G.R.A.S. 46AQ


Used in laboratory and field enviorments for measurements in reverberant fields. Random incidence microphones provide uniform frequency response when sounds are coming randomly for all directions, as they are in a reverberation chamber.

The 46AQ is used for sound power level determination, sound transmission loss measurements and sound absorption measurements conducted in a reverberation chamber or other reverberant test environment.

BNC connection and CCP power is compatible with National Instruments data acquisition systems.

  • 1/2” Random Incidence Microphone
  • Prepolarized Microphone (GRAS 40AQ)
  • CCP Powered Preamplifier (GRAS 26CA)
  • 50 mV/Pa sensitivity
  • 3 Hz to 12.5 kHz +/- 2 dB
  • 17 dBA noise floor
  • 135 dB Max SPL

Additional product information and data on the GRAS 46AQ can be found here:

Product Data Sheet (PDF)



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