Shure SM57 User manual

Model SM57 User Guide
Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
27A2903 (RA)
E1998, Shure Brothers Incorporated Printed in U.S.A.
MODEL SM57
UNIDIRECTIONAL DYNAMIC MICROPHONE
TheShureSM57unidirectionaldynamicmicrophoneisexcep-
tional for musical instrument pickup or for vocals. With its bright,
clean sound and carefully contoured presence rise, the SM57 is
ideal for live sound reinforcement and recording. It has an ex-
tremely effective cardioid pickup pattern which isolates the main
sound source while minimizing background noise. In the studio,
it is excellent for recording drums, guitar, and woodwinds. For
musicalinstrumentsorvocals, theSM57 isaconsistent choice
of professional performers.
Features
• Frequency response tailored for drums, guitars, and vocals
• Uniform cardioid pickup pattern isolates the main sound
source while reducing background noise
• Pneumatic shock-mount system cuts down handling noise
• Extremely durable under the heaviest use
• Supplied break-resistant swivel adapter that rotates 180 °
• Legendary Shure quality, ruggedness, and reliability
STAGE MONITOR & P.A. LOUDSPEAKER PLACEMENT
Place the stage monitor directly behind the microphone
(see Figure 1). Locate the P.A. loudspeakers so that they
point away from the rear of the microphone. With the speak-
ers located in these positions, the possibility of feedback is
greatly reduced. Always check the stage setup before a per-
formance to ensure optimum placement.
180°
90°
0°
90°
STAGE
MONITOR
P.A.
LOUDSPEAKERS
MICROPHONE SOUND
SOURCE
RECOMMENDED LOUDSPEAKER PLACEMENT
FIGURE 1
APPLICATION AND PLACEMENT
Some of the most common applications and placement tech-
niques for the SM57 are listed in the following table. Remember
that microphone technique is largely a matter of personal
taste—there is no single “correct” microphone position.
APPLICA-
TION SUGGESTED MICROPHONE PLACEMENT TONE QUALITY
Tom–Toms One SM57 on each tom, or
between each pair of toms, 25
mm (1 in.) to 75 mm (3 in.)
above the heads. Aim each
mic at the top heads.
Medium attack,
balanced sound.
On double head toms, remove
the bottom head and place a
mic inside aimed at the head.
Medium attack,
balanced sound.
Snare Drum 25 mm (1 in.) to 75 mm (3 in.)
above the rim of the top head
of the drum. Aim the mic at
the head.
Most “snap”
from drumstick
impact
If desired, place a second mic
just below the rim of the bot-
tom head.
More “snare”
sound.
Guitar &
Bass
Amplifiers
25 mm (1 in.) from the speak-
er, on-axis with the speaker
cone.
Most attack,
emphasized
bass
150 mm (6 in.) to 300 mm (12
in.) away from speaker and
on-axis with speaker cone.
Medium attack,
full, balanced
sound
.5 m (18 in.) to 1 m (3 ft) back
from the speaker, on-axis with
the speaker cone.
Softer attack,
thin, reduced
bass sound.
On-axis with the edge of the
speaker cone. Thinner, re- duced bass
sound.
Brass &
Woodwinds Brass: .3 m (1 ft) to 1 m (3 ft) away, on-axis with bell of in-
strument.
Bright, clear
sound.
Woodwinds: 25 mm (1 in.) to
150 mm (6 in.) away, on-axis
with bell of instrument.
Bright, clear
sound.
Bell of the instrument 90°off-
axis from the front of the mic. Softer, mellow sound.
Vocals &
Speech 25 mm (1 in.) to 150 mm (6 in.) from the vocalist’s mouth. Rich, warm sound.
PROXIMITY EFFECT
When the sound source is less than 6 mm (1/4in.) from the
microphone, the microphone boosts bass frequencies (by 6 to
10 dB at 100 Hz), creating a warmer and richer bass sound
thanwhenfartheraway.Thiseffect,known as proximityeffect,
happens in unidirectional microphones like the SM57. The
SM57 low-frequency roll-off provides greater control, allowing
the user to take full advantage of proximity effect.

2
GENERAL RULES FOR MICROPHONE USE
1.Aim the microphone toward the desired sound source and
away from unwanted sources.
2.Locate
the microphone as close as practical to the desired
sound source.
3.Work close to the microphone for extra bass response.
4.Use only one microphone per sound source.
5.Locate multiple microphones at least three times as far
from other microphones as from the sound source.
6.Use as few microphones as practical.
7.Place
microphones away from sound reflecting surfaces.
8.Add a w indscree n w he n u sin g t h e m icrophon e o utdoors, f or
closeup speech, or vocals.
9.Avoid excessive handling to minimize mechanical noise.
SPECIFICATIONS
Type
Dynamic
Frequency Response
40 to 15,000 Hz (see Figure 2)
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TYPICAL FREQUENCY RESPONSE
FIGURE 2
Polar Pattern
Unidirectional (cardioid), rotationally symmetrical about
microphone axis, uniform with frequency (see Figure 3)
TYPICAL POLAR P ATTERNS
FIGURE 3
Output Level (at 1,000 Hz)
Open Circuit Voltage: –74.5 dB* (0.19 mV)
Power Level: –56.0 dB**
*0 dB = 1 V/ bar
**0 dB = 1 mW/10 bar
Impedance
Rated
impedance is 150  (310  actual) for connection to
microphone inputs rated low impedance.
Phasing
Positive pressure on diaphragm produces positive voltage
on pin 2 with respect to pin 3 (see Figure 4)
CARTRIDGE
CODED TERMINAL
TRANSFORMER
GREEN
YELLOW
BLUE
RED BLACK
123
INTERNAL CONNECTIONS
FIGURE 4
Connector
Three-pin professional audio connector (male XLR type)
Case
Dark gray, enamel-painted, die-cast steel with a
polycarbonate grille and a stainless steel screen.
32 mm
(1
1/4
in.)
157 mm
(6
3/16
in.)
23 mm
(29/32in.)
DIMENSIONS
FIGURE 5
Swivel Adapter
Positive-action, break-resistant, adjustable through 180°,
with standard 5/8in.-27 thread
Net Weight (without cable)
284 grams (10 oz)
Certification
Conforms
to European Union directives, eligible to bear CE
marking; meets European Union EMC Immunity Require-
ments
(EN 50 082–1, 1992); RF radiated (IEC 801–3); ESD
(IEC 801–2); EFT (IEC 801–4).
FURNISHED ACCESSORIES
Swivel Adapter A25C.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Bag 26A13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES
Windscreen A2WS.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Desk Stand S37A, S39A. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Isolation Mount A55M. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual Mount A25M, A26M. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable (7.6 m [25 ft]) C25E, C25F. . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS
Cartridge R57.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen and Grille Assembly RK244G. . . . . . . . . . . . . . . . . .
For additional service or parts information, please contact
Shure’s Service department at 1-800-516-2525. Outside the
United
States, please contact your authorized Shure Service
Center.