Mic Archive
beyerdynamic M 99
Photo: beyerdynamic, from its spec sheet (Recording Hacks copy), p. 1.

beyerdynamic

beyerdynamic M 99

Dynamic (moving coil), hypercardioid, large studio and broadcast mic with switchable presence and bass-drum EQ

Type
Dynamic
Pattern
Hypercardioid
Sensitivity
−54 dBV/Pa
Impedance
280 Ω
Rated range
30 – 18k Hz

Frequency response

Angle
Distance

Frequency response: from the spec sheet (Recording Hacks copy), p. 2. Graph A, "M 99 pos. linear": "Frequency response ± 2.5 dB", "0 dB = 2 mV/Pa", "Measuring distance 1 m"; the sheet says the curves correspond to "a typical production sample". Room not stated.

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

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All specs

From the spec sheet (Recording Hacks copy)
CapsuleMoving coil, Hostaphan diaphragm, neodymium magnet. "Diaphragm: Hostaphan®" (p. 2); neodymium magnet system (p. 1).p. 2
Sensitivity−54 dBV/Pa (2 mV/Pa), open circuit, 1 kHz; also −50.5 dBV/Pa, open circuit, 1 kHz; the 3.0 mV/Pa figure, which the graphs give for the presence setting. "Open circuit voltage at 1 kHz: 3.0 mV/Pa / 2 mV/Pa"; converted (20 log10 0.002 and 0.003). The sheet doesn't say which figure goes with which setting; the graphs put 0 dB at 2 mV/Pa for linear and bass drum and at 3 mV/Pa for presence.
Output impedance280 ohm, nominal
Rated load impedance1000 ohm, minimum ("≥ 1000 Ω")
Rated frequency range30 Hz to 18 kHz. "30 - 18,000 Hz (refer to frequency responses)".
Poweringnone (passive). Not stated by the manufacturer: A dynamic mic; no powering is mentioned.
ConnectorXLR-3 male. "3-pin XLR male".
Weight421 g, without cable
Dimensions56 × 163 mm. Head diameter × length: "Length: 163 mm", "Head diameter 56 mm"; shaft diameter "23/25 mm".
Supplied accessoriesEA 90 elastic suspension (order # 452.270); ZKK 740-833 case (order # 504.580). "Supplied accessories". The 2005 product information lists only the EA 90 as included.p. 1
Magnetic field suppression> 20 dB at 50 Hzp. 2
CasingAluminium, die cast ("aircraft grade aluminium", metallic varnish)
Shaft diameter23/25 mm
Elastic suspensionIntegrated elastic suspensionp. 1
Order number445.394
From the user guide (Recording Hacks copy)
Switchesresponse: LIN, EQ; EQ: presence, bass and top lift. Two switches on the base (p. 5): the left one selects "LIN" or "EQ"; the right one, active only on EQ, selects "Presence Accentuation (Mid Lift and Top Lift)" or "Equalisation (Bass Lift and Top Lift)" for bass drum and other loud instruments. Position names shortened by us.p. 5
Optional accessoriesWS 740/834 wind screen, charcoal grey (order # 401.994); ST 99 small heavy stand for kick drum (order # 471.917)p. 6

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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