Shure Microflex MX395 User manual
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MX395 -- Low-Profile Boundary Microphone
General Description
Shure MX395 low-profile microphones are for use in boardrooms and other sites where aesthetics are important.
The MX395 is only 2.5 cm (1 in.) in diameter, and extends just 2 cm above the mounting surface when installed.
Despite its small size, the MX395 delivers clear, high quality sound.
Features
•Low profile, aesthetic design
•Wide dynamic range and smooth frequency response
•RF filtering with CommShield technology
•Available with logic-controlled bi-color status indicator
Model Variations
The MX395 is available in cardioid, omnidirectional, and bidirectional polar patterns, with or without an LED status
indicator, with a black, white, or aluminum finish.
Polar Patterns
The polar pattern is indicated by the molded grille.
Microphone Placement
For best low-frequency response and rejection of background noise, place the microphone on a large, flat surface,
such as a floor, table, or lectern.
To reduce reverberance, avoid reflective surfaces above or to the side of the microphone, such as beveled sides
of pulpits or overhanging shelves.
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DIP Switches
Set DIP Switch 1 up to engage the low cut filter, which attenuates frequencies by 6 dB per octave below 150 Hz.
Switch Down (default) Up
1 Full frequency response Low cut filter
2 -- --
Installation
Install the microphone into a tabletop as shown.
Important:
•Align indentation toward talker
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•Do not over tighten the wing nut, as this reduces shock isolation
LED Logic
For models equipped with an LED, use the included 5-pin XLR connector to wire the microphone to an automatic
mixer or other logic device.
Note: Connect the LED IN to the gate output to illuminate the LED when the channel is gated on.
Do not use the relay ports on Crestron and AMX devices. Use the I/O logic ports instead.
The LED logic may not function when connecting to devices that do not have internal "pull-up resistor" logic cir-
cuits, such as ClearOne DSP products. External pull-up resistor circuits can be added for each microphone. Vistit
www.shure.com/FAQ for detailed instructions.
Logic Connection
Connection to device with internal "pull-up resistor" logic circuit
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LED Indicator Response to Logic Signal at Pin 5
Pin Assignments
3-Pin XLR
5-Pin XLR
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Accessories
Furnished Accessories
Specifications
All measurements taken with microphone mounted on a wooden surface (76 x 76 cm)
Cartridge Type
Electret Condenser
Frequency Response
50–17000 Hz
Polar Pattern
MX395/O Omnidirectional
MX395/C Cardioid
MX395/BI Bidirectional
Output Impedance
170 Ω
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Output Configuration
Active Balanced
Sensitivity
@ 1 kHz, open circuit voltage
Cardioid −35 dBV/Pa (18 mV)
Omnidirectional −28 dBV/Pa (42 mV)
Bidirectional −37 dBV/Pa (14 mV)
1 Pa=94 dB SPL
Maximum SPL
1 kHz at 1% THD, 1 kΩ load
Cardioid 121 dB
Omnidirectional 114 dB
Bidirectional 123 dB
Equivalent Output Noise
A-weighted
Cardioid 28 dB SPL
Omnidirectional 21 dB SPL
Bidirectional 29 dB SPL
Signal-to-Noise Ratio
Ref. 94 dB SPL at 1 kHz
Cardioid 66 dB
Omnidirectional 73 dB
Bidirectional 65 dB
Dynamic Range
1 kΩ load, @ 1 kHz
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Cardioid 93 dB
Omnidirectional 93 dB
Bidirectional 94 dB
Common Mode Rejection
10 to 100,000 kHz
45 dB, minimum
Preamplifier Output Clipping Level
at 1% THD
−8 dBV (0.4 V)
Logic Connections
LED IN Active low (≤1.0V), TTL compatible. Absolute maximum voltage:
-0.7V to 50V.
Net Weight
136 g (0.30 lbs)
Environmental Conditions
Operating Temperature –18–57°C (0–135°F)
Storage Temperature –29–74°C (–20–165°F)
Relative Humidity 0–95%
Power Requirements
MX395 11–52 V DC, 2.0 mA
MX395-LED 48–52 V DC, 8.0 mA
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MX395/C
MX395/BI
MX395/O
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Certifications
This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.
The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Fax: +49-7262-92 49 11 4
Email: [email protected]
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