AI-generated approximation — not official manufacturer imagery.

ER4-XR

Name: Etymotic Research ER4-XR
Brand: Etymotic Research

Etymotic Research

HeadphonesIn-Ear Headphones

Estimated price (community-sourced)

$130 - $310

Around — community and catalog average, updates slowly

About the ER4-XR

The Etymotic Research ER4-XR is a high-end in-ear monitor designed for audiophiles and music enthusiasts. It features a single Balanced Armature (BA) driver, which provides accurate sound reproduction without the complexity of crossovers. The ER4-XR is known for its extended bass response, offering a slight rise in bass frequencies compared to its counterpart, the ER4SR. The earphones are crafted from CNC-machined anodized aluminum, ensuring durability and a sleek design. They offer excellent passive noise isolation, with attenuation ranging from 35 to 42 dB, depending on the ear tips used. The ER4-XR includes a user-replaceable cable for improved longevity and durability.

Specifications

Key Specifications

Sensitivity: 98 dB

Impedance: 45Ω

Frequency: 20-16000 Hz

Full structured specifications are available to members.

ER4-XR

About the ER4-XR

Specifications

Key Specifications

See the full picture as a member