Who is the Etymotic - ER4XR for?
Entry-tier in-ear monitor. Below 58 on the Mars Score means several weighted specs trail the category leaders by a wide margin.
Only consider if there's a specific reason — price, brand loyalty, ecosystem fit. The best in-ear monitors page will show what your money buys at a higher tier.
Mars Score is computed from 6 measured specs against the transparent formula for the in-ear monitors category. No editorial picks, no paid placement.
Pros and cons at a glance
No spec lands in the top quartile of the category normalization window. Strengths sit in untracked specs (build quality, ecosystem, etc.) rather than weighted axes.
- ▼Driver count: 1 (below category average).
- ▼Sensitivity: 98 dB (below category average).
Pros are specs scoring ≥75% of the category normalization range. Cons are ≤35%. Derived from the Mars Score formula — no hand-curated lists.
At a glance
- Driver count
- 1
- Impedance
- 45Ω
- Sensitivity
- 98dB
- Connector
- MMCX
All specifications
Drivers
- Driver count
- 1
- Driver types
- Balanced Armature
- Sensitivity?
- 98 dB
Build
- Detachable cable
- true
- Connector
- MMCX
Latest from the lab
All lab reports →Popular comparisons featuring the Etymotic - ER4XR
Top 8 closest matchups in the In-Ear Monitors category. Sorted by Mars Score proximity — these are the fights most worth your time.
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