Shure SM48 User manual

MODELS SM48 AND SM48S
UNIDIRECTIONAL DYNAMIC MICROPHONES
Shure Models SM48 and SM48S unidirectional dynamic mi-
crophones are designed for professional sound reinforce-
ment, studio recording, and broadcasting applications. They
maintain a true cardioid pattern throughout their frequency
range, ensuring high gain before feedback and rejection of
off-axis sound. The tailored frequency response is ideal for
vocals. A presence rise brightens mid-range performance,
and a low frequency rolloff controls proximity effect.
Both models include a shock mounted cartridge, a steel
mesh grille, and an integral “pop” filter. The SM48S also in-
cludes a lockable On/Off switch.
Each microphone is supplied with an adjustable stand
adapter and a zippered carrying/storage bag. Cables are
available separately.
Features
•Cardioid pickup pattern rejects off–axis sound and
provides superior gain before feedback
•Frequency response tailored for vocals, with brightened
mid–range and bass rolloff to control proximity effect
•Shock-mounted cartridge for exceptional ruggedness
and reduced handling noise
•Built-in “pop” filter that reduces explosive breath sounds
and wind noise
•Supplied stand adapter and carrying/storage bag
•Lockable On/Off switch (SM48S only)
•Legendary Shure quality and ruggedness
Variations
SM48
SM48S (with lockable On/Off switch)
SPECIFICATIONS
Type
Dynamic
Frequency Response
55 to 14,000 Hz (see Figure 1)
Polar Pattern
Cardioid (unidirectional)—rotationally symmetrical about
microphone axis, uniform with frequency (see Figure 2)
Impedance
Microphone rating impedance is 150 Ω(270 Ωactual) for
connection to microphone inputs rated at 19 to 300 Ω
Output Level (at 1,000 Hz)
Open Circuit Voltage: * . . . . . . . – 57.5 dBV/Pa (1.3 mV)
*1 Pa = 94 dB SPL
Connector
XLR professional audio
Polarity
Positive pressure on diaphragm produces positive voltage
on pin 2 with respect to pin 3. See Figure 3.
Dimensions
See Figure 4
Net Weight
370 grams (13.1 oz)
Packaged Weight
672 grams (1 lb, 8.5 oz)
Certifications
Eligible to bear CE Marking. Conforms to European EMC
Directive 89/336/EEC. Meets applicable tests and perfor-
mance criteria in European Standard EN55103 (1996)
parts 1 and 2, for residential (E1) and light industrial (E2)
environments.
FURNISHED ACCESSORIES
Swivel Adapter A25D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carrying/Storage Bag 26A13. . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES
Windscreen A58WS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Desk Stand S37A, S39A. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Isolation Mount A55M, A55HM. . . . . . . . . . . . . . . . . . . . . .
Dual Mount A26M. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6 m Cable (25 ft) C25F. . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS
Cartridge R136. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen and Grille Assembly RK248G. . . . . . . . . . . . . . . .
Plug Assembly RK40P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On/Off Switch RK81S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOCKING THE ON/OFF SWITCH (SM48S ONLY)
To lock the On/Off switch in On position, remove the screw
from the lockplate and rotate the lockplate 180_. Then rein-
stall the screw.
For additional service or parts information, please contact
the Shure Service Department at 1-800-516-2525. Outside
the United States, please contact your authorized Shure
Service Center.
Models SM48 and SM48S User Guide
27B2699 (Rev. 5)
2003, Shure Incorporated Printed in U.S.A.

54.2 mm
(2-9/64 in.)
166 mm
(6-17/32 in.)
21.4 mm
(27/32 in.)
CARTRIDGE – CARTOUCHE – KAPSEL
CÁPSULA – CARTUCCIA CONNECTOR – PRISE – ANSCHLUßKUPPLUNG ENCHUFE – CONNETTORE
SM48
SM48S
120o
150o
150o
120o
180o
60o
90o
30o
30o
60o
90o
0
–5 dB
–10 dB
–15 dB
–20 dB
120o
150o
150o
120o
180o
60o
90o
30o
30o
60o
90o
0
–5 dB
–10 dB
–15 dB
–20 dB
250 Hz
500 Hz
1000 Hz
2500 Hz
6300 Hz
10000 Hz
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
0
+10
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
9876543298765
Hz
20000100001000
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dB
TYPICAL FREQUENCY RESPONSE
COURBE DE REPONSE TYPIQUE
TYPISCHES FREQUENZVERHALTEN
RESPUESTA DE FRECUENCIA TIPICA
TIPICA RISPOSTA IN FREQUENZA
TYPICAL POLAR PATTERNS
COURBE DE DIRECTIVITE TYPIQUES
TYPISCHE POLARCHARAKTERISTIK
PATRONES DE CAPTACION POLAR TIPICOS
TIPICI DIAGRAMMI POLARI
OVERALL DIMENSIONS – DIMENSIONS HORS TOUT
GESAMTABMESSUNGEN – DIMENSIONES TOTALES – DIMENSIONI TOTALI
FIGURE 1 – ABBILDUNG 1 – FIGURA 1 FIGURE 2 – ABBILDUNG 2 – FIGURA 2
FIGURE 3 – ABBILDUNG 3 – FIGURA 3
FIGURE 4 – ABBILDUNG 4 – FIGURA 4
CODED TERMINAL
CODÉE
GEKENNZEICHNET
CODIF
CODICE
CODED TERMINAL
CODÉE
GEKENNZEICHNET
CODIF
CODICE GREEN–VERT–GRUN–VERDE–VERDE
YELLOW–JAUNE–GELB–AMARILLO–GIALLO
INTERNAL CONNECTIONS – CONNEXIONES INTERNES
INTERNE SCHALTUNGEN – CONEXIONES INTERNAS
COLLEGIAMENTI INTERNI
GREEN–VERT–GRUN–VERDE–VERDE
YELLOW–JAUNE–GELB–AMARILLO–GIALLO
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