Classis RM 30 | RM 31
Classis RM 30 | RM 31
Revoluto Microphone
Classis RM 30
FEATURES
•
•
•
•
•
Revoluto technology with vertical microphone array
Corridor characteristic
High gain before feedback
Modern metal housing
Three versions:
Classis RM 30 with 3-pin male XLR connector and filter
Classis RM 31 S with 3-pin male XLR connector, filter,
LED ring, programmable switch (not yet available)
Classis RM 31 Q with 5-pin male XLR connector, LED ring
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 32 W same as above, but white . . . . . . . . Order # 729.760
GMS 52
Shock-mounted holder for table
installations, for Classis RM 31 Q,
5-pin female XLR connector,
black. . . . . . . . . . . . . . . . . . . . . . . . Order # 729.434
GMS 52 W same as above, but white . . . . . . . . Order # 729.779
ZSH 20
Shock-mounted holder for
installations. . . . . . . . . . . . . . . . . . . Order # 454.559
Classis RM 31 Q with
Orbis MU 21 delegate
microphone unit
Classis RM 31 Q
APPLICATIONS
The Classis RM 30 or Classis RM 31 is a new desktop microphone
for round table discussions, podiums, tele/video conferencing,
announcements and lecterns.
The Revoluto technology with five integrated microphone capsules
provides a so-called 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.
The microphone is available in three versions: the Classis RM 30
and Classis RM 31 S can be installed into tabletops when using the
shock-mounted holders for installations. The Classis RM 31 Q is
used with the Quinta and Orbis microphone units.
The LED ring of the Classis RM 31 S and Classis RM 31 Q illuminates
red to indicate the ready-to-speak status of the microphone.
VERSIONS
Classis RM 30
3-pin male XLR connector,
filter, black . . . . . . . . . . . . . . Order # 729.388
Classis RM 30 W same as above, but white . . . Order # 729.701
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
1 of 4
beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
info@beyerdynamic.de | www.beyerdynamic.com
For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3/Classis RM 30|RM 31 (01.16)
Classis RM 30 | RM 31
TECHNICAL SPECIFICATIONS
ARCHITECT’S & ENGINEER’S SPECIFICATIONS
Microphone. . . . . . . . . . . . . Revoluto microphone array, patented
Transducer type . . . . . . . . . Electret condenser
Operating principle . . . . . . . Pressure gradient
Polar pattern . . . . . . . . . . . . Corridor
Horizontal . . . . . . . . . . . Cardioid
Vertical . . . . . . . . . . . . . . Lobar
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 = -30.9dBV ±2dB
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 . . . . . . . unbal., 5-pin XLR male
Classis RM 30 . . . . . . . . . unbal., 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]
RM 31 S
Dimensions:. . . . . . . . . . . . . RM 30
RM 31 Q
Length
(mm). . . . . . . . . . 261
219
(inch) . . . . . . . . . [10.28"]
[8.62"]
Capsule ø (mm). . . . . . . . . . 25
25
(inch) . . . . . . . . . [0.98"]
[0.98"]
Weight
(g). . . . . . . . . . . . 153
107
(pounds) . . . . . . . [0.235]
[0.377]
The microphone array microphone with a corridor characteristic
shall be used as a high-quality conference, paging and PA microphone. The microphone shall be connected to the Quinta or Orbis
microphone unit. The LED ring integrated in the microphone shall
indicate the ready-to-speak status. The vertical lobar and a
horizontal cardioid microphone characteristic shall provide a
maximum freedom of movement without acoustic losses of the
recording quality. The filter in the microphone grille shall eliminate
wind and pop noise. The RFI shield technology shall eliminate
interferences of other wireless communication devices. The electret
condenser microphone shall provide an unobtrusive and modern
full metal housing for discreet positioning. The housing shall be
coated with a non-glare mat black textile and paint. The gooseneck
diameter shall be 25 mm [0.98"]. The total length shall be 230 mm
[9.05"] when connected to the microphone unit (measured from
the table’s edge). It shall be suitable for discussions, podiums, tele
and video conferences, announcements and lecterns. The frequency
response shall be 110 - 20,000 Hz. The open circuit voltage shall be
28.7 mV/Pa. The nominal impedance shall be <20 ohms. The
microphone shall be provided with a 5-pin male XLR connector. The
net weight shall be 0.107 kg [0.235 lbs].
Manufacturer: beyerdynamic
Type:
Classis RM 31 Q
The microphone array microphone with a corridor characteristic
shall be used as a high-quality conference, paging and PA microphone. The vertical lobar and a horizontal cardioid microphone
characteristic shall provide a maximum freedom of movement
without acoustic losses of the recording quality. The filter in the
microphone grille shall eliminate wind and pop noise. The RFI shield
technology shall eliminate interferences of other wireless communication devices. The electret condenser microphone shall provide an
unobtrusive and modern full metal housing for discreet positioning.
The housing shall be coated with a non-glare mat black textile and
paint. The gooseneck diameter shall be 25 mm [0.98"]. The total
length shall be 261 mm [10.28"]. The phantom power shall be
between 8 and 52 V (P12, P24, P48). A pre-amplifier shall be
integrated in the base and provided with a balanced signal output.
It shall be suitable for discussions, podiums, tele and video
conferences, announcements and lecterns. The frequency response
shall be 90 - 20,000 Hz. The open circuit voltage shall be 28.7 mV/Pa.
The nominal impedance shall be 200 ohms. The microphone shall
be provided with a 3-pin male XLR connector. The net weight shall
be 0.153 kg [0.337 lbs].
Manufacturer: beyerdynamic
Type:
Classis RM 30
2 of 4
beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
info@beyerdynamic.de | www.beyerdynamic.com
For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3/Classis RM 30|RM 31 (01.16)
Classis RM 30 | RM 31
FREQUENCY RESPONSE & POLAR PATTERN
This polar pattern and frequency response curve (measuring tolerance ± 2 dB) correspond to a typical production sample for this microphone.
Frequency response ± 2 dB (at 1 m)
Classis RM 30
0 dB = 28.7 mV/Pa0 dB = 11 mV/Pa
Frequency response ± 2 dB (at 1 m)
Classis RM 31 Q
0 dB = 28.7 mV/Pa0 dB = 11 mV/Pa
horizontal
vertical
3 of 4
beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
info@beyerdynamic.de | www.beyerdynamic.com
For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3/Classis RM 30|RM 31 (01.16)
Classis RM 30 | RM 31
WIRING DIAGRAMS
Classis RM 30 | RM 31 S
Classis RM 31 Q
DIMENSIONS
112,26 [4.42"]
201 [7.91"]
RM 31 Q
260,1 [10.24"]
219,1 [8.63"]
LED-Ring
60°
RM 31 Q
lateral view
24,1 [0.95"]
front view
RM 30
24,56 [0,97"]
front view
All dimensions in mm [inch]
4 of 4
beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
info@beyerdynamic.de | www.beyerdynamic.com
For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3/Classis RM 30|RM 31 (01.16)
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