Etymotic Research ER4SR In-Ear Studio Reference Earphones

Etymotic Research ER4SR In-Ear Studio Reference Earphones

Etymotic Research ER4SR In-Ear Studio Reference Earphones

Etymotic Research ER4SR In-Ear Studio Reference Earphones

Etymotic Research ER4SR In-Ear Studio Reference Earphones

Show MoreLess


Now Viewing:

In Stock
Order in the next 0:00:00 to ship today

Product Highlights

  • Balanced-Armature Drivers
  • Noise-Isolating Design (98%)
  • 20 Hz to 16 kHz Frequency Response
  • High Output Sensitivity (98 to 104 dB)
  • L-R Channels Matched Within 1 dB
  • Anodized and Laser-Etched Aluminum Body
  • Includes Six Pairs of Eartips
  • Reinforced, Detachable Cable
  • Zippered Storage Case
Show moreShow less
$0.00 Tax Collected Outside NY and NJ

You Pay: $349.00

Add to Wish List Item in Wish List

Etymotic Research ER4SR overview

  • 1Description

Developed as an update to Etymotic's ER-4 flagship-line of earphones, the ER4SR deliver reference-quality sound reproduction with high output levels for discerning sound engineers, audiophiles, and musicians who demand the highest fidelity.

The ER4SR feature balanced-armature technology, custom-tuned drivers, L-R channels matched within an industry-leading 1 dB, and 3-flange eartips which completely seal the ear to offer an impressive 98% of sound isolation. Their high sensitivity allows them to deliver a robust sound level up to 122 dB, making them well suited for portable media players with low output.

The ER4SR combine style and functionality with a sleek, anodized and laser-etched aluminum body, and a detachable, reinforced cable which is user-replaceable. They come with four pairs of 3-flange eartips, two pairs of foam eartips, a shirt clip, a filter removal tool &filters, and a zippered storage case.



  • Reference-quality earphones with balanced-armature technology
  • L-R channels are matched within an industry-leading 1 dB across frequencies, from 100 Hz to 10 kHz
  • High output sensitivity (98 to 104 dB)
  • Earphones completely seal the ear and provide 98% noise isolation
  • Reinforced, detachable cable is user-replaceable
  • Sleek, anodized and laser-etched aluminum body
  • Replaceable filters protect the drivers from ear wax
  • Includes four pairs of 3-flange eartips, two pairs of foam eartips, shirt clip, filter-removal tool & filters, zippered storage case
UPC: 846430002012
In the Box
Etymotic Research ER4SR In-Ear Studio Reference Earphones
  • Detachable 5' Cable with 3.5mm Gold-Plated Stereo Plug
  • 2 x Pairs Standard 3-Flange Eartips
  • 2 x Pairs Large 3-Flange Eartips
  • 2 x Pairs Large Black Foam Eartips
  • Filter-Removal Tool and Filters
  • Shirt Clip
  • 1/4" Stereo Phone Adaptor
  • Zippered Storage Case
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Etymotic Research ER4SR specs

    Design In-Ear (Intra-Aural)
    Driver Type Balanced
    Noise Attenuation 35 to 42 dBA
    Frequency Response 20 Hz to 16 kHz
    Sensitivity 104 dB
    Impedance 45 Ohms
    Maximum Sound Pressure Level (SPL) 122 dB
    Audio Connector 1/8" (3.5 mm)
    Adapter (Included) 1/4" (6.3 mm)
    Detachable Yes
    Cable Length 4.9' /  m
    Packaging Info
    Package Weight 0.9 lb
    Box Dimensions (LxWxH) 9.3 x 6.2 x 2.4"

    Etymotic Research ER4SR reviews

    ER4SR In-Ear Studio Reference Earphones is rated 5.0 out of 5 by 4.
    Rated 5 out of 5 by from Unique, spectacularly transparent, not for bass heads I am not a big fan of IEMs, I prefer over the ears headphones but ER4SR are special. With proper sealing they sound spectacular, but the seal is absolutely critical. That means you have to be OK with triple flange ear tips going really deep into your ear. It does not bother me, I know people who do not like it, but I think this is the only way to listen to the ER4SR full potential. They need good amplification as well. I do not treat them as IEMs for mobile device, for that I have SE535. But if you really want to hear your music get those. Superb noise isolation, superb sound, if I had to live with one set of IEMs that would be ER4SR
    Date published: 2017-10-29
    Rated 5 out of 5 by from Sugar-free sound The transparency you get with this earphones is like nothing I've experienced before. I had the Audeze EL-8 CB + AudioQuest Drangofly Red 2.0 (connected to a laptop or to an iPhone 7) and I ended up selling it because, to my untrained ears, the sound was good but not great. I read this earphones are famous for their flat response. No flavors in here: at Etymotic they are obsessed with delivering to your ears what was originally recorded at the studio. Of course, I have no way to validate such claim. What I can validate is that I haven't experienced a sound so detailed and rich before. Every instrument in its place, not fighting to fill up the air. Now I realized how conditioned by the bass was my listening experience before. This earphones is like starting a sugar-free diet. And the vocals, wow, it's like the singer is sitting next to you. Listen to The Light (masters edition) by Regina Spektor on Tidal and you'll know what I'm talking about. I've paired this with the Oppo HA-2 SE.
    Date published: 2017-08-23
    Rated 5 out of 5 by from Accurate sound reproduction for sound studio work What do you want to do with these headphones? If you want to listen to the music while commuting or traveling DO NOT buy these. Buy its twin ER4XR where X stands for Enhanced and Extended Bass. I bought these because for my home video sound work I need a very accurate sound reproduction and I get this using these headphones.
    Date published: 2017-10-29
    Rated 5 out of 5 by from incredible audiophile sound I LOVE these headphones!� I am using them with custom ear molds (worth every penny).� They sound great just plugged into an iPhone, but if you want to get your full $ worth, I suggest lossless source files (Tidal or better) and a great DAC/AMP.� I invested in a Chord Mojo to pair with these and could not be happier.� I fly a lot for business, and my life just got a lot better...
    Date published: 2018-02-20
    • y_2018, m_10, d_16, h_15
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_4
    • loc_en_US, sid_1265067, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_bhphotovideo
    Be the first to review this item

    Etymotic Research ER4SR Q&A

    Etymotic Research ER4SR accessories

    See any errors on this page? Let us know. vdxrywbwwqewyvwsxfy