Anechoic,
Received my calibrated ECM8000 today. Thanks a lot for such quick service!!!
Ray
Received my calibrated ECM8000 today. Thanks a lot for such quick service!!!
Ray
No, Cross Spectrum does not load the files on our download page.I have a question about the "generic" Behringer ECM-8000 calibration file on the Downloads page, with filename "ECM8000-CS.cal". Is this file based on an average of measurements of ECM-8000's done in your lab?
Yep, as brueck mentioned, it's pretty much fine for the home user, but if you want accuracy, go ahead and get a calibrated one from Cross Spectrum (you'll get it within a couple days of ordering). He has the best price for a calibrated ECM-8000 (there are many mics out there that you can purchase that are calibrated, most being several times the cost of the Behringer, and for most, not necessary.Thank you for the clarification - the "generic" ECM-8000 calibration file on the downloads page is clearly within range of the response curves shown in #43, if it is understood to be the curve for one particular microphone, rather than an average of all the ECM-8000s tested by Cross-Spectrum.
I agree that the data (the variation of the curves in #43) shows that individual calibration is needed for accurate measurements. Also, it is noteworthy that there is a lot of variation in the deep bass (20 - 100 Hz) (the critical frequency range for measuring subwoofer room response), as well as the highs (5 - 20 kHz).
For my measurements, it doesn't matter since I don't measure phaseIf we were going to do so, would it not make sense to calibrate the mic/preamp as a system, since there may be more phase effect in the combination than just in the mic?
I don't sell pre-calibrated meters and I don't imagine I ever will because there are potential liability issues on my end if people purchase it from me for the purpose of using it in a legal setting. However, if you buy a meter, you can have it shipped directly to me, and I'll calibrate it and send it on to you which should at least save a couple of bucks in shipping costs as well as a couple of days of time.I see you also calibrate the Galaxy CM-140, but along with selling pre-calibrated ECM8000, do you also sell pre-calibrated CM-140's?
Do the Basic and Basic-Plus not include 1K sensitivity? Seems like everyone would need that.as of August, I'm going to offer 4 mic models: a) "Basic" with 0-deg freq response for $85, b) "Basic-Plus" with 0/45/90 deg for $90, c) "Extra" with 0-deg freq response, polar, noise floor, and sensitivity for $100 and d) "Extra-Plus" with the "Extra" package + 0/45/90 deg for $110. On the plus side, I'm going to do freq-response down to 5 Hz by default.
Correct, the Basic and Basic-plus do not include 1 kHz sensitivity. I thought more people would want sensitivity but it turns out that very few people care about - in fact more people want the polar response than the sensitivity.Do the Basic and Basic-Plus not include 1K sensitivity? Seems like everyone would need that.
That's amazing. How are they measuring SPL? An RS meter that may or may not be within 3dB?Correct, the Basic and Basic-plus do not include 1 kHz sensitivity. I thought more people would want sensitivity but it turns out that very few people care about - in fact more people want the polar response than the sensitivity.
That's amazing. How are they measuring SPL? An RS meter that may or may not be within 3dB?
Some will use the RS meter, some the Galaxy CM-140 and others the ECM8000. SPL is not that terribly important. For level matching, most receivers and processors have Audyssey or equivalent for setting up the system anyway. :nerd:Are people using the ECM8000 to measure SPL?
which sounds about right.Some will use the RS meter, some the Galaxy CM-140 and others the ECM8000. SPL is not that terribly important. For level matching, most receivers and processors have Audyssey or equivalent for setting up the system anyway. :nerd: