MICROTECH GEFELL

microphones & acoustic systems - founded 1928 by Georg Neumann

M 930
M 940
M 950
STUDIO CONDENSER
MICROPHONES
Polar pattern:
Cardioid, super-cardioid,
wide-cardioid

 Extreme dynamic range

 Noise floor 7 dB-A
 Universal applications
 New large diaphragm capsule
 Advanced circuit design
 Transformerless output
 Internal elastic suspension
 Compact design
 M 930 M 940 M 950

Studio condenser microphones M 930, M 940, M 950 4

Delivery 6
Accessories, optional 7
Technical specification 8
Frequency responses 8-9
XY- and ORTF Stereo recordings 10
Surround arrangement INA 5 - indoor 12
Surround arrangement INA 5-R - outdoor 14

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3
 M 930 M 940 M 950
STUDIO CONDENSER MICROPHONES
High output level and exceptionally low noise

M 930 with cardioid directional pattern

M 940 with super-cardioid directional pattern
M 950 with wide-cardioid directional pattern

The M 930, M 940, M 950 studio condenser rear (cardioid) or sides (super-cardioid) of the
microphones combine modern large diaphragm microphone.
capsule technology with the latest in semicon- The electronic impedance converter uses a
ductor circuit topology. They are specifically newly perfected circuit topology. This design
designed to meet the needs of professional reduces the noise floor to an extremely low
and semi-professional users who demand the level while also raising the maximum output
highest performance. capability. As a result, these microphones
The microphones are ideally suited for uni- have a clean, distortion free sound over an
versal miking applications in broadcast and extremely wide dynamic range. RFI suscepti-
sound studios. They are also attractive for bility is very low.
project studios. Applications include vo- The microphone capsule and electronics are
calists, announcers, dialog pickup and as elastically suspended inside the compact
spot microphones for recording guitars, metal housing. This reduces the sensitivity to me-
keyboard, percussion, wind and string instru- chanical impact and structure born noise. The
ments. microphone stand holder MH 93.1 can be ex-
The pick-up pattern is perpendicular to changed for an elastic suspension EA 93 or
the direction of the microphone axis (side EH 93 P to further attenuate noise in extreme
addressed). The model number and pick-up situations.
pattern symbol mark the front of the micro- The M 930, M 940, M 950 connect to the micro-
phone. phone cable with a standard 3-pin XLR plug.
The condenser capsules exhibits a smooth Powering must be provided by an external
frequency response with a slight presence 48 V phantom supply according to IEC 61938.
boost in the 7 to 11 kHz range. The polar res-
ponse exhibits an exceptionally high degree The microphones are finished in either a satin
of rejection for sounds impinging from the nickel or dark bronze color.

4
M 930 with EH 93 P and P 110.20 satin nickel M 930 with EA 93 and A 93 satin nickel

M 930 with EH 93 P and P 110.20 dark bronze

5
 M 930 M 940 M 950
DELIVERY

Microphone M 930 with the microphone holder MH 93.1 in a wooden case

l x d x h 180 x 106 x 78 mm

satin nickel Order-No. 211150

dark bronze Order-No. 211151

Microphone M 940 with the microphone holder MH 93.1 in a wooden case

l x d x h 180 x 106 x 78 mm

satin nickel Order-No. 211156

dark bronze Order-No. 211157

Microphone M 950 with the microphone holder MH 93.1 in a wooden case

l x d x h 180 x 106 x 78 mm

satin nickel Order-No. 211191

dark bronze Order-No. 211192

Microphone M 930 with elastic suspension EA 93

satin nickel Order-No. 2111129

dark bronze Order-No. 2111130

Microphone M 930 with elastic suspension EH 93 P and Popscreen P 110.20

satin nickel Order-No. 2111159

dark bronze Order-No. 2111160

Ordering example:
M 930 with MH 93.1, satin nickel M 930 with MH 93.1, dark bronze

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ACCESSORIES optional

Windscreen, anthracite W 76 Order-No. 202407

Popscreen, black P 110.20 Order-No. 600085
Microphone holder, satin nickel MH 93.1 Order-No. 202304
Microphone holder, dark bronze MH 93.1 Order-No. 202303
Elastic suspension, satin nickel EH 93 P Order-No. 202357
Elastic suspension, dark bronze EH 93 P Order-No. 202358
Elastic suspension incl. A93, satin nickel EA 93 Order-No. 212311
Elastic suspension incl. A93, dark bronze EA 93 Order-No. 212312
Adaptor, satin nickel A 93 Order-No. 202354
Adaptor, dark bronze A 93 Order-No. 202355
Connection cable C 70 Order-No. 202212

W 76 P 110.20

EH 93 P satin nickel EH 93 P dark bronze MH 93.1 satin nickel MH 93.1 dark bronze

EA 93 satin nickel EA 93 dark bronze A 93 satin nickel A 93 dark bronze

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 M 930 M 940 M 950
Certificate
TECHNICAL SPECIFICATIONS
M 930 M 940 M 950
Polar pattern Cardioid Super-cardioid Wide-cardioid
Acoustic operating principle Pressure gradient transducer
Frequency range 40 ... 20.000 Hz
Sensitivity at 1 kHz 21 mV/Pa 23 mV/Pa 20 mV/Pa
Output impedance 100 Ω 100 Ω 100 Ω
Noise level CCIR 468-4 13 dB 12 dB 13 dB
DIN EN 60268-4 7 dB-A 6 dB-A 7 dB-A
Signal-to-noise ratio CCIR-weighted 81 dB 82 dB 81 dB
(re 1 Pa at 1 kHz) A-weighted 87 dB 88 dB 87 dB
Max. SPL for K < 0,5 % 142 dB 141 dB 142 dB
Max. output level RL= 1 kΩ 17 dBu 17 dBu 17 dBu
RL= 10 kΩ 18 dBu 18 dBu 18 dBu
Dynamic range of electronics 135 dB 135 dB 135 dB
Current consumption (P 48, IEC 61938) 3,6 mA 3,6 mA 3,6 mA
Output connector 3-pin XLR connector, goldplated contacts
Weight without MH 93.1 210 g
Dimensions (L x Ø) 118 mm x 45 mm
Finish satin nickel, dark bronze

FREQUENCY RESPONSES M 930

Frequency responses M 930

M 930
Polar patterns M 930

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 FREQUENCY RESPONSES M 940

Frequency responses M 940

M 940
Polar patterns M 940

FREQUENCY RESPONSES M 950

Frequency responses M 950

M 950
Polar patterns M 950

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 Stereo Recording
XY- AND ORTF-STEREO RECORDINGS
M 930 with cardioid directional pattern
M 940 with super-cardioid directional pattern
M 950 with wide-cardioid directional pattern

The exceptionally low self noise floor of phones, developed by the French broad-
these microphones, 6 respectively 7 db-A, the casting, can be easy handled as a variable
extremely high output level and the very low solution. The M 930, M 940 or M 950 are
RFI susceptibility emphasize their practical mounted on the TD 93 tandem in a distance
value for stereo recordings. of 170 mm and an angle of 110° - adju-
The attractive shape of the currently smallest, sted to ORTF -. Distance and angle can be
extremely compact large diaphragm micro- adjusted according to the demand. Trans-
phones makes possible stereo recordings in mission time and intensity differences of the
XY-technology, picture 1 or ORTF-arrange- signals are used for ORTF-stereo recordings.
ment, picture 2.
The XY-technology is the most widely used Together with the specifically microphone hol-
intensity stereophony. That can be favourably ders, SH 93 stereo holder and TD 93 tandem,
realised by a coincident arrangement of two a equivalent to a stereo microphone can be
mono microphones with considerable direc- offered.
tional pattern. Both microphones are adjusted The M 930, M 940 or M 950 are delivered as
against each other in an angle of 45°-180° matched pairs for that applications.
according to the recording situation.
Finish: satin nickel, dark bronze.
Also, the ORTF-arrangement of the micro-

picture 1: XY-arrangement picture 2: ORTF-arrangement

90°
110°

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XY-arrangement with SH 93 ORTF-arrangement with TD 93

DELIVERY
Matched pair of condenser mics for XY-stereo recording with microphone holder MH 93.1
and Stereo holder SH 93 in wooden case l x d x h 334 x 148 x 76 mm

M 930-Stereo satin nickel Order-No. 211161

dark bronze Order-No. 211162
M 940-Stereo satin nickel Order-No. 211163
dark bronze Order-No. 211164
M 950-Stereo satin nickel Order-No. 211193
dark bronze Order-No. 211194

Matched pair of condenser mics for ORTF-stereo recording with microphone holder MH 93.1
and Double mount TD 93 in wooden case l x d x h 334 x 148 x 76 mm

M 930-Stereo satin nickel Order-No. 211165

dark bronze Order-No. 211166
M 940-Stereo satin nickel Order-No. 211167
dark bronze Order-No. 211168
M 950-Stereo satin nickel Order-No. 211195
dark bronze Order-No. 211196

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 Surround Arrangement - indoor
SURROUND-ARRANGEMENT INA 5
with elastic suspension

The INA 5 configuration - Ideale Nieren An- microphones can be moved along the spokes.
ordnung / ideal cardioid arrangement - is Other microphone types can also be used, e.g.
an extension of the stereo INA 3 layout for the M 960 diffuse field microphone. Thanks to
surround recording. INA 3 and INA 5 are the modular construction of the bracket, other
fully compatible with the 3/2 stereo format as recording configurations are also possible
specified in ITU 775. on request, e.g. OCT- System, IRT-Surround,
This microphone bracket is especially well Decca Tree.
suited for use with our large diaphragm cardi- The three front microphones can be placed up
oid microphone M 930, M 940, M 950 with the to 17,5 cm away from the centre at an angle of
matching MH 93 microphone holder, or EH 93 90°. The right and left surround microphones
elastic suspension. can be placed up to 59,5 cm from the centre
When the guard rings are unscrewed, the at an angle of 60°.

90°

60°

90°

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Surround arrangement INA 5, suspended, TÜV-certificated

adjusting adjusting
rope rope

suspension-,
safety rope

acc. BGV C1 SR INA 5

DELIVERY
Surround arrangement INA 5 black matt
with Elastic suspension for Ø 21 mm, Velcro-band, 3 pcs,
Ball headed hex screwdriver 3 mm, in suitcase

optionally equipped with

5 pcs M 930 dark bronze Order-No. 211188

5 pcs M 940 dark bronze Order-No. 211197
5 pcs M 950 dark bronze Order-No. 211198

for suspended version:

Microphone suspension MA 5 TÜV-certificated, acc. BGV C1 Order-No. 212318
5 pcs Circlip SR INA 5
suspension-, safety- and adjusting rope, project specific on request

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 Surround Arrangement - outdoor
SURROUND-ARRANGEMENT INA 5-R
with elastic suspension

Surround arrangement INA 5-R, suspended, TÜV-certificated

adjusting rope adjusting rope

suspension-,
safety rope

acc. BGV C1

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Surround arrangement INA 5-R, suspended, TÜV-certificated

JR INA 5-R

SR INA 5

DELIVERY
Surround arrangement INA 5-R black matt
with Elastic suspension for Ø 21 mm,
Connection cable CS.1 INA 5-R (10 m, ELKA 17 RFVD to 5 x XLR 3-pin, Au),
5 pcs Windscreen W INA 5-R, anthracite
5 pcs Rain shield RS INA 5-R,
3 pcs Velcro-band
in suitcase

optionally equipped with

5 pcs M 930 dark bronze Order-No. 2111101

5 pcs M 940 dark bronze Order-No. 2111102
5 pcs M 950 dark bronze Order-No. 2111103

for suspended version:

Microphone suspension MA 5-R TÜV-certificated, acc. BGV C1 Order-No. 212319
5 pcs Circlip SR INA 5
2 pcs Adjusting ring JR INA 5-R
suspension-, safety- and adjusting rope, project specific on request

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© 03/2016 Microtech Gefell GmbH

Microtech Gefell GmbH · Georg-Neumann-Platz · 07926 Gefell · Germany

Phone +49 (0)36649 882-0 · Fax +49 (0)36649 882-11 · www.microtechgefell.de · info@microtechgefell.de