Sennheiser
Sennheiser HD 650
Over-ear · 2003
90
/ 100
From $499
VS
Sennheiser
Sennheiser HD 660S
Open-back
90
/ 100
From $499
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Sennheiser HD 650 lands at 90 and Sennheiser HD 660S at 90. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Sennheiser HD 650 if…
- ✓Flagship comfort + ANC on modern models
- ✓Premium build
- ✓Active noise cancellation (most models)
Pick Sennheiser HD 660S if…
- ✓Reference-level detail
- ✓Well-regarded in audiophile community
- ✓Long-term ownership appeal
Sennheiser HD 650 90
vs 90 Sennheiser HD 660S
Score breakdown
Sennheiser HD 650
90 anc 88
sound 90
comfort 89
battery 82
features 86
Sennheiser HD 660S
90 anc 0
sound 90
comfort 88
battery 100
features 50
Specs side-by-side
| Spec | Sennheiser HD 650 | Sennheiser HD 660S |
|---|---|---|
| Type | Over-ear | Open-back |
| Release year | 2003 | — |
Sennheiser HD 650
Pros
- +Flagship comfort + ANC on modern models
- +Premium build
- +Active noise cancellation (most models)
Cons
- −Battery varies by codec
- −Some are Bluetooth-only
- −Price creep vs previous gen
Sennheiser HD 660S
Pros
- +Reference-level detail
- +Well-regarded in audiophile community
- +Long-term ownership appeal
Cons
- −Requires amplifier (most)
- −No active noise cancellation
- −Impractical for commuting
FAQ: Sennheiser HD 650 vs Sennheiser HD 660S
Which is better, Sennheiser HD 650 or Sennheiser HD 660S? +
Both score 90 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Sennheiser HD 650 worth the price? +
At $499, Sennheiser HD 650 delivers a Specdex score of 90 — strongest in sound.
Is Sennheiser HD 660S worth the price? +
At $499, Sennheiser HD 660S delivers a Specdex score of 90 — strongest in battery.
Does Sennheiser HD 650 or Sennheiser HD 660S last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.