Neumann BCM 104 Large Diaphragm Cardioid Condenser

Neumann BCM104 Large Diaphragm Cardioid Condenser | Nickel : 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.

Key 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

Technical Specs

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, CCIR
18 dB
Equivalent noise level, A-weighted
7 dB-A
Signal-to-noise ratio, CCIR (rel. 94 dB SPL)
76 dB
Signal-to-noise ratio, A-weighted (rel. 94 dB SPL)
87 dB-A
Maximum SPL for THD 0.5 %
138 dB
Maximum SPL for THD 0.5 % with preattenuation
152 dB
Maximum output voltage
10 dBu
Dyn. range of the mic. amplifier (A-weighted)
131 dB
Supply voltage (P48, IEC 61938)
48 V ± 4 V
Current consumption (P48, IEC 61938)
3.2 mA
Matching connector
XLR 3F
Weight
500 g, 1.1 lbs
Diameter
64 mm
Length
85 mm
Height
110 mm