Who is the Sennheiser - HD 660S2 for?
Budget-tier headphone. The 64.2 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 16 measured specs against the transparent formula for the headphones 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.
- ▼Battery life: 0 h (below category average).
- ▼Active noise cancellation — not supported.
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
- 42mm
- Battery life
- 0h
- Weight
- 260g
- Type
- over-ear
All specifications
Design
- Type
- over-ear
- Weight
- 260 g
- Water resistance
- none
Audio
- Driver size?
- 42 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
Top 8 closest matchups in the Headphones category. Sorted by Mars Score proximity — these are the fights most worth your time.
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