MI series


The MI series microphones are 1/2-inch free sound field type measurement microphones that adapt the back electret method which does not require bias voltage:

  • MI-1280 achieves high sensitivity;
  • MI-1271 has improved the environmental stability against temperature and humidity;
  • MI-1235 emphasizes on frequency weighting and has wide band range; and
  • MI-1433 realizes the environmental resistance at a low price.

The MI series microphone is used in combination with the preamplifier and the microphone.
Since microphone and preamplifier are not built-in type, installation costs can be reduced in the event of faulty.