Etymotic Research ER4SR Studio Reference Earphones - Black
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Etymotic ER4-SR Studio Reference In-Ear Isolating Earphone with Replaceable Cable - Black. 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. Professional quality and reliability. Over 30 years ago, Etymotic invented noise-isolating, in-ear earphones. Etymotics original design, developed for auditory research and hearing testing, used balanced armature receivers and established these speakers as the gold standard for high-definition audio. ER4 earphones were the first high-fidelity, noise isolating earphones to use this technology in a consumer earphone and are recognized as the world leader in response accuracy against which all others are compared. The ER4SR modal delivers sound with greater output for a high-fidelity experience.
All features
| Colour | Black |
|---|---|
| Series | ER4 |
| Model Part Number | ER4SR |
| Brand | Etymotic Research |