'Studio Reference'

(Etymotic invented noise-isolating, in-ear earphones over 20 years ago. Etymotic’s original design, developed for auditory research and hearing testing,used balanced –armature drivers. The ER4 MicroPro series earphones were the first earphones commercialized using the balanced armature technology in a consumer earphone.)

Every pair of ER•4 earphones is an industry-exclusive channel-matching compliance graph, signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers.

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 a neutral-sounding earphone.

Review :


Features :

a. Backed by decades of research and development for the ear

b. World leader in sound reproduction

- Unsurpassed frequency response accuracy and sound quality — 92%+ response accuracy from 20 Hz – 16 kHz

c. Timeless style and fit

- Professional quality and reliability

- An assortment of noise-isolating eartips options to ensure proper seal and comfort

- CUSTOM•FIT option available

d. High noise isolation

- Reduction of outside noise reduces the risk of listening at unsafe levels

e. Best durability and warranty

- 2-year replacement warranty

- User-replaceable filters protect the balanced-armature drivers from ear wax

Specifications :

- Frequency Response : 20 Hz - 16 kHz

- Transducers : High performance, balanced armature micro-drivers

- Noise Isolation : 35-42 dB

- Impedance (@1kHz) : 45 Ohm

- Sensitivity (@1 kHz) SPL at 0.1v : 98 dB

- Maximum Output (SPL) : 122 dB

- Cable : 5 ft Detachable

- User Replaceable ACCU-Filters : Yes

- Warranty : 2 Years

- Custom-Fit Option : Yes

Accessories Included :


- Detachable, 5 ft. cord with 3.5mm gold plated stereo plug

- ¼” stereo phone adaptor

- Assortment of eartips

- Filter removal tool and replacement filters

- Shirt clip

- Zippered storage case

- Performance certificate (signed by the Etymotic engineer)

Write a review

Note: HTML is not translated!
    Bad           Good


  • Product Code: ER4SR
  • Availability: In Stock
  • Rp.4,600,000

Related Products



Features :- Cutting-edge engineering and robust construction- 40 mm drivers with rare earth magnets ..

Rp.1,100,000 Rp.1,355,000



'Professional Studio Monitor Headphone' This is the most critically acclaimed model in the ..

Rp.1,900,000 Rp.2,220,000



'Delivers detailed sound with enhanced bass' Evolved from personal monitor technology that'..


t-JAYS One

t-JAYS One

'Bringing your sound to life' t-JAYS One delivers great tonal detail and its deep, warm bass..


StageDiver 1

StageDiver 1

1-way system with impressive dynamics and linear reproduction across the entire frequency spectrum..




'Hybrid Earphone' Specifications : - Driver Type : Hybrid (Balanced Armature & 8 m..




Based in a small workshop in Tokyo Japan, FitEar crafts each IEM by hand to the very highest stan..

Rp.6,000,000 Rp.6,500,000

11 Neo

11 Neo

'Practical for on-the go' Neutral-sounding, good clarity Features : - Titanium Co..




'Extended Response'(Etymotic invented noise-isolating, in-ear earphones over 20 years ago. Etymot..




QP2R, the second generation of Questyle DAP, inherits Questyle’s quest and style. It keeps challeng..


Tags: Etymotic, USA