About this gear
The ER3XR is an extended-treble variant of Etymotic's entry-level reference IEM, offering the same neutral foundation as its sibling with a lifted presence peak for enhanced clarity and air. At nearly half the price of the ER4SR, it provides remarkable accuracy for critical listeners on a budget.
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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