Mic Archive
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

Power None (passive dynamic). Low output: it needs a lot of preamp gain.

Type
Dynamic
Pattern
Hypercardioid
Sensitivity
−55.4 dBV/Pa
vs 44 end-address dynamics

More output than 42% of 44 end-address dynamics.

Each stripe is one end-address dynamic with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.

  • Among 78 dynamics: more output than 34%
  • Among 311 mics: more output than 12%
Self-noise
18 dB(A)
vs 272 mics

Quieter than 32% of 272 mics.

Each stripe is one mic with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.

Max SPL
150 dB SPL
vs 19 end-address dynamics

Takes louder sound than 89% of 19 end-address dynamics.

Each stripe is one end-address dynamic with a published max SPL, and each bar counts them; further right means it takes louder sound. This mic is in blue.

  • Among 36 dynamics: takes louder sound than 94%
  • Among 343 mics: takes louder sound than 91%
Rated range
20 – 20k Hz

Frequency response

Angle

Distance

From the manual, p. 7.

Polar pattern

Transparency

From the manual, p. 7.

Compare with other mics

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-noiseCCIR 46832 dBCCIR 468-3
Signal-to-noise ratio76 dBre 94 dB SPL, A-weighted (DIN/IEC 651); also 62 dB, re 94 dB SPL, CCIR 468-3
Output impedance200 ohmrated impedance
Rated load impedance10000 ohmrated 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 mmDiameter 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
AccessoriesmanualSG 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 SPLOnly 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 (manufacturers move and drop their documents). Each is © Neumann, unchanged, with its original address.

Product page on neumann.com

Other mics

More from Neumann

All 35 Neumann mics

Other hypercardioid dynamic mics

All 419 mics