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About this gear
The ER4P is Etymotic's warmer variant within the ER4 series, voiced with a gentler bass response and softer presence peak for extended listening comfort while retaining the series' legendary midrange accuracy. Originally designed for portable use, it bridges the gap between clinical monitoring and everyday musicality without straying from the reference philosophy.
About Etymotic
American hearing research company founded in 1983 by Dr. Mead Killion in Elk Grove Village, Illinois. Etymotic literally means 'true to the ear' — their ER4 series defined the concept of reference IEM tuning, adhering to the diffuse-field target response with scientific precision. Known for deep-ins...
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