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SCL4

Sound Isolating Earphones

The SCL4 earphone features High-

Definition drivers with Tuned-Port 

technology for an ultra-wide frequency 

soundstage with brilliant 

highs and extended bass.  

As the ideal companion 

to any portable or home 

audio source, the SCL4 

incorporates the same 
precision components 

used by professional 

musicians to bring 

incredibly accurate sound 

with remarkable isolation.

INSERTING THE EARPHONES

If the earphone seems to be lacking in low frequency response (bass), check 
the tightness of the seal between the earphone and your ear, or try one of the 
other sleeve options. 

Warning:

 Do not push the earphone sleeve beyond the ear canal opening.

WEARING THE EARPHONES

Three popular methods for wearing the earphones are illustrated below.

CHOOSING AN EARPHONE SLEEVE

Your earphones come with a selection of sleeves. Make sure the sleeve you 
use is easy to insert into your ear, fits comfortably, and is easy to remove from 
your ear.

CLEANING THE EARPHONE NOZZLE

If the nozzle of your earphone is blocked, clean the nozzle using the supplied 
wax removal loop. 

SHURE Incorporated  http://www.shure.com

United States, Canada, Latin America, Caribbean:

5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.

Phone: 847-600-2000  U.S. Fax: 847-600-1212  Int’l Fax: 847-600-6446

Europe, Middle East, Africa:

Shure Europe GmbH, Phone: 49-7131-72140  Fax: 49-7131-721414

Asia, Pacific:

Shure Asia Limited, Phone: 852-2893-4290  Fax: 852-2893-4055

Soft Flex Sleeves

In small, medium, and large sizes. Made from pliable rubber.

Triple-Flange Sleeves

If desired, the sleeve nozzle may be shortened. Use sharp 
scissors to carefully trim the nozzle to the desired length.

Nozzle

Wax Removal Loop

Tighten the cable and take up slack by raising the cable sleeve 

.

When cleaning, do not force any object through the earphone nozzle! This will 
damage the earphone sound filter.

If necessary, the supplied replacement nozzles may be used. See the back of 
this guide for instructions on nozzle replacement.

 ©2007, Shure Incorporated
27EN3250(Rev. 1)

 Printed in U.S.A.

Over the ear
in back

Over the ear
in front

Straight down

left ear

right ear

Yellow and Black Foam Sleeves

When using the foam sleeves, compress the sleeve between 
your fingers before inserting it into the ear canal. Hold the 
earphone in place for about ten seconds while the foam 
expands and creates a tight seal. Black foams come in small, 
medium and large sizes.

Note:

 

Carefully slide sleeve over earphone nozzle barb for a secure grip

To change earphone sleeve, twist and pull sleeve to remove it from the nozzle. 
Push new sleeve onto nozzle until you feel it slide completely over barb. If any part of 
the nozzle is exposed, sleeve is not properly installed. Replace sleeves if they do not 
grip the nozzle tightly

Nozzle Barb

Sleeve Over Barb

Warning:

 The wax removal loop is only to be used to clean 

earphones. Any other use, such as using the tool to clean ears, 
could result in injury. 

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