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Neumann.Berlin M 150 Tube Mode D'emploi page 2

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  • FR

Les langues disponibles

  • FRANÇAIS, page 7
1. Introduction
This manual contains essential information for the
operation and care of the products you have pur-
chased. Please read the instructions carefully and
completely before using the equipment. Please
keep this manual where it will be accessible at all
times to all current and future users.
Additional information, in particular concerning
available accessories and Neumann service
partners, can always be found on our website:
www.neumann.com. Information about service
partners can also be obtained by telephone:
+49 (0) 0 / 41 77 4 - 0.
The following related files are available in PDF
format in the Downloads section of our website
www.neumann.com:
Operation with Unbalanced or Center Tap
Grounded Inputs
Some Remarks on Microphone Maintenance
The Neumann online forum on our website en-
ables Neumann users worldwide to share their
experiences. Through its integrated archive func-
tion, the forum has developed into an extensive
knowledge pool.
2. Safety instructions
The microphone and the accompanying power
supply equipment have the intended purpose
of converting acoustic signals into electrical
signals.
C onnect the microphone only to power supply
equipment that has been approved by Neumann
for this purpose. Connect the output of the
power supply equipment only to devices which
have an input that is suitable for microphones.
Repairs and servicing are to be carried out only
by experienced, authorized service personnel.
Unauthorized opening or modification of the
equipment shall void the warranty.
H igh operating voltages are required for the
tube in the microphone. Contact with the volt-
ages present in the interior of the device can
result in injury or death; therefore, the micro-
phone and power supply must be opened only
by authorized, qualified personnel.
EN

T he microphone must be operated only with
the supplied microphone cable or with a cable
of the same type. Since hazardous voltages are
generated by the power supply that can result
in injury or death, always ensure that the mi-
crophone cable used is undamaged. Damaged
cables must no longer be used, and must be dis-
abled in order to prevent injury to persons as a
result of accidental use.
Use the equipment only under the conditions
specified in the "Technical data" section. Allow
the equipment to adjust to the ambient tempera-
ture before switching it on. Do not operate the
equipment if it has been damaged during trans-
port.
Always run cables in such a way that there is no
risk of tripping over them.
Unless required for operation, ensure that liquids
and electrically conductive objects are kept at a
safe distance from the equipment and its connec-
tions.
Do not use solvents or aggressive cleansers for
cleaning purposes.
Dispose of the equipment in accordance with the
regulations applicable to the respective country.
3. Brief description
The M 150 Tube is a condenser studio microphone
with transformerless circuit technology.
The microphone operates as a pressure trans-
ducer, with an omnidirectional directional char-
acteristic.
Key features include exceptionally clean sound
transmission which is free of coloration, with ex-
tremely low self-noise and an extensive dynamic
range.
The input stage consists of a vacuum tube, which
lends its characteristic sound quality to the mi-
crophone.
The microphone has a titanium diaphragm, which
exhibits an extremely fast transient response due
to its small mass.
The diaphragm of the M 150 Tube is mounted flush
with the surface of a plastic sphere. Due to the
favorable pressure build-up and deflection char-
acteristics of the sphere, the change of frequency
response relative to the angle of incidence of the
sound is significantly smoother than is the case
with cylindrical capsules.
Typical applications of the M 150 Tube include
use in orchestral recording as a main pair in AB
technology and as a spot microphone. In surround
recording, it is usually used in Decca tree forma-
tion for larger ensembles.
The design features of this microphone permit de-
tailed recording even of very soft sounds down to
the low bass range.
A switchable high-pass filter increases the lower
cutoff frequency from 16 Hz to 40 Hz.
The pre-attenuation switch reduces the micro-
phone sensitivity by 10 dB, thus allowing the pro-
cessing of very high sound pressure levels.
4. Scope of delivery
M 150 Tube:
M 150 Tube microphone
N 149 A power supply unit with power cable
EA 170 elastic suspension
KT 8 microphone cable
Operating manual
Aluminum case
M 150 Tube Stereo Set:
 x M 150 Tube microphones
 x N 149 A power supply units with power
cables
 x EA 170 elastic suspensions
 x KT 8 microphone cables
Operating manual
Aluminum case
5. Setup
A ttention: This microphone should be used
indoors only. After use the microphone should
be kept protected from dust.
Mounting the microphone
Attach the microphone to a stable, sturdy stand.
Use an elastic suspension, if necessary, for the
mechanical suppression of structure-borne noise.
For this purpose set the microphone into the inner
cage from above, and secure it to the inner cage
with the threaded nut. If required, use a wind-
screen or popscreen from our range of accessori-
es in order to suppress wind or pop noise.
Connecting the microphone
Caution: An i ncorrect supply voltage can dam-
age the microphone!
Attach the microphone only to power supply
equipment which has been approved by Neumann
for this purpose.
Caution: Very loud noise can damage loud-
speakers or your hearing!
Minimize the volume of connected playback and
recording equipment before connecting the mi-
crophone and the power supply unit.
Ensure that the power supply unit is switched off.
Using the supplied 8-pin microphone cable, con-
nect the microphone to the microphone input of
the power supply unit.
Up to approximately 00 m, the total distance
from the microphone to the subsequent amplifier
input has no effect on the frequency response.
However, the length of cable between the micro-
phone and the power supply unit should not ex-
ceed 100 m. A sensor compensates for the drop in
the supply voltage.
Using a suitable cable, connect the output of the
power supply unit to the microphone input of the
audio equipment to be used for further process-
ing. Information concerning connector assign-
ment can be found in the "Technical data" sec-
tion.
The power supply unit can also be connected
without difficulty to an input in subsequent equip-
ment that has 48 V of phantom power. However,
the phantom power is not required. In this case,
there will be a load current of approximately
1 mA.
Using the supplied connecting cable, connect the
power supply unit to the power supply line. Ensure
compliance with the instructions in the separate
operating manual for the power supply unit.
When connecting the cables, ensure that the con-
nectors are locked correctly. Run the cables in
such a way that there is no risk of tripping over
them.
Switch on the power supply unit. A sensor in the
power supply unit will ensure that the operating
voltages are not activated until the microphone
is connected and operational. The switch light of
the power supply unit, instead of glowing faintly,
will then begin to shine brightly.
EN


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