Broadcast Microphone

BCM 104

The state of the art broadcast microphone from Neumann

  • Specially designed for broadcast, podcast & streaming
  • All-new speech optimized condenser capsule
  • Integrated pop-screen and elastic suspension
BCM 104
BCM 104

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Suited for:

Max. SPL
152 dB
S/N Ratio
87 dB
Sensitivity
22 mV/Pa

Next Generation Broadcast Microphone

The BCM 104 is a dedicated broadcast microphone for radio, streaming and podcast, designed to convey emotion with Neumann perfection. Its functionally optimized design features an integrated pop screen and a shock protected large diaphragm condenser capsule, specially developed for speech. Transformerless circuitry ensures a direct, noise-free sound.

Dealer Description

You Speak – the World Listens

Broadcast, live streaming and podcast are the most immediate ways to reach your listeners. That’s why Neumann decided to develop the BCM line to specifically address the requirements of radio DJs, announcers, newscasters, talk show hosts, podcasters and all those who guide us through the day with their stories, good vibes, and the latest information.
 
The BCM 104 is designed to convey emotion with perfection. Its characteristic shape is functionally optimized for use with industry standard microphone boom arms. Thanks to its elastic mount, the 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 coloration or unwanted artifacts. The BCM 104’s electronic circuit ensures 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 is 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). Both switches are hidden inside the microphone as the low cut and pre-attenuation options are usually selected only once, at setup.
 

Designed For The Human Voice

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. Because of its wide frequency response, the BCM 104 can be used for much more than speech applications, e.g. sung vocals and a wide variety of instruments. 
 
 
  • Functionally optimized 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

The Neumann BCM series also includes a variant with a dynamic capsule, the BCM 705.

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, 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, CCIR (re. 94 dB SPL)¹⁾ 76 dB
Signal-to-noise ratio, A-weighted (re. 94 dB SPL)¹⁾ 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)

1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS

2) measured as equivalent el. input signal

Diagrams

Cardioid BCM 104

Cardioid BCM 104 Cardioid BCM 104
TLM 49 Set

PS 15

Popscreen

PS 15
TLM 49 Set

PS 20 a

Popscreen

PS 20 a
TLM 49 Set

WS 47

Windscreen

WS 47
TLM 49 Set

N 248

Power Supply

N 248
TLM 49 Set

SG 5

Swivel Joint

SG 5
TLM 49 Set

IC 3 mt

Microphone Cable

IC 3 mt

BCM 104

Color nickel

CAT. NO. 008483

BCM 104
  • BCM 104 microphone

Suited for:

Max. SPL
152 dB
S/N Ratio
87 dB
Sensitivity
22 mV/Pa

Reviews

"... since the quality of the BCM 104 is optimal for broadcast speaking applications. This applies not only to the sound characteristics, but also to the overall handling features, with the replaceable headgrille, pop protection and hidden switches for the preattenuation and high-pass filter."
Production Partner, September 2003

"In addition to looking the part of a 21st-century mic, the BCM´s impressive specs and sound should please any discerning audio pro."
MIX Magazine, August 2004

BCM 104 review on bonedo.de, German, January 2019
Bonedo
LINK

"There´s no doubt that the Neumann BCM 104 made a big impression - as you would expect from a very well engineered package - the built-in mount is a really great idea - and the sound is very, very good."
Audio Media, March 2004

WARNING (for California residents only): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects and other reproductive harm. For more information go to: www.p65warnings.ca.gov.

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