Shure LEGENDARY PERFORMANCE SM7B Manual De Instrucciones página 3

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
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
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Fax: +49-7262-92 49 11 4
E-Mail: [email protected]
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
Type Dynamic (moving coil)
Frequency Response
50 to 20,000 Hz
Polar Pattern Cardioid
Output Impedance EIA rated at 150Ω (150Ω actual)
Sensitivity −59 dBV/Pa (1.12 mV)
(at 1 kHz, open circuit
1 Pascal=94 dB SPL
voltage)
Hum Pickup
11 dB
(typical, at 60 Hz, equiva-
lent SPL/mOe)
Polarity Positive pressure on diaphragm produces positive
voltage on pin 2 with respect to pin 3
Weight
Net: 0.764 kg (1.69 lbs)
Housing Dark gray enamel aluminum and steel case with
dark gray foam windscreen.
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.
velcro strip
3