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ItsSoCheap | Staff 7.5K Views
Oct 21, 2026 9:07 AM

Sennheiser HD 660S2 Wired Over-Ear Audiophile Stereo Headphones

$380

$680

44% off
+ Free S&H w/ Primeat Woot!
Visit Woot!
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Deal Details
Woot! has Sennheiser HD 660S2 Wired Over-Ear Audiophile Stereo Headphones on sale for $379.95. Shipping is free for Amazon Prime Members (must log in with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.

Thanks to Deal Hunter ItsSoCheap for sharing this deal.

About this product:
  • Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response
  • Airflow-optimised 42mm high-performance transducers with vented magnet system
  • Double sound pressure at lowest octaves including piano note at 27.5 Hz and bass drum kick
  • Open-back design offers exceptional breathability with plush ear cushions for long sessions
  • Frequency response of 8Hz - 41,500Hz with detachable long cables for desktop use

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • This offer is now priced less ($15.05) than our front page deal price of $395 from May 2026 which earned 25 thumbs up.
    • Our research indicates that this deal is $97.04 less (20% savings) than the next best available price from a reputable merchant with prices starting from $476.99 at the time of this post.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Woot! has Sennheiser HD 660S2 Wired Over-Ear Audiophile Stereo Headphones on sale for $379.95. Shipping is free for Amazon Prime Members (must log in with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.

Thanks to Deal Hunter ItsSoCheap for sharing this deal.

About this product:
  • Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response
  • Airflow-optimised 42mm high-performance transducers with vented magnet system
  • Double sound pressure at lowest octaves including piano note at 27.5 Hz and bass drum kick
  • Open-back design offers exceptional breathability with plush ear cushions for long sessions
  • Frequency response of 8Hz - 41,500Hz with detachable long cables for desktop use

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • This offer is now priced less ($15.05) than our front page deal price of $395 from May 2026 which earned 25 thumbs up.
    • Our research indicates that this deal is $97.04 less (20% savings) than the next best available price from a reputable merchant with prices starting from $476.99 at the time of this post.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

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6 Comments

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Oct 23, 2026 10:07 AM
295 Comments
Joined Oct 2023
NeatLumber905Oct 23, 2026 10:07 AM
295 Comments
In before somebody calls these "cans".
8
Oct 25, 2026 9:11 PM
554 Comments
Joined Dec 2015
Eguy5555309Oct 25, 2026 9:11 PM
554 Comments
Big fan of these cans.
Well-rounded sound signature that doesn't emphasize or change the mastering of the music much, but is elevated above Beats or AirPods and sounds good with anything. Best sub bass in the HD 600 series.

I don't know if I prefer the first HD 660S though... that one had less bass, so it sounded more like a halfway point between an HD 650 or HD 800S (and no glare in the treble), but it was also less picky about what you'd plug it into and still get a "full" sound.

Anyway, good headphones
1
1
Oct 27, 2026 4:07 AM
39 Comments
Joined Sep 2018
FawkinChit2Oct 27, 2026 4:07 AM
39 Comments
No idea if these cans are any good but I have heard good things.
1
Oct 27, 2026 4:57 AM
1.1K Comments
Joined Oct 2005
Irons82Oct 27, 2026 4:57 AM
1.1K Comments
How do these cans compare to the good ole' Jubilee HD580?
1
Oct 27, 2026 10:14 AM
3.2K Comments
Joined Nov 2012
Shockwav3Oct 27, 2026 10:14 AM
3.2K Comments
Should I grab these cans or black Friday can deals?
1
Pro
Oct 27, 2026 1:49 PM
393 Comments
Joined Nov 2017
teknower
Pro
Oct 27, 2026 1:49 PM
393 Comments
Aune ar3000 are out now. No point in getting any other open backs in this price range. https://youtu.be/0dtmWgRgIVA?is=eRGFHMy5it_NGJMo
1

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