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  • Type 40AR

    The Type 40AR is a special microphone with a frequency response that is optimised to measure sound pressure levels correctly in random, diffuse or reverberant sound fields.

  • Type 40AQ

    The Type 40AQ is a special ½" prepolarised microphone with a frequency response that is optimised to measure sound pressure levels correctly in random, diffuse or reverberant sound fields. This microphone fulfills the requireme…