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Sm7b, Dynamic microphones, Specifications – Shure LEGENDARY PERFORMANCE SM7B User Manual

Page 3: Certification

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SM7B

DYNAMIC MICROPHONES

The Model SM7B dynamic microphone has a smooth, flat, wide-range frequency

response appropriate for music and speech in all professional audio applications.

It features excellent shielding against electromagnetic hum generated by computer

monitors, neon lights, and other electrical devices. In addition to its standard wind-

screen, it also includes the A7WS windscreen for close-talk applications.
The SM7B is an outstanding choice for the following applications:
• Recording Studio—Instrumental and Vocal
• Location Recording
• Motion Picture and Television Scoring
• Television, Talk Shows, and News Desks
• Radio Announcing and Production
• Narration

FEATURES

• Flat, wide-range frequency response for clean and natural reproduction of both

music and speech

• Switchable bass rolloff and mid-range emphasis (presence boost) settings
• Shielded against broadband interference from computer monitors and other

electrical devices—excellent rejection of electromagnetic hum

• Internal “air suspension” shock isolation virtually eliminates mechanical noise

transmission

• A7WS windscreen included for close-up vocals or narration
• Swiveling bracket with integrated stand adapter for easy mounting and precise

microphone positioning

• Cardioid polar pattern, uniform with frequency and symmetrical about axis, to

provide maximum rejection and minimum coloration of off-axis sound

• Rugged construction and excellent cartridge protection for outstanding reliability

WINDSCREEN

Use the standard windscreen for general voice and instrumental applications. Use

the supplied A7WS windscreen for close-talk applications, such as voice overs or

radio announcements, as it offers maximum protection from plosive breath noise

and creates a warmer, more intimate sound.

To install the A7WS, follow these instructions:
1. To avoid tearing the windscreen during

removal, grip it from the plastic ring and

the base and remove by gently pulling and

twisting.

2. If desired, adhere the supplied velcro strips

around the microphone grille, approximately

one inch from the base of the grille (as

shown) to hold new windscreen in place.

3. Install the A7WS windscreen by stretching

over the velcro strips, then squeezing at

the base of the windscreen to adhere to the

velcro. No velcro strip inside the windscreen

is needed, as the windscreen itself adheres

to the velcro. To remove, grip at the base of

the windscreen and pull while twisting.

SPECIFICATIONS

velcro strip

Type

Dynamic (moving coil)

Frequency Response

50 to 20,000 Hz

Polar Pattern

Cardioid

Output Impedance

EIA rated at 150Ω (150Ω actual)

Sensitivity

(at 1 kHz, open circuit

voltage)

−59 dBV/Pa (1.12 mV)

1 Pascal=94 dB SPL

Hum Pickup

(typical, at 60 Hz, equiva-

lent SPL/mOe)

11 dB

Polarity

Positive pressure on diaphragm produces positive

voltage on pin 2 with respect to pin 3

Weight

Net: 0.764 kg (1.69 lbs)

Case

Dark gray enamel aluminum and steel case with

dark gray foam windscreen.

CERTIFICATION

Eligible to bear CE Marking. Conforms to European EMC Directive 2004/108/EC.

Meets Harmonized Standards EN55103-1:1996 and EN55103-2:1996, for residen-

tial (E1) and light industrial (E2) environments.
The Declaration of Conformity can be obtained from:

Authorized European representative:

Shure Europe GmbH

Headquarters Europe, Middle East & Africa

Department EMEA Approval

Wannenacker Str. 28

D-74078 Heilbronn, Germany

Phone: +49 7131 72 14 0

Fax: +49 7131 72 14 14

E-Mail: [email protected]

The output level of the SM7B is -59dBV/Pa. For typical speech applications, three

inches from the grille, the SM7B requires at least +60 dB of gain at the microphone

preamp. Many modern microphone preamps, which are designed for the “hot” out-

put level of condenser microphones, provide only 40 to 50 dB of gain.