Etymotic Research ER4XR Extended Response
Etymotic Research ER4XR Extended Response is a canonical In-Ears product in AudioList.
- Price: $290
- Retailer offers: 1
- Availability: In stock
- Measurement: No objective measurement linked yet
- Last updated: 2026-07-01T15:29:51.937157+00:00
Known Specs
- Driver type
- balanced_armature
- IEM type
- passive
- Impedance
- 45 ohms
- Sensitivity
- 122 dB
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