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Etymotic ER4-XR - Extended Response In Ear Isolating Earphones with Replaceable Cable

  • Accuracy in the midrange and high frequencies with extra presence in low end
  • Precision-matched custom-tuned balanced-armature drivers
  • Industry-exclusive channel-matching compliance graph
  • Replaceable filters protect the balanced-armature drivers from ear wax
  • Reinforced cable for extended durability
  • Manufacturer warranty: 24 months
  • Etymotic ER-4XR

    Etymotic ER4-XR 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 ER4-SR, the ER4-XR is built with precision machined, anodized and laser-etched aluminium body and offers user-replaceable detachable cables.

    The ER4-XR is ideal for anyone looking for exceptional sound quality with just the right amount of low-end enhancement. An assortment of eartips is provided in the package of the ER4-XR earphones. ER4-XR incorporates the stringent channel-matching standard used in the ER4-SR.The triple-flange eartips reduce sound an average of 35dB, while the foam eartips provide slightly more sound reduction of 42dB.

    Etymotic invented noise-isolating, in-ear earphones. Etymotic's original insert earphone design, developed for auditory research and medical diagnostics, used balanced armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones.

    Decades of research and development.


    Etymotic ER4-XR


    Leading Technology
    Etymotic ER4 series earphones were the first earphones commercialised using balanced armature driver technology and are recognized as the world leader in response accuracy, to which all other earphones are compared. ER4XR offers high accuracy and near flat extension, but with slightly enhanced bass.

    Compliance Graph
    Included with every pair of ER4 earphones is an industry-exclusive channel-matching compliance graph, signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers.

    Superior Isolation
    Providing the highest noise isolation of any earphones or headphones on the market today, Etymotic ER4-XR include an assortment of noise-isolating eartips options to ensure proper seal and comfort.

    Durable Design
    The user-replaceable acoustic dampers are not only a part of the driver housing, but also protects the balanced armature driver from ear wax. Etymotic also includes a 2 year warranty.



    • Transducer type: High performance, balanced armature micro-drivers
    • Response Accuracy: 92%
    • Noise Isolation: 35-42dB
    • Frequency response: 20Hz - 16kHz
    • Sensitivity: 98dB
    • Impedance: 45Ω
    • Sound Pressure Level: 122dB
    • Cable length: 1.5m
    • Connection: 3.5mm stereo plug



    • Unsurpassed accuracy in the midrange and high frequencies with slight low-end boost
    • Precision-matched custom-tuned balanced-armature drivers
    • Assortment of noise-isolating eartip options ensure proper seal and comfort
    • Reduction of outside noise reduces the risk of listening at unsafe levels
    • Braid-reinforced cable for enhanced durability and low microphonic effect
    • User-replaceable filters protect the balanced-armature drivers from ear wax
    • 2-year replacement warranty


    Etymotic ER4-XR



    • Etymotic ER4-XR Extended Response Earphones
    • 6.35mm stereo adaptor
    • Assortment of silicone eartips
    • Filter changing tool and replacement wax filters
    • Channel-matching compliance graph
    • Shirt clip
    • Airline adaptor
    • Travel pouch
    • Storage box


    1. BrandEtymotic
    2. Cable Length1.5m to 3m
    3. Cable Length Text1.5m
    4. ColourBlack
    5. Connectivity TechnologyWired
    6. Connector AngleAngled
    7. Connector TypeHeadphones (3.5 mm stereo jack)
    8. Detachable CableNo
    9. Driver TypeBalanced Armature
    10. Frequency Response20Hz - 16kHz
    11. Headphones TechnologyBalanced Armature
    12. Headphones TypeHeadphones - binaural
    13. Headphone Fit TypeIn-Ear
    14. Impedance45Ω
    15. Manufacturer Warranty2 Years
    16. Number of driversSingle Driver
    17. GTIN846430002029
    18. Part NumberER4XR
    19. Product TypeEarphones
    20. Recommended useDigital audio player;Portable audio system;Studio
    21. Feature keywordComfortable;Ear Canal;IEM;In Ear;Lightweight;Noise Isolation;Professional;Studio
    22. Sensitivity98dB
    23. Sound Output ModeStereo
    24. Headphones Form FactorIn-Ear
    25. Included Accessories6.35mm stereo adaptor, Eartips, Filter changing tool and wax filters, Shirt clip, Airline adaptor, Travel pouch, Storage box, Compliance graph
    26. Sound Output ModeStereo