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MX392 MX393 Microflex
Microphone
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Product Code: MX392 MX393
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MX392 and MX393
Microflex® Wired Boundary Microphones from Shure are equipped
with features like programmable, silent membrane switches, logic
inputs and outputs, and green LED indicators. The high-quality
solution for a range of applications such as altars, boardrooms and
distance learning centers, Microflex Boundary microphones feature
interchangeable condenser cartridges.
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MX392:
Surface-mount mic; LED logic input/switch logic output terminals,
screw terminal connections, attached unterminated
cable
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MX393:
Surface-mount mic; miniature three pin connector, 12' XLR
cable
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| Features |
- Flat frequency response across
the vocal range for uncolored sound
- Interchangeable cardioid,
supercardioid, and omnidirectional cartridges that provide optimal
choice for each application
- Sleek, low-profile design for
unobtrusive appearance
- Balanced, transformerless output
for increased immunity to noise over long cable
runs
- Programmable membrane on/off
switch plus LED on/off indicator
- LED logic input and switch logic
output terminals for remote control or use with automatic mixers
(MX392 models only)
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| Specifications |
- All measurements
taken with microphone mounted on a wooden surface 76.2 cm x 76.2 cm
(30 in. x 30 in.).
- Frequency
Response
50 to 17,000 Hz
- Polar Pattern
Cardioid (MX392/C, MX393/C)
Supercardioid (MX392/S, MX393/S)
Omnidirectional (MX392/O, MX393/O)
- Output
Impedance
EIA Rated at 150 ohms (180 ohms actual)
- Sensitivity (at 1
kHz, open circuit voltage)
Cardioid Cartridge: -27.5 dBV/Pa (42.2 mV)
Supercardioid Cartridge: -26.5 dBV/Pa (47.3 mV)
Omnidirectional: -22.0 dBV/Pa (79.4 mV)
1 Pascal=94 dB SPL
- Maximum Sound
Pressure Level (1 kHz at 1% Total Harmonic Distortion, 1 k ohm
load)
Cardioid: 117.0 dB
Supercardioid: 116.0 dB
Omnidirectional: 111.5 dB
- Signal to Noise
Ratio (referenced at 94 dB SPL)
Cardioid: 71.0 dB
Supercardioid: 72.0 dB
Omnidirectional: 76.5 dB
- Equivalent Output
Noise (A-weighted)
Cardioid: 23.0 dB SPL
Supercardioid: 22.0 dB SPL
Omnidirectional: 17.5 dB SPL
- Dynamic Range
94.0 dB
- Common Mode
Rejection
45 dB minimum, 10 Hz to 100 kHz
- Switch
Attenuation
50 dB minimum
- 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 output connector.
- Logic Connections
(MX392 Only)
LED IN: Active low (<1.0v), TTL compatible. Absolute maximum
voltage: -0.7V to 50V.
SWITCH OUT: Active low (<0.5V), sinks up to 20mA, TTL
compatible. Absolute maximum voltage: -0.7V to 24V (up to 50V
through 3 k ohms).
- Power
Requirements
11 to 52 Vdc phantom
2.0 mA current consumption
- Environmental
Requirements
Operating Temperature Range: -18 to 57 degrees C (0 to 135 degrees
F)
Relative Humidity: 0 to 95%
- Dimensions
See User Guide
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