Description
The GRAS 40AH Microphone is an externally polarized microphone with a specially reduced inherent noise floor in order to achieve a high dynamic range and wide frequency range. Its diaphragm is specially tuned to yield high sensitivity coupled with low internal-noise generation.
Technical data
Frequency range (±1 dB)
Hz
12.5 to 10k
Frequency range (±2 dB)
Hz
10 to 16k
Frequency range (±3 dB)
Hz
6 to 20k
Dynamic range lower limit (microphone thermal noise)
dB(A)
6.5
Dynamic range upper limit
dB
113
Set sensitivity @ 250 Hz (±2 dB)
mV/Pa
800
Polarization voltage
V
200 V / Traditional
Microphone venting
Rear
Output impedance
Ω
47
Temperature range, operation
°C / °F
-20 to 60 / -4 to 140
Temperature range, storage
°C / °F
-40 to 85 / -40 to 185
CE/RoHS compliant/WEEE registered
Yes/Yes/Yes
