>Product Introduction
NS20 preamplifier is a voltage powered preamplifier with the characteristics of high input impedance, low background noise and wide frequency response range. It can be used with the 1/2-inch pre polarization measurement microphone of MP21. At the same time, it can also be compatible with other brands of measurement microphones, such as B&K, G.R.A.S. The output adopts a three wire plug, which can easily carry out power supply configuration and signal output. It is suitable for electroacoustic tester, multi-channel analyzer and other instruments.
>Technical Parameter
Frequency Range | 10Hz~100kHz(±0.5dB) |
Input Impedance | >5GΩ |
Output Impedance | <110Ω |
Power Supply Mode | DC 4V-28V |
Electrical Noise( A-weighted ) | <3 μVrms |
Noise,Linearity(20~20kHz) | <10 μVrms |
Maximum Input Voltage | 7.072Vrms(20Vpp) |
Maximum Output Voltage | 6.9Vrms |
Interface Type | Three Wire Output |
Applicable Temperature | -40℃ ~ +70℃ |
Screw Thread Connector | 11.7mm~60UNS(M11.7×0.423mm) |