Who is the Sennheiser - HD 660S2 for?
Entry-tier headphone. 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 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.
- ▼No Active noise cancellation — a feature most stronger headphones include.
- ▼Battery life: 0 h — among the weakest in the headphones 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 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
- Fast charge?
- false
Latest from the lab
All lab reports →Popular comparisons featuring the Sennheiser - HD 660S2
The 12 closest matchups in the Headphones category, sorted by Mars Score proximity — the fights most worth your time.
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How Sennheiser - HD 660S2 fits the Headphones field
Sennheiser - HD 660S2 is listed in the Headphones catalog with a Mars Score of 51.2. It currently ranks 25 of 25 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 size
- 38 mm
- Battery life
- 0 h
- Weight
- 260 g
- Type
- over-ear
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 size, battery life, weight. 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 - HD 660S2?+
Sennheiser - HD 660S2 scores 51.2 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.