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Etymotic ER4-SR Studio Reference In Ear Isolating Earphones with Replaceable Cable

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  • Enhanced accuracy with greater sound output and flat response

  • ACCU-Driver balanced-armature, precision-matched, custom-tuned drivers

  • Braid-reinforced cable for enhanced durability and low microphonic effect

  • ACCU-Filter user-replaceable filters protect the balanced-armature drivers from ear wax

  • Industry-exclusive channel-matching compliance graph

Etymotic ER4-SR Studio Reference In Ear Isolating Earphones with Replaceable Cable

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Etymotic ER4-SR

Etymotic ER4-SR is the new reference standard hi-fidelity earphone for those who demand nothing less than the highest fidelity. This next generation ER4-SR delivers increased accuracy with greater sound output. Like its predecessor, the ER4-SR channels are matched within an industry-leading 1dB across frequencies from 100Hz to 10 kHz.

ER4-SR incorporates significant cosmetic and functional improvements, from a sleek, anodized and laser-etched aluminium 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.

Etymotic invented noise-isolating, in-ear earphones. Etymotic's original insert earphone design, developed for auditory research and medical diagnostics used balanced armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones.

Decades of research and development.

 

Etymotic ER4-SR

 

Leading Technology
Etymotic ER4 series earphones were the first earphones commercialised using balanced armature driver technology and are recognized as the world leader in response accuracy, to which all other earphones are compared. The ER4SR is the most accurate in-ear earphone on the market delivering a flat response across all frequencies.

Compliance Graph
Included with every pair of ER4 earphones is an industry-exclusive channel-matching compliance graph, signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers.

Superior Isolation
Providing the highest noise isolation of any earphones or headphones on the market today, Etymotic ER4-SR include an assortment of noise-isolating ACCU-Fit eartips options to ensure proper seal and comfort.

Durable Design
The user-replaceable ACCU-Filter acoustic dampers are not only a part of the ACCU-Chamber driver housing, but also protect the balanced armature driver from ear wax. Etymotic also includes a 2 year warranty.

 

TECHNICAL SPECIFICATIONS

  • Transducer type: High performance, balanced armature micro-drivers
  • Response Accuracy: 92%
  • Noise Isolation: 35-42dB
  • Frequency response: 20Hz - 16kHz
  • Sensitivity: 98dB
  • Impedance: 45Ω
  • Sound Pressure Level: 122dB
  • Cable length: 1.5m
  • Connection: 3.5mm stereo plug

 

FEATURES

  • Delivers increased accuracy with greater sound output and flat response
  • Accu-Driver balanced-armature, precision-matched, custom-tuned drivers
  • An assortment of noise-isolating ACCU-Fit eartip options to ensure proper seal and comfort
  • Reduction of outside noise reduces the risk of listening at unsafe levels
  • Braid-reinforced cable for enhanced durability and low microphonic effect
  • ACCU-Filter user-replaceable filters protect the balanced-armature drivers from ear wax
  • 2-year replacement warranty

 

Etymotic ER4-SR

 

PACKAGE INCLUDES

  • Etymotic ER4-SR Studio Reference Earphones
  • 6.35mm stereo adaptor
  • Assortment of ACCU-Fit eartips
  • Filter changing tool and replacement ACCU-Filter wax filters
  • Channel-matching compliance graph
  • Shirt clip
  • Airline adaptor
  • Travel pouch
  • Storage box

 

BrandEtymotic
Product TypeEarphones
ColourBlack
Feature KeywordComfortable, Ear Canal, IEM, In Ear, Lightweight, Noise Isolation, Professional, Studio
Recommended UseDigital audio player, Portable audio system, Studio
Manufacturer Warranty2 Years
Included Accessories6.35mm stereo adaptor, ACCU-Fit eartips, Filter changing tool and ACCU-Filter wax filters, Shirt clip, Airline adaptor, Travel pouch, Storage box, Compliance graph
Part NumberKETE0140
GTIN846430002012
Headphone Fit TypeIn-Ear
Headphones TypeHeadphones - binaural
Cable EntryNo
Cable Length1.5m
Connector AngleAngled
Connector TypeHeadphones (3.5 mm stereo jack)
Detachable CableNo
Driver SizeNo
Driver TypeBalanced Armature
Connectivity TechnologyWired
Earcup DesignNo
Frequency Response20Hz - 16kHz
Headphones Form FactorIn-Ear
Headphones TechnologyBalanced Armature
Impedance45Ω
Number of DriversSingle Driver
Sensitivity98dB
Sound Isolation (dB)35-42dB
Sound Output ModeStereo
Smartphone CompatibilityNo
Smartphone ControlsNo
Total Harmonic Distortion (THD)No
Wireless TechnologyNo

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Customer Reviews

Rating
Etymotic ER-4SR Studio Reference Earphone Quick Review by mark2410
by Mark2410 on 10/11/2016
Etymotic ER-4SR Studio Reference Earphone Quick Review by mark2410

Brief: The king is dead, long live the king!!!

Price: £330 or in the US US$350

Specifications: Frequency Response 20 Hz-16 kHz, Accuracy Score 4SR (92%), Transducers High performance balanced armature micro-drivers, Noise Isolation 35-42 dB, Impedance (@1 kHz) 4XR (45 Ohms), Sensitivity (@1 kHz), SPL at 0.1V 4XR (98 dB), Maximum Output (SPL) 122 dB, Cable 5 ft. Detachable, Warranty 2 years

Accessories: A bunch of tips and huge that case are mostly useless. Order a usable case and either some small olives or Comply’s when you buy them.

Build Quality: Ety’s had a stellar build quality reputation when they were plastic, these are now metal and will likely out live you.

Isolation: Ety’s are the kings of isolation, they are rated at up-to 42dB reduction. No other earphone or headphone can match them nor can any earplugs. The things you hear are because the sounds have travelled through your jaw rather than in your ears.

Microphonics: If you wear them up nothing but they are angled so you probably will want to wear down and the chin slider and shirt clip will help there.

Comfort/Fit: A contentious issue. The included tips all suck, pick up some small olives or Comply’s and then with a little lick for lubrication you can insert them. You will feel violated the first time you do this. However once you get used to the strangeness of it they are actually comfortable. I can wear them for hours and hours with no issues so long as I don’t have to repeatedly take them out. That is very wearing on the ear.

Aesthetics: They look not bad, though they sit entirely internally in use so who cares, no one can see them.

Sound: Well the old ER4 was the reference king. A paragon of neutrality and these are the same. They are slightly more easy to make sound their best as with the lower impedance over the ER-4S you can get a sound quality improvement if you insist on using an inadequate source. Yet I really wonder how many people did that? Were there many ER-4P users out there clamouring for the refinement of the S but weren’t willing to add in the impedance? Still if we ignore that then this is the same sound, in a slightly nicer housing. The old ER4 did look a bit naff and these look much more sleek. Of course since they are brain implants no one can actually see them in use sooooo, yeah who cares? Their audio is as it always has been, largely perfect. They are massively detailed, insanely detailed compared to the likes of most earphones. These are less devices to listen to music than they are an acoustic microscope made to analyse it. If you want all of the details, yey, you have found pretty much the perfect IEM with which to do so.

Note that they will expose all flaws so feed them crap at your own peril, they can ruin formerly loved tracks by exposing its flaws you hadn’t noticed before.

Value: Wallet ouchy but they are paragons. They are as reference grade as the old ER4 has been for decades and these will be for decades going forward. You want that, and something with a build that means you could do it with one pair, your wallets taking a short term pounding.

Pro’s: They are the ultimate in reference quality perfection. Ultimate isolation.

Con’s: The XR can do all these can but with a smidge more bass.

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