Mic Archive
Microtech Gefell M 940
Photo: Microtech Gefell, from its spec sheet, p. 1.

Microtech Gefell

Microtech Gefell M 940

Compact side-address large-diaphragm supercardioid condenser (PE diaphragm, transformerless transistor preamp)

Type
Condenser
Pattern
Supercardioid
Sensitivity
−32.8 dBV/Pa computed
Self-noise
6 dB(A)
Max SPL
141 dB SPL
Impedance
100 Ω
Rated range
20 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the spec sheet, p. 2. Graph with lines labelled "0°" and "180°" (the 2016 brochure labels the lower line "135°"); relative dB (0° is 0 dB in the mids). Distance, room and smoothing not stated. 0° drawn from the left edge (about 40 Hz) to the right edge (20 kHz); the lower line leaves the bottom of the graph (about -26 dB) near 10 kHz.

Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.

Polar pattern

Polar pattern: from the spec sheet, p. 2. Three polar plots, 0° up, each with 1 kHz and two other frequencies; rings 0, -10, -20 dB labelled (5 dB per ring). Measuring conditions not stated.

Compare with other mics

All specs

From the spec sheet
Capsulelarge-diaphragm pressure-gradient capsule, PE diaphragm. "large diaphragm capsule", "PE diaphragm" (p. 1); "Acoustic operating principle: Pressure gradient transducer" (p. 2).p. 1
Sensitivity−32.8 dBV/Pa (23 mV/Pa), 1 kHz. Not stated by the manufacturer: From "23 mV/Pa": 20·log10(0.023).p. 2
Self-noise6 dB(A), IEC 268-4. "Inherent noise IEC 268-4: 6 dB(A)". The 2016 brochure says "DIN EN 60268-4: 6 dB-A" (p. 8).
Self-noise (CCIR 468)12 dB, CCIR 468-4
Max SPL141 dB SPL, 0.5% THD
Signal-to-noise ratio88 dB, re 1 Pa at 1 kHz, A-weighted; also 82 dB, re 1 Pa at 1 kHz, CCIR-weighted
Dynamic range135 dB, of the electronics
Output impedance100 ohm
Rated frequency range20 Hz to 20 kHz; also [40, 20000], 2016 brochure. "20 to 20.000 Hz". The 2016 brochure gives "40 ... 20.000 Hz" for all three models (p. 8), and both response graphs start at 40 Hz.
PoweringP48 phantom (IEC 61938)
Current draw3.6 mA, P48. "3,6 mA".
ConnectorXLR-3M. The brochure adds "goldplated contacts" (p. 8).
Weight210 g. The brochure: "Weight without MH 93.1" (p. 8).
Dimensions118 × 45 mm. Length × diameter, "118 mm x 45 mm".
Finishsatin nickel or dark bronze
Max. output level18 dBu (RL = 10 kΩ); 17 dBu (RL = 1 kΩ)
MountsMicrophone holder MH 93.1 (standard); elastic suspensions EA 93 (with A 93 adaptor) or EH 93 Pp. 1
AccessoriesW 76 windscreen; P 110.20 popscreen; C 70.1 / C 70.1 HF 10 m XLR cables
Description"the smallest large membrane microphone"
From the catalog
OutputTransformerlessp. 1
Internal suspensionCapsule and electronics elastically suspended inside the metal housingp. 4
Response character"a smooth frequency response with a slight presence boost in the 7 to 11 kHz range"; high rejection of sound from the sides (super-cardioid)
StereoXY (SH 93 stereo holder) and ORTF (TD 93 tandem, 170 mm, 110°)p. 10

Documents

Copies kept by Mic Archive, because manufacturers move and drop their documents. Each is © Microtech Gefell, unchanged, with its original address.

Product page on microtechgefell.deRecording Hacks

Recommended for

Instruments whose sources name this mic, or an earlier version or variant of it.

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