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 this if there is a specific reason — price, brand loyalty, ecosystem fit. The best-of page shows what your money buys a tier up.
Mars Score is computed from 6 measured specs against the transparent formula for the in-ear monitors category. No editorial picks, no paid placement.
Etymotic - ER4XR: advantages & disadvantages
Measured against every in-ear monitors we track, here is where the Etymotic - ER4XR gives ground.
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 — among the weakest in the in-ear monitors category.
- ▼Sensitivity: 98 dB — among the weakest in the in-ear monitors category.
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
The 12 closest matchups in the In-Ear Monitors category, sorted by Mars Score proximity — the fights most worth your time.
How Etymotic - ER4XR fits the In-Ear Monitors field
Etymotic - ER4XR is listed in the In-Ear Monitors catalog with a Mars Score of 39.7. It currently ranks 19 of 19 products in this category by Mars Score.This page is most useful when you match the product's strongest measurable specifications to your own workload instead of treating one number as a universal recommendation.
Key specifications to check
- Driver count
- 1
- Impedance
- 45 Ω
- Sensitivity
- 98 dB
- Connector
- MMCX
Values are shown exactly as stored in the current catalog. A dash means the value is not available; it is not a zero and is not treated as a win or loss.
Who should consider it?
Start with the priorities represented by driver count, impedance, sensitivity. Buyers who value those dimensions should compare this product against the closest same-category alternatives below, then verify regional pricing, warranty, and configuration before purchase.
Closest alternatives
Frequently asked
What is the Mars Score for Etymotic - ER4XR?+
Etymotic - ER4XR scores 39.7 on the transparent Mars Score formula for in-ear monitors, computed from its published specs against the category's weighted normalization.
What category does Etymotic - ER4XR belong to?+
Etymotic - ER4XR is a Etymotic in-ear monitor catalogued in the In-Ear Monitors category.
When was Etymotic - ER4XR released?+
Etymotic - ER4XR was released on 2016-04-20.
What is the driver count of Etymotic - ER4XR?+
Etymotic - ER4XR has a driver count of 1.
What is the impedance of Etymotic - ER4XR?+
Etymotic - ER4XR has a impedance of 45 Ω.
What is the sensitivity of Etymotic - ER4XR?+
Etymotic - ER4XR has a sensitivity of 98 dB.