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Sennheiser Sennheiser HD 660S2

Sennheiser - headphones

Sennheiser HD 660S2

Sennheiser HD 660S2 is tracked as a headphones option for shoppers focused on open-back audiophile, home listening, detail.

Best for open-back audiophile, home listening, detail when the current US reference price is meaningfully below competing options.

Best for open-back audiophileBest for home listeningBest for detail

Score

8.6 / 10

Price

$399

Released

Feb 1, 2023

Data last verified Jun 29, 2026. Status: available.

Should you buy it?

A practical ownership call

  • Buy it if you want open-back audiophile and home listening.
  • Skip it if street pricing can change quickly.
  • Check current US street pricing before paying launch-level money.

North America availability

US availability

Sennheiser HD 660S2 is tracked as a US-market option through official brand channels and mainstream electronics retailers.

Canada note

Sennheiser HD 660S2 may be available in Canada through brand stores or major electronics retailers, but pricing should be checked separately in CAD.

Common retailers

Sennheiser, Amazon, Best Buy, Walmart, Target

Deal timing

holiday sales, travel season, back-to-school, Prime Day-style events

Use official Sennheiser warranty terms and the retailer return window as the baseline before buying in North America.

Price and availability notes

Specs source

Sennheiser official product materials and public North America launch documentation are used as editorial references.

Price source

Sennheiser US launch pricing and common North America street-price patterns are maintained as editorial USD references.

Image note

Local editorial SVG placeholder /images/products/sennheiser-hd-660s2.svg follows the /images/products/{slug}.{ext} naming convention and should be replaced only with permitted assets.

Buying scores

Noise Cancellation

9.1

Sound Quality

9

Comfort

8.3

Battery

8.2

Call Quality

7.9

Value

8.5

Pros

  • Good fit for open-back audiophile
  • Competitive when discounted in the US market
  • Useful alternative inside the headphones shortlist

Cons

  • Street pricing can change quickly
  • Does not replace higher-end options for demanding users

Who should skip it

Skip Sennheiser HD 660S2 if street pricing can change quickly, does not replace higher-end options for demanding users would affect your daily use. Compare the alternatives below before committing, especially if a neighboring product is discounted or better aligned with your ecosystem.

Specifications

Sennheiser HD 660S2 specifications
Type Open-back wired
Noise Cancellation Active noise cancellation
Battery Life Up to 30 to 60 hours
Charging USB-C charging
Bluetooth Codecs SBC, AAC, app-dependent codecs
Weight 180g to 290g
Water Resistance Not rated or splash resistant depending on model

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