Sound field type
Free field type
Sensitivity, mV/Pa (dBV/Pa)
15.8mV/Pa±2dB-36dBV/Pa±2dB
Frequency response range
4 Hz - 40 kHz (±2 dB)
Polarization voltage
0V
Dynamic range (based on 20 uPa)
20～140dB
Upper limit of dynamic range (based on 20 uPa)
≥140dB （250Hz，distortion < 3%）
Equivalent noise (based on 20 uPa)
≤20dB(A)（250Hz）
Range of operating temperature
-20℃ ～ +60℃
Temperature coefficient
0.015dB /℃（-10℃ ～ +50℃，250Hz）
Static pressure coefficient
-0.01dB /kPa
Relative humidity range
0～90%(without condensation)
Relative humidity coefficient
<0.1dB(0 - 90% without condensation)
Pressure equalization vent
Side
IEC 61094-4 Designation
WS3F
Input impedance
>2GΩ/50pF
Output impedance
<20Ω
Distortion(THD)
<0.1%
Power supply
IEPE（2mA～10mA）
Rated operational current
4mA
Noise (A-weighted)
<3µVrms
Linearity (20 - 20 kHz)
<10µVrms
Gain
-1.2dB
Connector
SMB port