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Sennheiser HD 650 — Over-ear · 2003
Sennheiser

Sennheiser HD 650

Over-ear · 2003

90
/ 100
From $499
VS
Sennheiser HD 660S2 · Moss Green wins by 2
Sennheiser HD 660S2 · Moss Green — Over-ear · 2023
Sennheiser

Sennheiser HD 660S2 · Moss Green

Over-ear · 2023

92
/ 100
From $599
Specdex verdict

Sennheiser HD 660S2 · Moss Green takes it — here’s why.

In our weighted Specdex score, Sennheiser HD 650 lands at 90 and Sennheiser HD 660S2 · Moss Green at 92. That puts Sennheiser HD 660S2 · Moss Green ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Sennheiser HD 650 if…

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

Pick Sennheiser HD 660S2 · Moss Green 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

Sennheiser HD 660S2 · Moss Green

Tuning, detail, and staging

Sennheiser HD 660S2 · Moss Green leads on sound (92 vs 90).

Noise cancelling

Sennheiser HD 660S2 · Moss Green

ANC strength for commute and travel

Sennheiser HD 660S2 · Moss Green leads on anc (90 vs 88).

Comfort

Sennheiser HD 660S2 · Moss Green

Long-session wearability

Sennheiser HD 660S2 · Moss Green leads on comfort (91 vs 89).

Value for money

Sennheiser HD 650

Specdex score per dollar at MSRP

Sennheiser HD 650 more score per dollar ($499 vs $599).

Sennheiser HD 650 90
vs
92 Sennheiser HD 660S2 · Moss Green

Score breakdown

Sennheiser HD 650
90
anc 88
sound 90
comfort 89
battery 82
features 86
Sennheiser HD 660S2 · Moss Green
92
anc 90
sound 92
comfort 91
battery 82
features 88

Specs side-by-side

Sennheiser HD 650 versus Sennheiser HD 660S2 · Moss Green — full spec comparison
Spec Sennheiser HD 650 Sennheiser HD 660S2 · Moss Green
Type
Over-ear
Over-ear
Release year
2003
2023

Sennheiser HD 650

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

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

FAQ: Sennheiser HD 650 vs Sennheiser HD 660S2 · Moss Green

Which is better, Sennheiser HD 650 or Sennheiser HD 660S2 · Moss Green? +

Sennheiser HD 660S2 · Moss Green scores 92 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

Is Sennheiser HD 650 worth the price? +

At $499, Sennheiser HD 650 delivers a Specdex score of 90 — strongest in sound.

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.

Does Sennheiser HD 650 or Sennheiser HD 660S2 · Moss Green 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, Sennheiser HD 650 or Sennheiser HD 660S2 · Moss Green? +

Sennheiser HD 660S2 · Moss Green — leads on sound (92 vs 90). Tuning, detail, and staging.

Which is better for noise cancelling, Sennheiser HD 650 or Sennheiser HD 660S2 · Moss Green? +

Sennheiser HD 660S2 · Moss Green — leads on anc (90 vs 88). ANC strength for commute and travel.