MI-3170 is a preamplifier for 1/2-inch back-electret type condenser microphone. Adopting the CCLD method and BNC connector, various types of CCLD accepted amplifier, analyzer and data recorder can be connected directly. It can be used in wide operating temperature range (-30 to +80℃) when combined with the MI-1271 high-performance microphone. It is a low noise preamplifier that covers the measurement range of ultra low frequency of 1Hz.
$1,132.00
Specifications
| Applicable Microphones | MI-1271 /1235/1433 |
| Distortion | 0.0316 % or less |
| Frequency Bandwidth | 10 Hz to 40 kHz (+0.1 dB / -0.2 dB / 1 kHz as reference) 1 Hz to 40 kHz (+0.1 dB \ -1.5 dB \ 10 Hz as reference) |
| Input Impedance | 40 GΩ |
| Intrinsic Noise | A-weighting: 3.3 µV or less (Sound pressure conversion 8 dB) / MI-1271 sensitivity: -26 dB re. 1 V/Pa |
| Operating Temperature Range | -30 to +80 ℃ |
| Operating Humidity Range | 0 to 90 % (Not including microphone) |
| Power Supply | CCLD 2 to 4.5 mA / DC 18 to 26 V |
| Outer Dimensions | φ12.7 mm × 80.5 mm |
| Weight | Approx. 35 g (Not including microphone) |
Notes
Standard accessories: Protection cap for input connector×1, Microphone holder (MI-0301)×1, Instruction manual x1
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