Beyerdynamic MPR 211 Product Information

MPR 211

Kondensatormikrofon
Condenser Microphone
Microphone à condensateur

PRODUKTINFORMATION

PRODUCT INFORMATION

INFORMATIONS DE PRODUIT

MPR 211 – Contents

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1. Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3. Basic Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4. Operating Mode (Autonomous/Remote) . . . . . . . . . . . . 13

5. Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6. Microphone Positioning. . . . . . . . . . . . . . . . . . . . . . . . . 14

7. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

8. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

9. Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

10. Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

11. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 16

Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

MPR 211 – Condenser Microphone

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4. Operating Mode

ON/OFF

The microphone is turned on or off via a button. The LED will illuminate
red when the microphone is turned on.

PTM (Push-To-Mute)

The button operates as a cough button. The microphone is always
turned on. The LED will illuminate red. When you hold down the
button, the microphone is off and the LED will extinguish.

PTT (Push-To-Talk)

The microphone is on, as long as you hold down the button. The LED
will illuminate red. When you release the button, the microphone is
off. The LED will extinguish.

Output Level

The output level can be set to:
High, Mid, Low.

5. Connection

The MPR 211 provides a bare ended cable. The functions depend on
the selected operating mode Autonomous, Remote or External Logic.
For powering a phantom power between 24 or 48 V is required,
irrespective of the selected operating mode.
For more information, please refer to the wiring diagram.

Thank you for selecting the MPR 211 condenser microphone from
beyerdynamic. Please take some time to read carefully through this
product information before using the product.

1. Safety Information

• Protect the microphone from moisture and sudden impacts to
prevent damage. You could either injure yourself or others.

• Do not blow into the microphone, you could damage the transformer.
It is preferable to carry out a speech trial.

• When using wired microphones always ensure that the microphone
cable is laid so that it does not present a trip hazard.

2. Application

The MPR 211 is a modern desktop microphone, which is ideal for
discussions, tele/video conferencing and announcements.
The Revoluto technology with 17 integrated microphone capsules
provides a so-called corridor characteristic, which ensures a wide range
of good voice quality. Within this range the speaker can move freely,
i.e. he/she can stand up or sit down, move his/her head and move
towards or away from the microphone.
On the left hand side the MPR 211 provides an LED, which will
illuminate when the microphone is switched on.

3. Basic Function

Autonomous

With this function you can operate the microphone via the built-in or
external button.

Remote

With this function you can only operate the microphone via an
external button. The button on the front of the housing is deactivated.

External Logic

The function is used when operating the microphone with external,
logic controls. The microphone is always active. With this function the
internal logic with micro controller control is deactivated. A typical
application is for example the “Voice Activation” mode in conjunction
with a digital audio matrix.

Switch to select the
basic function

Switch to select the
operating mode

Switch to select the
output level

At the bottom you can select between three
basic functions.
An arrow points to the selected basic
function.

At the bottom you can select between three
operating modes. The different operating
modes are controlled and monitored by a
micro controller. An arrow points to the
selected operating mode. This function is only
available with the basic functions Autonomous
and Remote.

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The connecting cable can be guided to the rear or to the bottom.
For this you can remove the two small screws, turn the cable duct
appropriately and tighten the screws. The standard cable exit is on the
rear.

6. Microphone Positioning

Each speaker should have his or her
own microphone.
The MPR 211 must not directly be
placed with its back in front of a wall.
The minimum distance to the wall
should be 15 to 20 cm. An acoustic
shadow due to obstructions, such as
books, newspapers or conference
papers, compromises performance
greatly.

When notebooks are being used, it is
also necessary to consider the micro­phones. Notebooks should always be
positioned to the side of the micro­phones. Otherwise, when opened, the
LCD screen would obstruct the sound.
This also applies to free-standing
monitors. Sufficient distance is the key
to the directional effect and good
feedback suppression. Moreover,
notebooks often have fans at the
back. The noise of the fan would then
be fully picked up by the microphone.

Two MPR 211 should not be directly
placed back to back, because the
acoustical corridor effect does not
work in this case. As shown in the
previous example the minimum
distance should be 15 to 20 cm.

For more information about application examples, please refer to the
beyerdynamic “Revoluto Design Guide”.

7. Installation

For permanent installation on a table, the MPR 211 provides screw
sockets on the left and right hand side at the bottom of the housing.

Warning:

We recommend that the threaded sleeve is screwed into the micro­phone approx. 1/5" (5 mm). Refer also to the drilling template.

8. Maintenance

Use a soft, damp cloth for cleaning the MPR 211 microphone. If
necessary, you can use a gentle cleansing agent (such as washing-up
liquid). Make sure not to allow any water to enter the transducer
element and never use any solvent cleansers.

9. Service

Servicing must be carried out by qualified service personnel only.
Dismantling the microphone yourself will invalidate the guarantee.

10. Version

MPR 211 Microphone with

Revoluto technology,

corridor polar pattern . . . . . . . . . . . . Order # 488.429

15 - 20 cm

15 cm

15 - 20 cm

Cable guided to the rear.

Cable guided to the bottom.

cable duct

cable duct

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11. Technical Specifications

Transducer . . . . . . . . . . . . . . . . . . . . . . . . . Condenser (back electret)

Frequency response. . . . . . . . . . . . . . . . . . . 130 - 17,000 Hz

Microphone . . . . . . . . . . . . . . . . . . . . . . . . Microphone Array,

patented

Polar pattern. . . . . . . . . . . . . . . . . . . . . . . . Corridor

Optimal distance of the speaker . . . . . . . . . 60 - 80 cm

Open circuit voltage at 1 kHz . . . . . . . . . . . approx. 200 mV/Pa

Output level depending on the
selected position

Hi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/Pa

Mid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 mV/Pa (-10 dB)

Lo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mV/Pa (-20 dB)

Nominal impedance . . . . . . . . . . . . . . . . . . 200 Ω

Load impedance . . . . . . . . . . . . . . . . . . . . . > 1 kΩ

Max. SPL at f = 1 kHz, k < 1% . . . . . . . . . . 112 dB

Signal-to-noise ratio rel. to 1 Pa . . . . . . . . . 60 dB

Voltage supply . . . . . . . . . . . . . . . . . . . . . . Phantom powering

48 V ±4 V to 6.8 kΩ

supply impedance

24 V ±4 V to 1.2 kΩ

supply impedance

Control logic. . . . . . . . . . . . . . . . . . . . . . . . 12 V - 24 V DC

Power consumption . . . . . . . . . . . . . . . . . . 3 mA*

T.H.D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.1%

Connection. . . . . . . . . . . . . . . . . . . . . . . . . bare-ended 6-core cable,

3 m long (refer to wiring

diagram on page 26)

Temperature range . . . . . . . . . . . . . . . . . . . -10 °C to +40 °C

Dimensions (L x H x D) . . . . . . . . . . . . . . . . 300 x 40 x 45.5 mm

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 g

*incl. LED in the microphone button

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Anschlussdiagramm / Wiring Diagram /
Diagramme de câblage

Die Funktionen „External Logic Mode“ und „Remote Mode“ benötigen
Phantomspeisung.
The functionality in “External Logic Mode” or “Remote Mode” requires
phantom powering.

DEF1/PI MPR 211 (07.09)/611.441/Hoh. • Änderungen und Irrtümer vorbehalten • Subject to change without notice • Sous réserve de modifications • Printed in Germany

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 224
[e-mail] | www.beyerdynamic.de

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