Sennheiser
Sennheiser HD 660S
Open-back
90
/ 100
From $499
VS
Bose
Bose QuietComfort Headphones
Over-ear · 2023
90
/ 100
From $349
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Sennheiser HD 660S lands at 90 and Bose QuietComfort Headphones at 90. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Sennheiser HD 660S if…
- ✓Reference-level detail
- ✓Well-regarded in audiophile community
- ✓Long-term ownership appeal
Pick Bose QuietComfort Headphones if…
- ✓Flagship comfort + ANC on modern models
- ✓Premium build
- ✓Active noise cancellation (most models)
Sennheiser HD 660S 90
vs 90 Bose QuietComfort Headphones
Score breakdown
Sennheiser HD 660S
90 anc 0
sound 90
comfort 88
battery 100
features 50
Bose QuietComfort Headphones
90 anc 88
sound 90
comfort 89
battery 82
features 86
Specs side-by-side
| Spec | Sennheiser HD 660S | Bose QuietComfort Headphones |
|---|---|---|
| Type | Open-back | Over-ear |
| Release year | — | 2023 |
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
Bose QuietComfort Headphones
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
FAQ: Sennheiser HD 660S vs Bose QuietComfort Headphones
Which is better, Sennheiser HD 660S or Bose QuietComfort Headphones? +
Both score 90 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Sennheiser HD 660S worth the price? +
At $499, Sennheiser HD 660S delivers a Specdex score of 90 — strongest in battery.
Is Bose QuietComfort Headphones worth the price? +
At $349, Bose QuietComfort Headphones delivers a Specdex score of 90 — strongest in sound.
Does Sennheiser HD 660S or Bose QuietComfort Headphones 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.