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Neumann BCM 705
Photo: Neumann, from its manual, p. 1.

Neumann

Neumann BCM 705

Dynamic broadcast and podcast microphone, hypercardioid, end-address, with built-in pop screen and elastic mount for a boom arm

Type
Dynamic
Pattern
Hypercardioid
Sensitivity
−55.4 dBV/Pa
Self-noise
18 dB(A)
Max SPL
150 dB SPL
Impedance
200 Ω
Rated range
20 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the manual, p. 7. Near field at 5 cm (labelled "Nahfeld / Near field 5cm"); otherwise as the free-field curve.

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, p. 7. Free field, IEC 60268-4 (as the response). 125 Hz to 1 kHz drawn on the left half, 2 to 16 kHz on the right; the pattern is taken as symmetric. 5 dB per ring, centre -25 dB.

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All specs

From the manual
Sensitivity−55.4 dBV/Pa (1.7 mV/Pa), 1 kHz into 10 kohm rated load; ±1 dB. As printed.p. 5
Self-noise18 dB(A), DIN/IEC 651 (A-weighted). "Equivalent SPL DIN/IEC 651 ... 18 dB-A". The quick guide: IEC 60268-1, A-weighting IEC 61672-1, RMS.
Self-noise (CCIR 468)32 dB, CCIR 468-3
Signal-to-noise ratio76 dB, re 94 dB SPL, A-weighted (DIN/IEC 651); also 62 dB, re 94 dB SPL, CCIR 468-3
Output impedance200 ohm, rated impedance
Rated load impedance10000 ohm, rated load impedance. "10 kohms"; the quick guide "10000 Ω".
Rated frequency range20 Hz to 20 kHz
Poweringnone (passive dynamic). "The microphone does not require a power supply."p. 2
ConnectorXLR-3 male. "a male 3-pin XLR connector insert"; pin 1 ground, pin 2 +phase, pin 3 -phase (p. 2).p. 3
Weight500 gp. 5
Dimensions64 × 85 × 110 mm. Diameter 64 mm, length 85 mm, height 110 mm "without suspension".
Acoustic operating principlePressure gradient transducer
VoicingBass response designed to compensate for the proximity effect in close speech; "a gentle presence boost above 2 kHz"p. 3
Pop screen and mountIntegrated foam pop screen behind a headgrille that twists off without tools; capsule and microphone both elastically suspended; mount for standard studio boom arms with a thread adapter
Accessories (manual)SG 5 swivel mount; BCK replacement headgrille; PS 15, PS 20 a popscreens; WS 47 windscreen; IC 3 mt cable; AC 25 adapterp. 8
From the quick guide
Operating temperature0 °C to +70 °Cp. 2
Storage temperature−20 °C to +70 °C
Humiditymax. 90 % at +20 °C
From the catalog
Max SPL150 dB SPL. Only in the summary panel ("Max SPL 150 dB"), also on the product page; no condition. The manual's and the quick guide's data tables give no maximum SPL (the quick guide prints "-").p. 59
From the product page
Finishsatin nickel (BCM 705); matte black (BCM 705 mt). Cat. no. 008507 nickel; BCM 705 mt, black, cat. no. 399008 ("Now available in black"). The 2012 manual lists only the nickel version.p. 1

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.com

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