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Etymotic ER4SR Studio Reference In-Ear Headphones

Etymotic ER4SR Studio Reference In-Ear Headphones
$349.00
Brand: Etymotic
Category: Noise-isolating In-Ear Earphones
  • Frequency Response: 20 Hz - 16 kHz
  • Noise Isolation: 35-42 dB
  • Maximum Output (SPL): 122 dB
  • Impedance (@1kHz): 4XR (45 Ohms) 4SR (45 Ohms)
  • Cable: 5 ft Detachable
  • Transducers: High performance, balanced armature micro-drivers

Our Rating

The overall rating is based on review by our experts

8
  • Features 8 / 10
  • Performance 8 / 10
  • Price 8 / 10
  • Quality 8 / 10
  • Support 8 / 10

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ER4SR is Etymotic’s new reference standard hi-fidelity earphone, for those who demand nothing less than the highest fidelity. The next generation of our long revered flagship earphone, the ER4S, the ER4SR delivers increased accuracy with greater sound output, or sensitivity. Like its predecessor, the ER4SR channels are matched within an industry-leading 1dB across frequencies from 100Hz to 10 kHz. The new ER4SR incorporates significant cosmetic and functional improvements, from a sleek, anodized and laser-etched aluminum body to the reinforced, user-replaceable detachable cable. The ER4SR is a must have for discerning engineers, audiophiles, and consumers wanting the most accurate in-ear earphone available.

Backed by decades of research and development for the ear

World leader in sound reproduction

  • 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

Timeless style and fit

  • Professional quality and reliability
  • An assortment of noise-isolating eartip options to ensure proper seal and comfort
  • CUSTOM•FIT option available
  • Highest noise isolation

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

Specs

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Noise-isolating Earphones

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
Custom-Fit Option Yes

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