Neumann TLM 50 Bruksanvisning
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1. Introduction
This manual contains essential information for the
operation and care of the product 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 concern-
ing 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) 30 / 41 77 24 - 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 has the intended purpose of con-
verting acoustic signals into electrical signals.
Connect the microphone only to microphone in-
puts and devices which supply 48 V of phantom
power in accordance with IEC 61938.
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.
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.
•
•
EN
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 TLM 50 is a condenser studio microphone
with transformerless (TLM) 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 diaphragm of the TLM 50 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.
The directivity also exhibits an exceptionally lin-
ear increase as the frequency increases.
The microphone has a titanium diaphragm, which
exhibits an extremely fast transient response due
to its small mass.
A switchable high-pass filter increases the lower
cuto frequency from 30 Hz to 100 Hz.
The pre-attenuation switch reduces the micro-
phone sensitivity by 10 dB, thus allowing the pro-
cessing of very high sound pressure levels.
Typical applications of the TLM 50 include use in
orchestral recording as a main pair in AB technol-
ogy. In surround recording, it is usually used in
Decca tree formation for larger ensembles.
4. Scope of delivery
TLM 50 Set:
TLM 50 microphone
MNV 87 mt auditorium hanger
IC 4 mt microphone cable with stand mount
Operating manual
Dust cover
Wooden box
•
•
•
•
•
•
4
EN
7. Troubleshooting
Problem
▶
Possible causes
▶
Solution
Microphone
not operating
The phantom power supply voltage is not
switched on at the mixing console or at the
power supply equipment.
Check the corresponding channel settings.
The power supply equipment is not con-
nected to the power supply line or there is
no battery.
Check the connection to the power supply
line or check the battery of the power supply
equipment.
No signal
transmission
The microphone is not connected to the
correct microphone amplifier input of the
subsequent equipment.
Check the signal path.
If necessary, activate the appropriate input
on the corresponding channel of the mixing
console.
8. Technical data and
connector assignments
Permissible atmospheric conditions:1)
Operating temperature range ......... 20 °C ... +70 °C
Storage temperature range ...............0 °C ... +70 °C
Humidity range ..................... 0 % … 90 % at +20 °C
0 % … 85 % at +60 °C
Acoustical oper. principle......Pressure transducer
Directional pattern ....................... Omnidirectional
Frequency range ...............................20 Hz...20 kHz
Sensitivity2) ....................................20 mV/Pa ± 1 dB
with preattenuation ...............................6.3 mV/Pa
Rated impedance ........................................50 ohms
Rated load impedance ..........................1000 ohms
Signal-to-noise ratio3),
CCIR4) ...............................................................68 dB
Signal-to-noise ratio3),
A-weighted4) ....................................................81 dB
Equivalent noise level,
CCIR4) ................................................................26 dB
Equivalent noise level,
A-weighted4) ................................................. 13 dB-A
Max. SPL for 5)
less than 0.5 % THD...................................... 136 dB
with preattenuation ..................................... 146 dB
Max. output voltage ...................................... 10 dBu
Supply voltage6) ....................................... 48 V ± 4 V
Current consumption6) .....................................3 mA
Matching connector .......................................XLR3F
Weight ............................................................. 490 g
Dimensions ................................Ø 56 mm x 145 mm
94 dB SPL equiv. to 1 Pa = 10 µbar
0 dB equiv. to 20 µPa
The microphone has a balanced, transformerless
output. The 3-pin XLR connector has the following
standard pin assignments:
Pin 1: 0 V/Ground
Pin 2: Modulation (+phase)
Pin 3: Modulation (–phase)
1)
All values for non-condensing humidity. The values are
valid for clean and well-looked-after microphones or
microphone capsules, respectively. Any kind of pollution
of capsules and membranes may restrict the said values.
2)
at 1 kHz into 1 kohms rated load impedance.
3) re 94 dB SPL
4) according to IEC 60268-1;
CCIR-weighting acccording to CCIR 468-3, quasi peak;
A-weighting according to IEC 61672-1, RMS
5) THD of microphone amplifier at an input voltage
equivalent to the capsule output at the specified SPL.
6) Phantom powering (P 48, IEC 61938).
Produktspecifikationer
| Varumärke: | Neumann |
| Kategori: | mikrofon |
| Modell: | TLM 50 |
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