A/B comparison · Headphones
Sennheiser HD 660S vs Sennheiser HD 820
Specs from both manufacturer datasheets Updated Jan 1, 2024 Scored with 10 + 10 Amazon reviews
Sennheiser HD 660S vs Sennheiser HD 820 in brief
- Spec rows: Sennheiser HD 660S wins 1, Sennheiser HD 820 wins 1, 8 tied or not compared, of 10 rows.
- Our scores: Sennheiser HD 660S 8.3/10, Sennheiser HD 820 7.7/10.
- Sennheiser HD 660S wins: sound quality (9.4 vs 8.4), midrange clarity (9.2 vs 7.8), treble detail (8.8 vs 8.5), soundstage & imaging (9.1 vs 8.3), build quality (7.5 vs 6.2), comfort and fit (9.4 vs 8), value for money (7.9 vs 6.8).
- Sennheiser HD 820 wins: bass response (8.5 vs 8.3), noise isolation (6.5 vs 5.1).
- Who should buy which: Pick the Sennheiser HD 660S for sound quality, midrange clarity, treble detail, soundstage & imaging, build quality, comfort and fit and value for money. Pick the Sennheiser HD 820 if bass response and noise isolation matter most.
Channel A · Over-ear · 2017
Channel B · Over-ear · 2018
Rows won, of 10 compared Sennheiser 1 · Sennheiser 1 · tied or not compared 8
Datasheet · Side by side
Spec by spec
Built from both structured spec sheets. The delta chip sits on the winning side; rows with no defensible winner carry no chip.
Sound & drivers
Power, comfort, battery
Weight and battery figures come from each manufacturer datasheet; real world numbers vary with use.
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From our reviews
How it scored, paired
9 aspects, two channels
Each aspect is scored 0 to 10 in our reviews, against the rest of the class.
Availability
Where they stand on price
Sennheiser HD 660S
The Sennheiser HD 660S isn't sold new any more. The closest current model is the Sennheiser HD 660S2.
Why this one: Direct successor in the HD 660S line, same open back over ear design and driver size
Sennheiser HD 820
We do not show live prices; price tiers are our editorial categories. As an Amazon Associate, HiFi Specs earns from qualifying purchases. Our scores and comparisons are never influenced by affiliate partners.