DYNAMIC LAVALIER MICROPHONE
GENERAL
The Shure Model SM11 is a miniature dynamic lavalier
microphone designed for use in television broadcasting (on
camera), for sound reinforcement, in certain radio and motion picture applications, and similar uses where a small,
professional-quality , microphone is required. The SM1 1 has
an omnidirectional pickup pattern, and its frequency response is optimized for lavalier use. The microphone is supplied with a tie clasp assembly , tie tack assembly , connector
belt clip, and zippered carrying/storage bag. An optional kit
for mounting the SM11 on various musical instruments is
available as Shure Model RK279.
Features
Frequency response optimized for lavalier use. Acousti-
•
cally matches most stand- or desk-mounted microphones
•
Small and lightweight for unobtrusive, virtually unseen
operation
•
Smooth exterior and recessed grille screen minimize
clothing noise
•
Rugged aluminum case construction
•
Extremely flexible long-life cable
•
Two mounting options–tie clasp or tie tack
•
Convenient, secure belt clip attaches connector to belt
or clothing
SPECIFICATIONS
Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
Model SM11 User Guide
TYPICAL FREQUENCY RESPONSE
FIGURE 1
Polar Pattern
Omnidirectional
Impedance
Microphone rating impedance is 150 ohms (200 ohms
actual) for connection to microphone inputs rated at
19 to 300 ohms
Output Level (at 1,000 Hz)
Open Circuit Voltage .......... –85 dB (0.06 mV)
(0 dB = 1 volt per microbar)
Power Level ........................... –64 dB
(0 dB = 1 milliwatt per 10 microbars)
Phasing
Positive pressure on diaphragm produces positive
voltage on pin 2 with respect to pin 3
Hum Pickup
35.3 dB equivalent SPL in a 1 millioersted field
Cable
Non–detachable, 1.2m (48 in.), two-conductor,
shielded, plastic-covered
Connector
Professional three-pin audio connector designed to
mate with Cannon XL series, Switchcraft A3 (Q.G.)
series or equivalent connectors
Case
Aluminum with gray enamel finish
Dimensions
See Figure 2
Type
Dynamic
Frequency Response
50 to 15,000 Hz (see Figure 1)
E1997, Shure Brothers Incorporated
27A2192 (QH)
OVERALL DIMENSIONS
FIGURE 2
Printed in U.S.A.
Net Weight
7.8 grams (0.28 oz), less cable and connector
Certification
Conforms to European Union directives, eligible to
bear CE marking; meets European Union EMC Immunity Requirements (EN 50 082–1, 1992); RF radiated
(IEC 801–3); ESD (IEC 801–2); EFT (IEC 801–4).
CARTRIDGE CONNECTOR
RED CODED TERMINAL
YELLOW
SHIELD
RED
BLACK
2
1
3
INTERNAL CONNECTIONS
FIGURE 3
INSTALLATION
CABLE ANCHORING
FIGURE 4
Tie Clasp Assembly
Insert the SM11 in the tie clasp and anchor the cable
as shown in Figure 4. Affix the clasp to a tie, shirt, or
blouse. Note that the microphone can be swiveled 360_
in its holder for left, right, or vertical (“pen clip”) use.
Tie Tack Assembly
Remove the clutch from the tie tack assembly and insert
the tie tack holder in the tie (or through the tie and shirt if desired). Affix the clutch to the pin of the tie tack holder . Insert
the SM11 in the tie tack holder.
Connector and Belt Clip
With the SM11 installed in one of the assemblies described above, insert the connector in the connector belt clip
and fasten the belt clip to the user’s belt, waistband or other
clothing. Excess microphone cable can be inserted in the
user’s pocket or tucked into the waistband.
ARCHITECTS’ SPECIFICA TIONS
The microphone shall be a moving–coil (dynamic) type
with a frequency response of 50 to 15,000 Hz. The microphone shall have an omnidirectional polar characteristic.
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 –64 dB
where 0 dB = 1 milliwatt per 10 microbars.
The microphone shall be a lavalier type, and shall be provided with a 1.2m (48 in.) non–detachable, two–conductor ,
shielded cable with a professional, three–pin audio connector designed to mate with Cannon XL series, Switchcraft A3
(Q.G.) series or equivalent connectors. The microphone
shall also be provided with a tie clasp assembly , tie tack assembly, connector belt clip, and carrying/storage bag.
The overall dimensions of the microphone shall be 33.5
mm (1 – 5/16 in.) in length and 14.7 mm (9/16 in.) in diameter.
The microphone shall be the Shure Model SM11 or
equivalent.
ACCESSORIES AND REPLACEMENT PARTS
The following furnished accessories and replacement
parts can be ordered through your Authorized Shure Professional Products Dealer or from Shure Brothers Inc.
Tie Clasp Assembly RK203TC. . . . . . . . . . . . . . . . . . . . . . .
Tie Tack Assembly 90A2384. . . . . . . . . . . . . . . . . . . . . . . . .
Connector Belt Clip RK200BC. . . . . . . . . . . . . . . . . . . . . . . .
Carrying/Storage Bag 26A13. . . . . . . . . . . . . . . . . . . . . . . . .
Cartridge R99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable C91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Mounting Kit RK279. . . . . . . . . . . . . . . . . . . . . . .
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.
The Sound of Professionals...Worldwide
Shure Brothers Incorporated
222 Hartrey Avenue, Evanston IL 60202-3696
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