Beyerdynamic CLASSIS RM 31 Bedienungsanleitung
Classis RM 30
Classis RM 31
KONDENSATORMIKROFON
CONDENSER MICROPHONE
MICROPHONE À CONDENSATEUR
Produktinformation
Product Information
Informations de produit
Classis RM 30 | RM 31 – Contents 9
english
1. Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . 10
2. Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Microphone Positioning . . . . . . . . . . . . . . . . . . . . . . 11
5. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6. Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7. Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8. Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . 12
9. Technical Specifications . . . . . . . . . . . . . . . . . . . . . 12
10. Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Frequency Response Curve . . . . . . . . . . . . . . . . . . . . . . . 20
Polar Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Classis RM 30 | RM 31
10
Thank you for selecting the Classis RM 30 or RM 31 Revoluto
microphone. Please take some time to read carefully through this
information before using the product.
1. Safety Information
• Protect the microphone from moisture and sudden impacts. You
could either injure yourself or others or damage the microphone.
• Do not blow into the microphone, you could damage the
transformer. It is preferable to carry out a speech trial.
2. Applications
The Classis RM 30 | RM 31 is a modern desktop microphone
which is ideal for discussions, podiums, tele/video conferencing,
announcements and lecterns.
The Revoluto technology with integrated microphone capsules provides
a corridor characteristic which ensures a wide range of good voice
quality. Within this range up to two speakers can move freely, i.e. they
can stand up or sit down, move their head and move towards or away
from the microphone.
3. Connection
For example an XLR flange socket is installed into the tabletop and
connec
ted to the amplifier input (pin 1: ground, pin 2: NF+,
pin 3: NF-). As an alternative there are installation and shockmounted
holders available (refer to “Optional Accessories”).
The microphone is connected and ready for operation.
The Classis RM 30 and RM 31 S microphones need a phantom
supply of 8 - 52 V for operation.
Q Version
In order to avoid interference, we recommend that the audio and
the supply to the illuminated ring are individually shielded. The
Classis RM 31 Q microphone requires a voltage of 5 V for operation.
Classis RM 30 | RM 31 11
english
4. Microphone Positioning
When notebooks are being used, it is
also necessary to consider the micro-
phones. Notebooks should always be
positioned to the side of the micro-
phones. 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 picked up by the
microphone.
Two Classis RM 31 Q should not be
directly placed back to back, because
the loudspeaker of the second built-
in or desktop microphone unit will be
picked up by the microphone and
cause feedback. The minimum
distance should be 15 to 20 cm.
In order to avoid feedback, the mini-
mum distance between external loud-
speakers and the Classis RM 30 or
Classis RM 31 should be 5 m.
For more information about application examples, please refer to the
beyerdynamic “Revoluto Design Guide”.
5. Maintenance
Use a soft, damp cloth for cleaning the 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.
6. Service
Servicing must be carried out by qualified service personnel only.
Dismantling the microphone yourself will invalidate the guarantee.
15 cm
15 - 20 cm
5 m
Classis RM 30 | RM 31
12
7. Versions
Classis RM 30 3-pin male XLR connector,
filter . . . . . . . . . . . . . . . . . . Order # 729.388
Classis RM 31 S 3-pin male XLR connector,
filter, LED ring, programmable
switch . . . . . . . . . . . . . . . . . Order # 729.396
Classis RM 31 Q 5-pin male XLR connector,
LED ring . . . . . . . . . . . . . . . Order # 729.302
8. Optional Accessories
GMB 33 S Microphone base with button,
3-pin female XLR connector for
Classis RM 30
and RM 31 S only . . . . . . . . Order # 725.242
GMS 32 Shock-mounted holder for
table installations, for Classis RM 30
and RM 31 S, 3-pin female
XLR connector, black . . . . . . Order # 729.582
GMS 52 Shock-mounted holder for
table installations, for
Classis RM 31 Q, 5-pin female
XLR connector, black . . . . . . Order # 725.757
ZSH 20 Shock-mounted holder for
table installations, black. . . . Order # 454.559
9. Technical Specifications
Microphone . . . . . . . . . . . . . Revoluto microphone array, patented
Transducer type . . . . . . . . . Electret condenser
Operating principle . . . . . . . Pressure gradient
Polar pattern . . . . . . . . . . . . Corridor
Horizontal . . . . . . . . . . . . Cardioid
Vertical . . . . . . . . . . . . . . . Lobe
Optimal distance to
the speaker . . . . . . . . . . . . . 40 - 80 cm [15.75" - 31.5"]
Frequency response
Classis RM 31 Q . . . . . . . . 110 - 20,000 Hz
Classis RM 30 . . . . . . . . . . 90 - 20.000 Hz
Sensitivity . . . . . . . . . . . . . . 28.7 mV/Pa = -30.9 dBV ±2 dB
Nominal impedance
Classis RM 31 Q . . . . . . . . < 20 Ω
Classis RM 30 . . . . . . . . . . < 200 Ω
Load impedance
Classis RM 31 Q . . . . . . . . ≥ 100 Ω
Classis RM 30 . . . . . . . . . . ≥ 1 kΩ
Signal-to-noise ratio /noise voltage
Classis RM 31 Q . . . . . . . . 68 dB [A] / 11.5 μV [A]
Classis RM 30 . . . . . . . . . . 67.2 dB [A] / 12.5 μV [A]
Max. SPL . . . . . . . . . . . . . . 107 dB [SPL @ 1% THD]
Equivalent SPL . . . . . . . . . . 26.8 dB [A]
Connector
Classis RM 31 Q . . . . . . . . unbalanced, 5-pin XLR male
Classis RM 30 . . . . . . . . . . unbalanced, 3-pin XLR male
Supply voltage / supply current
Classis RM 31 Q . . . . . . . . 5 V / 8.5 mA (with LED)
Classis RM 30. . . . . . . . . . . Phantom power
P48 (+48 VDC, 6.8 kΩ, < 4.5 mA)
P24 (+24 VDC, 1.2 kΩ, < 4.5 mA)
P12 (+12 VDC, 680 Ω, < 4.5 mA)
Temperature range . . . . . . . . -10 °C bis +40 °C [14 °F to 104 °F]
Dimensions: . . . . . . . . . . . . RM 30 RM 31 Q
Length (in mm) . . . . . . . . 261 219
[in inch]. . . . . . . . 10.28" 8.62"
Capsule ø (in mm) . . . . . . . . 25 25
[in inch]. . . . . . . . 0.98" 0.98"
Weight (in g) . . . . . . . . . . 153 107
[in pounds]. . . . . . 0.235 0.377
10. Disposal
This symbol on the product, in the instructions or on the
packaging means that your electrical and electronic equip-
ment should be disposed at the end of its life separately
from your household waste. There are separate collection
systems for recycling in the EU. For more information,
please contact the local authority or your retailer where
you purchased the product.
Classis RM 30 | RM 31 13
english
RM 30 | RM 31 – Revoluto Mikrofon
20
Frequenzkurve / Frequency Response Curve /
Courbe de fréquence
± 2 dB (1 m) Classis RM 30 0 dB = 28.7 mV/Pa0 dB = 11 mV/Pa
RM 30 | RM 31 – Revoluto Mikrofon 21
± 2 dB (1 m) Classis RM 31 Q 0 dB = 28.7 mV/Pa0 dB = 11 mV/Pa
Classis RM 30 | RM 31
22
Richtdiagramme / Polar Patterns /
Diagrammes de directivité
horizontal
vertical
Classis RM 30 | RM 31 23
Anschlussdiagramme / Wiring Diagrams /
Diagrammes de câblage
Classis RM 31 Q
Classis RM 30 | RM 31 S
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3
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