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Specification Sheet
MODEL MX391 SERIES MICROPHONES
2
Equivalent Output Noise (A-weighted)
Cardioid: 22.6 dB SPL
Supercardioid: 21.3 dB SPL
Omnidirectional: 14.5 dB SPL
Dynamic Range
at 1 kΩ Load
96.2 dB
Common Mode Rejection
45 dB minimum, 10 Hz to 100 kHz
Preamplifier Output Clipping Level
–6 dBV (0.5 V)
Polarity
Positive sound pressure on diaphragm produces positive voltage
on pin 2 relative to pin 3 of the preamplifier XLR output connector.
Power Requirements
11 to 52 Vdc phantom
2.0 mA current consumption
Certification
Eligible to bear CE Marking. Conforms to European EMC
Directive 89/336/EEC. Meets applicable tests and performance
criteria in European Standard EN55103 (1996) parts 1 and 2, for
residential (E1) and light industrial (E2) environments.
REPLACEMENT PARTS
Omnidirectional Cartridge R183B
Supercardioid Cartridge R184B
Cardioid Cartridge R185B
Preamplifier Kit RK183PK
Replacement Cable Kit (black) C123
Replacement Cable Kit (white) C125
Figure 2
4.158 cm
(1.637 in.)
2.921 cm
(1.150 in.)
5.304 cm
(2.088 in.)
3.175 cm
(1.250 in.)
1.905 cm (.750 in.)
7.940 cm
(3.126 in.)
SIDE (3/4 SCALE) S CÔTÉ (ÉCHELLE 3/4) S SEITENANSICHT (MASSSTAB 3:4) S
COSTADO (ESCALA: 3/4 DE TAMAÑO REAL) S VISTA LATERALE (SCALA 3/4)
BOTTOM (ACTUAL SIZE) S DESSOUS
(GRANDEUR NATURE) S UNTERSEITE
(ORIGINALGRÖSSE) S LADO INFERIOR
(TAMAÑO REAL) S VISTA DAL BASSO (AL VERO)
DIMENSIONS