Beyerdynamic Quinta MU 21, Quinta MU 31, Quinta MU 22 User Manual

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 204
[e-mail] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E1 / Quinta MU 22 (07.12)

Quinta MU 22

Digital Wireless Double Delegate Microphone Unit

Order # 723.940

FEATURES

• Direct Sequence Spread Spectrum (DSSS) provides high immunity
from interference and unauthorised listening, even when using
other radio systems

• Wireless transmission with integrated True Diversity
antenna technology for transmitting and receiving

• Three selectable frequency bands : 2.4 / 5.2 / 5.8 GHz

• Automatic or manual silent change to an interference-free
freqquency response acc. to EN 3000328 ETSI

• Automatic recognition of interferences in all frequency ranges

• Processor-controlled and automatic audio channel allocation of
the microphone units

• Digital 128-bit encryption and additional 24-bit PIN code against
unauthorised listening

• Removable gooseneck microphone with Scudio

®

technology in

different lengths, 5-pin XLR connector with hidden lock

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

• Soft touch silicone buttons with backlit illumination in 3 colours

• Operating panel with braille made of stainless steel

• Two microphone buttons for two participants to switch the
microphone on / off

• Voice-controlled activation of the microphone possible

• High-quality plastic housing with a non-glare matt black coating
of Alexit soft-touch paint

• Integrated loudspeaker with voice equalisation

• Decreased loudspeaker volume when microphone is switched on

• Adjustable mini stereo jack output (3.5 mm) as documentation or
headphones

• Parameters can be programmed via the control unit and
the appropriate configuration software

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

• Power on LED

• Charging status of the battery can be monitored and transmitted
to the control unit

• Operating control LED indicates the status when the minimum
capacity is too low

• Charging contacts for charging the integrated
rechargeable batteries in the charging unit

• Reliable processor-controlled charging electronics avoids
memory effect and ensures immediate use of the microphone
units

• LED ring of the gooseneck microphone indicates the charging
status and the power on LED on the rear indicates the use of an
external power adapter

• Maximum charging time of 2.5 hours when the battery (NiMH)
is completely empty

• DC connection for battery recharging or powering via external
power adapter

• Minimum operating time 20 hours

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Supplied without gooseneck microphone

Quinta MU 22

DESCRIPTION

The Quinta MU 22 delegate microphone unit is equipped with two
microphone buttons in the housing so that two participants can
share one microphone unit. The operating software can differentiate
who is to speak.
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 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.
The ready-to-talk status of the microphone is also indicated by the
red LED ring around the gooseneck microphone. In the Request­to-Talk-mode 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 operator at the PC by using the
“Quinta Conference” software or a media control system. When
the microphone button is pressed once again, the delegate clears
his/her request-to-talk.

Depending on the configuration with the “Quinta Conference”
software the following operating modes are available:
Override: the first microphone is switched off, when the maximum
number of switched on microphones is exceeded.
Voice activation: the microphone is switched on, when someone
speaks into it.
Push-To-Talk: the microphone button is held down, while the
participant is speaking.

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.

The parameters of the microphone unit are adjusted via PC by using
the “Quinta Conference” software. The parameters are adjusted
for all microphone units.

A headphone (e.g. DT 1) can be connected to the documentation
output. The volume of the loudspeaker is adjusted and can be
controlled with the Quinta CU control unit or a media control system.
The ducking level determines the attenuation of the loudspeaker
level when the microphone of the microphone unit is switched on.
Each microphone unit has its own address. An existing system can
be complemented at any time.

The DSSS transmission offers high immunity against unauthorised
listening with a 128-bit encryption. In addition to this, the conference
system including the appropriate microphone units can be protected
with PIN code (24-bit). 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 a minimum operation
of the microphone unit of 20 hours depending on the participation
in the discussion. As soon as the remaining battery time is below a
certain threshold of 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 2.5 hours with the integrated processor-controlled charging
electronics. Depending on the use of the microphone unit the
charging time can be less.
As an option the microphone unit can be powered and charged by
a DC power supply adapter.

The microphone unit is switched on by briefly 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 50 control unit for

3 seconds to switch off all activated microphone units.

3. Switch off all microphone units via an RS 232 or TCP/IP

command from the PC or media control system.

4. Switch off the control unit; after approx. 3 minutes the micro-

phone unit will be switched off.

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 204
[e-mail] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E1 / Quinta MU 22 (07.12)

2 of 7

OPTIONAL ACCESSORIES

GM 313 Q Condenser (electret) gooseneck

microphone cardioid, matt black,

300 mm long. . . . . . . . . . . . . . . . . Order # 724.203

GM 314 Q same as above, but 400 mm long . . Order # 724.211
GM 315 Q same as above, but 500 mm long . . Order # 724.238
GM 316 Q same as above, but 600 mm long . . Order # 724.351

CC2 Modular charging and transport case

for 10 Quinta microphone units. . . Order # 723.967

CC2/600 Charging and transport case for 10

Quinta microphone units with
GM 316 Q gooseneck microphone . Order # 724.572

CD 2 Modular charging and transport unit

for 10 Quinta microphone units
with GM 313, 314 or 315

gooseneck microphone . . . . . . . . . Order # 723.975

TECHNICAL SPECIFICATIONS

General

Frequency range. . . . . . . . . . . . . . . . 2400 – 2483.5 MHz

5150 – 5250 MHz
5725 – 5875 MHz

Modulation . . . . . . . . . . . . . . . . . . . Direct Sequence Spread

Spectrum DSSS (2.4 GHz;

5.8 GHz); Orthogonal
Frequency Division
Multiplexing OFDM
(5.2 GHz)
digital signal processing acc.
to own standard

Max. number of audio streams. . . . . 4 useable channels per

system

Signal-to-noise ratio . . . . . . . . . . . . . 80 dB typ., (unweighted

signal-to-noise ratio)
Range between microphone units

and control unit . . . . . . . . . . . . . . . . > 100 m [109.36 yds]

Power supply . . . . . . . . . . . . . . . . . . 100 – 240 V AC 50/60 Hz

Approval . . . . . . . . . . . . . . . . . . . . . world-wide

AVB

Transmission and reception

of audio data . . . . . . . . . . . . . . . . . . acc. to IEC 61883-6

Format of the audio data . . . . . . . . . AM824

Stream ID Quinta CU . . . . . . . . . . . . Bit 63 – 16 / MAC address

Bit 15 – 0 / X

Quinta MU Microphone Units

Transmitter power . . . . . . . . . . . . . . max. 20 dBm per channel

and region (average, duty

cycle ≤ 30%)*

Battery voltage . . . . . . . . . . . . . . . . . 8 NiMH cells, 2080 mAh

External DC operation . . . . . . . . . . . 15 V DC (±0.5 V),

residual hum < 20 mV,

950 mA

Charging time

with charger. . . . . . . . . . . . . . . . . . . max. 2.5 hours when the

battery is completely empty

with mains charger adapter . . . . . . . max. 2.5 hours when the

battery is completely empty

Loudspeaker. . . . . . . . . . . . . . . . . . . Wide-band, integrated

loudspeaker
Volume decrease when

Mic On (“Ducking”) . . . . . . . . . . . . . 15 dB fixed setting

Headphone output. . . . . . . . . . . . . . Jack socket (3.5 mm, stereo)

Min. impedance . . . . . . . . . . . . . . . . 16 Ω

Power supply . . . . . . . . . . . . . . . . . . 9.6 V with integrated NiMH

battery (8 cells)
Operating time depending
on the type of

the microphone unit. . . . . . . . . . . . . approx. 20 hours in

discussion mode,

operating time also depends

on the volume
Temperature range

(at < 90% humidity). . . . . . . . . . . . . +10° – +40°C

[+50 °F – +104 °F]
Storage temperature

(at < 90% humidity). . . . . . . . . . . . . -20° – +55°C

[-4 °F – +131 °F]
Dimensions (without microphone)

Length . . . . . . . . . . . . . . . . . . . . . . . 173 mm [6.8"]

Width. . . . . . . . . . . . . . . . . . . . . . . . 157 mm [6.18"]

Height . . . . . . . . . . . . . . . . . . . . . . . 51 mm [2.01"]

Weight. . . . . . . . . . . . . . . . . . . . . . . 1.7 kg [3.74 lbs]

*The transmitter power can differ from this value due to specific
regulations in various countries.

Quinta MU 22

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 204
[e-mail] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E1 / Quinta MU 22 (07.12)

3 of 7

ARCHITECT’S SPECIFICATIONS

The digital wireless microphone unit shall be available as delegate
version without microphone for two participants. The microphone
unit shall provide two buttons for each delegate for turning on/off
and entering a request to speak. The microphone unit shall provide
a 5-pin XLR connector with hidden locking for a gooseneck micro­phone in different lengths. The DSSS modulation shall ensure high
immunity from interference in the frequency range of 2.4 / 5.2 and

5.8 GHz. The true diversity antenna technology shall ensure highest
transmission reliability. The digital 128-bit encryption shall include an
additional 24-bit PIN code. There shall be an automatic recognition
of interferences in all frequency ranges. The silent change to an
interference-free frequency range shall be automatic or manual
according the EN 300328 ETSI. The audio channel allocation of the
microphone units shall be processor-controlled and automatic. The
high-quality plastic housing shall feature a mat black coating with
Alexit soft-touch paint. The integrated wideband loudspeaker shall
be used for decentral sound reinforcement. The integrated limiter
shall be used against overdrive. The silicone button shall be backlit

in 3 colours and provided with Braille. The integrated rechargeable
NiMH battery shall provide an operating time of max. 30 hours. The
processor-controlled, intelligent charging technology shall provide a
Quick-Charge function without memory effect and charge the
battery within a maximum of 2.5 hours depending on the charging
state. The charging status of the battery shall be monitored and
transmitted to the control unit. The operating control LED shall
indicate the status when the minimum capacity is too low. The
microphone unit shall be provided with two nickel-plated charging
contacts. The headphone output shall be a mini jack (3.5 mm)
socket with adjustable control. The DC connection shall be used
for battery recharging or powering via external power adapter. The
dimensions (WxHxD) shall be 157x51x173mm [6.18"x2.01"x6.8"].
The weight shall be 1.7 kg [3.74 lbs].

Manufacturer: beyerdynamic
Type: Quinta MU 22