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Yes, I ordered from Cross Spectrum. May or may not need better cals on axis and off axis but you never know? Certainly appreciate better accuracy down low and in the upper frequency and the value add service that CS provides.
 

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Have you seen much variation mic to mic for the UMM-6 microphones? Or would a "generic" calibration be useful enough to get you "90% there"?

Unfortunately, I've purchased multiple (different models) of "calibrated" microphones from Parts Express and I've already spent more than I should have, otherwise I would have just bought one from CSL by now (I wish I had in the first place!).

But I had no reason to suspect that P.E.'s calibrations were basically garbage! :scratch:

Now I'm stuck with 3 different models of mics from P.E., but have zero decently calibrated ones and no more $$ to remedy the situation. Luckily the $2 Panasonic Electret capsules are mostly +/- .1 db or so through the crossover region at least, I just can't get an accurate measurement of any of my speakers at the top or bottom.

If I had to guess, the calibration for my particular UMM-6 gets me about 1/2 way to flat in the 16Khz - 20Khz range, but is there even a point to having a calibration that poor? Not IMO.

:rant:
 

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I only have a single Mic. No way to compare or know the lot to lot variation.

I would try to speak with CS to get an idea how much variation has been seen.

I would guess that for 99% of the folks out there the stock calibration is totally fine. In my case I was building a sub so wanted the subsonic accuracy.

Good luck and Happy New Year!
 

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I only have a single Mic. No way to compare or know the lot to lot variation.

I would try to speak with CS to get an idea how much variation has been seen.

I would guess that for 99% of the folks out there the stock calibration is totally fine. In my case I was building a sub so wanted the subsonic accuracy.

Good luck and Happy New Year!
I don't mean the stock one from Dayton when I say "generic", all the calibrations I've seen from Dayton are flat out awful. By "generic" I mean, if they were fairly consistent mic-to-mic and you did a calibration from one basically "in the middle of the pack" - well that could be offered as a "generic" calibration file, and potentially, be 10x better than the ones generated specifically for each mic from the Dayton website. Generic calibration files for Berhinger measurement mics have been passed around in the past. I just don't know for sure because I have no idea how similar UMM-6 mics generally are unit-to-unit.
 
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