Shure SM7B User manual

GENERAL
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 excel-
lent shielding against electromagnetic hum generated by com-
puter monitors, neon lights, and other electrical devices. The
SM7B has been updated from earlier models with an improved
bracket design that offers greater stability. In addition to its
standard windscreen, it also includes the A7WS windscreen
for close-talk applications.
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 symmet-
rical about axis, to provide maximum rejection and mini-
mum coloration of off-axis sound
• Rugged construction and excellent cartridge protection for
outstanding reliability
APPLICATIONS
The exceptional performance and unique features of the
SM7B make it the outstanding choice for such applications as:
• Recording Studio—Instrumental and Vocal
• Location Recording
• Motion Picture and Television Scoring
• Television Talk Shows and News Desks
• Radio Announcing and Production
• Narration
WINDSCREEN
Use the standard windscreen for general voice and instru-
mental applications. Use the supplied A7WS windscreen for
close-talk applications, such as voice overs or radio an-
nouncements, 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 mi-
crophone grille, approximately one inch from the base of
the grille (as shown above) 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 ad-
here 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.
VELCRO STRIP
MOUNTING INSTRUCTIONS
The SM7B can be mounted on a microphone stand or hung
from a boom. It is shipped in the boom mounting configuration
(see Figure 1). To set up the SM7B in the microphone stand
mounting configuration (see Figure 2), proceed as follows:
1. Remove tightening nuts on the sides (see Figure 7).
2. Remove the fitted washers, the lock washers, the outer
brass washers, and the brass sleeves.
3. Slide the bracket off the microphone. Be careful not to lose
the washers still on the microphone.
4. Invert and rotate the bracket. Slide it back onto the bolts
over the brass and plastic washers still on the microphone.
The bracket should fit so the XLR connector faces the rear
of the microphone, and the Shure logo on the back of the
microphone is right-side up.
5. Replace the brass sleeves. Be sure they are seated proper-
ly within the inner washers.
6. Replace the outer brass washers, the lock washers and the
fitted washers.
7. Replace the tightening nuts and tighten the microphone at
the desired angle.
NOTE: If the tightening nuts do not hold the microphone
in position, one or both of the brass sleeves may not be
properly seated within all the washers.
Model SM7B User Guide
27B3128 (Rev. 2)
©2005, Shure Incorporated Printed in U.S.A.

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RIGHT SIDE VIEW REAR VIEW
BOOM MOUNTING CONFIGURATION
FIGURE 1
RIGHT SIDE VIEW REAR VIEW
XLR CONNECTOR
MICROPHONE STAND MOUNTING CONFIGURATION
FIGURE 2
RESPONSE SELECTOR SWITCH COVER
Use the supplied cover plate to prevent accidental change
of response setting.
SPECIFICATIONS
Type
Dynamic
Frequency Response
50 to 20,000 Hz (see Figure 3)
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FLAT RESPONSE
BASS ROLLOFF
PRESENCE BOOST
TYPICAL FREQUENCY RESPONSE
FIGURE 3
Polar Pattern
Cardioid (unidirectional). See Figure 4.
TYPICAL POLAR PATTERNS
FIGURE 4
Impedance
Microphone impedance rating is 150 Ω(150 Ωactual) for
connection to microphone inputs rated at 19 to 300 ohms.
Polarity
Positive pressure on diaphragm produces positive volt-
age on pin 2 relative to pin 3.
Output Level (at 1,000 Hz)
Open Circuit Voltage* – 59.0 dB (1.12 mV)
. . . . . . . . . .
*0 dB = 1 volt per Pascal
Electromagnetic Hum Sensitivity
(Typical, Equivalent SPL/milliOersted)
60 Hz: 11 dB
500 Hz: 24 dB
1 kHz: 33 dB
Switches
Bass rolloff and mid-range emphasis: Slotted response
selector switches. See Figure 3 for bass rolloff and
mid-range emphasis (presence boost) response.
Cartridge Shock Mount
Internal air-suspension shock and vibration isolator.
Microphone Connector
Three-pin professional audio (XLR)
Swivel Assembly
Integrated, captive nut for ease of attachment to stand, fits
5/8in.–27 thread.
Case
Dark gray enamel aluminum and steel case with dark gray
foam windscreen.
Dimensions
See Figure 5.
95 mm
(3.75 in.)
189.7 mm
(7.469 in.)
25.4 mm
(1.0 in.) 48 mm
(1.890 in.)
117 mm
(4.594 in.)
96 mm
(3.775 in.)
63.5 mm
(2.500 in.)
OVERALL DIMENSIONS
FIGURE 5
Net Weight
765.4 grams (1 lb, 11 oz)
VOICE
COIL CODED
TERMINAL
BLACK
240 mH
11 mH
HUM BUCKING COIL
.22 µF
x 35 V
YELLOW
GREEN
WHITE
BLACK
CLEAR
CASE
GROUND
GREEN
SHIELD
SWITCH PLATE
(VIEWED FROM
TERMINAL SIDE)
BASS ROLLOFF SWITCH
PRESENCE BOOST SWITCH
1
23
INTERNAL CONNECTIONS
FIGURE 6

3
Certification
Eligible to bear CE marking. Conforms to European EMC
Directive 89/336/EEC. Meets applicable tests and perfor-
mance criteria in European Standard EN 55103 (1996)
parts 1 and 2, for residential (E1) and light industrial (E2)
environments.
FURNISHED ACCESSORY
Switch Cover Plate RPM602
. . . . . . . . . . . . . . . . . . . . . . . . . .
Close-Talk Windscreen A7WS. . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES
Desk Stand S37A, S39A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable and Plug Assembly (7.6m – 25 ft) C25F. . . . . . . . . . . .
REPLACEMENT PART
Cartridge RPM106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windscreen RK345. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nut/Washers RPM604. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ARCHITECTS’ SPECIFICATIONS
The microphone shall be a moving coil (dynamic) type with
a frequency response of 50 to 20,000 Hz. The unit shall have
a cardioid polar characteristic. The cancellation at the sides
shall be approximately 6 dB and the cancellation at the rear
shall be 15 to 20 dB. The microphone shall be low impedance
with a rated impedance of 150 ohms for connection to
microphone inputs rated at 19 to 300 ohms. The microphone
output shall be –57.0 dB where 0 dB = 1 milliwatt per Pascal.
The microphone shall have two switches for controlling the
frequency response. The first switch is a Bass Rolloff selector
switch. One position of this switch provides a flat low frequency
response and the second position provides a gradual low
frequency rolloff. The second switch is the Mid-Range
Emphasis (presence boost) switch. One position of this switch
provides a flat mid-range frequency response and the second
position raises the level of the mid-range frequency response.
The microphone shall be equipped with an integral swivel
assembly suitable for mounting on a stand with a 5/8 in-27
thread.
The overall dimensions shall be 189.7 mm (7.469 in.) in
length, 148 mm (5.812 in.) in height, and 96 mm (3.775 in.) in
width. The weight of the microphone shall be 765.4 g (1 lb.,
11 oz.)
The microphone shall be the Shure Model SM7B or
equivalent.
PLASTIC
WASHER
BRASS
WASHERS
MOUNTING
BRACKET
BRASS
SLEEVE
LOCK
WASHER
FITTED
WASHER
TIGHTENING
NUT
MOUNTING ASSEMBLY – EXPLODED VIEW
FIGURE 7

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