Who is the Sennheiser - IE 900 for?
Budget-tier in-ear monitor. The 66.4 score sits in C-tier (58–67) — the formula flags meaningful weaknesses against premium peers.
Reasonable if cost is the deciding factor and the spec weaknesses don’t matter for your use. Check the spec table carefully before buying.
Mars Score is computed from 6 measured specs against the transparent formula for the in-ear monitors category. No editorial picks, no paid placement.
Sennheiser - IE 900: advantages & disadvantages
Measured against every in-ear monitors we track, here is where the Sennheiser - IE 900 pulls ahead — and where it gives ground.
- ▲Sensitivity: 123 dB — among the best in-ear monitors we track.
- ▼Driver count: 1 — 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
- 16Ω
- Sensitivity
- 123dB
- Connector
- MMCX
All specifications
Drivers
- Driver count
- 1
- Driver types
- Dynamic (X3R)
- Sensitivity?
- 123 dB
Build
- Detachable cable
- true
- Connector
- MMCX
Latest from the lab
All lab reports →Popular comparisons featuring the Sennheiser - IE 900
The 12 closest matchups in the In-Ear Monitors category, sorted by Mars Score proximity — the fights most worth your time.
How Sennheiser - IE 900 fits the In-Ear Monitors field
Sennheiser - IE 900 is listed in the In-Ear Monitors catalog with a Mars Score of 66.4. It currently ranks 8 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
- 16 Ω
- Sensitivity
- 123 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 Sennheiser - IE 900?+
Sennheiser - IE 900 scores 66.4 on the transparent Mars Score formula for in-ear monitors, computed from its published specs against the category's weighted normalization.
What category does Sennheiser - IE 900 belong to?+
Sennheiser - IE 900 is a Sennheiser in-ear monitor catalogued in the In-Ear Monitors category.
When was Sennheiser - IE 900 released?+
Sennheiser - IE 900 was released on 2021-04-21.
What is the driver count of Sennheiser - IE 900?+
Sennheiser - IE 900 has a driver count of 1.
What is the impedance of Sennheiser - IE 900?+
Sennheiser - IE 900 has a impedance of 16 Ω.
What is the sensitivity of Sennheiser - IE 900?+
Sennheiser - IE 900 has a sensitivity of 123 dB.