured (see @dualazmak post #6). They could do a statistical analysis and provide a correction for the median response. So it will correct most microphones to a lower error, but not all microphones, and there is a chance you may be in possession of a statistical outlier which isn't corrected by very much. You can also buy ECM8000's from third parties which perform their own microphone calibration. In this case, you will have proper calibration for the microphone that you own.
I own two ECM8000's and an Earthworks M30. The Earthworks cost more than 10x of the Behringer, but it has a serial number and individualized calibration.