beyerdynamic
beyerdynamic Opus 87
Back-electret condenser, cardioid, drum mic on a short gooseneck, with the preamp built into its rim clamp
Power Phantom 12 to 48 V (48 V recommended).
- Type
- Condenser (electret)
- Pattern
- Cardioid
- Sensitivity
- −46 dBV/Pa
- Among 204 condensers: more output than 16%
- Among 311 mics: more output than 41%
- Self-noise
- 22 dB(A)
- Among 258 condensers: quieter than 16%
- Among 272 mics: quieter than 15%
- Max SPL
- 136 dB SPL
- Among 277 condensers: takes louder sound than 45%
- Among 343 mics: takes louder sound than 42%
- Rated range
- 30 – 20k Hz
vs 16 clip-on condensers
More output than 60% of 16 clip-on condensers.
Each stripe is one clip-on condenser with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
vs 14 clip-on condensers
Quieter than 92% of 14 clip-on condensers.
Each stripe is one clip-on condenser with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.
vs 16 clip-on condensers
Takes louder sound than 33% of 16 clip-on condensers.
Each stripe is one clip-on condenser with a published max SPL, and each bar counts them; further right means it takes louder sound. This mic is in blue.
Proximity effect: the bass it gains up close
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.
In practice
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-noise | 22 dB(A)"A-weighted equivalent SPL 22 dB". | |
| Max SPL | 136 dB SPL1 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 ratio | 64 dBre 1 Pa. "S/N ratio 64 dB"; "rel. to 1 Pa" in the product information (p. 6). Not stated whether weighted. | |
| Output impedance | 200 ohmnominal | |
| Rated load impedance | 1000 ohmminimum ("> 1 kΩ") | |
| Rated frequency range | 30 Hz to 20 kHz | |
| Powering | phantom 12 to 48 V (48 V recommended) | |
| Current draw | 6 mAmaximum ("< 6 mA") | |
| Connector | XLR-3 male"3-pin XLR, male", on the clamp. | |
| Weight | 145 gapprox., including clamp. "Weight incl. clamp approx. 145 g"; the product information says "without cable". | |
| Dimensions | 85 × 102 mmClamp width × height ("Clamp (W x H) 85 x 102 mm"); gooseneck length 72 mm. | |
| Order number | 459.348 | p. 1 |
| Mounting | Rim 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) | ||
| Gooseneck | Bend no more than 90°, to avoid overstretching and wear | p. 2 |
| Polarity | Positive pressure produces positive voltage on pin 2 | p. 9 |
| Applicationsbeyerdynamic | Drums such as snare or toms | p. 5 |
Documents
- Opus 87 Condenser Microphonedata sheet, order # 459.348
- Opus 87 Product InformationDEF3/PI Opus 87 (01.06)
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © beyerdynamic, unchanged, with its original address.
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