Shure MX393 Manual

MX392-MX392BE-MX393
Boundary Microphones
Shure Microflex MX300 Series microphones are
®
surface-mounted electret condenser microphones
designed primarily for mounting on conference ta-
bles, stage floors, and lecterns. Their high sensi-
tivity and wide frequency range make them espe-
cially 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 eas-
ily 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 micro-
phone has 6 dB higher sensitivity and approxi-
mately 3 dB greater direct-to-reverberant sound
ratio.
Features
The MX392, MX392BE, and MX393 feature pro-
grammable 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 indi-
cated by a model number suffix:
/C Cardioid
/S Supercardioid
/O Omnidirectional
/N Cartridge not included
Interchangeable Cartridges
Remove Grille
Cartridge
Remove Bracket
Microflex microphones use interchangeable car-
tridges that allow you to choose the polar pattern
for different installations.
Omnidirectional
R183
Supercardioid
R184
Cardioid
R185
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.