Buy Etymotic Research ER4SR Studio Reference Earphones in United States - Cartnear.com
Etymotic Research ER4SR Studio Reference Earphones
CTNR104100 0846430002012 CTNR104100Etymotic
2025-11-21
/itm/etymotic-research-er4sr-studio-reference-earphones-104100
USD
323.35
$ 323.35 $ 329.95
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Over 30 years ago, Etymotic invented noise-isolating, in-ear earphones. Etymotic’s original design, developed for auditory research and hearing testing, used balanced armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones. ER4 earphones were the first high-fidelity, noise isolating in-ear earphones to use this technology in a consumer earphone, and are recognized as the world leader for response accuracy to which all other earphones are compared.The ER4SR modal delivers sound accuracy with greater output for a high fidelity experience.
