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Etymotic Research ER4XR Extended Range In-Ear Monitor Earphones

Item # ERER4XR (Part # ER4XR)
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Item Description:
  • High performance balanced-armature drivers
  • Sleek driver bodies with anodized finish
  • Braided cables for reduced microphonic effect
  • ER4XR Extended Response - The World's Most Accurate Earphones Just Got Better!
    Over 30 years ago, Etymotic invented noise-isolating, in-ear earphones. Etymotic's original design, developed for auditory research and hearing testing, used balanced-armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones.

    Why Etymotic?
    Etymotic designs products to measure, improve and protect hearing, and enhance the listening experience of music lovers everywhere. Audio engineers, musicians and audiologists at Etymotic have generated over 100 patents issued and pending.

    Why ER4XR Extended Response?
    ER4XR is the earphone for music lovers and hi-fi enthusiasts who want uncompromising accuracy in the mid-range and high frequencies, but appreciate a bit of extra presence in the lower end.

    The ER4XR incorporates the stringent channel matching standard used in the ER4SR and is built with precision machined, anodized and laser-etched aluminum bodies, and features user-replaceable detachable cables.

    User Detachable Cables
    To detach the cables, pull the cable connector away from the earphone body. Pull straight out-Do Not Twist.

    To attach the cables, align the key tab on the cable connector with the notch in the body of the earphone. Press together until it snaps in place.

    Changing the Filters
    Etymotic earphones have special filters that smooth the frequency response and prevent earwax from entering the earphones. The filters are located at the end of the earphone and are visible when the eartip is removed. When a filter becomes clogged it should be replaced. Filters should be changed when output decreases or sound quality declines.

    Product Details

    • Detachable 5 foot cable
    • High performance balanced-armature drivers
    • Sleek driver bodies with anodized finish
    • Braided cables for reduced microphonic effect

    Technical Specifications

    Frequency Response - 20 Hz - 16 kHz
    Transducers - High performance, balanced armature micro-drivers
    Noise Isolation - 35-42 dB
    Impedance (@1kHz) - 4XR (45 Ohms) 4SR (45 Ohms)
    Sensitivity (@1 kHz) SPL at 0.1v - 4XR (98 dB) 4SR (98 dB)
    Maximum Output (SPL) - 122 dB
    Cable - 5 ft Detachable
    User Replaceable ACCU-Filters - Yes

    ER4XR Earphones
    Replacement Eartip Assortment
    1/4" Stereo Phone Adapter
    Filter Removal Tool & Replacement Filters
    Shirt Clip
    Carrying Case
    2-Year Limited Warranty
    This Kit Includes:

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