Sennheiser HD 660S2
Launched Mar 2023 · Wired
Usual price₹30,989
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Usual price ₹30,989 · launch price ₹54,990
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Score breakdown
Superb mids, fuller bass than HD 600; treble a bit shy
Open-back: no isolation
Balanced and plain cables, replaceable parts; needs an amp, no mic
No microphone
Light and plush; firm clamp at first
Each part is rated on one scale for every earbud and headphone, from lab test measurements where they exist, what reviewers found, specs and owner reports. It rates the product itself, not how good it is for the price.
Pros
- Good, natural sound with a little more low end than before
- Very comfortable for hours once the fit is right (comfort 9.7/10)
- Replaceable cables and pads, balanced cable included
- Outstanding mids and vocals
- Easy-going, smooth presentation
- Light and plush, very comfortable
- Controlled, punchy bass and wide, coherent stage
Cons
- Tuning won't please bass or treble lovers
- No isolation at all and leaks sound
- Expensive for what it adds
- Bass lacks punch and tightness
- Rivals dig out more detail and dynamics
- Needs a proper amp, not a phone
- Treble rolled off, little sparkle
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SoundGuysDec 2024
Good, slightly bassier take on the HD 660S for quiet home listening; not worth it if you already own an HD 600 or 660S.
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What Hi-FiMay 2023
Smooth, relaxed listen with a superb midrange; soft bass and modest dynamics keep it off five stars. Sound 4, build 5, comfort 5.
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Expert ReviewsMar 2023
A solid choice for open-back home listening with punchy, detailed sound, held back by a shy treble.
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Digital TrendsFeb 2023
Recommended for critical listening: rich, open and detailed with fuller bass than most open-backs.
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HeadfonicsSep 2023
A competitive mid-tier open-back after its price cut; wants a well-powered (tube) amp.
Full specs
| Drivers | 38 mm dynamic |
|---|---|
| Hi-Res audio | No |
| Spatial audio | No |
| Equaliser | None |
| ANC | No |
|---|---|
| Transparency / ambient mode | No |
| Wireless charging | No |
|---|
| Multipoint (two devices at once) | No |
|---|---|
| Quick pairing | No |
| Wired option | two detachable 1.8 m cables (6.35 mm unbalanced and 4.4 mm balanced, 2-pin plugs at both cups) plus 6.35-to-3.5 mm adapter |
| App | No |
| Weight | 260 g |
|---|---|
| Controls | none |
| In-ear detection | No |
| Foldable | No |
| Warranty | 2 years |
|---|---|
| Colours | Black |
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