Current Price $679.95
Color: Black
Free 90-day returns
Sold and shipped by Sennheiser
Details & care
Enjoy your music on a completely new level. An intimate, relaxed sound signature combines with outstanding precision and exceptional comfort.
- Natural, relaxed, high-fidelity sound with extra sub bass: Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response and an intimate sound with great timbre
- Airflow-optimised 42mm high-performance transducers: Improved ventilation due to a uniquely powerful vented magnet system for minimal distortion and air displacement control through steel mesh damping
- Double the sound pressure at the lowest octaves: You can feel the lowest note on the piano (27.5 Hz) or the kick of the bass drum (45-60 Hz) as if you were there, at the recording studio
- Exceptional comfort and build quality: The open-back design offers exceptional breathability and the plush ear cushions deliver maximum comfort - for long listening sessions
- Outstanding quality designed in Germany, made in Ireland: With a frequency response of 8 Hz - 41,500 Hz and detachable, long cables for comfortable desktop use
- Item #11207313
Shipping & returns
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This item has a different return policy. Items sold and shipped by Sennheiser can be returned by mail or to a Nordstrom store within 90 days of when the item shipped and must be in new condition, with tags attached. We can’t accept returns for this item at Nordstrom Rack.
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Most helpful positive review
Dec 28, 2025
Good Headphones
I love the headphones, they had amazing clarity and range, there was nothing wrong with the audio.
Sky123
Reposted from Sennheiser
Most helpful critical review
Jan 22, 2024
Not the upgrade it is purported to be
Touted as the upgrade to the HD 650, but it's more like the upgrade to the HD 58X from Drop.
Doesn't have any of the midrange magic of the 6 series, has meaningfully brighter and harsher treble, and is significantly more expensive. Looks incredible (love the colorway) but sonically it's a miss for me across the board.
listener6x0
Reposted from Sennheiser
5 stars
81%
4 stars
15%
3 stars
0%
2 stars
4%
1 star
0%
Pros:
Cons:
Current reviews don’t mention any.Sort by Most Helpful
Color
jmc
Reposted from Sennheiser
Jan 23, 2026
Good, not great
The bass is lacking. I really feel like something is missing.
Sky123
Reposted from Sennheiser
Dec 28, 2025
Good Headphones
I love the headphones, they had amazing clarity and range, there was nothing wrong with the audio.
Vincent
Reposted from Sennheiser
Dec 12, 2025
Beautiful music!
I'm totally satisfied with the headphone. Well built and comfortable to wear. The vivid sound stage and meticulous details of replayed music are highly enjoyable. Not strong in dynamics but the beautiful music, particularly of jazz and vocalist, more than makes up for it.
Jazzman
Reposted from Sennheiser
Dec 5, 2025
Cool upgrade from my HD650 pair
Compared to my old HD650 pair these new 660S2 cans are more appealing - the old ones were great but boring, these have some cool style and the accurate sub bass will help mixing, these are ustill neutral and flat enough to use seriously for judging the tonal characteristics of a mix
AntSlappy
Reposted from Sennheiser
July 8, 2025
AntSlappy’s HD 660S2 mods
I pulled out the black foam in the middle/inside of each “can” and got a WAY BETTER CABLE and WAY BETTER EAR PADS!!! Now these sound/perform WAY BETTER THAN STOCK!!!
SonicFlash
Reposted from Sennheiser
June 20, 2025
Incredible sound!!
I absolutely love these headphones. Paired with the right DAC and Amp they make magic happen!!!
