Etymotic Research ER-4PT Bedienungsanleitung

ER•4PT User Manual

ACCU•Driver™high performance,

balanced armature drivers are

percision matched for an accuracy

response of 86% or better.

Thank you for your purchase of ER•4 MicroPro™earphones,

the world’s most accurate earphones.

INTRODUCTION

ER•4 MicroPro earphones were the first noise-isolating high-fidelity in-ear

earphones to use ACCU•Driver™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.

ncluded with the earphones is the Channel-matching Compliance Graph

showing frequency response curves of each custom-tuned,balanced

armature driver.

An assortment of ACCU•Fit™eartips is provided in this package. The triple-

flange 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 hope you enjoy them.

Etymotic Research

You know your music. Etymotic know your ears.

ABOUT ET YMOTIC RESEARCHSYSTEM INCLUDES

• ER•4PT earphones

• 5 ft cord with 3.5 mm stereo plug

• 1⁄4" stereo phone adapter plug

• Assortment of ACCU•Fit™eartips

• Filter changing tool and replacement

ACCU•Filter™wax filters

• Shirt clip

• Airline adapter

• Travel pouch

• Storage box

• Channel-matching compliance graph

Accessories are available at www.etymotic.com.

Storage Box

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 ACCU•Fit™eartips prior to use by others.

• For best performance and retention in the ear,replace

ACCU•Fit™3-flange eartips every 3-6 months.

• Replace ACCU•Fit™foam and glider eartips frequently.

SELECTING AN ACCU•FIT EARTIP

Over time, eartips may lose their elasticity. For best performance and

retention, replace 3-flange eartips every 3-6 months. Replace foam and

glider eartips frequently.

To clean ACCU•Fit™3- lange eartips:

1. Remove the eartip from the earphone.

2. Clean with water and mild soap.

3. Dry the eartip before placing it back on the earphone.

CLEANING AND REPLACING ACCU•FIT EARTIPS

The ACCU•Fit™eartip that is most comfortable is the likely choice, but it MUST

SEAL well in your ear. f you can easily hear others when the device is off,you

don’t have a good seal. Twist it in deeper,or choose another eartip.

When changing eartips

make sure the eartip its

securely on the stem o

the earphone. correct incorrect

smallLarge

Foam Glider3- lange

PROPER INSERTION

Important: Sound quality, full bass response and noise isolation all depend

on a good ACCU•Fit™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- lange eartip: Moistening eases

insertion.

•Foam eartip: 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 eartip: Simply push into ear canal.

Remove earphones slowly with a twisting motion to gradually break the seal.

Do not pull on the cable to remove the earphones.

REMOVAL

ACCU•FILTERS

Etymotic earphones have special ACCU•Filter™wax 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. f a filter becomes clogged,it should be replaced.

A dirty ACCU•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•F lter Removal Note: Use the tool to remove the ilter.

ACCU•F lter Replacement Note: Do not use the tool to replace the ilter.

1. Remove Eartip. 2. Insert tool into

the ilter.

3. Remove ilter.

1. Insert a new ilter. 3. Re-attach eartip.

2. Press gently

against a hard

sur ace to secure

the ilter in place.

SPECIFICATIONS

Response Accuracy: 86%

No se Isolat on: 35-42 dB

Frequency response: 20 Hz - 16 kHz

Acoust c polar ty: + electrical = + acoustic

Transducer type: balanced armature

1 kHz sens t v ty: 108 dB SPL for a 0.2 V input (102 dB @ 0.1 V; 106 dB @ 1mW)

Impedance: 27 Ohms nominal

Max mum output: 122 dB SPL

Max mum cont nuous nput: 0.75 Vrms

Cable: 5' with 3.5 mm stereo plug

We ght: less than 1 oz.

Response of ER•4PT Earphones (measured at eardrum)

The gray line is the ER•4PT earphones response curve.The dashed line is the target

response of the open ear to a live performance. The solid black line represents how a

listener perceives the sound.

CAUTION

n rare instances an eartip may come off in the ear canal when removing the

earphone. f 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. t 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 of very loud sounds.A sealed eartip and lower listening levels allow for

longer periods of safe listening.

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