GENERAL
Shure Microflex
MX400 Series microphones are miniature
gooseneck-mounted electret condenser microphones de-
signed 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 omnidirectional cartridges.
FEATURES
Wide dynamic range and frequency
response for accu-
rate sound reproduction across the audio spectrum
Interchangeable cartridges provide the right polar pat-
tern for every application
Balanced, transformerless output for increased immunity
to noise over long cable runs
Shock mount that provides over 20 dB isolation from sur-
face vibration noise
Locking flange mount for permanently securing micro-
phone to lecterns, pulpits, or conference tables
Snap-fit foam windscreen
MODEL VARIATIONS
MX412: 305 mm (12 in.) gooseneck microphone.
MX418: 457 mm (18 in.) gooseneck microphone.
MX412S: 305 mm (12 in) gooseneck microphone; in-
cludes a mute switch and an LED.
MX418S: 457 mm (18 in) gooseneck microphone; in-
cludes a mute switch and an LED.
SELECTING A POLAR PATTERN
All Microflex
microphones are available with any one of
three interchangeable cartridges. The polar pattern of the car-
tridge is indicated by the model number suffix:
/C = Cardioid, /S = Supercardioid, /O= Omnidirectional
Cardioid (C). Recommended for general sound rein-
forcement applications. Pickup angle (–3 dB) = 130
°
.
Supercardioid (S). Recommended for sound rein-
forcement applications requiring narrow or more distant
coverage. Pickup angle (–3 dB) = 115
°
.
Omnidirectional (O). Recommended for recording or re-
mote monitoring applications. Pickup angle = 360
°
.
GENERAL INSTALLATION GUIDELINES
1.
Aim the microphone toward the desired sound source,
such as the talker, and away from any unwanted sound
source, such as a loudspeaker.
2.
Place the tip of the microphone within 15 to 30 cm (6 to
12 in.) of the desired sound source.
3.
Always use the supplied windscreen or the optional met-
al windscreen to control breath noise.
4.
If four or more microphones will be open at the same time,
use of an automatic mixer, such as the Shure SCM810
or FP410, is recommended.
MICROPHONE INSTALLATION
Installing a Microphone in a Mounting Flange (Figure 1)
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 bot-
tom of the flange. Then press the ring firmly into place.
5.
Secure the flange to the mounting surface with three
screws.
Installing a Microphone in a Shock Mount (Figure 2)
1.
Drill a 44 mm (1-3/4 in.) diameter hole in the desired
location.
2.
Trace and drill three starter holes for the screws using
the shock mount as a template.
3.
Secure the shock mount to the mounting surface with
three screws.
Installing the Foam Windscreen (Figure 3)
1.
Press the foam windscreen onto the microphone until it
snaps into the groove located below the cartridge.
2.
To remove the windscreen, spread the gap in its mounting
ring with a screwdriver or thumbnail and pull the wind-
screen off carefully.
Microflex
MX400S Series
User Guide
27C2830 (TD)
2000, Shure Incorporated
Printed in U.S.A.
