About this gear
The ER4S represents the neutral reference standard of Etymotic's legendary ER4 series—a clinical-grade IEM designed for studio monitoring, hearing testing, and critical listening. Its precisely balanced presentation prioritizes transparency and accuracy over musicality, making it a benchmark tool for audio professionals and discerning purists who demand uncolored reproduction.
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...
Specifications
More from Etymotic
View all
Reviews (0)
No reviews yet. Be the first to review this gear.