Sennheiser
Sennheiser HD 660S2
Over-ear · 2023
92
/ 100
From $599
VS
HiFiMan Susvara wins by 4
HiFiMan
HiFiMan Susvara
Planar magnetic
96
/ 100
From $5,999
Specdex verdict
HiFiMan Susvara takes it — here’s why.
In our weighted Specdex score, Sennheiser HD 660S2 lands at 92 and HiFiMan Susvara at 96. That puts HiFiMan Susvara ahead by 4 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Sennheiser HD 660S2 if…
- ✓Flagship comfort + ANC on modern models
- ✓Premium build
- ✓Active noise cancellation (most models)
Pick HiFiMan Susvara if…
- ✓Reference-level detail
- ✓Well-regarded in audiophile community
- ✓Long-term ownership appeal
Sennheiser HD 660S2 92
vs 96 HiFiMan Susvara
Score breakdown
Sennheiser HD 660S2
92 anc 90
sound 92
comfort 91
battery 82
features 88
HiFiMan Susvara
96 anc 0
sound 96
comfort 88
battery 100
features 50
Specs side-by-side
| Spec | Sennheiser HD 660S2 | HiFiMan Susvara |
|---|---|---|
| Type | Over-ear | Planar magnetic |
| Release year | 2023 | — |
Sennheiser HD 660S2
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
HiFiMan Susvara
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 660S2 vs HiFiMan Susvara
Which is better, Sennheiser HD 660S2 or HiFiMan Susvara? +
HiFiMan Susvara scores 96 on our weighted rubric — ahead by 4. Your best pick depends on the sub-scores above.
Is Sennheiser HD 660S2 worth the price? +
At $599, Sennheiser HD 660S2 delivers a Specdex score of 92 — strongest in sound.
Is HiFiMan Susvara worth the price? +
At $5,999, HiFiMan Susvara delivers a Specdex score of 96 — strongest in battery.
Does Sennheiser HD 660S2 or HiFiMan Susvara 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.