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1/4 inch microphone overview


Type

MI15

MI19

RG-50

MI17

MI21
Sensitivity
50 mV/Pa ± 0.5 dB
50 mV/Pa ± 0.5 dB
50 mV/Pa ± 0.5 dB
50 mV/Pa ± 0.5 dB
50 mV/Pa ± 0.5 dB
Frequency response
20Hz – 4kHz ± 0.5dB
4kHz – 20kHz ± 1.5 dB
20Hz – 4kHz ± 0.5dB
4kHz – 20kHz ± 1.5 dB
5Hz – 4kHz ± 0.5dB
4kHz – 20kHz ± 1.5 dB
20Hz – 4kHz ± 0.5dB
4kHz – 20kHz ± 1.5 dB
20Hz – 4kHz ± 0.5dB
4kHz – 20kHz ± 1.5 dB
Inherent noise
(lin: 20Hz-20kHz)
(“A”- weighted)

approx. 30 dB (20 µPa)
approx. 26 dB (20 µPa)

approx. 33 dB (20 µPa)
approx. 29 dB (20 µPa)

approx. 30 dB (20 µPa)
approx. 26 dB (20 µPa)

approx. 30 dB (20 µPa)
approx. 26 dB (20 µPa)

approx. 30 dB (20 µPa)
approx. 26 dB (20 µPa)
SPL Peak (5% Dist.)
130 dB
130 dB
130 dB
130 dB
130 dB
Constant Current
Supply
IEPE
2-8 mA
IEPE
2-8 mA
IEPE
2-20 mA
IEPE
2-8 mA
IEPE
2-8 mA
Internal resistance
50 Ω
50 Ω
50 Ω
50 Ω
50 Ω
Dimensions
Total length

65 mm

84 mm

93 mm

93 mm

84 mm
Tube diameter
7 mm
7 mm
8 mm
8 mm
7 mm
Connector
BNC (Ms/Ni)
BNC (Ms/Ni)
BNC (Ms/Ni)
BNC (Ms/Ni)
BNC (Ms/Ni)
Weight
15 Gram
20 Gram
23 Gram
23 Gram
20 Gram
Material (housing)
stainless steel
1.4305
stainless steel
1.4305
stainless steel
1.4305
stainless steel
1.4305
stainless steel
1.4305
Scope of delivery
Calibration Certificate
Calibration Certificate
WS-RG-40
Windscreen
Calibration Certificate
WS-RG-40
Windscreen
Calibration Certificate
WS-RG-40
Windscreen
Calibration Certificate
WS-RG-40
Windscreen
IP55
Options
WS-RG-30
Windscreen
SW IP55
Splash-Proof
SW IP55
Splash-Proof
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