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Sennheiser HD 660S Open-Back Audiophile Headphones High-Resolution Wired

hibiki_01_japan
(1043)
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US $278.99
ApproximatelyC $379.15
or Best Offer
Condition:
Used
“Please check the photos for the condition of scratches etc.”
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Located in: Nara, Japan
Delivery:
Estimated between Mon, Jul 7 and Mon, Jul 21
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
60 days return. Seller pays for return shipping.
Payments:
     Diners Club

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eBay item number:156945311840
Last updated on Jun 21, 2025 18:36:53 EDTView all revisionsView all revisions

Item specifics

Condition
Used
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller Notes
“Please check the photos for the condition of scratches etc.”
Brand
Sennheiser
Form Factor
Headband
Type
Ear-Cup (Over the Ear)
Number of Earpieces
Double
Color
Black
Model
Sennheiser HD 660S2
Connectivity
3.5mm Jack6.35 mm (1/4 in)
MPN
508826
Features
Adjustable HeadbandDetachable CableOpen Back
Country/Region of Manufacture
Romania
Suitable For
Studio Monitoring
UPC
NA

Item description from the seller

About this seller

hibiki_01_japan

99.2% positive feedback•3.5K items sold

Joined Jul 2021
Thank you for coming to see my store!I live in Japan .We ship products from Japan to the world. We will pack it carefully!The delivery method is DHL, FEDEX, Japan Post.Please be as slow as time ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
4.9

Seller feedback (1,026)

All ratings
Positive
Neutral
Negative
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Card came packaged nicely. Seller made it a point to make sure that my card was handled with the most care possible. They communicated with me the entire length of the transaction so I knew what was going on with it step by step. Would definitely buy from them again in the future!
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Packaging was excellent. Shipping was fast. Item listed was a different PSA number, but contacted me quickly to apologize and gave me the correct number, which I verified, and was OK with.
  • *****- Feedback left by buyer.
    Past month
    Verified purchase
    Good seller. Condition as described. Good value. Package was well packed and prompt delivery.
See all feedback

Product ratings and reviews

Learn more
4.9
24 product ratings
  • 22 users rated this 5 out of 5 stars
  • 2 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Good sound quality

Comfortable

Lightweight

Most relevant reviews

See all 23 reviews
  • by argus_wares
    Nov 25, 2022Top favourable review

    Superb!

    Excellent headphone. Attenuate a couple of treble bumps and boost subbass a pinch and it is an HD600 killer and superb monitoring/mixing/mastering headphone. Superb entry-level high-end can for casual listening, too, with that warm, thick, finely nuanced, and organic Sennheiser house sound. If you want more resolution than HD600 but none of HD650's character, this baby should do it for you. Aside from that, comfort is supreme. The build quality doesn't seem up to par with HD650, though, but still better than most cheaper headphones. Placement of sounds is sharper and clearer than HD650 and HD600, though not by much. This is no K702 and HD800 killer, however. It's high impedance demands you have at least a Schiit stack for best results, or you are better off with cheaper, low-impedance ...

    Verified purchase: YesCondition: Pre-OwnedSold by: juicyburger1

  • by manew914
    Mar 02, 2022

    One of the best options on the market for entry level audiophile headphones.

    My setup consists of these HD600s run to a fiio K3 then to my MacBook Pro streaming from tidal. This setup has served me very well, and the clarity achieved by these headphones is incredible. I’m relatively new to audiophile equipment, but I can truly say these are the best I’ve used so far. If you’re looking for entry level equipment at a reasonable price, these are your best bet.

    Verified purchase: YesCondition: NewSold by: oscasanche-818

  • by pca986
    Jan 07, 2024

    My new favorite pair of headphones.

    Impressive and impactful natural bass. Excellent clarity and detailed sound. Broad soundstage. Light weight and comfortable for extended use. I use a small battery operated headphone amp to insure adequate power. It seems to work fine with this setup. Very impressed.

    Verified purchase: YesCondition: RefurbishedSold by: sennheiserconsumeraudio

  • by garkor8
    Aug 17, 2024

    it is a great headphone. I have Sennheis...

    it is a great headphone. I have Sennheiser HD 600. But this one exceeds 600 in many aspects. the Quality of the sound, of course, is the first and main. You feel as if you can hear every, even the shortest and slightest, of the sound. Absolute satisfaction. But do not forget to amplify these effects with good sound's application

    Verified purchase: YesCondition: NewSold by: oasis-nyc

  • by elijamarro
    Feb 05, 2024

    Amazing headphones

    Amazing headphones, bought a decent dac with it for the mean time and man, I was talking about them for days, and still am they have changed the way I have heard audio in such a long time, also hearing things you never hear is also crazy. Thanks for the amazing headphones.

    Verified purchase: YesCondition: Pre-OwnedSold by: zwjrben

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