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HiFiMan Susvara — Planar magnetic
HiFiMan

HiFiMan Susvara

Planar magnetic

96
/ 100
From $5,999
VS
HiFiMan Susvara wins by 4
Sennheiser HD 660S2 — Over-ear · 2023
Sennheiser

Sennheiser HD 660S2

Over-ear · 2023

92
/ 100
From $599
Specdex verdict

HiFiMan Susvara takes it — here’s why.

In our weighted Specdex score, HiFiMan Susvara lands at 96 and Sennheiser HD 660S2 at 92. That puts HiFiMan Susvara ahead by 4 points — a narrow margin driven mostly by its strengths in the categories below.

Pick HiFiMan Susvara if…

  • ✓Reference-level detail
  • ✓Well-regarded in audiophile community
  • ✓Long-term ownership appeal

Pick Sennheiser HD 660S2 if…

  • ✓Flagship comfort + ANC on modern models
  • ✓Premium build
  • ✓Active noise cancellation (most models)
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Sound quality

HiFiMan Susvara

Tuning, detail, and staging

HiFiMan Susvara leads on sound (96 vs 92).

Noise cancelling

Sennheiser HD 660S2

ANC strength for commute and travel

Sennheiser HD 660S2 leads on anc (90 vs 0).

Comfort

Sennheiser HD 660S2

Long-session wearability

Sennheiser HD 660S2 leads on comfort (91 vs 88).

Value for money

Sennheiser HD 660S2

Specdex score per dollar at MSRP

Sennheiser HD 660S2 more score per dollar ($599 vs $5,999).

HiFiMan Susvara 96
vs
92 Sennheiser HD 660S2

Score breakdown

HiFiMan Susvara
96
anc 0
sound 96
comfort 88
battery 100
features 50
Sennheiser HD 660S2
92
anc 90
sound 92
comfort 91
battery 82
features 88

Specs side-by-side

HiFiMan Susvara versus Sennheiser HD 660S2 — full spec comparison
Spec HiFiMan Susvara Sennheiser HD 660S2
Type
Planar magnetic
Over-ear
Release year
—
2023

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

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

FAQ: HiFiMan Susvara vs Sennheiser HD 660S2

Which is better, HiFiMan Susvara or Sennheiser HD 660S2? +

HiFiMan Susvara scores 96 on our weighted rubric — ahead by 4. Your best pick depends on the sub-scores above.

Is HiFiMan Susvara worth the price? +

At $5,999, HiFiMan Susvara delivers a Specdex score of 96 — strongest in battery.

Is Sennheiser HD 660S2 worth the price? +

At $599, Sennheiser HD 660S2 delivers a Specdex score of 92 — strongest in sound.

Does HiFiMan Susvara or Sennheiser HD 660S2 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.

Which is better for sound quality, HiFiMan Susvara or Sennheiser HD 660S2? +

HiFiMan Susvara — leads on sound (96 vs 92). Tuning, detail, and staging.

Which is better for noise cancelling, HiFiMan Susvara or Sennheiser HD 660S2? +

Sennheiser HD 660S2 — leads on anc (90 vs 0). ANC strength for commute and travel.