Who is the Sennheiser - HD 660S2 for?
Budget-tier headphone. The 61.4 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 16 measured specs against the transparent formula for the headphones category. No editorial picks, no paid placement.
Sennheiser - HD 660S2: advantages & disadvantages
Measured against every headphones we track, here is where the Sennheiser - HD 660S2 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.
- ▼Battery life: 0 h — among the weakest in the headphones category.
- ▼No Active noise cancellation — a feature most stronger headphones include.
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 size
- 38mm
- Battery life
- 0h
- Weight
- 260g
- Type
- over-ear
All specifications
Design
- Type
- over-ear
- Weight
- 260 g
- Water resistance
- none
Audio
- Driver size?
- 38 mm
- Sensitivity?
- 104 dB
- Transparency mode
- false
- Spatial audio?
- false
Battery
- Battery life
- 0 h
- Fast charge?
- false
Latest from the lab
All lab reports →Popular comparisons featuring the Sennheiser - HD 660S2
The 8 closest matchups in the Headphones category, sorted by Mars Score proximity — the fights most worth your time.
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Frequently asked
What is the Mars Score for Sennheiser - HD 660S2?+
Sennheiser - HD 660S2 scores 61.4 on the transparent Mars Score formula for headphones, computed from its published specs against the category's weighted normalization.
What category does Sennheiser - HD 660S2 belong to?+
Sennheiser - HD 660S2 is a Sennheiser headphone catalogued in the Headphones category.
When was Sennheiser - HD 660S2 released?+
Sennheiser - HD 660S2 was released on 2023-02-09.
What is the driver size of Sennheiser - HD 660S2?+
Sennheiser - HD 660S2 has a driver size of 38 mm.
What is the battery life of Sennheiser - HD 660S2?+
Sennheiser - HD 660S2 has a battery life of 0 h.
What is the weight of Sennheiser - HD 660S2?+
Sennheiser - HD 660S2 has a weight of 260 g.
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