Low Noise Prepolarized Microphone

The 378A04 is a matched system that is comprised of a high sensitivity microphone and a low noise preamplifier that contains a built-in filter that enables the free-field response to remain flat over a wide frequency range. The system requires a minimum of 4 mA and measures to 6.5 dBA (5.5 dBA typical) within a cost efficient, prepolarized (0V) design. PCB's model 378A04, the industry's first prepolarized low noise microphone and preamplifier system allows you to measure extremely low amplitudes. In the past this was only possible with externally polarized solutions. With a typical noise floor of 5.5dBA, this microphone system delivers all of the benefits commonly associated with prepolarized systems.

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Microphone System

378B02 - PCB Piezotronics, Inc.

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

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Microphone Preamplifier

426A30 - PCB Piezotronics, Inc.

1/2-inch preamplifier with 7-pin LEMO connector (for externally polarized microphones)

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PROBE MICROPHONE ICP

377B26 - PCB Piezotronics, Inc.

Open Circuit Sensitivity (at 250 Hz)Frequency Range (+2.2/-4.9 dB)2 to 20000 HzLower Limiting Frequency (-3 dB)Inherent Noise<45 dB(A) re 20 Pa Dynamic Range(3% Distortion Limit)EnvironmentalTemperature Range (Operating)-40 to +158 F-40 to +70 C[5]

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Microphone Preamplifier

426B31 - PCB Piezotronics, Inc.

Performance:Nominal Microphone Diameter:1/4" Frequency Response:3.98 to 126000 Hz3.98 to 126000 10.0 to 126000 Hz10.0 to 126000 HzElectrical Noise (A-weight)3.8 TEDS CompliantYes

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ICP Microphone System

378A14 - PCB Piezotronics, Inc.

This model includes a 1/4" microphone cartridge, a mated preamplifier with TEDS, and system calibration.

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Precision Condenser Microphone

377B02 - PCB Piezotronics, Inc.

1/2" free-field, prepolarized condenser microphone, typical sensitivity= 50 mV/Pa (+/-1.5 dB), 3.15 Hz to 20 kHz (+/-2 dB).

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Precision Condenser Microphone

377B11 - PCB Piezotronics, Inc.

Performance:Nominal Microphone Diameter:1/2 CharacteristicPressureOpen Circuit Sensitivity: 50 mV/Pa50 mV/PaInherent Noise<15 dB(A) re 20 Pa<15 dB(A) re 20 Pa Dynamic Range (3% Distortion Limit)>143 dB re 20 Pa>143 dB re 20 Pa EnvironmentalTemperature Range (Operating)-40 to +248 F-40 to +120 C Temperature Coefficient of Sensitivity (+14 to +122F (-10 to +50C))0.005 dB/F0.009 dB/C

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ICP Microphone System

HT378B02 - PCB Piezotronics, Inc.

This model includes a 1/2" microphone cartridge, a mated preamplifier with TEDS, and system calibration. Click the following for individual component information.

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Microphone Preamplifier

426A11 - PCB Piezotronics, Inc.

1/2-inch ICP preamplifier with gain and filter switches (for prepolarized microphones)ICP(R) low noise preamplifier with gain, filters, and TEDS

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Precision Condenser Microphone

377C41 - PCB Piezotronics, Inc.

1/2" condenser microphone, free-field, 200 V Polarization

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ICP Electret Array Microphone

130A23 - PCB Piezotronics, Inc.

Nominal Microphone Diameter: 1/4" Frequency Response Characteristic (at 0 incidence)Free-FieldInherent Noise (A Weighted)<30 dB(A) re 20 Pa<30 dB(A) re 20 Pa Dynamic Range (High)150Environmental Temperature Range ( Temperature Effect on Output (-10 to +50 C)<0.7 dB<0.7 dB[2] Influence of Axial Vibration Excitation Voltage 18 to 30 VDC18 to 30 VDC

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ICP Microphone System

378C01 - PCB Piezotronics, Inc.

This model includes a 1/4" microphone cartridge, a mated preamplifier with TEDS, and system calibration. Click the following for individual component information.

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Precision Condenser Microphone

2575 - PCB Piezotronics, Inc.

Performance:Nominal Microphone Diameter1"1" Frequency Response: Characteristic (at 0 incidence) Random IncidenceRandom Incidence Open Circuit Sensitivity: 45 mV/Pa Resonant Frequency (90 Phase Shift)8000 Hz8000 Hz[1] Inherent Noise<10 dB(A) re 20 Pa<10 dBTemperature Range (Operating)TBD FTBD C Humidity Coefficient of Sensitivity (0 to 95%, non-condensing)0.001 dB/%RH

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Precision Condenser Microphone

377C10 - PCB Piezotronics, Inc.

Performance:Nominal Microphone Diameter:1/4"CharacteristicPressure Open Circuit Sensitivity1.0 mV/Pa1.0 mV/PaFrequency Range (2 dB)4 to 70000 Hz4 to 70000 Hz Lower Limiting Frequency (-3 dB)0.25 to 3.0 Hz0.25 to 3.0 Hz Resonant Frequency (90 Phase Shift)65000 Hz65000 HzHumidity Coefficient of Sensitivity (0 to 100%, non-condensing)0.0012 dB/%RH0.0012 dB/%

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