Shure miniature microphone User Manual
MODEL WM98 AND SM98A MINIATURE CONDENSER MICROPHONES
MICROPHONE
POLAR
MODIFIER
SWIVEL
ADAPTER
PREAMPLIFIER
GENERAL
microphones
wide frequency response from 40 to 20,000 Hz makes the microphones well suited for musical instrument pickup. The WM98 is for
wireless use; the SM98A is for wired applications. Both models feature
comin
reinforcement
20,000
instrument in an e
A98SPM Supercardioid Polar Modifier should be used. This devic e
changes
mal change of on-axis microphone frequency response. With the
A98SPM the 98 becomes the smallest multi-pattern microphone
available, eliminating the need for costly multiple capsules. The
A98SPM is supplied with the SM98A; it is an optional acc ess ory for
the
with
as well as brass, reed, wind, string, and keyboard instruments . The
98 ca
ter using the supplied cable; other transmitters must be checked for
proper pin configuration, condenser mic rophone power supply, and
connector
M
Shure
The
When still stronger rejection of off-axis pickup is required, the
A very high maximum sound pressure level allows use of the 98
The
odels WM9
w
the 9
8 m
icrophon
c
ardioi
d p
g from the r
a
Hz, the m
the p
W
M98.
all a
cousti
n also be used with a
W
M98 ca
t
ype.
8 and S
ith
a u
nidirectiona
e e
ola
r r
espons
ear
, p
ermittin
pplications
icrophone ca
nsembl
icku
p p
atter
c i
nstrument
n b
e c
onnecte
M98
A are m
l (
cardioid
lement.
e of the 9
g h
ighe
. With its true c
e o
r o
n f
rom cardioi
s i
ncludin
mplifie
r gain b
n o
fte
n b
rchestra.
g drum kits and o
d g
uitars and keyboards.
d d
irectl
iniatur
) p
icku
8 d
iscriminate
efor
ardioi
d t
o a S
o s
d p
upercardioi
hur
e used for p
y t
e e
p p
e f
atter
icku
e w
lectre
attern
s a
gains
eedbac
n e
p o
the
r p
ireles
t c
ondenser
. A s
mooth
t s
ounds
k i
n s
xtendin
f a p
articular
d with m
ercussion
s t
ransmit-
ound
g t
ini-
Shure
Brothers Incorporated
222 Hartrey A
venue
Evanston IL 60202-3696 U.S.A.
Models WM98 and SM98A User’s Guide
The WM9
for
m
with miniature 3– and 4–pin connectors (Switchcraft TA3 and TA4
types), and an acoustic foam winds creen to minimize wind noise in
outdoor
The
ered
included
alone, and a windscreen for use with the A98SPM, a shock-mount
swivel
“Tini Q–G” connectors.
The
switch-selectable
instruments. The Low-Cut pos ition is also useful to filter out low-frequency noise from such sources as wind nois e or air conditioner or
heater
tom
s
ment.
Optiona
and
S
• A98MK
ing
• A98KCS
cially
strument.
Microphone
o
• Smooth, wide frequency response for accurate sound repro-
duction
• Symmetrical
• Very
• V
• Low susceptibility to RFI, electrostatic and electromagnetic
hum
• Smallest
for
•
Rugged construction for outstanding reliability
• Cable
or
•
Usable over very wide range of temperature and humidity
• Supplied
on
•
Optional accessories to increase microphone versatility
8 i
s s
upplie
d w
ith
a v
ersatil
e s
ountin
g o
n a s
tandar
d 5
/8”–27 thread
a
pplications an
S
hur
e I
p
reamplifier
a
uppl
M98A
ery low distortion and high output clipping level
preamplifier (SM98A)
LP-1, low-distortio
a
ccessorie
dapte
r and a d
I
LP-
1 p
reamplifie
f
ans
. The I
y from s
l a
ccessories
, are a
Drum Kit, with gooseneck holder and clamp for mount
the microphone directly on most drums.
Horn Mount, a shock-mounted clamp designed espe
for securely mounting the 98 on a horn, wind, or reed in
Features:
across the entire audio spectrum
high sound pressure level capability
multi-pattern microphone available – without the need
multiple capsules
detachable at both microphone and transmitter (WM98)
with unique shock-mount swivel adapter for mounting
conventional microphone stands or goosenecks
d from a
, i
s f
urnishe
s are: a w
etachabl
r p
Flat o
r L
LP-
1 can be p
oun
d r
, d
vailable
cardioid pattern, uniform
ir–movin
n h
d with the S
indscree
e 4.6 m (15 ft) c
rovide
s s
ow-Cu
t r
owere
einforcement
esigne
d e
. T
hes
e i
hock–moun
, a 1.12 m (
g e
quipment.
igh-clipping-level
M98
A m
n for use with the m
witchabl
espons
d b
, r
ecording
xclusivel
nclud
icrophone
abl
e gain o
e t
o suit p
y any 11– t
, o
y for use with the W
e the f
ollowing:
with frequency to 20 kHz
e with S
o 5
r b
t s
wive
l a
3 f
t 8 in.) c
, p
hantom–pow-
. A
icrophone
witchcraft
f 0 o
r +10 d
icku
p for v
2–vol
t dc p
roadcas
dapter
able
dditional
B a
nd
arious
han-
t e
quip-
M98
-
-
-
TYPICAL FREQUENCY RESPONSE
1997 Shure Brothers Incorporated
27A2738
(QF)
FIGURE 1
TYPICAL FREQUENCY RESPONSE – SM98A WITH
A98SPM POLAR MODIFIER INSTALLED
FIGURE 2
Printed in U.S.A.
SPECIFICATIONS
g( )
Type
Frequency Response (Figs. 1–2)
Polar Pattern (Figs. 3–4) Unidirectional (cardioid) or supercardioid with A98SPM Supercardioid Polar Modifier
Output Impedance
Output Level
(0 dB = 1 volt per
Output
Clipping Level
(at 1,000 Hz)
Total
Harmonic Distortion
Maximum SPL
Dynamic Range (maximum SPL to
A-weighted
Output Noise (equivalent SPL)
Hum Pickup (electromagnetic)
Signal-to-Noise Ratio
Response Shaping
Phasing Positive
Recommended
Current Drain
Environmental Conditions Operating T
Cable Microphone
Case Microphone:
Net W
eight
Certifications Conforms to European Union directives,
bar)
noise level)
Operating V
oltage
WM98 MICROPHONE (with standard test circuit–Figure
1200
Open
–3 dBV (0.70 V)
Less than 1% (134 dB SPL at 1,000 Hz) Less than 1% (132 dB SPL at 1,000 Hz)
145 dB
11
1 dB
N/A
60 dB at 94 dB SPL (IEC 651) 60 dB at 94 dB SPL (IEC 651)
N/A Flat/Lo
duces positive voltage on pins 3 and 4 with respect
1.5 to 6 V (pin 2 to pins 3 and 4)
60 to 180
ductor,
nectors (Switchcraf
finish
Microphone: 12 g (0.4 oz) Microphone: 12 g (0.4 oz)
to
bear CE marking; meets European Union EMC
Immunity Requirements (EN 50 082–1, 1992);
RF
(IEC
6)
Ω
Circuit Voltage –74 dB (0.2 mV).
pressure on
to pin 1 (ground)
A
: 1
s
hielde
Brass construction with matte
and black stainless-steel-mesh grille
radiated (IEC 801–3); ESD
801–4).
. . . . . .
34 dB typical, A-weighted
40 dB typical, C-weighted
37 dB, weighted per DIN 45 405
microphone diaphragm pro
Storage
Relative
.12
m (
d with m
emperatures –18o to 57oC (0o to 135
T
emperatures –29o to 74oC (–20o to 168
Humidity
3 f
t 8 i
n.)
, a
ttached
e 3
– and 4
i Q–G” t
ype)
(IEC 801–2); EFT
t “
iniatur
Tin
.
. . . . . . . . . . . . . . . . . . . . . .
Condenser (electret bias)
40 to 20,000 Hz
. . . . . . . . . . . . . . . . . . . .
, t
wo-con-
–pi
eligible
SM98A MICROPHONE
Rated at 150 Ω (90 Ω actual)
Recommended minimum load impedance:
(May
be used with loads as low as 150 Ω with reduced
ping level)
Open Circuit V
800 Ω Load, ILP–1 gain = 0 dB
800 Ω
150 Ω
150 Ω Load ILP–1 gain = +10 dB
800
Ω
800
Ω
150 Ω
150 Ω
121 dB (800
–5 dB equivalent SPL in a 1 mOe field (60 Hz)
-
Positive
tive voltage on pin 2 relative to pin 3 of preamplifier output
connector
11 to 52 Vdc Phantom; operational down to 9 Vdc with reduced
2.2 mA current drain at 52 Vdc, 1.8 mA at 1
Microphone: 4.6
ture
n c
on-
black
3
–pi
en
d t
o mate with m
Microphone: Brass construction with matte black finish and
black
stainless-steel-mesh grille
Amplifier: Steel construction with matte black enamel finish
Amplifier: 170 g (6 oz)
oltage
.
Load, ILP–1 gain = +10 dB
Load ILP–1 gain = 0 dB
Load,
ILP–1 gain at 0 dB
Load,
ILP–1 gain at +10 dB
Load, ILP–1 gain at 0 dB
Load, ILP–1 gain at +10 dB
Ω
load,
ILP–1 gain at 0 dB)
Cut Preamp switch; Lo Cut: 12 dB rollof
pressure on microphone diaphragm produces posi
clipping level
o
F)
0 to 95% (operating or storage)
m (15 ft), t
n f
emal
e c
onnecto
icrophon
. . . . . .
wo-conductor
r (
Switchcraf
e o
–80 dB (0.10 mV)
.
. . . . . . . . . . .
.
. . . . . .
–13 dBV (0.22 V)
.
. . . . .
.
. . . . . . . . . . . . . . .
.
. . . . . . . . . . . . .
.
. . . . . . . . . . . . . . .
.
. . . . . . . . . . . . .
utpu
t and p
. . . . . .
0 dBV (1.0 V)
–7 dBV (0.45 V)
–21 dBV (0.09 V)
f below 80 Hz
1 Vdc
o
F)
, s
hielde
d with m
t T
A4F type
reamplifie
155 dB
138 dB
145 dB
127 dB
) o
n e
r i
nput
800
clip
inia-
Ω.
-
-
ach
TYPICAL POLAR PATTERNS
FIGURE 3
TYPICAL POLAR PA
TTERNS – SM98A WITH A98SPM
INSTALLED
FIGURE 4
2
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