Shure MX393, MX392 User Manual
MX392-MX392BE-MX393
Remove Grille
Remove Bracket
Cartridge
R183
R184
R185
Omnidirectional
Supercardioid
Cardioid
Boundary Microphones
Shure Microflex® MX300 Series microphones are
surface-mounted electret condenser microphones
designed primarily for mounting on conference tables, stage floors, and lecterns. Their high sensitivity and wide frequency range make them especially suitable for picking up speech and vocals in
sound reinforcement and recording applications.
Interchangeable cartridges provide the installer
with greater flexibility and make it possible to easily reconfigure microphone coverage as the need
arises. The MX392 and MX393 models include an
internal preamplifier.
MX300 Series microphones take advantage of
the principle that, at a barrier or boundary, the
sound pressure level doubles. When placed near
a sufficiently large boundary surface, the microphone has 6 dB higher sensitivity and approximately 3 dB greater direct-to-reverberant sound
ratio.
Features
The MX392, MX392BE, and MX393 feature programmable logic input and output. Additionally
they provide following benefits:
• Flat frequency response across the vocal
range for uncolored sound
• Interchangeable cartridges that provide a
choice of polar pattern for each application
• Sleek, low-profile design for surface mounting
• Programmable mute button
• LED indicator
• Logic input/output for remote control or use
with automatic mixers
• RF filtering
Model Variations
MX392: Attached, unterminated cable.
MX392BE: Attached, unterminated cable
configured at the factory for bottom exit.
MX393: Detachable cable with XLR output
connector.
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 installations.
Cartridge Polar Patterns
Permanent Installation
MX392 and MX393
1. Remove grille to access mounting key holes.
2. Cut slots into pads.
3. Slide microphone forward to engage screws in
slots.
Note: If using rear side-exit cable option, only drill
two outer holes.
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.
12.7 mm
(1/2 in.)
MX392BE/C
MICROFLEX
MX392BE
Once placement has been determined, the microphones can be permanently installed. First, drill the
hole in the selected area to allow the bottom entry cable to be conveniently routed out of sight. Then
use the pressure sensitive adhesive to keep the microphone firmly in place.
Drilling the hole:
1. Determine the cutting area for the bottom exit cable and drill a 1/2" (12.7 mm) circular hole.
Remove all debris from the mounting surface.
2. Route the cable through the drilled hole.
3. Connect the integrated XLR cable to a mixer or P.A. system.
Re-Routing Cable for Bottom
Exit (If your MX392 is not BE
configured)
1. Remove the grille.
2. Disconnect wires from screw terminals.
3. Grasp rubber boot within 1/2" of housing, using gas pliers. Rotate boot and cable ccw to
remove connector from threaded "L" bracket.
4. Remove cable from microphone housing.
5. Insert cable through access hole in microphone base.
6. Insert cable connector through hole and
thread it into "L" bracket.
7. If desired, rubber strain relief can be reattached to cable end or removed from cable
before fastening it to bracket.
8. Re-connect wires to proper screw terminals
on circuit board.
9. Insert supplied round rubber plug into unused
side cable exit.
10. Reinstall grille and foam screen.
11. Insert cable through hole in mounting
surface. Secure microphone to mounting
surface.
Pressure Sensitive Adhesive
1. Thoroughly clean the application area with
the included alcohol wipe. Removing the dust
will allow the microphone to adhere well.
2. Remove the adhesive backing and gently set
the microphone into position.
3. Once the microphone is in position, firmly apply pressure to the microphone.
Note: The pressure sensitive adhesive will be
extremely difficult to move once pressure has
been applied.
Bottom view of MX392BE/C with adhesive
pads
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