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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.

Type
Condenser
Pattern
Omni / cardioid / figure-8
Sensitivity
−32.4 dBV/Pa computed
Self-noise
17 dB(A)
Max SPL
114 dB SPL
Impedance
200 Ω
Rated range
20 – 20k Hz

Frequency response

Angle
Distance

Frequency response: 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

Polar pattern: from the manual 1992 rh, p. 7. 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.

Compare with other mics

All specs

From the manual 1992 rh
Capsulepressure-gradient transducer, large dual diaphragmp. 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). Values per pattern are printed as omni/cardioid/figure-8; the cardioid value is the main one here.
Self-noise17 dB(A), cardioid; DIN/IEC 651; also 21 dB(A), omni; also 20 dB(A), figure-8. Values per pattern are printed as omni/cardioid/figure-8; the cardioid value is the main one here.
Self-noise (CCIR 468)28 dB, cardioid; DIN 45 590 / DIN 45 405, CCIR 468-3; also 32 dB, omni; also 31 dB, figure-8. Values per pattern are printed as omni/cardioid/figure-8; the cardioid value is the main one here.
Max SPL114 dB SPL, less 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 ratio66 dB, cardioid; re 1 Pa at 1 kHz, CCIR 468-3; also 62 dB, omni; also 63 dB, figure-8. Values per pattern are printed as omni/cardioid/figure-8; the cardioid value is the main one here.
Output impedance200 ohm
Rated load impedance1000 ohm
Rated frequency range20 Hz to 20 kHz
PoweringNU 67 A power supply (plate +210 V, heater -6.3 V). Plate +210 V ± 2%, ≤ 1 mA; heater -6.3 V ± 2%, ≤ 200 mA.
Weight560 g
Dimensions56 × 201 mm. Diameter × length.
Noise (old standard)28/25/28 dB (DIN 45 405, valid until 1983), omni/cardioid/figure-8
TubePentode EF 86, selected; warm-up about 1 minute; runs at about 45 °C

Documents

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

Product page on neumann.comRecording Hacks

Recommended for

Instruments whose sources name this mic, or an earlier version or variant of it.

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