Neumann
Neumann U 67
Large-diaphragm tube condenser (EF 86), omni, cardioid and figure-8; discontinued (the specs here are for the 1992 reissue)
Approximate Some readings for this mic are uncertain; see the graphs.
Power NU 67 A power supply (plate +210 V, heater -6.3 V).
- Type
- Condenser
- Pattern
- Switchable, 3
- Sensitivity
- −32.4 dBV/Pa computed
- Self-noise
- 17 dB(A)
- Among 258 condensers: quieter than 40%
- Among 272 mics: quieter than 41%
- Max SPL
- 114 dB SPL
- Among 277 condensers: takes louder sound than 2%
- Among 343 mics: takes louder sound than 1%
- Rated range
- 20 – 20k Hz
- Released
- 1960
vs 99 side-address condensers
Quieter than 20% of 99 side-address condensers.
Each stripe is one side-address condenser with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.
vs 107 side-address condensers
Takes louder sound than 4% of 107 side-address condensers.
Each stripe is one side-address condenser with a published max SPL, and each bar counts them; further right means it takes louder sound. This mic is in blue.
Instruments sources recommend it for most
5 of 8; all under Recommended for.
Proximity effect: the bass it gains up close
From the manual 1992 rh, p. 6.
Nominal curve with a tolerance band (dashed, not read); measuring conditions not stated.
Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.
Polar pattern
From the manual 1992 rh, p. 7. Approximate
Polar plot for omni (page 7), 0° at the top, rings labelled 0 to 20 dB down (unevenly spaced), centre -25 dB. Measuring conditions not stated.
Approximate: reading error up to about 1 dB.
In practice
All specs
| From the manual 1992 rh | ||
|---|---|---|
| Values per pattern are printed as omni/cardioid/figure-8; the cardioid value is the main one here. | ||
| Capsule | pressure-gradient transducer, large dual diaphragm | p. 5 |
| Sensitivity | −32.4 dBV/Pa (24 mV/Pa)cardioid, 1 kHz into 1 kohm; ±1 dB; also −36.5 dBV/Pa, omni; also −35.9 dBV/Pa, figure-8. Not stated by the manufacturer: Printed as 15/24/16 mV/Pa; converted with 20·log10(mV/1000). | |
| Self-noise | 17 dB(A)cardioid; DIN/IEC 651; also 21 dB(A), omni; also 20 dB(A), figure-8. | |
| Self-noiseCCIR 468 | 28 dBcardioid; DIN 45 590 / DIN 45 405, CCIR 468-3; also 32 dB, omni; also 31 dB, figure-8. | |
| Max SPL | 114 dB SPLless than 0.5% THD; also 124 dB SPL, with pre-attenuation. THD of the amplifier at an input equal to the capsule output at that SPL; max. output voltage 250 mV each. | |
| Signal-to-noise ratio | 66 dBcardioid; re 1 Pa at 1 kHz, CCIR 468-3; also 62 dB, omni; also 63 dB, figure-8. | |
| Output impedance | 200 ohm | |
| Rated load impedance | 1000 ohm | |
| Rated frequency range | 20 Hz to 20 kHz | |
| Powering | NU 67 A power supply (plate +210 V, heater -6.3 V)Plate +210 V ± 2%, ≤ 1 mA; heater -6.3 V ± 2%, ≤ 200 mA. | |
| Weight | 560 g | |
| Dimensions | 56 × 201 mmDiameter × length. | |
| Noiseold standard | 28/25/28 dB (DIN 45 405, valid until 1983), omni/cardioid/figure-8 | |
| Tube | Pentode EF 86, selected; warm-up about 1 minute; runs at about 45 °C | |
| From the Recording Hacks page | ||
| Released | 1960 | |
Documents
- Betriebsanleitung / Operating Instructions for the U 67 Condenser Microphone1992 reissue
- U 67 operating instructions1963
- Neumann U 67 | RecordingHacks.com
Copies kept by Mic Archive (manufacturers move and drop their documents). Each is © Neumann, unchanged, with its original address.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.
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