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EN 99 EN
well as the two-channel Dig ital Microphon e Inter-
face (DMI-2) with the accompanyin g RCS control
software for remote controlling all microphone
characteristics (see also the “Technical data” sec-
tion).
The consumption of power resul ts in slight warm-
ing of the microphone, which incr eases with
shorter cable lengths and hi gher sampling rate s.
4. Setup
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 micropho ne into the inner
cage from above, and secure it to the inner cage
with the threaded nut. If requ ired, use a wind-
screen or popscreen from our r ange of accesso-
ries in order to suppress win d or pop noise.
Connecting the microphone
Caution: An incorrect supply voltage can dama-
ge the microphone!
Connect the microphone to microphone inputs
and to equipment which supplies ph antom pow-
er in accordance with AES 4 2. See also chapter
“Safety Instructions”.
Caution: Very high signal levels can damage
loudspeakers and your hearing!
Reduce the volume of connected playback equip-
ment before connecting the microphone. This is
also advisable in order to avoid acoustic feed-
back.
Connect the microphone by mean s of an XLR cable
to the AES 42 microphone inpu t of the DMI-2 Digi-
tal Microphone Interface, to the Neumann con-
nection kit or to other audio e quipment along to
AES 42 standard.
Concerning the connectio n of DMI-2 and Connec-
tion Kits with your audio device please consult
the respective operating manuals.
With a correct power supply, a blue L ED on the mi-
crophone indicates that the microphone is ready
to operate. When the microphone is switched
on, the LED at fi rst glows dimly, and after a short
time shines with the preset brightness. When the
DMI-2 Digital Microphone In terface is used, the
LED can be set to four diff erent brightness levels
and switched off by means of the Remote Control
Software.
When connecting the cables, ensure that the con-
nectors are locked correc tly.
Address the microphone from the side on which
the Neumann logo is located.
Gradually increase the volum e of the connected
equipment.
Long cable s and m ultip le con nect ors le ad to d ete-
rioration in jitter behavior, particularly in the case
of high sampling rates. Therefore, to the greatest
extent possible, use continuous cable between
the microphone and subsequent equipment, and
for longer distances use AE S/EBU cable excl usive-
ly (with an impedance level of 110 ohms).
Ensure that the microphone and al l equipment in
the digital signal chain are sy nchronized. If the
Neumann Digital Micropho ne Interface is used,
the connected microphone s should always be
operated in synchronous mode, whether or not
sample rate converters are us ed in the subse-
quent signal chain. This w ill ensure very e ff ective
jitter suppression in the DMI (as o f hardware ver-
sion 3). The output of two micropho ne signals in
an AES 3 stereo signal is also possible only if the
microphones are synchronized with one another.
Sound test
Simply speak into the microphone. Do not blow
into the microphone or subject it to pop noise,
since this can easily result in ha zardous sound
pressure levels.
Parameters which can be remote c ontrolled
via the AES 42 interface
Low Cut: Acccording to AES 42 there are four set-
tings for the low cut: off , 40 Hz, 80 Hz and 160 Hz.
Pre-attenuation: Pre-attenuation is achieved by
reducing the capsule voltage. If pre-attenuation is
activated, the dynamic ran ge is shifted by the co r-
responding value to higher soun d pressure level s.
Gain: Gain is carried out exclus ively in the digital
domain, thus avoiding the additional noise and
possible eff ects on th e sound which can occur in
analog processing.
Peak limiter: The very fast peak limiter ha s an ad-
justable threshold, and prevents overloading or
clipping of the audio signal in the sig nal path.
Compressor/Limiter: A compress or/limiter with
completely adjustable parameters is provided.
It can function in broad band mode, or as a high-
frequency compressor/limiter (de-esser) in one of
three selectable frequen cy ranges. All import ant
parameters are adjustable.
In addition, the sampling rate , the synchroniza-
tion mode, test signals, m ute, the polarity of th e
output signal and the LED can be co ntrolled re-
motely.
The software in the microphone can be updated
via the Neumann DMI-2. Therefor e future soft-
ware enhancements will also be available to ex-
isting customers. Please r efer to the RCS manual
for details concerning the upd ate process.
Suppressing noise interfer ence
The frequency response of t he TLM 103 D extends
below 20 Hz. The microphone is of c ourse corre-
spondingly sensitive to low-frequency interfer-
ence such as structure-b orne noise and wind or
pop noise. Depending upon the s ituation, the use
of an elastic suspension, a w indscreen and/or a
popscreen is therefore recommended.
5. Shutdown and Storage
Before switching off the microphone or discon-
necting the cables, redu ce the volume of con-
nected equipment.
When disconnecting a cable, always pull only on
the connector and not on the cab le itself.
Microphones which are unuse d for prolonged
periods should be stored under normal ambient
atmospheric conditions, and should be protected
from dust. For this purpose, use a l int-free, air-
permeable dust cover or the ori ginal packagi ng of
the microphone.
6. Technical data
Permissible atmospheric c onditions1)
Operating temperature ran ge ..........0 °C to +40 °C
Storage temperature range ...........–20 °C to +70 °C
Humidity range .....................0 % to 99 % a t +20 °C
0 % … 95 % at +60 °C
Acoustical op. princip le .............Pressure gradient
transducer
Directional
pattern ........................................................Car d i oid
Frequency range ............................20 Hz to 20 k Hz
Sensitivity2) ..............................................–39 dBFS
Equivalent noise level,
CCIR4) ............................................................17.5 dB
Equivalent noise level,
A-weighted4) ..................................................7 dB-A
Signal-to-noise rati o3),
CCIR4) ...........................................................76.5 dB
Signal-to-noise rati o3),
A-weighted4) ...................................................87 dB
Maximum SPL
at 0 dBFS3) ............................................. 134 dBSPL
Dynamic range
including capsule4) .......................................12 7 dB
A/D conversion ...........................Neumann proces s
(patented), 28-bit
internal word length
Digital signal processin g .....Fix ed-point, var iable
internal word length
28 bits to 60 bits
Sampling rates .................................44.1/48/88. 2/
96/176.4/192 kHz
Output data format ............................24 bits as per
AES/EBU (AES 3)
Sampling rates .................................44.1/48/88. 2/
96/176.4/192 kHz
Latency:
44.1/48 kHz ...........................................52 samples
88.2/96 kHz ...........................................61 samples
176.4/192 kHz ......................................121 samples
At 0 dB pre-attenuation a nd 0 dB gain.
1) All v alues are for n on-cond ensing mois ture.
2) at 1 kHz, and 94 db SP L
3) re 94 dB SPL
4) according to IEC 60268-1 ;
CCIR-weig hting accco rdin g to CCI R 468 -3, qu asi pe ak;
A-weighting accordin g to IEC 61672-1, R MS