Beyerdynamic MCW-D 2071 Features And Specifications

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

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E2 / MCW-D 2071 (02.10)

MCW-D 2071

Wireless, digital Delegate Microphone Unit

Order # 472.751

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F

EATURES

• Direct Sequence Spread Spectrum (DSSS) provides
high immunity from interference and unauthorised listening

• Wireless transmission with integrated transmitting/receiving
antenna in the 2.4 GHz frequency band which is approved
world-wide

• Maximum of 8 receiving channels

• Digitally encoded audio signals prevent unauthorised listening

• Integrated loudspeaker with voice equalisation

• Multilingual LC-Display 2 lines, 16 characters, with automatic
switch-off of the illumination

• 3 multi-function buttons and LC-Display for votings, channel
selection in interpreting applications, headphone volume or
battery status

• Gooseneck microphone provides excellent audio quality

• Red illuminated ring around the gooseneck to indicate the
ready-to-talk status of the microphone

• Microphone button to switch the microphone on / off or to
register it in the system

• Dual colour LED for microphone ON
(red: communication is established;
green: microphone is switched on and ready for talking)

• Multi-function-connection for DC-operation or battery
charging

• Gold-plated charging contacts

• Power on LED

• Mini stereo jack (3.5 mm) as headphone output or as
documentation output for the connection of recorders,
dictating machines etc.

• Connection for 3/8" stand adapter (as an option)

• Modern fully metal housing with charcoal-grey, non-glare and
scratch-resistant Nextel

®

finish

• The following parameters can be programmed:
loudspeaker level,
recording/headphone level,
loudspeaker attenuation when microphone is switched on,
auto-off settings, RF transmitter power, RF input sensitivity,
low battery indication, voice-controlled switching on, hold time

• Auto-Off function when nobody speaks into the microphone

• Microphone unit can be programmed by using the appropriate
configuration software with the control unit

• APO function for Automatic Power OFF when the control unit
is in the stand-by mode or switched off

• Maximum charging time of 2 hours when the rechargeable
battery (NiMH) is completely empty

• Operating time 8 - 9 hours depending on the relation between
Speaking and Listening

Battery > 60 min
next

illu. 1 illu. 2 illu. 3

D

ESCRIPTION

The MCW-D 2071 delegate microphone unit is equipped with a
microphone button in the housing with which the participant can
switch his microphone on and off. With the Automatic Channel
Allocation function the transmitting channels of the microphone
units are allocated automatically. When the microphone button is
pressed in the manual operating mode the request-to-talk is
received by the control unit (a possible external dual colour LED will
illuminate red). Then the control unit checks which of the available
receiving channels (as standard 4, extended version up to 7) is free.
Then the control unit informs the microphone unit which channel
it should use for transmitting. When the channel of the micro­phone unit is set and checked by the control unit, the microphone
is switched on (dual colour LED changes from red to green). The
ready-to-talk status of the microphone is also indicated by the red
ring around the gooseneck microphone. In the Request-to-Talk­mode of the discussion system the request-to-talk is received, but
the microphone is not switched on. The red LED indicates that the
request-to-talk has been received. The microphone is switched on
by the chairman, the operator at the PC by using the “MCW-D
Controller” software or a media control system. When the micro­phone button is pressed once again, the delegate clears his/her
request-to-talk.

The integrated loudspeaker reproduces the audio signal of the
whole conference system. Depending on the audio signal routing
in the control unit the loudspeaker can reproduce other audio
signals such as a wireless microphone in the auditorium.

In the first line the LC-Display indicates the menu and the second
line indicates the description of the appropriate button functions of
the individual menus. With the middle button you can change
from one menu to the next. The left and right button are for
adjustments within the individual menus. If one of the buttons is
pressed the display will be illuminated. This illumination is switched
off automatically after 10 seconds. In the menu “Channel
Selection” it is possible to choose among 8 possible transmission
channels for the headphone output (refer to illu. 1) in simultaneous
interpreting applications. A name for the channel can be entered
with the MCW-D 200 Editor software. Furthermore, the display is
for votings and to indicate text messages (paging).

Note:

The MCW-D 200 control unit has to be equipped with the
CA 2451 PCB Individual In/Out so that the control unit can receive
and transmit the appropriate foreign language channels. As a
standard the control unit is equipped with 5 transmitting/receiving
modules, i.e. for reception it is possible to use 1 data channel,
1 chairman microphone unit and up to 3 delegate microphone
units and for transmission to the microphone units all 5 transmitting
channels can be used. Only channels which had been set with the
MCW-D 200 Editor software can be received. For a detailed
description please refer to the appropriate MCW-D 200 or
MCW-D 200 Editor manual. In the menu “Headphone Volume”
the volume of the selected channel can be adjusted individually
(refer to illu. 2). The menu “Battery” indicates the remaining
operating time of the microphone unit (refer to illu. 3).

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

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E2 / MCW-D 2071 (02.10)

MCW-D 2071

2 of 7

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

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E2 / MCW-D 2071 (02.10)

MCW-D 2071

3 of 7

D

ESCRIPTION

The parameters of the microphone unit are adjusted via PC by
using the “MCW-D 200 Editor” software. The parameters can be
adjusted for each microphone unit individually or for the complete
discussion system.

It is determined which one of the 8 even or 8 odd transmitting and
receiving channels the microphone unit should use for transmitting
and receiving. If a participant forgets to switch off his/her micro­phone and if nobody speaks into the microphone, the “Auto-Off”
function switches the microphone off. The time when the “Auto­Off” function will be activated and the sensitivity can be configured.
The output level of the headphone connection can be set for
recording level for documentation or for headphone level. The
volume of the loudspeaker is adjusted and can be controlled with
a media control system or the MCW-D 2073 chairman microphone
unit. The ducking level determines the decrease of the loudspeaker
level when the microphone of the microphone unit is switched on.
The RF-transmitter power and the RF-receiving sensitivity can be
adjusted for multi-channel use, in big conference halls or for safety
reasons.

Depending on the configuration with the “MCW-D 200 Editor”
software the following operating modes are available:
Override: the first microphone is switched off, when the maximum
number of switched on microphones is exceeded.
Push-To-Talk: the microphone will be switched on as long as the
microphone button will be pressed.
Voice activation: the microphone is switched on, when someone
speaks into it.
Each microphone unit has its own address and existing systems can
be complemented at any time.

The DSSS-transmission provides high immunity against unauthorised

listening. In addition, a conference system including the appropriate
microphone units can be protected with a PIN code. A microphone
unit that does not have the correct PIN code will be identified by
the control unit and switched off immediately.

The integrated rechargeable battery allows operation of the micro­phone unit for 8 - 9 hours depending on the amount of participation
in the discussion. As soon as the remaining battery time is below a
certain threshold of 30 minutes or 1 hour, the power on LED on the
rear of the microphone unit will flash or if the system is controlled
by PC or a media control system, the low battery capacity can be
also indicated. The charging time of a completely empty battery is
around 2 hours with the processor-controlled charging electronics
inside the charging case. Depending on the use of the microphone
unit the charging time can be less.
As an option the microphone unit can be powered by a DC power
supply adapter.

The microphone unit is switched on by pressing the microphone
button once. There are various ways to switch off the microphone
unit:

1. Press the microphone button for 3 seconds.

2. Press the standby button of the MCW-D 100 control unit for

3 seconds to switch off all activated microphone units.

3. Switch off all microphone units via an RS 232 command from

the PC or media control system.

4. Switch off the control unit; after approx. 2 minutes the micro-

phone unit will be switched off.

The microphone unit can be supplied in special colours subject to
order and quantity requirements.
The weight of the all metal housing gives the microphone unit
good physical isolation against mechanical coupling.

A

RCHITECT’SSPECIFICATIONS

Wireless and digital delegate unit with one button to switch the
microphone on/off or to register the request to talk. DSSS modulation
(Direct Sequence Spread Spectrum) ensures high immunity from
interference. World-wide approval in the 2.4 GHz frequency band.
Integrated loudspeaker with voice equalisation for decentralised
sound reinforcement. LC-Display, 16 characters/2 lines, with
3 multi-function buttons for voting, channel selection in interpreting
applications, control of the headphone volume and indication
of the battery status. ACA - Automatic Channel Allocation via
integrated, digital transceiver. Dual colour LED: green indicates
switched on microphone; red indicates request-to-talk. Cardioid
condenser gooseneck microphone (back electret). Gooseneck
length: 400 mm; gooseneck diameter: 8 mm. Illuminated ring to
indicate the ready-to-talk status. Using the configuration software
with a PC it is possible to adjust and configure the RF transmitter
power and receiving sensitivity, volume and attenuation of the

integrated loudspeaker, audio level at the record output, auto-off­switching, voice activation and hold time. Integrated rechargeable
NiMH battery ensures an operating time of 8 - 9 hours. Processor­controlled charging technology for a charging time of 2 hours
without memory effect. The battery is monitored by the control unit
and an LED indicates when the capacity is too low. 2 gold-plated
charging contacts. Mini jack socket (3.5 mm) as documentation or
headphone output. Multi-function-connection for recharging the
battery via an external charger or powering the microphone unit
with an external power supply unit. Fully metal housing with
charcoal-grey Nextel

®

finish. Integrated antenna. Dimensions

(Width x Height front / Height rear x Depth) 180 x 15 / 52 x 190 mm.

Manufacturer: beyerdynamic
Type: MCW-D 2071