NP2123 inch Preamplifier-北京奥音贝科技有限公司
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Sensor Acoustic vibration equipment Test system
NP2123 Preamplifiers

NP2123 preamplifier is a voltage powered preamplifier with characteristics such as high input impedance, low background noise and wide frequency response range. It can be paired with 1/2-inch prepolarized measurement microphone MP2121. The output adopts a three wire plug system, it is convenient to configure power supply and output signals, suitable for electroacoustic testers,  multi-channel analyzers and other instruments.

Performance parameter
Performance parameter
Frequency Response
10Hz~100kHz(±0.5dB)
Input Impedance
>5GΩ
Output Impedance
<110Ω
Power Supply
DC(4~28)V
Noise(A Weighting)
<3 μVrms
Noise,linear(20~20kHz)
<10 μVrms
Max Input Voltage
7.072Vrms(20Vpp)
Max Output Voltage
6.9Vrms
Interface Type
three-wire output
Applicatble Temperature
-40℃ ~ +70℃
Threaded Interface
M11.7 - 60UNS (M11.7×0.423mm)