In-Ear Monitors · Balanced armature
Etymotic ER3XR
All Etymotic · MSRP $250
Single balanced-armature in-ear monitor with anodized aluminum shells and a detachable MMCX cable. It is the bass-extended tuning of Etymotic's ER3 pair, sharing its drivers with the flat-tuned ER3SE.
Specifications
| Frequency response | 20 Hz – 16 kHz |
| Sensitivity | 102 dB/mW |
| Impedance | 22 Ω |
As stated by the manufacturer — not community data.
Will it drive? · On paper
Plays straight from a phone
A phone or laptop reaches full listening level. An amp is a choice, not a requirement.
| Needs, for 110 dB peaks | 0.37 V · 6.3 mW |
| Phone or laptop (≈0.70 V, 20 mW) | Enough |
| Dongle DAC/amp (≈2.0 V, 120 mW) | Enough |
Worked out from the stated 102 dB/mW and 22 Ω — not a listening test.
Community score
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