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Etymotic Research ER4S Etymotic Research ER4S
  • Etymotic Research ER4S
  • Etymotic Research ER4S
  • Etymotic Research ER4S

Etymotic Research ER4S

Etymotic Research ER4S

$299.00
  • Lightweight audiophile in-ear headphones for portable listening with transparent, reference sound
  • Custom removable filters help shape frequency response to your preferences
  • Recommended for use with all portable players
  • High sensitivity means there is no amplifier required
  • Strong noise isolation
  • Accurate, real-ear response

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  • Description

    The Etymotic Research ER4S stereo headphones feature an ultra-lightweight design, up to 42dB of external noise attenuation, and an enhanced output level for both the high and low frequency range, a combination that ensures clear, natural listening enjoyment at safe and moderate playback levels. These headphones have the most accurate frequency response for monitoring musical material, and are recommended for home stereo and computer use, while also satisfying the requirements of most portable devices.

    • Lightweight audiophile in-ear headphones for portable listening with transparent, reference sound
    • Custom removable filters help shape frequency response to your preferences
    • Recommended for use with all portable players
    • High sensitivity means there is no amplifier required
    • Strong noise isolation
    • Accurate, real-ear response
  • Tech Specs

    Type
    In-Ear
    driver
    balanced armature
    Frequency Range
    20 Hz to 16 kHz
    Impedance
    100 Ohms
    Sensitivity
    108 dB/mW
    Maximum Input Power
    3.0 Vrms (Continuous)
    Connectors
    3.5 mm Stereo Mini Plug with 1/4" Adapter
    Cable Length
    5' (1.5 m)
    Weight
    1 oz (28 g)
  • In The Box

    • Etymotic Research ER4S - Noise-Attenuating Audiophile Portable Stereo Headphones
    • 5' Cable
    • 1/4" Stereo Phone Adapter
    • 6 x 3-Flange Eartips
    • 10 x Foam Eartips
    • Filter Changing Tool
    • 4 x Replacement Filters
    • Shirt Clip
    • Carrying Pouch
    • Storage Box
    • 1-Year Limited Warranty
  • Reviews

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The Etymotic Research ER4S stereo headphones feature an ultra-lightweight design, up to 42dB of external noise attenuation, and an enhanced output level for both the high and low frequency range, a combination that ensures clear, natural listening enjoyment at safe and moderate playback levels. These headphones have the most accurate frequency response for monitoring musical material, and are recommended for home stereo and computer use, while also satisfying the requirements of most portable devices.

  • Lightweight audiophile in-ear headphones for portable listening with transparent, reference sound
  • Custom removable filters help shape frequency response to your preferences
  • Recommended for use with all portable players
  • High sensitivity means there is no amplifier required
  • Strong noise isolation
  • Accurate, real-ear response

Customer Reviews

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