Neumann.Berlin bcm 104 Microphone User Manual


 
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Series 180
Delivery Range
KM183 (mt) ... 185 (mt) Microphone, WNS100
Windscreen, SG21bk Stand mount
Stereo set:Stereo set:
Stereo set:Stereo set:
Stereo set: 2x KM183 (mt) ... 185 (mt)
Microphone, 2x WNS100 Windscreen,
2x SG21bk Stand mount, Wooden box
Catalog No.
KM 183...........................................................ni........008437
KM 183 mt...................................................blk.....008438
KM 183 Stereo set..................................ni ........008522
KM 183 mt Stereo set..........................blk.....008521
KM 184...........................................................ni........008439
KM 184 mt...................................................blk.....008389
KM 184 Stereo set..................................ni ........008524
KM 184 mt Stereo set..........................blk.....008523
KM 185...........................................................ni........008440
KM 185 mt...................................................blk.....008441
KM 185 Stereo set..................................ni ........008526
KM 185 mt Stereo set..........................blk.....008525
Selection of Accessories
Elastic suspension,
EA 2124 A mt.............................................blk.....008433
Auditorium hanger, MNV21mt.....blk .....006802
Popscreen, PS15.......................................blk .....008472
Windscreen, WS 100.............................blk .....006751
A complete survey and detailed descriptions
of all accessories are contained in the
accessories catalog.
Meaning of color codes: blk = black, ni = nickel
Economy
The “Series 180” is a good choice for all users
who look for a high-quality miniature micro-
phone, but do not need the complex, modular
KM100 system, which continues to be part
of the Neumann product range.
The mechanical construction was simplified,
for example, capsule and output stage cannot
be separated from each other. For this reason
the “Series180” is an economical alternative
without giving up the electroacoustic features
the users expect from Neumann microphones.
The pressure gradient transducers KM 184 and
KM185 feature very smooth frequency re-
sponses not only for the 0° axis, but also for
lateral (off-axis) sound incidence. In typical
usage, there is no coloration of sound over a
wide pickup angle.
Although the KM184 has the same capsule
as the KM84, the microphone differs slightly
on the 0° frequency response: The KM184
has a gentle rise at about 9 kHz, a characteris-
tic that was introduced very successfully with
the KM 140. The result is a tonal balance that
is fresher and livelier when compared to the
KM 84 with its flat frequency response in that
band.
This difference was achieved with just a slight
change of the capsule’s rear opening, and is not
due to resonances.
The KM 185 with its hypercardioid character-
istic features attenuation of sound incidence
from the side or rear of about 10 dB, with min-
imum sensitivity at an angle of 120°.
Electrical features
The “Series180” microphones have the same
transformerless circuitry as is used in the
KM 100 system, resulting in excellent technical
specifications: Compared to the KM 84 the dy-
namic range of the KM 184 increased by 24 dB
mainly through the reduction of self-noise level
to only 22 dB (CCIR) and an increased sound
pressure handling capability of up to 138 dB.
The microphones operate without any prob-
lems, even if the input of following equipment
happens to be unbalanced, for example as in
some DAT recorders.
The output of the “Series 180”, as in all Neu-
mann microphones, is balanced and phantom
(48V) powered.