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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 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.
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.
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.
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.
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