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N3RD_01 4.3K Views
Aug 16, 2025 3:39 PM

New (Open-box) Sennheiser HD 660S2 Wired Audiophile Stereo Headphones Free Shipping $349.99

$350

$480

27% off
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(NEW) Sennheiser HD 660S2 Wired Audiophile Stereo Headphones - Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil

Condition New; Open Box
(That's how Woot has the condition listed, I am just as confused if its New or Open Box.

https://sellout.woot.com/offers/n...s-open-box
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Deal Details
Community Notes
About the Poster
(NEW) Sennheiser HD 660S2 Wired Audiophile Stereo Headphones - Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil

Condition New; Open Box
(That's how Woot has the condition listed, I am just as confused if its New or Open Box.

https://sellout.woot.com/offers/n...s-open-box

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Aug 16, 2025 11:13 PM
1.8K Comments
Joined May 2006
ric0suaveAug 16, 2025 11:13 PM
1.8K Comments
Not much difference compared to the (mass)Drop HD6xx.
1
Aug 17, 2025 12:35 AM
164 Comments
Joined Apr 2025
MaziRoddy999Aug 17, 2025 12:35 AM
164 Comments
Quote from ric0suave View quoted comment :
Not much difference compared to the (mass)Drop HD6xx.
Thanks for the clarification. I own 2x HD 599 SE's which I've been told are very similar to the (mass)Drop HD6xx.
Aug 17, 2025 2:11 AM
2 Comments
Joined Feb 2025
HonestRoute197Aug 17, 2025 2:11 AM
2 Comments
Quote from ric0suave View quoted comment :
Not much difference compared to the (mass)Drop HD6xx.
Are these good, great, amazing? Been using iem moon drop crinacle dusk or something like that curious about getting a headset
Aug 17, 2025 3:11 AM
1.8K Comments
Joined May 2006
ric0suaveAug 17, 2025 3:11 AM
1.8K Comments
Quote from HonestRoute197 View quoted comment :
Are these good, great, amazing? Been using iem moon drop crinacle dusk or something like that curious about getting a headset
If you pair these with an headphone amp they sound quite good. Keep in mind these are 300 ohm.
Aug 17, 2025 8:29 PM
1.4K Comments
Joined Nov 2009
TNFergusAug 17, 2025 8:29 PM
1.4K Comments
Quote from HonestRoute197 View quoted comment :
Are these good, great, amazing? Been using iem moon drop crinacle dusk or something like that curious about getting a headset
My opinion: there is no comparison between any IEM and a good pair of headphones.When you wear your IEM... gently push in on both of them. See how the bass improves? You're being robbed of that bass that you would hear with headphones.
1
Aug 17, 2025 8:50 PM
23 Comments
Joined Dec 2021
LivelyRiver4275Aug 17, 2025 8:50 PM
23 Comments
Quote from HonestRoute197 View quoted comment :
Are these good, great, amazing? Been using iem moon drop crinacle dusk or something like that curious about getting a headset
These are good, nowhere near near great. Ignoring audiophile hyperbole, they sound equal to Google nest speakers.
2

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