Neumann BCM104

State-of-the-art broadcast microphone, large diaphragm condenser
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Our price:$1,739.00 GST
Order Code: BCM104

Available on backorder

Neumann BCM104 large diaphragm broadcast condenser microphone is a first choice for discerning radio stations around the world.

The characteristic shape of BCM 104 is is functionally optimised for use with industry standard microphone boom arms. Thanks to its elastic mount, BCM 104 is well protected against structure borne noise. An integrated pop screen behind the headgrille protects the capsule from air blasts and plosives. For increased hygiene, the headgrille twists off easily for quick cleaning.

The large diaphragm condenser capsule of the BCM 104 captures each nuance of your voice without colouration or unwanted artefacts. BCM 104’s electronic circuit has an extremely low self-noise of only 7 dB-A and can handle enormous sound pressure levels of up to 138 dB without distortion. Its balanced output operates transformerless to ensure minimal hum interference and high common mode rejection against extraneous signals e.g. from computer screens. A subsonic filter suppresses frequencies below 20 Hz. For close speech operation, an optional 100 Hz low cut is available to compensate for the proximity effect. A second switch activates a –14 dB pre-attenuation to reduce the BCM 104’s output level for use with equipment designed for dynamic microphones (which typically have a much lower sensitivity than condenser microphones).

The BCM 104 has a fixed cardioid pattern with excellent rejection of rearward sound. Its frequency response is very linear with a gentle presence boost around 4 kHz and a slight treble lift above 10 kHz for enhanced speech intelligibility. Due to its outstanding transient response, the BCM 104 captures each nuance of the human voice with stunning detail.

If you prefer the sound of a dynamic microphone – check out BCM705.

BCM 104 features:

  • Functionally optimised design
  • Specially designed large diaphragm condenser capsule
  • Tight cardioid pattern
  • Integrated pop screen and shock mount
  • Headgrille twists off easily for quick cleaning
  • Internal pad and low cut switches
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 = –33.1 dBV ± 1 dB
Sensitivity at –14 dB attenuation 4.4 mV/Pa
Rated Impedance 50 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR 1 18 dB
Equivalent noise level, A-weighted 2 7 dB-A
Maximum SPL for THD 0.5% 3 138 dB
Maximum SPL for THD 0.5% with preattenuation 4 152 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL) 5 76 dB
Signal-to-noise ratio, A-weighted (re. 94 dB SPL) 6 87 dB
Maximum output voltage 10 dBu
Supply voltage (P48, IEC 61938) 48 V ± 4 V
Current consumption (P48, IEC 61938) 3.2 mA
Matching connector XLR 3 F
Weight 500 g
Diameter 64 mm
Length 85 mm
Height 110 mm (without suspension)

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