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beyerdynamic

beyerdynamic Opus 87

Back-electret condenser, cardioid, drum mic on a short gooseneck, with the preamp built into its rim clamp

Type
Condenser (electret)
Pattern
Cardioid
Sensitivity
−46 dBV/Pa
Self-noise
22 dB(A)
Max SPL
136 dB SPL
Impedance
200 Ω
Rated range
30 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the spec sheet (Recording Hacks copy), p. 2. Titled "Sollfrequenzkurve +/- 2,5dB, 0dB = 5mV/Pa" (nominal curve, ±2.5 dB); "correspond to a typical production sample"; specifications "measured at 48 V phantom power"; 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)
Sensitivity−46 dBV/Pa (5 mV/Pa), open circuit, at 48 V phantom. "5 mV/Pa = -46 dBm" (sic: 5 mV/Pa is -46 dBV); "measured at 48 V phantom power". The graph says "0 dB = 5 mV/Pa".p. 2
Self-noise22 dB(A). "A-weighted equivalent SPL 22 dB".
Max SPL136 dB SPL, 1 kHz, 48 V phantom; also 126 dB SPL, 1 kHz, 12 V phantom. "Max. SPL at f = 1 kHz 136 dB (at 48 V phantom power), 126 dB (at 12 V phantom power)"; distortion level not stated.
Signal-to-noise ratio64 dB, re 1 Pa. "S/N ratio 64 dB"; "rel. to 1 Pa" in the product information (p. 6). Not stated whether weighted.
Output impedance200 ohm, nominal
Rated load impedance1000 ohm, minimum ("> 1 kΩ")
Rated frequency range30 Hz to 20 kHz
Poweringphantom 12 to 48 V (48 V recommended)
Current draw6 mA, maximum ("< 6 mA")
ConnectorXLR-3 male. "3-pin XLR, male", on the clamp.
Weight145 g, approx., including clamp. "Weight incl. clamp approx. 145 g"; the product information says "without cable".
Dimensions85 × 102 mm. Clamp width × height ("Clamp (W x H) 85 x 102 mm"); gooseneck length 72 mm.
Order number459.348p. 1
MountingRim clamp with integrated preamp; the capsule sits on a 72 mm gooseneck. The clamp alone, without preamp, was sold as MKV 87 with a 3/8" thread
From the user guide (Recording Hacks copy)
GooseneckBend no more than 90°, to avoid overstretching and wearp. 2
PolarityPositive pressure produces positive voltage on pin 2p. 9
Applications (beyerdynamic)Drums such as snare or tomsp. 5

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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