Instruction/ maintenance manual of the product Er-4pt Etymotic
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E R • 4 P T U s e r M a n u a l.
2 AC CU•Driver ™ high performance , balanced armatur e drivers are percision matched for an accurac y response of 86% or better . Thank you for your purchase of ER•4 Micr oPro ™ earphones, the w orld’ s most accurate earphones.
I N T R O D U C T I O N ER•4 Micr oPro earphones w ere the first noise-isolating high-fidelity in-ear earphones to use AC CU•Driver ™ high performance , balanced armature drivers. These high-definition transduc ers combine flat fr equency response with passive noise isolation.
4 A B O U T E T Y M O T I C R E S E A R C H S Y S T E M I N C L U D E S • ER•4PT earphones • 5 ft c ord with 3.5 mm stereo plug • 1⁄4" stereo phone adapt er plug • Assortment of AC CU.
5 P R O P E R C A R E • Do not expose the earphones to extreme temperatures. • Av oid dropping and str ong impact. • Leave eartips on the earphones for shock protection. • Do not pull on the cor d to remove the earphone from the audio device or the ear .
S E L E C T I N G A N A C C U • F I T E A R T I P Over time , ear tips ma y lose their elasticity . For best per formance and reten tion, r eplace 3-flange ear tips ever y 3-6 months. Replace foam and glider eartips frequently . T o clean ACCU•Fit ™ 3-flange ear tips: 1.
P R O P E R I N S E R T I O N Important: Sound quality , full bass response and noise isola tion all depend on a good A CCU •Fit ™ eartip seal in the ear canal. See a video demonstration at www .etymotic.com. • Carefully inser t the earphone while pulling up and out on the back of the ear .
A C C U • F I L T E R S 8 Etymotic earphones have special A CCU•F ilter ™ wax filters tha t smooth the frequency r esponse and prevent ear wax from en tering the earphones. An AC CU•Filter is loca ted a t the end of the earphone and is visible when the eartip is removed .
9 S P E C I F I C A T I O N S Response Accuracy: 86% Noise Isolation: 35-42 dB Frequency r esponse: 20 Hz - 16 kHz Acoustic polarity: + electrical = + acoustic T ransducer type: balanced armature 1 kHz sensitivity: 108 dB SPL for a 0.2 V input (102 dB @ 0.
10 C A U T I O N In r are inst ances an ear tip ma y 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 pr omptly contact an audiologist or other medical professional.
11 W A R R A N T Y Etymotic Research w arrants this product against defects in mat erial or workmanship for a period of two years from the dat e of original pur chase from an authoriz ed Etymotic distributor or r eseller .
ET YMO TIC RESEARCH INC. 61 M a r ti n Lan e • El k Gro v e Vi ll age, I L 60 007 w w w. e t y m o t i c . c o m • 8 8 8 - 3 8 9 - 6 6 8 4 • 8 4 7 - 2 2 8 - 0 0 0 6 ER•4 MicroPr o, ACCU•T echnology, ACCU•Drive , ACCU•Fit, and AC CU•Filter are tr ademarks of Etymotic Research, Inc.
An important point after buying a device Etymotic Er-4pt (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Etymotic Er-4pt yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Etymotic Er-4pt - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Etymotic Er-4pt you will learn all the available features of the product, as well as information on its operation. The information that you get Etymotic Er-4pt will certainly help you make a decision on the purchase.
If you already are a holder of Etymotic Er-4pt, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Etymotic Er-4pt.
However, one of the most important roles played by the user manual is to help in solving problems with Etymotic Er-4pt. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Etymotic Er-4pt along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
