I stated that I would provide a calibration file for the CM-140 and I plan on doing just that. However, it may be a couple of weeks before I actually post it. Some of you will no doubt ask why. There are a couple of reasons for this that I will explain below.
First of all, I am having my ECM8000 re-calibrated at
West Caldwell Calibration Lab. These guys are the real deal. The cost for calibration is $150. I could provide you with a calibration file today, but once my mic has been re-calibrated, the .cal file may be slightly different than it is now. While more than likely it will be very close, I prefer to make absolutely sure and not be releasing a .cal file today and then in two weeks be releasing another .cal file telling you the first one is no good.
Secondly and most assuredly something that will excite several of you... my ECM8000 is going to be calibrated down to at least 5Hz. Once it is returned, I will hopefully be able to provide you with a calibration file to 5Hz or lower for the CM-140.
In the meantime you can use the CM-140 as is and be fairly close.
Once the .cal file is ready... it will be available for download on the Downloads page.