• These commercial threads are for private transactions. diyAudio.com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members, use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

Dayton EMM-6 Electret Measurement Microphone

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
For sale is a Dayton EMM-6 measurement microphone in great condition. Includes case, wind muffler and mic clip.

This is a great mic for taking measurements for speaker design, room EQ or any other audio analysis purpose. It is a surprisingly flat response microphone to 20kHz even without any calibration file. However, I wouldn't trust the supplied Dayton calibration at all, it's far too "noisy". I will provide the Dayton calibration file, but will also supply you with 2 alternative calibration options. One was made using a Dayton Omnimic as reference, and the other was made using a Line Audio OM1 as reference. Both are within about 0.5dB with the Omnimic cal providing a slight lift (0.5dB) in the upper mid / lower treble range, so you can decide which is more "correct". Because the mic is so flat as-is, the calibration is only providing about +/- 1dB of compensation, so the differences between them are fairly small overall.

Asking CAD$40. Expect shipping cost around $20 via Canada Post. It probably doesn't make sense to ship a low cost item like this internationally.
 

Attachments

  • 20210315_220735.jpg
    20210315_220735.jpg
    658.1 KB · Views: 180
  • comparison.png
    comparison.png
    31.7 KB · Views: 185
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.