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Sennheiser HD 660S2 · Moss Green — Over-ear · 2023
Sennheiser

Sennheiser HD 660S2 · Moss Green

Over-ear · 2023

92
/ 100
From $599
VS
Focal Clear MG — Open-back
Focal

Focal Clear MG

Open-back

92
/ 100
From $1,499
Specdex verdict

Dead heat — it comes down to priorities.

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

Pick Sennheiser HD 660S2 · Moss Green if…

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

Pick Focal Clear MG if…

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

ANC strength for commute and travel

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

Comfort

Sennheiser HD 660S2 · Moss Green

Long-session wearability

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

Value for money

Sennheiser HD 660S2 · Moss Green

Specdex score per dollar at MSRP

Sennheiser HD 660S2 · Moss Green more score per dollar ($599 vs $1,499).

Sennheiser HD 660S2 · Moss Green 92
vs
92 Focal Clear MG

Score breakdown

Sennheiser HD 660S2 · Moss Green
92
anc 90
sound 92
comfort 91
battery 82
features 88
Focal Clear MG
92
anc 0
sound 92
comfort 88
battery 100
features 50

Specs side-by-side

Sennheiser HD 660S2 · Moss Green versus Focal Clear MG — full spec comparison
Spec Sennheiser HD 660S2 · Moss Green Focal Clear MG
Type
Over-ear
Open-back
Release year
2023
—

Sennheiser HD 660S2 · Moss Green

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

Focal Clear MG

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 · Moss Green vs Focal Clear MG

Which is better, Sennheiser HD 660S2 · Moss Green or Focal Clear MG? +

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

Is Sennheiser HD 660S2 · Moss Green worth the price? +

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

Is Focal Clear MG worth the price? +

At $1,499, Focal Clear MG delivers a Specdex score of 92 — strongest in battery.

Does Sennheiser HD 660S2 · Moss Green or Focal Clear MG 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, Sennheiser HD 660S2 · Moss Green or Focal Clear MG? +

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

Which is better for comfort, Sennheiser HD 660S2 · Moss Green or Focal Clear MG? +

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