Neumann M 149 Tube Handleiding

Neumann Microfoon M 149 Tube

Lees hieronder de 📖 handleiding in het Nederlandse voor Neumann M 149 Tube (19 pagina's) in de categorie Microfoon. Deze handleiding was nuttig voor 28 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

Download PDF

Pagina 1/19

   · .  ·   · 

  () /   - ·  - · @. · ..

M  T

O M 2

B 6

M ’ 10

I O 14

M   18

G 22

I  ’ 26

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 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) 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

enables 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.

Connect 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.

High 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.

•

The 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 dam-

aged during transport.

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 149 Tube is a condenser studio microphone

with transformerless circuit technology.

The microphone has the selectable directional

characteristics omnidirectional, cardioid, wide-

angle cardioid, hypercardioid and ﬁgure-8, as well

as four additional intermediate characteristics.

Key features include extremely low self-noise, an

extensive dynamic range and the full, rich, warm

sound of the tube.

Typical applications of this universally applicable

microphone include dubbing, broadcasting, and

vocal and instrumental recording.

With its ﬁne sound character gradations, the

microphone is particularly suitable for vocals and

broadcasting.

When the directional characteristic is changed,

an increased noise level may occur for a period

of approximately 30 seconds. This does not indi-

cate a malfunction, but arises due to the electri-

cal recharging of the microphone capsule to the

appropriate bias.

Setting the high-pass ﬁlter

On the back of the microphone is a slide switch for

a high-pass ﬁlter, with seven settings. The cuto

frequency (−3 dB) can be selected in half-octave

steps, from 20 Hz to 160 Hz. The high-pass ﬁlter

can be used to suppress low-frequency interfer-

ence (e.g. caused by impact sound or wind noise)

or to compensate for the proximity eect.

Suppressing noise interference

The frequency response of the M 149 Tube ex-

tends below 20 Hz. The microphone is of course

correspondingly sensitive to low-frequency inter-

ference such as structure-borne noise and wind

or pop noise. Depending upon the situation, the

use of a windscreen and/or popscreen is therefore

recommended.

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 hazardous sound

pressure levels.

6. Shutdown and storage

Before switching o the microphone or discon-

necting the cables, reduce the volume of con-

nected equipment.

Only then should the power supply equipment be

switched o.

Disconnect the cables.

When disconnecting a cable, always pull only on

the connector and not on the cable itself.

Microphones which are not in use should not be

allowed to remain on the stand gathering dust.

A microphone which is unused for a prolonged

period should be stored under normal atmo-

spheric conditions, and should be protected from

dust. For this purpose, use a lint-free, air-perme-

able dust cover or the original packaging of the

microphone.

7. Troubleshooting

Problem

▶

Possible causes

▶

Solution

Microphone

not operating

The power supply unit is not switched on. Check the connection to the power supply

line.

The microphone is not connected to the

power supply unit or is not ready for

operation.

Check the LED status on the power supply

unit.

No signal

transmission

The microphone is not connected to the

correct microphone ampliﬁer input of th

esubsequent equipment.

Check the signal path.

Check the corresponding channel settings.

8. Technical data and

connector assignments

Permissible atmospheric conditions:1)

Operating temperature range ........... 0 °C ... +70 °C

Storage temperature range ........... −20 °C ... +70 °C

Humidity range ..................... 0 % … 90 % at +20 °C

0 % … 85 % at +60 °C

Acoustical op. principle .............Pressure gradient

transducer

Directional pattern ........................................ Omni/

wide-angle cardioid/cardioid/

hyper-cardioid/ﬁgure-8 and 4 additional

intermediate patterns

Frequency range ...............................20 Hz...20 kHz

Sensitivity2) ................................. 34/47/62 mV/Pa

Rated impedance ........................................50 ohms

Rated load impedance ..........................1000 ohms

Signal-to-noise ratio4), CCIR5) ......... 66/69/71 dB3)

Signal-to-noise ratio4),

A-weighted5) ...................................... 78/81/83 dB

Equivalent noise level,

CCIR5) .................................................28/25/23 dB

Equivalent noise level,

A-weighted5) ...................................16/13/11 dB-A

Max. SPL (tube characteristic)6)

for THD < 0.5 % ............................................. 120 dB

for THD < 5 % ................................................. 136 dB

Product specificaties

Merk:	Neumann
Categorie:	Microfoon
Model:	M 149 Tube
Kleur van het product:	Nikkel
Soort:	Microfoon voor podiumpresentaties
Connectiviteitstechnologie:	Bedraad
Signaal/ruis-verhouding:	78 dB
Microphone direction type:	Omnidirectioneel
Aansluiting(en):	XLR3F
Frequentie microfoon:	20 - 20000 Hz
Microphone input impedance:	50 Ohm
XLR out:	Ja
Gewicht microfoon:	730 g
Dynamisch bereik:	121 dB
Afmetingen microfoon (DxH):	70 x 201 mm