Shure Microflex MX400 Series User manual

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MX400 Series -- Gooseneck Microphones
General Description
Shure Microflex MX400S Series microphones are miniature gooseneck-mounted electret condenser micro-
phones designed primarily for speech and vocal pickup. They can be mounted on lecterns, pulpits, or conference
tables. All models include a preamplifier and are available with interchangeable cardioid, supercardioid, or omnidi-
rectional cartridges.
MX400 microphones are available with 305 mm (12 in.) or 457 mm (18 in.) goosenecks, with or without a mute
switch. They are available in supercardioid, cardioid and omnidirectional polar patterns.
•"S" models include a mute button and LED.
•"D" models include a desktop base with programmable mute button and LED and logic input and output.
•"SE" models feature a surface mount flange with side-exit cable.
The polar pattern of the included cartridge is indicated by a model number suffix:
/C Cardioid
/S Supercardioid
/O Omnidirectional
/N Cartridge not included
Interchangeable Cartridges
Microflex microphones use interchangeable cartridges that allow you to choose the polar pattern for different in-
stallations.
®

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Snap-Fit Windscreen
•Snap into the groove below the cartridge.
•To remove, spread the gap with a screwdriver or thumbnail.
•Provides 30 dB of "pop" protection.
Preamp Gain
If necessary, the preamplifier gain can be reduced by 12 dB. Contact an authorized Shure service center for infor-
mation.

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Microphone Placement
•Aim the microphone toward the desired source, such as the talker.
•Aim it away from any unwanted source, such as a loudspeaker.
•Place the microphone within 15 to 30cm (6 to 12 in.) of the desired sound source.
•Always use the supplied windscreen or optional metal windscreen to control breath noise.
•If four or more microphones will be open at the same time, use of an automatic mixer, such as the Shure
SCM810 or SCM410, is recommended.
Permanent Installation
Mount the microphone using one of the following methods.
Flange
1. Drill a 22 mm (7/8 in.) diameter hole in the desired location.
2. Trace and drill three starter holes for the supplied screws using the flange as a template.
3. Insert the preamplifier through the mounting flange.
4. Slip the mounting flange retaining ring over the bottom of the preamplifier and slide it up until it is flush to the
bottom of the flange. Then press the ring firmly into place.
5. Secure the flange to the mounting surface with three screws.

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Shock Mount
1. Drill a 44mm(1-3/4 in.) diameter hole in desired mounting surface.
2. Mark and drill starter holes for screws, using shock mount as a template.
3. Secure shock mount to mounting surface with screws.
4. Thread the supplied adapter onto the MX400 microphone before inserting it into the shock mount.

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Specifications
Cartridge Type
Electret Condenser
Frequency Response
50–17000 Hz
Polar Pattern
MX412/C, MX418/C Cardioid
MX412/S, MX418/S Supercardioid

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Output Impedance
180 Ω
Output Configuration
Active Balanced
Sensitivity
@ 1 kHz, open circuit voltage
Cardioid –35 dBV/Pa(18 mV)
Supercardioid –34 dBV/Pa(21 mV)
1 Pa=94 dB SPL
Maximum SPL
1 kHz at 1% THD, 1 kΩ load
Cardioid 124 dB
Supercardioid 123 dB
Equivalent Output Noise
A-weighted
Cardioid 28 dB SPL
Supercardioid 27 dB SPL
Signal-to-Noise Ratio
Ref. 94 dB SPL at 1 kHz
Cardioid 66 dB
Supercardioid 68 dB
Dynamic Range
1 kΩ load, @ 1 kHz
96 dB
Common Mode Rejection
10 Hz to 100 kHz
45 dB, minimum

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Preamplifier Output Clipping Level
at 1% THD
–6 dBV (0.5 V)
Polarity
Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector
Mute Switch
MX412S/MX418S
–50 dB minimum
Environmental Conditions
Operating Temperature –18–57°C (0–135°F)
Storage Temperature –29–74°C (–20–165°F)
Relative Humidity 0–95%
Power Requirements
11–52 V DC, 2.0 mA

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Certifications
Meets essential requirements of all applicable European Directives.
Eligible for CE marking.
The CE Declaration of Conformity can be obtained from Shure Incorporated or any of its European representa-
tives. For contact information please visit www.shure.com
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

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Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: [phone]
Fax: [phone]
Email: [email protected]