1/4" free-field, prepolarized 377C01 microphone and 426B03 preamplifier. TEDS programmed
This model includes a 1/4" microphone cartridge, a mated preamplifier with TEDS, and system calibration. Click the following for individual component information.
377C01
426B03
- Nominal Microphone Diameter: 1/4"
- Frequency Response Characteristic: Free-Field
- Frequency Range: (+2 / -3dB) 4 to 100000 Hz
- Dynamic Range: 165 dB re 20 µPa
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| | English: | SI: | |
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| Performance |
| Nominal Microphone Diameter | 1/4" | 1/4" | |
| Frequency Response Characteristic (at 0° incidence) | Free-Field | Free-Field | |
| Sensitivity (±3 dB) | -54 dB re 1 V/Pa | -54 dB re 1 V/Pa | [3] |
| Sensitivity | 2.0 mV/Pa | 2.0 mV/Pa | [3] |
| Frequency Range (+2 / -3 dB) | 4 to 100000 Hz | 4 to 100000 Hz | |
| Frequency Range (±2 dB) | 5 to 80000 Hz | 5 to 80000 Hz | |
| Frequency Range (±1 dB) | 7 to 12500 Hz | 7 to 12500 Hz | |
| Lower Limiting Frequency (3 dB) | 0.75 to 4.0 Hz | 0.75 to 4.0 Hz | |
| Inherent Noise | 42 dB(A) re 20 µPa | 42 dB(A) re 20 µPa | [1][4] |
| Dynamic Range (3% Distortion Limit) | 165 dB re 20 µPa | 165 dB re 20 µPa | [1] |
| TEDS Compliant | Yes | Yes | [2] |
| Environmental |
| Temperature Range (Operating) | -40 to +176 °F | -40 to +80 °C | [5] |
| Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to +70°C)) | 0.003 dB/°F | 0.006 dB/°C | [1][3] |
| Static Pressure Coefficient | -0.009 dB/kPa | -0.009 dB/kPa | [1][3] |
| Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) | ±0.0014 dB/%RH | ±0.0014 dB/%RH | [3] |
| Influence of Axial Vibration (0.1g (1 m/s²)) | 60 dB re 20 µPa | 60 dB re 20 µPa | [1] |
| Electrical |
| Polarization Voltage | 0 V | 0 V | [6] |
| Excitation Voltage | 20 to 32 VDC | 20 to 32 VDC | |
| Constant Current Excitation | 2 to 20 mA | 2 to 20 mA | |
| Output Bias Voltage | 10 to 14 VDC | 10 to 14 VDC | |
| Maximum Output Voltage | ±8 Vpk | ±8 Vpk | |
| Output Impedance | <50 Ohm | <50 Ohm | |
| Physical |
| Housing Material | Stainless Alloy | Stainless Alloy | |
| Venting | Rear | Rear | [7] |
| Electrical Connector | 10-32 Jack | 10-32 Jack | |
| Mounting Thread (Grid) | 0.25 - 60 UNS | 0.25 - 60 UNS | |
| Size - Diameter (with grid) | 0.28 in | 7.1 mm | |
| Size - Diameter (without grid) | 0.25 in | 6.35 mm | |
| Size - Height (with grid) | 2.07 in | 52.6 mm | |
| Size - Height (without grid) | 2.02 in | 51.3 mm | |
| Weight | 0.27 oz | 7.8 gm | [1] |
All specifications are at room temperature unless otherwise specified.
| Microphone - Safe Handling and Maintenance |
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| Prepolarized vs. externally polarized microphones |
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| Comparison of 1/2" vs 1/4" condenser microphones |
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| Sound power measurements Part 1
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