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 below 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.
Pros and cons at a glance
- ▲Sensitivity: 123 dB.
- ▼Driver count: 1 (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
- 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
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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