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Microphone Preamplifier

Microphone Preamplifier

ma211BSWA MA series microphone preamplifiers are ICCP preamplifier which are designed for BSWA prepolarized microphones. The flat frequency response ensures high quality acoustic measurement.  BNC, TNC, or SMB are available for the ICCP preamplifiers.

mv201BSWA MV series microphone preamplifiers are used for externally-polarized microphones. it is suitable for accurate measurement of high sound intensity and can be powered by BSWA microphone power supply.

PREAMPLIFIER MA211/MA221/MA201T/MA408/MV201
Models MA231 MA221 MA231T MA408 MA401 MV201 MV401
Diameter 1/2 inch 1/4 inch 1/2 inch
Frequency Response (Ref: 250 Hz, ±0.2 dB) 20 Hz ~ 200 kHz 20 Hz ~ 200 kHz 3 Hz ~ 200 kHz
Attenuation (10 Hz ~ 100 kHz) < 0.5 dB < 0.5 dB < 0.5 dB
Input Impedance > 5 GW > 1.5 GW > 20 GW
Output Impedance < 110 W < 110 W < 55 W
Electrical Noise A-weighting  < 2.0 μV
20 Hz ~ 20 kHz < 6.0 μV
A-weighting < 2.5 μV
20 Hz ~ 20 kHz < 8.0 μV
A-weighting < 4.0 μV
20 Hz ~ 20 kHz < 6.0 μV
Max Output Voltage 4.5 Vrms 4.5 Vrms 10 Vrms
Power Requirement ICCP (2 ~ 20 mA) ICCP (2 ~ 20 mA) 28 V, 120 V
Operating Temperature -20°C ~ 80°C -20°C ~ 80°C -20°C ~ 80°C
Operating Humidity 0 ~ 98% RH 0 ~ 98% RH 0 ~ 98% RH
Length 71 mm 36 mm 110 mm 58 mm 91 mm
Output Connector BNC SMB TNC SMB 7-pin LEMO
Thread for Microphone Φ11.7 mm x 60 UNS M6 x 0.5 M5.7 mm x 60 UNS Φ11.7 mm x 60 UNS M 5.7 mm x 60 UNS
UA-22935236-10