Model : 378A04 | ICP Low Noise Microphone System

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$ 2,600.00 USD
(Pricing valid in US only!)

MICROPHONE AND PREAMPLIFIER, LOW NOISE, 1/2" FREE-FIELD PREPOLARIZED

This model includes a 1/2" microphone cartridge, a mated preamplifier with TEDS, and system calibration.

  • Nominal Microphone Diameter: 1/2"
  • Frequency Response Characteristic: Free-Field
  • Frequency Range: (±4dB)5 to 20000 Hz
  • Inherent Noise: 5.5 dB(A) re 20 µPa
  • Dynamic Range: (3% Distortion Limit)>80 dB re 20 µPa

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English: SI:
Performance
Nominal Microphone Diameter 1/2" 1/2"
Frequency Response Characteristic (at 0° incidence) Free-Field Free-Field
Sensitivity (±2 dB) -7 dB re 1 V/Pa -7 dB re 1 V/Pa [2]
Sensitivity 450 mV/Pa 450 mV/Pa [2]
Frequency Range (±4 dB) 5 to 20000 Hz 5 to 20000 Hz
Frequency Range (±2 dB) 10 to 16000 Hz 10 to 16000 Hz
Lower Limiting Frequency (-3 dB) 2 to 5 Hz 2 to 5 Hz
Inherent Noise 5.5 dB(A) re 20 µPa 5.5 dB(A) re 20 µPa [1]
Inherent Noise <6.5 dB(A) re 20 µPa <6.5 dB(A) re 20 µPa
Dynamic Range(3% Distortion Limit) >80 dB re 20 µPa >80 dB re 20 µPa [4]
Dynamic Range(3% Distortion Limit) >100 dB re 20 µPa >100 dB re 20 µPa [5]
Maximum Sound Pressure Level(Peak) 130 dB re 20 µPa 130 dB re 20 µPa [1] [6]
TEDS Compliant Yes Yes [3]
Environmental
Temperature Range (Operating) -40 to +176 °F -40 to +80 °C
Temperature Coefficient of Sensitivity (+14 to +122°F (-10 to +50°C)) 0.005 dB/°F 0.009 dB/°C [1] [2]
Static Pressure Coefficient -0.013 dB/kPa -0.013 dB/kPa [1] [2]
Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) ±0.001 dB/%RH ±0.001 dB/%RH [2]
Electrical
Polarization Voltage 0 V 0 V [7]
Excitation Voltage 20 to 32 VDC 20 to 32 VDC
Constant Current Excitation 4 to 20 mA 4 to 20 mA
Output Bias Voltage 12 to 16 VDC 12 to 16 VDC
Maximum Output Voltage ±2 Vpk ±2 Vpk
Output Impedance <50 Ohm <50 Ohm
Physical
Housing Material Stainless Alloy Stainless Alloy
Venting Rear Rear [8]
Electrical Connector BNC Jack BNC Jack
Size - Diameter (with grid) 0.52 in 13.2 mm
Size - Diameter (without grid) 0.50 in 12.7 mm [9]
Size - Height (with grid) 4.02 in 102.1 mm
Size - Height (without grid) 3.99 in 101.2 mm
Weight 1.81 oz 51.3 gm [1]
* All specifications are at room temperature unless otherwise specified
.


Specification Notes


[1] Typical.
[2] re 1 kHz
[3] TEDS Capable Digital Memory and Communication, compliant with IEEE 1451.4
[4] In the total frequency range.
[5] Below 5 kHz
[6] Non-destructive
[1] Typical.
[2] re 1 kHz
[7] Prepolarized
[1] Typical.
[8] Venting through Preamp.
[9] Protection grid permanently affixed to the microphone.
[10] See PCB Declaration of Conformance PS138 for details.


Accessories


Supplied
ACS-156 1


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