Neumann BCM-104, Large Diaphragm Condenser Broadcast Microphone

he BCM-104 Large Diaphragm Condenser Broadcast Microphone from Neumann features a large-diaphragm, cardioid condenser capsule. It has a 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 microphone headgrille twists off for quick cleaning. In front of the capsule, mounted on a frame holder, a fine gauze serves as a built-in popscreen. The microphone has an elastic mount against structure-borne noise, that is compatible with standard broadcast-segment microphone arms.

The microphone headgrille houses the K 04 large-diaphragm capsule, which has a flat frequency response up to 3 kHz. Higher frequencies have an increased presence up to 2 dB. Since the above-mentioned microphone characteristics are obtained without the use of resonance effects, the microphone features excellent transient response and transmits all transient phenomena of music and speech without any coloration.

A pop screen not only prevents the occurrence of plosive pop noises in vocal recordings, but also efficiently prevents unwanted particles, from respiratory moisture, nicotine, to food remnants, from settling on the diaphragm. The pop screen can be removed for cleaning without the use of tools.

Instead of a transformer to couple the microphone output to the supply voltage, the BCM-104 has an electronic circuit which, like a transformer, provides for good common mode rejection. Interference induced in the balanced modulation line is thus suppressed effectively. With a very low self-noise of 7 dB(A), and an overload capability extending to 138 dB SPL, the BCM-104 has a dynamic range of 131 dB (A-weighted).

• Cardioid microphone for incredible studio vocals, voice-overs, and instruments
• Subsonic filter suppresses frequencies below 20Hz
• 100Hz highpass filter compensates for proximity effect
• 14dB pad for loud sources and preamp compatibility
• Distinctive design with integrated pop screen
• Pop screen prevents plosives and protects the capsule
• Quick-release head grille for easy cleaning
• Individual head grilles available for each user
• Requires 48V phantom power