ETYMOTIC ER-4 MicroPro Earphones User Manual
- June 13, 2024
- ETYMOTIC
Table of Contents
User Manual
INTRODUCTION
ER·4 MicroPro earphones, the first noise-isolating high-fidelity in-ear
earphones, used high performance, balanced armature drivers. These high-
definition transducers combine flat frequency response with passive noise
isolation. Noise reduction with ER·4 earphones occurs naturally when the
eartips are sealed in the ear canals.
Included with the earphones is a Channel-Matching Compliance Graph showing a
frequency response curve for each custom-tuned, balanced armature driver.
An assortment of ACCU·FitTM eartips is provided in this package.The
tripleflange eartips reduce sound an average of 35 dB, which is approximately
98% noise reduction.The foam eartips provide slightly more (42 dB) sound
reduction. Lowering outside sound allows you to hear the full dynamic range of
the recording without having to play it at unsafe levels.
The ER·4 MicroPro series earphones produce the highest sound quality of any
high-definition earphones on the market today.We know you will enjoy them.
Etymotic Research
You know your music. Etymotic know your ears.
CAUTION
In rare instances an eartip may come off in the ear canal when removing the
earphone. If this should occur and the eartip cannot be easily removed, it is
recommended that you promptly contact an audiologist or other medical
professional. A professional can use blunt tweezers to remove the eartip.
Consult an audiologist or physician if you have excessive ear wax, difficulty
inserting the eartips, or discomfort after prolonged use.
Etymotic earphones exclude most external sounds. It is unsafe to use in-ear
earphones while operating a motorized vehicle, operating machinery, bicycling
or jogging, because you may not be alerted to potential danger.
Do not listen at excessively loud levels. Research confirms that earphones
that seal the ear canal allow listeners to listen at safer levels. Noise-
induced hearing loss is a function of exposure time, the average sound level
and the peak output of very loud sounds. A sealed eartip and lower listening
levels allow for longer periods of safe listening.
IN THE BOX
A. ER•4PT earphones
B. 5 ft cord with 3.5 mm stereo plug
C. 1⁄4″ stereo phone adapter
D. Assortment of ACCU•Fit™ eartips
E. Filter changing tool and replacement ACCU•Filter™ wax filters| F. Shirt
clip
G. Cable to convert ER-4P to ER-4S response
H. Travel pouch
I. Storage box
J. Channel-matching compliance graph
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Accessories are available at www.etymotic.com
SELECTING AN EARTIP
The eartips that are most comfortable are the best choice, but they should seal well in the ears for best noise isolation and sound quality.
When changing eartips make sure the eartip fits securely on the stem of the earphone.
CLEANING AND REPLACING EARTIPS
Over time eartips may lose their elasticity. For best performance and retention, replace 3-flange eartips every 60-90 days. Replace foam and glider eartips frequently.
To clean 3-flange eartips:
- Remove the eartip from the earphone.
- Clean with water and mild soap.
- Dry the eartip before placing it back on the earphone.
PROPER INSERTION
Important: Sound quality, full bass response and noise isolation all depend on a good eartip seal in the ear canal. See a video demonstration at www.etymotic.com
- Carefully insert the earphone while pulling up and out on the back of the ear.
- Twist the earphone up into the ear canal while inserting, until outside noise is blocked out.
- 3-flange eartips: Moistening eases insertion.
- Foam eartips: Roll down or compress foam eartip before inserting. Hold the eartip in place for about 5 seconds while the foam expands to create a tight seal in the ear canal.
- Glider eartips: Simply push into ear canal.
REMOVAL
Remove earphones slowly with a twisting motion to gradually break the seal. Do not pull on the cable to remove the earphones.
CHANGING FILTERS
Etymotic earphones have special filters that smooth the frequency response and
prevent earwax from entering the earphones. An ACCU•Filter™ is located at the
end of the earphone and is visible when the eartip is removed.
If a filter becomes clogged, it should be replaced. A dirty filter will reduce
earphone output. The filter should be changed if loudness decreases or the
sound quality declines.
Note: ACCU•Filters are not reusable.
ACCU•Filter Removal
Note: Use the tool to remove the filter.
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1. Remove Eartip.| 2. Insert tool into the filter.| 3. Remove filter.
ACCU•Filter Replacement
Note: Do not use the tool to replace the filter.
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1. Insert a new filter.| 2. Press gently against a hard surface to secure
the filter in place.| 3. Re-attach eartip.
ER-4PT TO ER-4S CONVERTER CABLE
Convert your ER·4PT earphones to ER·4S earphones with this inline adapter cable. ER·4PT earphones have approximately 10 dB greater output at high frequencies and 12 dB greater output at low frequencies than ER·4S. ER·4S earphones were designed to compensate for the high frequency emphasis in all CD recordings, in order to provide accurate sound reproduction. ER·4S earphones can be used with a headphone amplifier when using low-power portable devices.
TIP: Use the adapter cable with airplane sound systems when the audio is too loud.
PROPER CARE
- Do not expose the earphones to extreme temperatures.
- Avoid dropping and strong impact.
- Leave eartips on the earphones for shock protection.
- Do not pull on the cord to remove the earphone from the audio device or the ear.
- Clean or replace eartips prior to use by others.
- For best performance and retention in the ear, replace 3-flange eartips every 60-90 days.
- Replace foam and glider eartips frequently.
WARRANTY
Etymotic Research, Inc. warrants this product against defects in material or
workmanship for a period of two years from the date of original purchase from
an authorized Etymotic distributor or reseller.
Etymotic will repair or replace the defective product at its option if
returned within the warranty period to our service facility. This warranty is
in lieu of all other warranties, expressed or implied, including, but not
limited to any implied warranty of merchantability or fitness for a particular
purpose.
ETYMOTIC RESEARCH INC.
61 Martin Lane • Elk Grove Village, IL 60007
www.etymotic.com •
888-389-6684 •
847-228-0006
ACCU•Fit and ACCU•Filters are trademarks of Etymotic Research, Inc.
ETYMOTIC, ER•4 MicroPro and ACCU•Technology are registered trademarks of
Etymotic Research, Inc.
©2013
ER004560-B
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