Shure E4C-N-E Merkblatt

Replace the nozzle if it becomes damaged, or if wax buildup cannot be 
removed using the wax removal loop.

Unscrew the retainer  from the earphone base .
Remove the nozzle .
Slide the retainer  over the new nozzle .
Place the nozzle on the earphone base with the flange  aligned with the 
groove in the base. Tighten the retainer .

Be careful when replacing the earphone nozzle. Parts are small and easily lost 
if dropped.

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Level attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PA235
Carrying pouch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95A2259
Fit Kit w/cleaning tool  . . . . . . . . . . . . . . . . . . . . . . . . 90XJ1371
Triple flange sleeves  . . . . . . . . . . . . . . . . . . . . . . . . . 90WX1371
Replacement nozzles  . . . . . . . . . . . . . . . . . . . . . . . . 90XF1371
Plug adapter — 1/8” to 1/4”  . . . . . . . . . . . . . . . . . . . PA234

Bag of 20 foam sleeves . . . . . . . . . . . . . . . . . . . . . . . PA750
Bag of 500 foam sleeves . . . . . . . . . . . . . . . . . . . . . . PA754
Bag of 10 clear flex sleeves:
 

small  . . . . . . . . . . . . . . . . PA756S

 

medium . . . . . . . . . . . . . . PA756M

 

large . . . . . . . . . . . . . . . . . PA756L

Bag of 10 soft flex sleeves:
 

small  . . . . . . . . . . . . . . . . PA758S

 

medium . . . . . . . . . . . . . . PA758M

 

large . . . . . . . . . . . . . . . . . PA758L

Triple-flange sleeves (2)  . . . . . . . . . . . . . . . . . . . . . . PA755
Replacement nozzles (2) . . . . . . . . . . . . . . . . . . . . . . PA4NC



Use a slow twisting motion to remove the earphones. Never pull 
on the earphone cord.



Warning: If a sleeve becomes lodged in your ear, seek skilled 
medical assistance to remove the sleeve. Damage to the ear 
may be caused by non-professionals attempting to remove the 
sleeve.



Prior to inserting the earphone, always recheck the sleeve to 
make sure it is firmly attached to the nozzle.



Turn up the volume control only far enough to hear properly.



Ringing in the ears may indicate that the volume level is too high. 
Try lowering the volume.



If you connect these earphones to an airplane’s sound system, 
listen at low levels so that loud messages from the pilot do not 
cause discomfort.



Have your ears checked by an audiologist on a regular basis. If 
you experience wax buildup, discontinue use until an audiologist 
has examined your ears.



Stop using the earphones if they are causing great discomfort or 
infection.

The PA235 provides you with volume control when you are connecting 
earphones to airplane seat outputs. It is intended only for airline use. It is not 
intended for use with other audio sources.

Connect the 1/8-inch jack on the earphones to the female jack on the 
PA235.
Turn the PA235 volume down completely (toward – ).
Connect the PA235 to the 1/8-inch audio output of the airplane seat.
Insert the earphones into your ears (see Inserting the Earphones).
Turn the volume on the PA235 up slightly (toward +).
Adjust the seat volume as follows:

If the audio is distorted, turn down the volume at the seat.
If there is no distortion, but there is background noise, turn up the 
seat volume.

Adjust the PA235 volume to a comfortable level.

NOTE: the program may be interrupted by messages from the pilot that
are much louder. To avoid discomfort, keep the overall volume just loud
enough for listening enjoyment.

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

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. 



Do not expose earphones to extreme temperatures.



Wipe the earphones and sleeves with mild antiseptic to avoid 
infections. Do not use alcohol-based disinfectants.

Eligible to bear CE marking.

Conforms to European EMC Directive 89/336/EEC.

Meets applicable tests and performance criteria in European Standard 
EN 55103 (1996) Parts 1 and 2, for residential (E1) and light industrial (E2) 
environments.

Transducer type

Single balanced armature

Sensitivity (at 1kHz)

109 dB SPL/mW

Impedance (at 1kHz)

29 Ω

Output connector

Gold-plated 3.5 mm (1/8-inch) stereo plug

Cable length

157 cm (62”)

Net weight

31 g (1.1 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)

Those who use earphones regularly for extended periods of time often find 
custom-fit 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, visit http://www.sensaphonics.com.