SHURE SM7B Cardioid Dynamic Microphone

• Smooth, wide frequency response with slight presence rise
• Uniform cardioid polar pattern for maximum isolation
• Minimal off-axis tone coloration
• Low-frequency roll-off compensates for proximity effect
• Three-stage pop filter minimizes breath pop and noise
• Break-resistant stand adapter
• Frequency response: 50 to 20,000 Hz

The UNlDYNE? III Model 545SD is a dual-impedance, unidrectional, dynamic microphone. Shipped connected for low-impedance operation, it features a silent magnetic reed on/off switch.

The 545SD is a favorite for instrument pickup and recording, and can be used on lecterns for public address systems such as those used in political conventions and legislatures, convention halls, hotels, public auditoriums, stadiums, schools, and churches.

• Exceptionally uniform cardioid pattern minimizes feedback in PA applications
• Selectable dual-impedance operation
• Silent magnetic reed on/off switch with lock-on option
• Cardioid dynamic
• Frequency response: 50 to 15,000 Hz.

The first Neumann microphone with a dynamic capsule. Functionally optimized design
specifically for the broadcast field, featuring integrated pop protection, suppression of
structure-borne noise and a hypercardioid directional characteristic. 
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. Iin front of the capsule, mounted on a frame holder, a fine gauze serves
as a built-in popscreen.
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. The pop screen can be removed for cleaning without the use of tools.
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.
 
FEATURES:
Dynamic capsule
Hypercardioid directional characteristic
Characteristic, functionally optimized design*
Integrated, neutral 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
Multi-level isolation from structure-borne noise
No power supply required

APPLICATION HINTS:
Announcer's mic for broadcasting and studio

This is just one of the most common applications. We recommend
additional experimentation to gain maximum use from this microphone.

TECHNICAL DATA:
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 = ?55,4 dB ± 1 dB
Rated impedance 200 ohms
Rated load impedance >= 10,000 ohms
Equivalent SPL CCIR 468-3 32 dB
Equivalent SPL DIN/IEC 651 18 dB-A
S/N ratio CCIR 468-3 62 dB
S/N ratio DIN/IEC 651 76 dB
Weight 500 g
Diameter 64 mm
Length 85 mm
Height (without suspension) 110 mm