Shure SM61 User Guide
THE SOUND OF THE PROFESSIONALS
®
PROFESSIONAL PRODUCTS
GENERAL
The superb physical and acoustic design of the
Model SM61 Professional Microphone makes it an
outstanding choice for applications that range from
remote broadcast interviews or sports coverage to
onstage and television hand-held use. The SM61
microphone is virtually insensitive to wind, pop, and
handling noises. Because of the unique VERAFLEX
®
grille, the microphone is unparalleled in ruggedness.
The unusual combination of light weight and exceptionally low handling noise in the SM61 is achieved by a
special built-in mechanical isolation system between
microphone cartridge and case. Breath noise and popping are so effectively controlled by the integral wind
and pop filter that the need for add-on windscreens is
eliminated in all but the most adverse conditions. The
VERAFLEX grille protects the microphone against
damage from a drop of up to 2 meters (6 feet), resists
dents, and is impervious to rust, corrosion, and
moisture.
Microphone Features:
n Very low sensitivity to handling and stand noise
n
Built-in breath and pop filter eliminates pop and
minimizes wind noise
n
VERAFLEX grille resists damage from drops, dentproof and immune to rust, corrosion, and moisture
n Compact, handsome styling - looks good on
stage, on screen, on television
n Durable - endures rough usage in the field or
studio
n
Excellent balance and feel for hand-held use
n
Swivel adapter provides snap-in convenience for
hand-held or stand-mounted use
VARIATIONS
Model SM61-LC: Supplied without cable.
Polar Pattern
Omnidirectional (See Figure 2)
SPECIFICATIONS
Type
Dynamic
Frequency Response
50 to 14,000 Hz (See Figure 1)
TYPICAL FREQUENCY RESPONSE
FIGURE 1
Copyright 1987, Shure Brothers Inc.
27A2157(GI)
TYPICAL POLAR PATTERNS
FIGURE 2
Impedance
Microphone rating impedance is 150 ohms (175 ohms
actual) for connection to microphone inputs rated at
19 to 300 ohms
Output Level
Open Circuit Voltage
(at 1000 Hz)
. . . . . . . . . . -81.5 dB* (.08 mV)
Power Level . . . . . . . . . . . . . . . . . . -60.5 dB**
*0 dB = 1 volt per microbar
**0 dB = 1 milliwatt per 10 microbars
Hum Pickup
(typical)
31 dB equivalent SPL in a 1 millioersted field
Phasing
Positive pressure on diaphragm produces positive
voltage on pin 2 with respect to pin 3 (See Figure 3)
U.S. Patent 3,653,625
Printed in U.S.A.
INTERNAL CONNECTIONS
FIGURE 3
Case
Aluminum and VERAFLEX
Finish
®
Matte metallic
Swivel Adapter
Snap-in, positive-action, adjustable from 0° to 90°,
with standard 5/8”-27 thread
Dimensions
See Figure 4
ARCHITECT’S SPECIFICATIONS
The microphone shall be a moving coil (dynamic) type
with a frequency response of 50 to 14,000 Hz. The unit
shall have an omnidirectional horizontal polar
characteristic. The microphone shall have a rating impedance of 150 ohms for connection to microphone inputs rated at 19 to 300 ohms.
The microphone output shall be -60.5 dB where
0 dB = 1 milliwatt per 10 microbars.
The microphone shall be provided with a swivel
adapter adjustable through 90° from vertical to horizontal.
The overall dimensions shall be 181 mm (7-1/8 in.) in
length and 40 mm (1-17/32 in.) in diameter.
The microphone swivel adapter shall permit the
microphone to be placed into and removed from the
adapter with a smooth “snap-in” movement. The
adapter will be equipped with 5/8”-27 thread for mounting on a standard microphone stand fitting.
The microphone shall be the Shure Model SM61 or
equivalent.
FURNISHED ACCESSORY
Swivel Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A57D
FIGURE 4
Net Weight (less cable)
147 grams (5.2 ounces)
Packaged Weight
SM61-LC: 404 grams (14 oz)
OPTIONAL ACCESSORIES
Desk Stand . . . . . . . . . . . . . . . . . . . . . . . . . .
S37A, S39A
Isolation Mount . . . . . . . . . . . . . . . . . . . . . . . .
TRIPLE-FLEX® Cable and Plug (7.6m - 25 ft)
. . . . .
Windscreen ...............................
REPLACEMENT PARTS
Cartridge
Grille Assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . RK164G
A53M
C25F
A61WS
R61
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