Etymotic Research ER3XR Extended Response In-Ear Headphones (Black)

Model: ER3XR UPC: 846430002111 Item: 170076


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Product Information


Renowned sound quality with low-end enhancement. ER3XR Extended Response earphones utilize Etymotic Research's balanced armature drivers that set the accuracy standards for all in-ear earphones in its class. Featuring detachable cables and precision-machined metal bodies, the ER3XR is designed for listeners who value the accuracy and noise isolation for which Etymotic Research is known but prefer a more robust presence in the lower range. An assortment of eartips provide 35-42dB of external noise isolation. Also includes a 4ft detachable, reinforced cable with MMCX connectors, filter removal tool and filters, and a storage pouch.


  • Enhanced and extended bass response
  • Precision machined metal bodies; high performance balanced armature micro-drivers
  • 2 year manufacturer’s warranty



  • Frequency response: 20Hz - 16kHz
  • Transducers: High-performance, balanced armature micro-drivers
  • Noise isolation: 35-42dB
  • Impedance (@1kHz): 22 ohms
  • Sensitivity (@1kHz) SPL at 0.1v: 102dB
  • Maximum output (SPL): 120dB
  • Cable: Detachable, 4 feet
  • Custom-fit option

What's in the Box

What's in the Box:

  • ER3XR Studio Edition In-Ear Headphones
  • Assortment of ear tips
  • Filter removal tool
  • Replacement filters
  • Pouch


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