Mic Archive
beyerdynamic MC 930
Photo: beyerdynamic, from its spec sheet, p. 1.

beyerdynamic

beyerdynamic MC 930

Small-diaphragm true condenser, cardioid, pencil-style, with -15 dB pad and low-cut filter

Approximate Some readings for this mic are uncertain; see the graphs.

Type
Condenser
Pattern
Cardioid
Sensitivity
−30.5 dBV/Pa
Self-noise
16 dB(A)
Max SPL
125 dB SPL
Impedance
180 Ω
Rated range
40 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the spec sheet, p. 2. Titled "Frequency response curve ± 2 dB", "0 dB = 30 mV/Pa"; "correspond to a typical production sample". Distance, room and smoothing not stated.

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. Untitled polar under "Frequency response & polar pattern" ("a typical production sample"); one circle, 5 dB rings to -20 dB. Measuring conditions not stated. Approximate reading error up to about 1 dB; some frequencies are identified by reasoning, not by the legend: 4k Hz, 8k Hz.

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All specs

From the spec sheet
CapsuleSmall diaphragm, true (externally polarised) condenser. Not stated by the manufacturer: "True condenser"; the data sheet speaks of "the clear sound and high impulse fidelity of small-diaphragm condenser microphones" (p. 1). The diaphragm size is not given.p. 1
Sensitivity−30.5 dBV/Pa (30 mV/Pa), 1 kHz. "Sensitivity (0 dB = 1 V/Pa) 30 mV/Pa (= -30.5 dBV)". The 2008 sheet gives it as open circuit voltage at 1 kHz.p. 2
Self-noise16 dB(A). "A-weighted equivalent SPL 16 dB".
Max SPL125 dB SPL, 1 kHz; distortion not stated; also 140 dB SPL, with pre-attenuation (pad). "Max. SPL at 1 kHz 125 dB, with pre-attenuation 140 dB".
Signal-to-noise ratio71 dB, rel. to 1 Pa
Output impedance180 ohm, nominal
Rated load impedance1000 ohm. "Load impedance 1000 Ω".
Rated frequency range40 Hz to 20 kHz
Poweringphantom, 11 - 52 V
Current draw4.6 mA
Low cutoff, 250 Hz, 6 dB/octave; 250 Hz; 6 dB/octave. "Low-cut filter: switchable, 6 dB/octave at 250 Hz". The manual: a slide switch on the front (left), "below 250 Hz", to offset proximity effect (p. 6).
ConnectorXLR-3 male. "3-pin XLR, male".
Weight106 g; also 115, "without cable" (2008 sheet, p. 2)
Dimensions128 × 21 mm. Length × diameter.
Order number730.211 (MC 930); 730.238 (MC 930 Stereo Set). The 2008 sheet: 465.267 and 471.968p. 1
Stereo set2 matched MC 930 (selected by frequency response and sensitivity), 2 EA 19/25 elastic suspensions, 2 MA-CL 36 clamps, 2 WS 53 wind shields, storage case
Optional accessoriesEA 19/25 elastic suspension with MA-CL 36 clamp (order # 407.194); MA-CL 21 clamp (727.946); WS 101 wind shield, charcoal grey (111.244); WS 53 small wind shield, charcoal grey (436.607)
Made inGermany ("Handcrafted in Germany")
From the manual
Pad−15 dB. "switchable pre-attenuation (-15dB)"; the right slide switch on the front, imprint "-15 dB" (p. 6).p. 6
Supplied accessoriesMA-CL 21 microphone clamp (3/8" thread, insert removable for 5/8"); storage case; individual measurement chart. Box contents of the single microphone; also an "M Series Guide" info sheet and the M series specifications (p. 4). The clamp's thread from p. 6.p. 4

Documents

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

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