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Etymotic Research Inc ER4XR
Extended Bass Response In-Ear Headphones


Our Price: $349.00
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Etymotic Research Inc ER4XR
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Part of the ER4® reference earphone series developed for auditory research and hearing testing by Etymotic Research—inventors of noise-isolating in-ear earphones—the ER4XR (EXtended Response) use balanced–armature receivers. This technology, offered in a consumer earphone here first, has established them as the gold standard for high-definition, in-ear earphones. The ER4XR models features extended bass response—made for music lovers and hi-fi enthusiasts who want to experience uncompromising precision in the midrange and high frequencies, but also appreciate a bit more added presence in the lower end. Like the ER4SR models (sold separately), the ER4XRs are designed and built with precision machined, anodized and laser-etched aluminum bodies and feature user-replaceable, detachable cables. They also employ the same stringent channel-matching standard used in the ER4SR models. The ER4XR is great for anyone seeking exceptional sound quality along with just the right amount of low-end enhancement. They're part of the series of earphones recognized as the world leader for signal response accuracy to which all other earphones are compared.

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

Etymotic Research Inc ER4XR Includes:

  • ER4XR earphones
  • Detachable, 5ft cord with 3.5mm gold-plated stereo plug
  • ÂĽ" stereo phone adapter
  • Assortment of eartips
  • Filter removal tool and replacement filters
  • Shirt clip
  • Zippered storage case
  • Performance certificate

Etymotic Research Inc ER4XR Features:

  • Unsurpassed frequency response accuracy and sound quality — 92%+ response accuracy from 20 Hz – 16 kHz
  • The only earphones with balanced-armature, precision-matched, custom-tuned drivers
  • Highest output sensitivity in its class
  • Professional quality and reliability
  • An assortment of noise-isolating eartip options to ensure proper seal and comfort
  • CUSTOM•FIT option available (consult your Sales Pro for details)
  • First earphones to completely seal the ear
  • 98% (35 dB - 42 dB) noise isolation —highest of any earphones or headsets on the market today
  • Reduction of outside noise reduces the risk of listening at unsafe levels
  • 2-year replacement warranty
  • User-replaceable filters protect the balanced-armature drivers from earwax

Etymotic Research Inc ER4XR Specifications:

  • Frequency Response: 20 Hz - 16 kHz
  • Transducers: High performance, balanced armature micro-drivers
  • Noise Isolation: 35 - 42 dB
  • Impedance (@1kHz): 45 Ohms
  • Sensitivity (@1 kHz) SPL at 0.1v: 98 dB
  • Maximum Output (SPL): 122 dB
  • Cable: 5ft, detachable
  • User Replaceable ACCU-Filters: Yes
  • Warranty: 2 Years
  • Custom-Fit Option: Yes (contact your Sales Pro for more information)
5-Pairs of Standard Frost 3-Flange Eartips
Etymotic Research Inc ER38-15SM 5-Pairs of Standard Frost 3-Flange Eartips
Etymotic Research's ER38-15SM is a Package of 10 Eartips (5 pair) that are designed for use with the following systems:  ER•4 hf2 hf3 hf5 mc3 mc2 mc5 HD5 Safety ETY•Kids Music•PRO MP-9•15 HD•15 GSP•1 ...
12.75 14.00 9

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