MI-3170

Preamplifier

MI-3170

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
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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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