Etymotic ER4SR Studio Reference In-Ear Earphones 入耳式隔音耳機

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  • Regular price HK$2,999.00


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Etymotic ER4SR Studio Reference In-Ear Earphones 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.

Etymotic ER4SR Studio Reference In-Ear Earphones feature:

  • Reference Standard
  • Metal bodies with anodized finish
  • Detachable Kevlar™ reinforced cables allows for easy replacement and customization

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

Best durability and warranty

  • 2-year replacement warranty
  • User-replaceable filters protect the balanced-armature drivers from ear wax
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類別 Type 高效平衡電樞動鐵單元 High performance, balanced armature micro-drivers
單元直徑 Driver Diameter
驅動單元 Magnet
頻率響應 Frequency Response 20 Hz ~ 16,000 Hz
靈敏度 Sensitivity 98 dB SPL @ 1 mW
隔音效果 Passive Noise Attenuation 35-42 dB
最大承受功率 Max. Input Power
最大輸出 Max. Output 122 dB
阻抗 Impedance 45 ohms @ 1 kHz
內置咪高峰 Built-in Microphone No
音量控制 Volume Control No
iOS控制 iOS Control No
導綫 Cable Detachable, 5 ft cord with 3.5 mm gold plated stereo plug
重量 Weight
插頭 Connector 1/8″ (right angle plug)
隨機附件 Accessories 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
顏色 Colour Black
保養 Warranty 2 years
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Etymotic Research, Inc. is an engineering-driven research, development and manufacturing company. The name "Etymotic" (pronounced "et-im-oh-tik.") means "true to the ear." Mead Killion, Ph.D. founded Etymotic Research in 1983 to design products that accurately assess hearing, improve the lives of those with hearing loss, protect hearing, and enhance the listening experience of musicians and music lovers everywhere.With deep roots in acoustic research and the hearing aid industry, Etymotic invented insert earphones in 1984. Etymotic's original earphone design used balanced armature receivers, which established these speakers as the gold standard for high definition in-ear earphones. The first versions were used for diagnostic testing and precision auditory research (ER-1, 2, 3). Etymotic produced the first noise-isolating high-fidelity in-ear earphone, the ER-4 (1991), which became the basis of all subsequent in-ear earphones and in-ear monitors worldwide, and created an entire category of consumer electronics. The ER-4 earphones are still produced and channel-balanced to within 1 dB in Etymotic's labs in the US.

With deep roots in acoustic research and the hearing aid industry, Etymotic invented insert earphones in 1984. Etymotic's original earphone design used balanced armature receivers, which established these speakers as the gold standard for high definition in-ear earphones. The first versions were used for diagnostic testing and precision auditory research (ER-1, 2, 3). Etymotic produced the first noise-isolating high-fidelity in-ear earphone, the ER-4 (1991), which became the basis of all subsequent in-ear earphones and in-ear monitors worldwide, and created an entire category of consumer electronics. The ER-4 earphones are still produced and channel-balanced to within 1 dB in Etymotic's labs in the US.

Innovation, education and hearing conservation are central to Etymotic's mission. Etymotic's products are used by scientists, hearing practitioners, hearing-impaired consumers, professional and amateur musicians, and others who insist on superior sound quality. Audio engineers, audiologists and musicians working together have generated over 100 patents issued and pending. A number of Etymotic's 60 employees are accomplished musicians. Etymotic Research is located in Elk Grove Village, Illinois.

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