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ETYMOTIC RESEARCH - REFERENCE EARPHONES STEREO BOX 
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Retail Price:  $299.00 
Our Price: $194.32
You Save: $104.68 (35%)
Stock Status: In stock
Usually Ships: Within 1 Business Day
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PCNation #: G01793
Manuf. Part: ER4S
Condition: New and Factory Sealed
Weight: 1 lbs.
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  • Authorized dealer:
    PCNation is an authorized dealer of ETYMOTIC RESEARCH products
  • Warranty:
    1 Year Manufacturer's Warranty

Product Overview

ER-4S Stereo earphone have the most accurate frequency response for reproducing CD and MP3 recordings. The sensitivity is comparable to home and professional earphones. ER-4S Stereo earphone are ideal for home stereo use and computer use. ER-4S Stereo earphone can be used with a Earphone amplifier when using low power portable devices. ER-4S is the earphone preferred by musicians and audiophiles.
 
General Information
Manufacturer: Etymotic Research, Inc
Manufacturer Part Number: ER4S
Manufacturer Website Address: www.etymotic.com
Brand Name: Etymotic
Product Line: MicroPro
Product Series: ER-4
Product Name: MicroPro ER-4S Stereo Earphone
Product Type: Earphone
Technical Information
Connectivity Technology: Wired
Operating Distance: 60"
Sound Mode: Stereo
Impedance: 100 Ohm
Minimum Frequency Response: 20 Hz
Maximum Frequency Response: 16 kHz
Earpiece
Earpiece Technology: Dynamic
Earpiece Design: Earbud
Earpiece Type: Binaural
Ear Cushion: Foam
Earpiece Sensitivity: 108 dB SPL
Interfaces/Ports
Host Interface: Mini-phone
Physical Characteristics
Form Factor: Open
Weight (Approximate): 1 oz
Miscellaneous
Package Contents:
  • 1 x MicroPro ER-4S Stereo Earphone
  • 1 x 5 ft. cord with 3.5 mm stereo phone plug
  • 1 x 6.35mm stereo phone adapter plug
  • 6 x white 3-flange eartips
  • 10 x foam eartips (medium)
  • 1 x Filter changing tool
  • 4 x replacement filters
  • 1 x Shirt clip
  • 1 x Zippered pouch
  • 1 x Storage box
    		•
    Additional Information:
  • Lightweight and portable
  • High accuracy
  • Noise isolation: 20-25 dB
  • Acoustic polarity: +electrical = +acoustic
  • Transducer type: Balanced armature
  • Maximum output: 122 dB SPL
  • Maximum continuous input: 3.0 Vrms
  • External noise exclusion: 35 dB
  • Response Accuracy: 92%

    Optional Accessories:

  • Airline audio jack adapter
  • Cable to convert "P" to "S"

    		•
    Warranty
    Standard Warranty: 1 Year
    Parts Warranty/Labor: 1 Year

    Product reviews by customers

    Total Reviews: 1
    Overall Rating: 33333(3 of 5)
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    Good  


    Most recent reviews for this product:
    33333
    Reviewed By: Balisarda on 10/17/2007 6:19:29 AM
    Overall ratings: 3.0 out of 5
    Pros:
    Neutral frequency response, extraordinary detail. I''ve had no trouble at all running these higher-impedance models directly from my laptop without additional amplificaiton. These ''phones simply sound "RIGHT"! I''ve tried premium headphones from Sennheiser, AKG, Ultrasone, Grado, and beyerdynamic, and none have given me as much satisfaction.
    Cons:
    The triple-flanged ear plugs may not provide a good fit. Don''t worry, though: the foam ear plugs probably will!
    Comment:
    Simply an outstanding ''phone! If you like a neutral, detailed presentation, try the ER-4S!
    6089-G01793-9995 6089 ETYMOTIC RESEARCH 1 10515325
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