Neumann BCM 104


Broadcast microphone with a condenser capsule and a functionally optimized design, featuring integrated pop protection, suppression of structure-borne noise and a cardioid directional characteristic.

Emotion conveyed with technical perfection. This is the ideal which the Neumann microphones in the Broadcast Line have been designed to fulfill. The fine-tuning to the requirements of professional broadcast studios and the individual, functionally optimized design* ensure that these are microphones of character.

With its large-diaphragm condenser capsule and cardioid directional characteristic, the BCM 104 is ideal for the faithful reproduction of speech and music. This is due, for instance, to the frequency response that is flat up to 3 kHz and then gradually boosted in the higher frequencies. If required, internal switches can be used to compensate for the proximity effect and to reduce the sensitivity by 14 dB. The versatility of the BCM 104 can be seen in its wide range of applications, from news, to round-table discussions, to radio plays, to musical recordings.

Neumann BCM 104 Features

  • Large-diaphragm condenser capsule
  • Cardioid directional characteristic
  • Characteristic, functionally optimized design
  • Integrated pop protection
  • Integrated elastic suspension
  • Individual headgrilles for different users
  • Colored rings to identify the replacement headgrilles
  • Easy removal and cleaning of microphone headgrille (with bayonet mount)
  • Mechanical compatibility with standard studio boom arms
  • Internal switches: high-pass and pre-attenuation

Neumann BCM 104 Specifications

  • Acoustical operating principle     Pressure gradient transducer
  • Directional pattern     Cardioid
  • Frequency range     20 Hz ... 20 kHz
  • Sensitivity at 1 kHz into 1 kohm     22 mV/Pa
  • Sensitivity at –14 dB attenuation     4.4 mV/Pa
  • Rated impedance     50 ohms
  • Rated load impedance     1 kohms
  • Equivalent noise level, CCIR1)     18 dB
  • Equivalent noise level, A-weighted1)     7 dB-A
  • Maximum SPL for THD 0.5%2)     138 dB
  • Maximum SPL for THD 0.5% with preattenuation2)     152 dB
  • Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL)     76 dB
  • Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL)     87 dB
  • Maximum output voltage     10 dBu
  • Dynamic range of the microphone amplifier (A-weighted)     131 dB
  • Supply voltage (P48, IEC 61938)     48 V ± 4 V
  • Current consumption (P48, IEC 61938)     3.2 mA
  • Matching connector     XLR3F
  • Weight     500 g
  • Diameter     64 mm
  • Length     85 mm
  • Height (without suspension)     110 mm

Neumann BCM 104 Accessories

  • Adapter Cable AC 25
  • Battery Supply BS 48 i
  • Battery Supply BS 48 i-2
  • Headgrille BCK
  • Microphone Cable IC 3 mt
  • Popscreen PS 15
  • Popscreen PS 20 a
  • Power Supply N 248
  • Swivel Joint SG 5
  • Windscreen WS 47
Our ONE WITH EVERYTHING ZEN WARRANTY extends the standard manufacturer warranty by one year, see our ZEN WARRANTY page for details.

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