BCM 705

BCM 705

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.

The BCM 705 is Neumann’s first dynamic microphone. The housing and headgrille are identical to those of the BCM 104; only the green logo indicates that this is something new from Neumann. The principle of reduction to the essentials can be seen in the dynamic capsule with a hypercardioid directional characteristic, specifically designed for speech reproduction at close range. Multi-level isolation from structure-borne noise ensures operation free of interference, even in a lively studio environment.

Mechanical features

The microphone headgrille twists off easily for quick cleaning. Neumann offers optional, color-coded headgrilles so that, for reasons of hygiene, each announcer can use his or her individual headgrille.

The microphones of the Broadcast Line have an elastic mount against structure-borne noise, that is compatible with standard broadcast-segment microphone arms.

Acoustic features

The frequency response has a light treble boost, in the region from 2 kHz to 9 kHz, aiding the speech intelligibility. The bass frequency response is designed to compensate for the overemphasis of the bass caused by the proximity effect.

The integrated Pop Screen

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.

Mounting

The preferred mode of operation is to suspend the BCM 104 or BCM 705 from a standard studio boom arm.

A thread adapter to fit different connector threads is included. In order to provide protection from structure-borne noise, both the capsule and the microphone in its mount are elastically suspended.

The optional SG 5 swivel mount allows additional angling of the microphone by +/-90 degrees.

 

* The design of the microphone is a registered design of the Georg Neumann GmbH in certain countries.

Dynamic capsule

Hypercardioid directional characteristic

Characteristic, functionally optimized design*

Integrated pop protection

Integrated 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

Multi-level isolation from structure-borne noise

No power supply required

Acoustical operating principle Pressure gradient transducer
Directional pattern Hypercardioid
Frequency range 20 Hz … 20 kHz
Sensitivity at 1 kHz into 10 kohm 1.7 mV/Pa
Rated impedance 200 ohms
Rated load impedance 10 kohms
Equivalent noise level, CCIR1) 32 dB
Equivalent noise level, A-weighted1) 18 dB-A
Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL) 62 dB
Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL) 76 dB
Weight 500 g
Diameter 64 mm
Length 85 mm
Height (without suspension) 110 mm

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

Delivery Range

BCM 705 microphone

BCM 705 nickel Cat. No. 008507