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MICROPHONE MANUAL
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sE Electronics Microphone Manual
Thank you for purchasing an sE Electronics microphone, which was was hand-built in one of the most
advanced microphone manufacturing facilities in China. Designed by a team of extremely experienced
engineers and veried by extensive listening tests, each model (with a few application-specic
exceptions) utilizes gold-sputtered, ultra-light mylar diaphragms in an advanced capsule design. Your
microphone was constructed using the nest quality electronic components and extensively tested to
provide you with years of trouble-free operation.
Specications
Specications for all of our microphones can be found on our website: http://www.seelectronics.com
Pickup Patterns
There are two basic microphone directional patterns, omnidirectional, which picks up sound equally from
all directions, and gure-of-eight, which picks up from both the front and rear of the microphone but not
from the sides. Combining these two basic patterns creates a cardioid or directional response, which
simply means the microphone is most sensitive in one particular direction. By varying the way in which
the omnidirectional and gure-of-eight patterns are combined, varying widths of cardioid pattern can be
created.
Cardioid
Cardioid pattern microphones are popular for general-purpose recording as they can be directed
at the wanted sound source while offering a measure of rejection to sounds approaching the
microphone from the rear, and to a lesser extent, the sides.
Where several musicians are playing together, this reduces the amount of crosstalk between the
microphones. Cardioid pattern microphones also pick up less of the ‘room sound’, which results
in a clearer, less ‘coloured’ recording. Note that cardioid microphones belong to the category of
‘pressure gradient’ microphone as their output signal depends on the differences in air pressure
between the front and rear of the capsule.
All pressure gradient microphones exhibit some degree of proximity effect, which simply means
that there is a signicant rise in their bass response if they are used very close to the sound
source. This can be countered by using the low-cut switch on the microphone or microphone
preamplier.
Variations on the cardioid theme range from wide cardioid to hypercardioid.
Hypercardioid has a narrower pickup pattern than the normal cardioid response but is more
sensitive to sounds coming directly from the rear.
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sE Electronics Microphone Manual
Omnidirectional
Omnidirectional mics are pressure-operated devices, which means they respond directly to
changes in air pressure. They are equally sensitive in all directions and do not exhibit the
proximity bass boost effect inherent in pressure-gradient microphones. Omnidirectional
microphones sound very “natural” and are used where there is a need to capture the sound of a
room’s acoustics or where there are several musicians or singers performing together. Spaced
omni microphones are often used for the stereo recording of choirs and ensembles.
Figure-of-Eight
Also a pressure gradient (directional) microphone, the gure-of-eight pattern is produced by a
diaphragm open to the air on both sides and gets its name because its polar pattern looks like
two identically sized circles in contact with each other. Sound arriving from the side reaches
both sides of the diaphragm at the same time, which results in the air pressure on both sides
of the diaphragm being equal, so there’s no movement of the diaphragm and consequently no
electrical output. Conversely, on-axis sounds produce the maximum pressure differential and
hence the maximum output. Figure-of-eight microphones are used in specialist stereo recording
applications and also where it is useful to have a high degree of rejection from 90 degree off-axis
sound.
Care and Maintenance
Though capacitor microphones are now far more rugged than in the era of the so-called ‘classic’ models,
care must still be taken with all capacitor models to avoid damp conditions, humidity or excessive
dust and cigarette smoke. Microphones brought into a warm studio from a cold vehicle, for example,
may suffer condensation on the diaphragm and circuitry, which will compromise the performance of
the microphone until it has completely dried out. It is also important not to subject the microphone to
excessive shocks, such as dropping it onto a hard surface.
Microphones may cleaned using a damp cloth but solvents or thinners should not be used. It is also
important not to use contact cleaners or other aerosols close to the capsule as this may impair
operation.
Mic cables and connectors should be checked regularly for damage. If the cable connecting a tube
microphone to its power supply is damaged, contact your local service agency for a replacement and
under no circumstances attempt to use a cable of a different type as this could damage the microphone
circuitry and/or power supply, and also risk electric shock.
Never run a tube microphone power supply with the ground disconnected as this presents the risk of
electric shock. Do not open the microphone case or the power supply case when the power supply is
connected to the mains supply as there are potentially lethal voltages inside.
If a capacitor microphone produces intermittent noise or spluttering sounds, it is probably suffering
from condensation and should be dried out in a warm place before further use. Do not attempt to
service a microphone yourself as this will void the warranty and may cause serious damage. These
considerations apply to all capacitor microphones.
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Using Your Microphone
Many models come with a precision-built exible shock mount to minimize the effect of oor-borne
vibrations reaching the microphone through the stand. When recording vocals at close range, you
should use an external mesh pop screen to prevent low frequency thumps caused by air expelled from
the mouth on certain syllables. Your pop screen should be placed midway between the singer’s mouth
and the microphone for close-miked vocals but should not be necessary when using the microphone
to record voices more than 1 metre from the microphone or when recording musical instruments. To
avoid room reections, microphones should be set up away from hard walls and surfaces - or if this is
unavoidable, a Reexion Filter™ can come in handy.
Pad Switch
Where a pad switch is tted, this should only be used when the microphone is being used to record
exceptionally loud sound sources that risk overloading the microphone preamplier to which the
microphone is connected, even when set to its minimum gain setting.
Low Cut
Where tted, the Low Cut switch activates a high-pass lter that reduces the amount of low
frequencies in the output signal from the microphone. Low Cut may be used to reduce the amount of
bass boost caused by the proximity effect when working very close to the microphone or to to exclude
low frequency signals, such as trac and oor vibrations where the signal being recorded has little or
no deep bass content.
Operating your microphone
All capacitor microphones, other than tube models, require a phantom power supply (48V nominal),
normally provided by the mixing console or mic preamp to which the microphone is connected.
Phantom power can only be used with balanced microphones and balanced cables and will not cause
damage to dynamic microphones plugged into the same mixing console providing they are balanced
and connected using balanced cables.
Switch on the phantom power supply after connecting the microphone as repeated plugging and
unplugging of a microphone with the phantom power switched on may eventually degrade the
components in your microphone preamplier or mixing console.
Before switching on any tube microphone for the rst time, ensure that the mains voltage selector is
set correctly for the local mains supply. Tube microphones should also be switched on 30 minutes
prior to use to achieve optimum performance.
Accessories
For information on available accessories (pop shields, mic stands, etc), please visit our website.
www.seelectronics.com
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Safety Precautions
PLEASE READ THESE NOTES CAREFULLY
BEFORE USING YOUR MICROPHONE
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death
from electrical shock, short circuiting, damages, re or other hazards. These precautions include the
following:
• The power supply (if included with this microphone) contains no user-serviceable parts. Do not attempt to
disassemble or modify the internal components of the power supply in any way.
• Do not expose the microphone to rain, use it near water or in damp or wet conditions.
• If the power cord or plug becomes frayed or damaged, or if there is a sudden loss of sound during the use
of the microphone or any unusual smells or smoke should appear to be caused by it, turn the power switch
off immediately, disconnect the mains plug from the wall and have your microphone inspected by a qualied
technician.
• Only use the voltage as specied as correct for the microphone supply.
• Always attached the three-pin attachment plug for the power supply to a properly grounded power source.
• Check the mains plug periodically and remove any dirt or dust that may have accumulated on it.
• Do not place the power cord near heat sources such as heaters or radiators and do not excessively bend
or otherwise damage the power cord, place heavy objects on it or place it in a position where anyone could
walk or trip over, or roll anything over.
• When removing the power cable from either the power supply or the wall outlet, please do not jerk or pull on
the power cord. Always remove the cord by holding the plug itself.
• Always connect the power supply to a direct outlet and not an extension cord. Doing so may result in an
inadequate power supply for the unit to operate at specied levels.
• Always remove the plug from the outlet when the power supply is not in use for extended periods of time
(longer than two weeks). Also remove the plug from the outlet during any electrical storm.
• Do not expose the microphone or power supply to any excessive dust or vibrations or extreme cold or heat.
This includes but is not limited to: a car on a hot day, direct sunlight for long periods of time or near a heater
or a radiator.
• Our power supplies are made for international use, so they all come with a voltage switch. This switch
can be located on the back of the unit next to the on/off switch. You will have a selection between 115V or
230V. Please make absolutely sure that you have the correct voltage selected for your outlet as a mistake in
selection could cause serious damage to the power supply and/or the microphone that is connected.
• sE Electronics cannot be held responsible for any damage caused by improper use or modications of the
microphone or power supply.
• sE Electronics cannot provide schematics, wiring diagrams or any other technical documents to anyone
outside of our distribution partners and authorized sE repair centers.
For support or service, please contact your local sE distributor
or email support@seelectronics.com
Microphone Manual
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