INSTALL MICROPHONES
General Microphone Characteristics
All Plixus compatible units have a screw-lock connector to insert pluggable microphones.
The recommended speaking distance from the mouth to the top of the microphone is between 20 to 40cm.
In order to accommodate the variety of speakers and speaking distances, microphones are available in
three different lengths: 30cm (D-MIC30SL), 40cm (D-MIC30SL) and 50cm (D-MIC50SL).
Technical Microphone Characteristics
Parameter Specifications
Material Brass
Color Matt black, RAL 9011
Transducer principle Back electret (condenser)
Operating principle Pressure gradient
Polar pattern Unidirectional
Nominal conditions
Bias resistor = 1k2
Vdd = 3.3 VDC
SPL = 1Pa
Max SPL @ 1 kHz 110dB SPL (1% THD+N)
Signal to noise ratio > 67dB(A)
Free field sensitivity 9.4 mV/Pa ± 3dB @ 1 kHz or
-40.5 dB, 0 dB = 1V/Pa @ 1 KHz
Power supply 3.3 VDC, 0.5mA
Consumption 0.5mA (without LED ring)
Max. 25mA (with LED ring)
Connection Screw lock
INSTAL L MICR O PHO NES 78