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Home/Sennheiser HD 660S2
Sennheiser HD 660S2 official product image
Sennheiser HD 660S2 official product image 1
Sennheiser HD 660S2 official product image 2
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Product imagery sourced from Sennheiser.

Sennheiser

Sennheiser HD 660S2

Editorial Summary

Refined open-back audiophile headphone with a natural, balanced sound signature.

OVER EAROver-Ear HeadphonesLOW latencyMSRP $499.95
Audiophiles seeking a reference-quality home listenerMusic enthusiasts with a headphone amplifierVocal and acoustic music appreciation
Current best tracked price$399.95 at Amazon

Best For

  • Audiophiles seeking a reference-quality home listener
  • Music enthusiasts with a headphone amplifier
  • Vocal and acoustic music appreciation

Not Ideal For

  • On-the-go or commute listening
  • Open offices or shared spaces
  • Users without an external DAC/amp

Strengths

  • Natural, balanced tonality adored by audiophiles
  • Improved bass response over HD 660S
  • Lightweight and comfortable at 260g
  • Hand-matched driver pairs for consistency
  • Durable build with replaceable cable and pads

Weaknesses

  • High price for a wired-only headphone
  • Open-back leaks sound — no isolation
  • No wireless or Bluetooth option
  • Needs a decent source/amp to shine
  • Limited availability compared to mass-market options

Product Gallery

Source imagery normalized for fast side-by-side review of finish, fit, and case details.

Sennheiser HD 660S2 official product image 1
Sennheiser HD 660S2 gallery image 1
Sennheiser HD 660S2 official product image 2
Sennheiser HD 660S2 gallery image 2
Sennheiser HD 660S2 official product image 3
Sennheiser HD 660S2 gallery image 3
Sennheiser HD 660S2 official product image 4
Sennheiser HD 660S2 gallery image 4

Specifications

Category
Over-Ear Headphones
Form Factor
OVER EAR
Active Noise Cancellation
No
Transparency Mode
No
Multipoint Support
No
Foldable
No
Carrying Case Included
No
Glasses Friendly
Yes
Latency Profile
LOW
Weight
260 g
MSRP
$499.95
Release Year
2022
Release Date
10/1/2022

Key Features

Dual Termination
Includes 6.35mm and 4.4mm balanced cables
Hand-Matched Drivers
Paired transducers for channel balance consistency
Open-Back Design
Expansive, natural soundstage for home listening
Velour Ear Pads
Breathable replaceable pads for comfort

Additional Details

Weight
260g
Impedance
300 ohms
DriverSize
42mm
BatteryLife
N/A (wired only)
FrequencyResponse
8Hz-41.5kHz
NoiseCancellation
None (open-back design)

Product Resources

Links to the product, spec, manual, firmware, and support surfaces we track for this model.

Official Pages

Official product pageEnjoy your music on a completely new level. An intimate, relaxed sound signature combines with outstanding precision and exceptional comfort — and now, extended sub bass — for a deeply moving experience. The extremely precise yet non-fatiguing sound of the HD 660S2 delivers even more impact with extended sub bass. WithSennheiser

Scores

Active Noise Cancellation
0.0Below Average
review-consensus
Comfort
88.0Great
review-consensus
Battery Life
0.0Below Average
review-consensus
Microphone Quality
0.0Below Average
review-consensus
Sound Quality
93.0Excellent
review-consensus
Portability
25.0Below Average
review-consensus
Price / Value
70.0Good
review-consensus

Where to Buy

AmazonBest Price
$399.95
In stock
Free delivery
Buy Now

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Alternatives

Anker Anker Soundcore Space OneBest budget ANC over-ear with LDAC, long battery, and surprisingly effective noise cancellation.Apple Apple AirPods MaxPremium build quality with seamless Apple ecosystem integration and excellent ANC.Audio-Technica Audio-Technica ATH-M20xBTUltra-affordable wireless monitor headphone with exceptional 60h battery and clean Audio-Technica sound.

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