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Etymotic ER-4PT microPro Earphones

Model: ER4PT

Etymotic ER-4PT microPro Earphones
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About: Etymotic ER-4PT microPro Earphones

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. The ER•4 MicroPro series earphones were the first earphones commercialized using this technology and are recognized as the world leader in response accuracy, to which all other earphones are compared. After more than 20 years, these reference-quality earphones are still the choice of serious sound engineers, audiophiles and musicians.

ER•4PT earphones are intended for sound engineers and audiophiles in constant motion. This model combines all of the acoustic characteristics and features of ER•4P earphones, and comes equipped with extra mobile adapters and accessories for traveling professionals. Included with every pair of ER•4PT earphones is an industry-exclusive channel-matching compliance graph, signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers.

Features:

  • World leader in sound reproduction
    • Unsurpassed frequency response accuracy and sound quality — 86%+ response accuracy from 20 Hz – 16 kHz
    • The only earphones with Accu•Driver™ 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 ACCU•Fit™ 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
    • Braid-reinforced cable for extremely low microphonic effect
    • ACCU•Filter™ user-replaceable filters protect the balanced-amature drivers from ear wax

Specifications:

  • Frequency Response: 20 Hz - 16 kHz
  • Accuracy Score: 4B (92%) 4S (92%) 4P (86%) 4PT (86%)
  • Transducers: balanced armature
  • Noise Isolation: 35-42 dB
  • Impedance (@1 kHz): 4B (100 Ohms) 4S (100 Ohms) 4P (27 Ohms) 4PT (27 Ohms)
  • Sensitivity (@1 kHz) SPL at 0.1V: 4B (90 dB) 4S (90 dB) 4P (102 dB) 4PT (102 dB)
  • Maximum Output (SPL): 122 dB
  • Cable: 5 ft
  • User Replaceable ACCU•Filters™
  • Warranty: 2 years

UPC: 084643000306

AVShop.ca is a Canadian authorized Etymotic Research retailer.

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