Behringer ECM8000 vs. Earthworks M30.

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: Hello,

: This is a transfer measurement between Behringer ECM8000 and Earthworks M30

: Metod: 

: -The two microphones put side by side with a two microphone clamp (Very close), for measure the transfer between the microphones at same time.

: -The two capsules with identical allineate (1mm max error), No set any delay compensation between microphones.

: -A noise generator conected to a Speaker (Genelec Speaker). I didn't measured the speaker response, just the diference between microphones with the same stimulus.

: -A Dead room

: -Captured with a USBPre 1.5 (the two microphones conected at same time in one of the two microphone inputs of the USBPre).

: -3 different ECM8000 was tested

: The results:

: This is the diference of the Behringer vs. Earthworks M30, M30 was a reference signal, ECM8000 Measure signal

: Phase Behringer vs. Eartworks M30:

: http://www.lasalademaquinas.com/fase_beh.jpg

: Transfer Behringer vs. M30:

: http://www.lasalademaquinas.com/behringer.jpg

: calibration graph of the Earthworks M30:

: http://www.lasalademaquinas.com/earthwks.jpg

: Conclusion (Almost for me): the M30 are much better microphone than the ECM8000

: Cheers

: : Hi All,
: : After doing a LAB search on the topic, I would like some opinions on measurement microphones. I have seen some people using the 
: : Behringer ECM8000, it's a bargain, but will I be able to collect data that is accurate enough for sound system analysis with it? Some people  are using the Audix TR-40, which seems like a good choice for a reasonable price. If you are using it, how do you like it?
: : I have used the Earthworks M-30 before with SmaartLive, and it seems to be very accurate. Do you think it is better enough to justify the price difference between it and the other two?
: : Thanks in advance for your responses.
: : Cheers,
: : Marc



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