TYPE 4189-A-021

½-inch free-field microphone with Type 2671 preamplifier, 20 Hz to 20 kHz, prepolarized

Designed for high-precision, free-field measurements where a microphone with high sensitivity is required.

Angebot anfordern
Type 4189-A-021 is designed for high-precision, free-field measurements where a microphone with high sensitivity is required.

USE SCENARIOS

  • Precision sound measurement
  • Premium class sound level meters
  • Equipment complying with IEC 61672 class 1
Capacitance
pF
Diameter
1/2
Dynamic range
16.5 – 134 dB
Frequency range
20 – 20000 Hz
Inherent noise
16.5 dB A
Lower limiting frequency -3dB
12 Hz
Optimised
Free field
Polarization
Prepolarized
Polarization voltages
V
Pressure coefficient
-0.01 dB/kPa
Sensitivity
50 mV/Pa
Standards
IEC 61094-4 WS2F
Temperature coefficient
-0.006 db/ºC
Temperature range
-20 – 80 C
Venting
Rear
Weight
gram
Sound field
Free-field
Input type
CCLD IEPE
Microphone type
Free field