Shure SE420 User manual

SE420
Sound Isolating™ Earphones
Shure Sound Isolating™
Earphones with
Dual TruAcoustic
MicroSpeakers deliver
a detailed soundstage
free from outside noise.
A separate tweeter
and woofer ensure
premium audio clarity.
The powerful and stylish
Shure SE420 includes a
carrying case, modular
cables, interchangeable
Sound Isolating™ sleeves
and adapters—providing a
comfortable, personalized t
and maximum portability.
©2006, Shure Incorporated
27EN3235 (Rev. 1) Printed in U.S.A.

WEARING THE EARPHONES
Two suggested methods for wearing the earphones are illustrated below.
Tighten the cable and take up slack by raising the cable sleeve.
Over the ear
in back
Over the ear
in front

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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.
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
Warning: Do not push the earphone sleeve beyond the ear canal opening.
Nozzle Barb Sleeve Over Barb

REMOVING THE EARPHONES
Grasp the body of earphone and gently twist to remove.
Note: Do not pull on cable to remove earphone.

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CHOOSING AN EARPHONE SLEEVE
Your earphones come with a selection of sleeves. Make sure the
sleeve you choose is easy to insert into your ear, ts comfortably,
and is easy to remove from your ear.
Soft Foam Sleeves
When using the foam sleeves, compress the sleeve
between your ngers 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.
Soft Flex Sleeves
In small, medium, and large sizes. Made from pliable
rubber.
Triple-Flange Sleeves
If desired, the sleeve stem may be shortened. Use sharp
scissors to carefully trim the stem to the desired length.
Note: Carefully slide sleeve over earphone nozzle barb for a secure grip.

CLEANING THE EARPHONE NOZZLE
If you notice a change in sound quality, remove the sleeve and check
the nozzle of your earphone. If nozzle is blocked, clear obstruction
by using wire loop end of cleaning tool.
Nozzle
Wax Removal Loop
When cleaning, do not force any object through the earphone
nozzle! This will damage the earphone sound lter.
Cleaning Tool
Nozzle Barb

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FURNISHED ACCESSORIES
• Volume control
• Premium Carrying Case
• Fit Kit: contains soft foam, soft ex and triple ange sleeves
plus cleaning tool
• Stereo Extension Cable - 3 ft. (91cm)
• Stereo Adapter Plug - 1/4 in. (6.5mm) to 1/8 in. (3.5mm)
• Airline Adapter
ACCESSORIES
For information about earphone accessories (listed below) and
other Shure products visit: www.shure.com
• Replacement Sleeves • Extension Cable
• Carrying Case • Push To Hear (PTH Module)
• Adapters • Volume Control

TECHNICAL SPECIFICATIONS
Transducer type Dual balanced-armature drivers
Sensitivity (at 1khz) 109 dB SPL/mW
Impedance (at 1kHz) 22 W
DC Resistance 18 W
Frequency Range 20Hz - 19kHz
Input connector 3.5mm (1/8 in.) gold-plated stereo plug
Net weight 29.5 g (1.04 oz)
Operational temperature -18° C to 57° C (0° F to 135° F)
Storage temperature -29° C to 74° C (-20° F to 165° F)

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CUSTOM EARPHONE SLEEVES
Those who use earphones regularly for extended periods of time
often nd custom-t molded sleeves offer the best comfort and
sound isolation.
Ask a Hearing Health Care Professional about creating custom
molded sleeves for your earphones. For more information, contact:
Sensaphonics Hearing Conservation Toll Free: [phone]
660 N. Milwaukee Avenue In Chicago: [phone]
Chicago, IL 60622
e-mail: [email protected]
www.sensaphonics.com

MAINTENANCE
Careful maintenance ensures a tight seal between the sleeve and nozzle,
improving sound quality and product safety.
Keep the earphones and sleeves as clean and dry as possible.

To clean sleeves, remove them from earphones, gently rinse in
warm water and air dry. Foam sleeves require a longer drying
time. Inspect for damage and replace if necessary.
Ear sleeves must be completely dry before reusing.
Wipe the earphones and sleeves with mild antiseptic to avoid
infections. Do not use alcohol-based disinfectants.
Do not expose earphones to extreme temperatures.
Replace the sleeves if they do not t properly.