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ER4XR Earphones

$309.99

Spend $150 or More (pre-tax) and Save $50 off Your Purchase! PLUS, buy any Earphones and Receive free Wireless HearMuffs in Blue!

Details

Quick Overview

ER4XR is Etymotic’s in-ear monitor for those who demand nothing less than the highest reproduction accuracy in the midrange and treble frequencies, but prefer a tastefully added bass presence.

The ER4XR right and left channels are matched within an industry-leading 1dB across frequencies from 100 Hz to 10 kHz.

Description

ER4XR is the highest-performing single driver in-ear monitor. The IEM shells are made of anodized aluminum, CNC machined with extremely tight tolerances. Using a single Balanced Armature (BA) driver allows for extremely accurate IEM without the added complexity of crossovers, and helps keep the aluminum body small and slim. The included high-quality user-replaceable cable is reinforced and twisted, to improve longevity and durability.

Etymotic IEMs are world renowned for their class-leading passive isolation, providing 35-42 dB attenuation (depending on ear tips used and the depth of insertion). For comparison, most custom IEMs provide approx. 25-28dB attenuation and foam ear plugs attenuate up to 32 dB. The ER4XR is a must-have for audiophiles and consumers, looking for very accurate in-ear monitors with a taste of added bass, for a more “fun” sound signature.

Which ER4 is right for you?

Both ER4 models, the ER4SR and ER4XR, use the same Balanced Armature (BA) drivers. The only difference is the tuning of the lower (bass) frequencies. The ER4SR, being the “reference” model, is tuned to be as precise and flat as possible. The ER4XR, being the “fun” model, is tuned with added bass. As you can see from the frequency response graphs below, ER4XR adds 1-2dB to the mid-bass frequencies (below 200Hz) and 3-4dB to the lower-bass and sub-bass (below 100Hz). The rest of the frequencies are practically identical.

ER4SR is ideal for sound engineers and mixing technicians who must have a precise and accurate sound reproduction across all frequencies. ER4SR is the IEM of choice for audiophiles and consumers who like to listen to their music exactly the way it was recorded.

ER4XR with its tastefully added bass is favored by audiophiles and consumers who prefer a little extra bass presence when enjoying their music. This model is not bass heavy by any means.

Frequency response graphs and Etymotic’s target:

Etymotic’s target frequency response graph represents a “perceptibly flat” frequency response. Our goal is to have a flat frequency response curve when the music notes hit your eardrums. To achieve that, we need to account for the resonance inside the average ear canal, since IEMs bypass the outer ear structure. The result is the need for higher SPL in the 2-5k region (lower treble) for compensating said resonance. That is the reason for the “hump” in that region.

The target curve that Etymotic is using for tuning our IEMs differs slightly from the Harmon preference curve. It was developed in-house more than 20 years ago, leveraging on our human hearing expertise and acoustics research.

Accurate Earphone Reproduction

When tuning in-ear monitors to accurately reproduce a recording of a live performance, our goal is for the sound hitting the eardrums to be identical to that at the original performance. To achieve this, the acoustic properties of the ear must be factored in. The acoustic resonance and horn effects of the ear change a flat audio signal entering the open ear into sound with a (2700 Hz) high-frequency boost, which is the same response heard at the eardrum in a typical ear. That is the reason for the “hump” in the frequency response graph below, which assures the eardrums perceive a perfectly flat frequency response for all frequencies.

Channel-Matching Compliance Graph supplied with each ER4SR and ER4XR.

Additional information









Which ER•4 is Right for You?

Included with every pair of ER•4 earphones is an industry-exclusive channel-matching compliance graph, signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers.


ER4SR is Etymotic’s new reference standard hi-fidelity earphone, for those who demand nothing less than the highest fidelity. The next generation of our long revered flagship earphone, the ER4S, the ER4SR delivers increased accuracy with greater sound output, or sensitivity. Like its predecessor, the ER4SR channels are matched within an industry-leading 1dB across frequencies from 100Hz to 10 kHz. The new ER4SR incorporates significant cosmetic and functional improvements, from a sleek, anodized and laser-etched aluminum body to the reinforced, user-replaceable detachable cable. The ER4SR is a must have for discerning engineers, audiophiles, and consumers wanting the most accurate in-ear earphone available.


ER4XR is the earphone for music lovers and hi-fi enthusiasts who want uncompromising accuracy in the midrange and high frequencies, but appreciate a bit of extra presence in the lower end. Like the ER4SR, the ER4XR is built with precision machined, anodized and laser-etched aluminum bodies and features user-replaceable detachable cables. The ER4XR also incorporates the stringent channel-matching standard used in the ER4SR. The ER4XR is ideal for anyone looking for exceptional sound quality with just the right amount of low-end enhancement.


ER•4PT, intended for sound engineers and audiophiles, comes equipped with extra accessories. ER•4PT earphones can be used with portable devices without an additional amplifier—or converted to the ER•4S response with the included P-to-S cable. Compared to the ER•4S, the ER•4PT has 10 dB greater output at high frequencies and 13 dB greater output at low frequencies. The higher sensitivity and enhanced bass of the ER•4PT have made it the most popular earphone in the series.


ER•4S earphones were designed to compensate for the high frequency emphasis in all CD recordings, in order to provide accurate sound reproduction. Performing musicians often use them as in-ear monitors because the response of the ER•4S matches the response of most typical monitor loudspeakers. The high accuracy and exceptional sound isolation of the ER•4S have made these earphones popular with musicians, recording engineers and audiophiles. ER•4S earphones can be used with a headphone amplifier when using low power portable devices.


ER•4B are for the binaural recording enthusiast. The ER•4B is an ideal earphone for use with material that has not been equalized for loudspeaker playback. It was developed from the ER-1 earphone that is referenced to a flat diffuse field and used primarily for speech reception research, where the goal is to produce the same frequency response at the eardrum as would be produced in the live situation.

–>

Accurate Earphone Reproduction


For earphones to have 100% accuracy, a recording of a live performance must produce exactly the same sound at the eardrum as the original performance. To achieve this, the acoustic properties of the ear must be factored in. The acoustic resonance and horn effects of the ear change a flat audio signal entering the open ear into sound with a (2700 Hz) high-frequency boost, which is the same response heard at the eardrum in a typical ear.


New ER4 Comparison Chart
New ER4 Comparison Chart
frequency_response

Frequently Asked Questions

1. What is the difference between the SR and XR Models?


The ER4SR is the most accurate in-ear earphone on the market delivering a flat response across all frequencies while the ER4XR has high accuracy, but with slightly enhanced bass.


2. What are the differences between the old ER4s and the new models?


The new ER4 models feature metal bodies with an anodized finish, detachable, replaceable cables, and increased sensitivity for a more dynamic sound.


3. Is there a difference in impedance, sensitivity, and frequency response between the ER4SR and the ER4XR models?


No, both models feature 45 ohm impedance, 98 dB sensitivity, and a frequency response from 20 Hz – 16 kHz.


4. Is the same balanced armature used for the new ER4 series as the current ER4?


No, The ER4SR and the ER4XR have drivers that are unique to their respective models. They are not the same drivers as in previous generations of the ER4.


5. Will the current ER4 Series (PT, S, and B) be discontinued?


The current models will remain in our inventory and available for sale until late 2017 or as supplies last.


6. Can the cable be removed? If so, how is this done?


Yes, the new ER4SR and ER4XR feature a removable, replaceable cable. The cables are simple to detach by pulling the cable at the cable connector point while holding the ER4 body and pulling the cable connector straight from the body without twisting. The cables snap back in to the bodies by aligning the tab on the cable with the slot at the end of the metal ER4 body.


7. Is there a cable converter like the current ER4P to the ER4S?


There is no converter as the electronics on the new ER4 series have been modified making the conversion unnecessary. There is no way to convert the XR response to that of the SR.


8. Is the cable the same for the ER4SR as the ER4XR?


Both models use the same cable


9. Is the cable connector MMCX? Can I use other manufacturer's cables with the new ER4 series?


The cable connector is a customized version of the MMCX. Since it is customized, it is unlikely that other manufacturer's cables will work with the new ER4 models.


10. Will replacement cables be made available?


Replacement cables are available in Accessories.
Replacement cables will be available from Etymotic, but not until August 1, 2016. Part numbers and pricing have not been published at this time.

–>

11. Can my current ER4 accessories be used with the new ER4 models?


Yes, the current ER4 eartips and the green ER38-50 filters will fit the new models.


12. What is included in the package with the new ER4 series?



  • Eartips: 2 pairs standard 3-flange (1 set installed on the earphones), 2 pairs large 3-flange, and 2 pairs large black foam eartips.

  • Filter removal tool and replacement filters

  • Shirt clip

  • ¼" stereo phone adaptor

  • Performance certificate

  • Deluxe zippered storage case.


13. What is the warranty on the new ER4 series?


Both models come with a full 2-year warranty.


14. Can I trade-in / upgrade my current ER4 for a new model?


Yes, there are options for trading in and/or upgrading to a new ER4 from the current models. Please refer to the Etymotic website for details.


15. How do I know which ER4 model is right for me?


Please visit the Etymotic website for information on the right product to fit your specific listening requirements.


16. I purchased custom molds for my previous generation ER4s. Will they work with the new earphones?


Yes, in most cases, custom earmolds made for the previous generation of the ER4 will work with the new models.
ER-4 Upgrade Options

Available July 1, 2016


Etymotic has a special ER4 upgrade option for customers that currently own Etymotic's original ER4 microPro Series Earphones (ER4B, ER4PT, ER4S).



  • All purchases are new stock. No products have been opened, pre-owned or reconditioned. Once we receive your product, we will send you an email with a discount code to use at checkout on etymotic.com. The discount will automatically be applied. –>

  • This program is limited only to the ER•4 microPro Earphones (ER4B, ER4PT or ER4S). No exceptions.

  • Once we receive your ER4 earphones, we will send you an email with a discount code to use at checkout on etymotic.com. Add an ER4SR or ER4XR to your shopping cart and then apply the code to the cart to have the discount applied to your purchase.

  • The discount code is valid for 30 days from the date of issuance.

  • To upgrade your existing ER4B, ER4S or ER4PT complete the ER4 Upgrade Option Return Form.


To upgrade your existing ER•4, complete the form below. A valid email address is required.


Upgrade Option 1
Purchases made within the last six months.



  • If you purchased an ER4B, ER4PT or ER4S in the last six months January 1, 2016 thru June 30, 2016 from an authorized Etymotic reseller, you can purchase the NEW ER4SR or ER4XR earphone for $75, plus shipping charges.*

  • Original ER4 product must be returned.

  • Proof of purchase is required.

  • Valid for purchases made between January 1, 2016 thru June 30, 2016.

–>

Upgrade Option 1
In-Warranty.



  • If you purchased an ER4B, ER4PT or ER4S from an authorized Etymotic reseller within the 2-year warranty period, you can purchase the NEW ER•4SR or ER4XR earphones for $225, plus shipping charges.*

  • Original ER4 product must be returned.

  • Proof of purchase is required.

  • Valid for in-warranty product only. If it’s determined that your original ER4 earphone is not covered under warranty, you can purchase a new ER4SR or ER4XR earphone as outlined in Option 2.


Upgrade Option 2
Out-of-Warranty.



  • If you own an ER4B, ER4PT or ER4S, you can purchase the NEW ER4XR or ER4SR earphones for $275, plus shipping charges.*

  • Original ER4 product must be returned.

  • Proof of purchase not required.

  • Customer-damaged or modified products that are not covered under Etymotic's warranty policy are eligible for this upgrade option.


ER4 Upgrade Option Return Form


*Shipping charges


Shipping charges and tax apply (where applicable).


Shipping is calculated by UPS based on shipping from Etymotic Research (Zip Code 60007) to the delivery address on the order. All available shipping options for your order are presented in the cart. Actual delivery times are at the discretion of UPS. Tracking information from UPS will be emailed to the email address listed on the order when the order is shipped. You are responsible for Customs Fees which are not included in the shipping charges. Etymotic Research does not have control over these charges and cannot estimate what they may be.
Accurate Earphone Reproduction

For earphones to have 100% accuracy, a recording of a live performance must produce exactly the same sound at the eardrum as the original performance. To achieve this, the acoustic properties of the ear must be factored in. The acoustic resonance and horn effects of the ear change a flat audio signal entering the open ear into sound with a (2700 Hz) high-frequency boost, which is the same response heard at the eardrum in a typical ear.


New ER4 Comparison Chart
New ER4 Comparison Chart

Channel-Matching Compliance Graph supplied with each ER•4

Included with every pair of ER•4 earphones is an industry-exclusive channel-matching compliance graph, signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers.


Channel-Matching Compliance Graph supplied with each ER•4PT
–>

Instructions for Use

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 of how to get a proper fit in the Earphone Insertion Video



  • While pulling up and out on the back of the ear carefully insert the earphone.
  • Twist the earphone 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.


Proper Insertion 1


Removal


Remove earphones slowly with a twisting motion to gradually break the seal. Do not pull on the cable to remove the earphones.

Attaching the Clip


Shirt clip attaches to the splitter cable.


Shirt Clip 1

Shirt Clip 2

Note: Securing splitter cable helps reduce cable noise.
–>

Using the Slider


Slider is used to snug the cable under the chin to help secure the earphones.


Cord Slider 1

Cord Slider 2




Detaching Cables



Detach 1
  1. Grab the body of the earphone.


Detach 2
  1. Pull the cable connector away from the earphone body. Do not twist. Pull straight out to prevent damage to the key tab.


Note: Do not pull or twist from the cable connector. It's important to pull straight out.



Attaching Cables



Attach 3

Note: If the key tab is not aligned with the notch, snap will not engage.




Attach 1
  1. Align the key tab with the notch in the body of the earphone and cable connector.


Attach 2
  1. Press together until you feel it snap in.




Changing Filters


Etymotic earphones have special filters that smooth the frequency response and prevent earwax from entering the earphones. A 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:Filters are not reusable.


Removal


Note: Use the tool to remove the filter.


Filter Removal 1
  1. Remove eartip.


Filter Removal 2
  1. Insert tool into the filter.


Filter Removal 3
  1. Remove filter and discard.




Replacement


Note: Do not use the tool to replace the filter.



Filter Install 1
  1. Insert a new filter.


Filter Install 2
  1. Press gently against a hard surface to secure it in place.


Filter Install 3
  1. Re-attach eartip.




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:



  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.


Important



  • 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 eartips frequently.

In The Press

http://www.soundguys.com/11080-11080/"; target="_blank">ETYMOTIC ER4SR REVIEW
Flat as hell, in a good way.
SoundGuys
soundguys.com
January 27, 2017


http://headfonics.com/2017/01/the-er4xr-by-etymotic/"; target="_blank">THE ER4XR BY ETYMOTIC
$301-400, Balanced Armature, IEM & Earphones
HeadFonics
headfonics.com
January 4, 2017


http://www.emusician.com/gear/1332/mini-gear-guide/61191"; target="_blank">Mini Gear Guide: High-Performance In-Ear Monitors From Etymotic
Electronic Musician
emusician.com
December 21, 2016


http://www.thegadgetguycolumn.com/2016/08/22/etymotic-er4sr-er4xr-audio-excellence/#.WNLF7RilmbV"; target="_blank">Etymotic ER4SR & ER4XR- Audio Excellence
The Gadget Guy – Gadget News
thegadgetguycolumn.com
August 22, 2016

Earphone Insertion Video

Transducers

Noise Isolation

35-42 dB

impedance

sensitivity

maximum_output

Cable

replaceable_filters

Warranty

custom_fit_option

What's In the Box?

  • In Ear Monitors
  • Detachable, 5 ft. cable with 3.5mm gold plated stereo plug
  • Assortment of eartips: 4 Dual Flange Silicone Pairs: S, M, L, XL. 2 Triple Flange Pairs: Standard and Large. and 2 Foam Pairs: Standard
  • Filter removal tool and replacement filters to protect the BA drivers from ear wax
  • Shirt clip
  • Zippered storage case
  • Channel-Matching Compliance certificate

Technical Specs

  • Frequency Response: 20 Hz – 16 kHz
  • Transducers: Single high-performance balanced armature per channel.
  • Noise Isolation: 35dB using silicone ear tips, 42dB using foam ear tips
  • Impedance: 45 Ohms @ 1kHz
  • Sensitivity: 98 dB @ 1kHz, 1mW
  • Maximum Output (SPL): 122 dB
  • Cable: Detachable reinforced, twisted 5 ft with MMCX connectors
  • User Replaceable ACCU-Filters: Yes
  • Warranty: 2 Years
  • Custom-Fit Option: Yes

Customer Reviews

Based on 28 reviews
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100.0
R
Robert Meyer
ER4XA replaced ER4P, very happy!

Bought the ER4P in 2003 after reading reviews. Initially had to learn to insert properly. The sound was like being present in person if the recording was descent. Damaged the cord in 2017 which Etymotic repaired. I miss that aspect of their business. My only wish that the ER4P had a bit higher curve in the bass region. One tip broke in 2025 probably due to stress in its case. Soon ordered the ER4XR as I did not want to use my over the ear noise cancelling phones mowing the lawn and other times of sweat. The ER4XR fixed the bass complaint. Am very happy with the purchase. As a result, picked up a another for a spare. The clarity is amazing. The aluminum casing should be stronger, more durable, than the plastic ER4P. I mostly listen to classical music and movies at home when I really want the sound quality. I carry them most places I go. Also use cheap $20 Axxxx phones which are also amazing when I want to easily hear other things going on in the surroundings.

C
Carl
Finally time for new Etys

After being a first ER4P (with the S adapter) buyer in 2004, I finally had to buy new Etys as the cord had one too many cuts and the left filter housing starting to crack. The 4S always felt a bit light in the lower region compared with playing in live acoustic orchestras, so I went with the XR and am incredibly happy with the choice. The 4P was only ever used for travelling when I did not have enough power to drive it as an S, and the loss in treble was always painful before getting used to it over longer flights. The 4P's tilt never sat right with me, even if I did wish for a bit more body in the bass.

I don't doubt that I would have been happy with the SR also, given how crazy good the 4S was in many recordings that didn't really include as much lower region. It is hard to properly compare mid and high on the XR with the 4S as I am so used to the 4S which has some songs shine on that model specifically. With the XR, I am appreciating most things and it does have a more similar sound profile to my mastering studio's main speakers. It doesn't quite have the same effortless deep end though, so the XR is a bit more muffled comparatively speaking. They are a tad higher than my studio in the low end, but not disturbingly so. I think the transition between lower mid and bass is where I would have primarily loved a db less or so, but that is just a guess ofc.

My 4S was always good to check some mid and top end on, so I suspect the SR would have served the same purpose. My IEMs aren't really for that purpose though, as I use them more for travelling and when I am in noisy surroundings. I truly appreciate having an Ety that can give me that more overall similar impression of whatever I play.

In terms of comparisons with other IEM, nothing has ever sat as well in my ears and I simply cannot fly with anything else. As I like listening for a long time, the fit is absolutely key to how I feel about IEMs. If you like a deep fit, there is no competition to Etys. An absolute steal for the money also, no matter the price range I have compared with.

L
Liang L From California
The Real Gems

I used them with a DF Red and an ADI-2 DAC FS. The sound quality was fantastic. With them, I learned the shortcomings of my HD650 and even HD800S. The buds isolated sound so well that my wife complained about my newly acquired deafness. I prefer the foam tips though they are quite easy to be worn out. Once you get used to the slight wearing discomfort, you will agree that they are real gems.

A
Anonymous
Going to return

Going to return. Only one earbud was functioning.

J
John
Body too long for practical use

The sound is ok but the volume is very quiet, they are also wayy too long to be useful. You cannot wear these with a hat or helmet because the bodysticksway out of your ear

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