| GR 40AD |
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| ½" Pressure, 50mV/Pa, Prepolarized, Precision microphone |
| GRAS 40AD is ½" general purpose prepolarised microphone, covering a frequency range from 3.15 Hz to 10 kHz. The sensitivity is 50mV/Pa.
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| GR 40AE |
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| ½" Free-field, 50mV/Pa, Prepolarized, Precision microphone |
| GRAS 40AE is ½" general purpose prepolarized microphone, covering a frequency range from 6.3 Hz to 20 kHz. |
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| GR 40AO |
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| ½" Pressure, 12.5 mV/Pa, Prepolarized, Precision microphone, Wide frequency |
| GRAS 40AO is ½" general purpose prepolarized microphone, covering a frequency range from 3.15 Hz to 20 kHz. |
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| GR 40AQ |
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| ½" Random, 50mV/PA, Precision microphone |
| GRAS 40AQ is a special microphone with a frequency response that is optimised to measure sound pressure levels correctly in random, diffuse or reverberant sound fields. |
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