MC3122 is a classical Plug-N-Play 2-channel USB data acquisition hardware with two ICCP input channels and two output channels. It is developed for the acoustic measurement in laboratory and field applications. With BSWA VA-Lab software, MC3122 can be used in environmental noise, architectural acoustics, audio test, Impedance testing and sound quality evaluation. MC3122 is developed based on he sound card technology. Each input channel has ICCP power and a gain of X0.1, X1, X10. 

Input Channel 2
Input Channel Type ICCP◎ (4 mA)
Cross Talk > 60 dB
Frequency Response (Ref: 250 Hz, + 0.5 dB/-1.0 dB) 20 Hz ~ 20 kHz
Total Harmonic Distortion < 0.01%
Measurement Range (with MP201 and MA201 at 50mV/Pa sensitivity) 18 ~ 146 dBA x0.1: 58 ~ 146 dB; x1.0: 38 ~ 126 dB; x10: 18 ~ 106 dB
Input Connector BNC
A/D Converter 16bits
Max. Sampling Frequency 44.1k
Max. Input Voltage 2Vrms
Headphone output Standard 1/4’’ stereo output for headphone
Output Channel 2
Output Frequency Range 20 Hz ~ 20 kHz Achievable Sine, Pink, White noise.
Max Output Voltage 1Vrms
Power Requirement build-in re-charge battery or external 220V AC (4 hours battery life)
Temperature -10°C ~ +40°C
Humidity 0 ~ 98% RH
Size 300×200×50mm
Weight 2.3kg

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