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HiFiMan Arya Organic · Moss Green — Planar magnetic
HiFiMan

HiFiMan Arya Organic · Moss Green

Planar magnetic

92
/ 100
From $1,299
VS
Sennheiser HD 660S2 — Over-ear · 2023
Sennheiser

Sennheiser HD 660S2

Over-ear · 2023

92
/ 100
From $599
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, HiFiMan Arya Organic · Moss Green lands at 92 and Sennheiser HD 660S2 at 92. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick HiFiMan Arya Organic · Moss Green 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

Tie

Tuning, detail, and staging

Effectively tied — neither pulls a 2-point weighted lead.

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 $1,299).

HiFiMan Arya Organic · Moss Green 92
vs
92 Sennheiser HD 660S2

Score breakdown

HiFiMan Arya Organic · Moss Green
92
anc 0
sound 92
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 Arya Organic · Moss Green versus Sennheiser HD 660S2 — full spec comparison
Spec HiFiMan Arya Organic · Moss Green Sennheiser HD 660S2
Type
Planar magnetic
Over-ear
Release year
—
2023

HiFiMan Arya Organic · Moss Green

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 Arya Organic · Moss Green vs Sennheiser HD 660S2

Which is better, HiFiMan Arya Organic · Moss Green or Sennheiser HD 660S2? +

Both score 92 on our weighted rubric — tied. Your best pick depends on the sub-scores above.

Is HiFiMan Arya Organic · Moss Green worth the price? +

At $1,299, HiFiMan Arya Organic · Moss Green delivers a Specdex score of 92 — 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 Arya Organic · Moss Green 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 noise cancelling, HiFiMan Arya Organic · Moss Green or Sennheiser HD 660S2? +

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

Which is better for comfort, HiFiMan Arya Organic · Moss Green or Sennheiser HD 660S2? +

Sennheiser HD 660S2 — leads on comfort (91 vs 88). Long-session wearability.