Sennheiser
HD 660S2
Based on 74 Reddit mentions
$394.95
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Most discussed features
Sentiment summary across the product areas Reddit users mention most.
Reddit mentions
Original Reddit posts and comments behind this analysis.
HD 490 PRO or HD 660S2
I actually own both. Short answer: the HD 490 Pro is way more versatile. Comfort is the first big difference. The 490 has larger and deeper cups, lighter clamp, and just more space in general. For long sessions, especially with bigger ears, it’s noticeably easier to live with. Sound-wise, the 660S2
...Wuf_l in r/sennheiser
January 13, 2026 7:23 PM
11
My pet peeve about Youtube Headphone Revievers
I stopped listening to 90% of those reviewers when the HD 660S2 came out and they all said it was mid and inferior to the 650 and 600. It's one of my favorite headphones to date, has notably better transients, separation and imaging than either of those two, and it's the first one I'd reach for befo
...Dagger_323 in r/sennheiser
January 30, 2026 8:42 PM
10
Should I get HD490 PRO or HD660S2 after Audeze Maxwell
My vote is easily for the hd660s2. Own and game/listen to music for way too long everyday, I find myself reaching for the HD 660s2 no matter what. The 490 pros are a stellar can, and proof that Sennheiser can provide the perfect balance of consumer and mainstream in one cans tuning, with a great sou
...MischievousBanter in r/sennheiser
March 12, 2026 6:36 PM
8
This arrived today!
If it is not power enough you can make a combination with Zen can 3. A good and powerful combo for almost every pair of headphones. I use it with Sennheiser HD 660S2 and hifiman edition xs.
Efficient-World-6809 in r/iFiaudio
December 31, 2025 12:35 PM
7
Mon premier casque HI-FI, le Sennheiser HD 660S2 !
Me and my friend ChatGPT, we are fluent French speakers, hence this is what he said: "After so many years of using gaming headsets (Razer, Logitech..), I wanted to get a Hi-Fi headphone on the side to improve my music listening (and, to a lesser extent, for series/movies). Mission accomplished with
...Tenlow85 in r/sennheiser
September 20, 2025 6:34 PM
12
Desktop DAP, my endgame.
I love my CA1000T. I use it with y Sennheiser Hd660s2. Love your combo, too.
TextDear in r/DigitalAudioPlayer
May 10, 2026 4:32 PM
5
HD 600 or HD 660S2?
You'll probably really enjoy the 660S2's if the extra hundred isn't going to break the bank. I recently wrote a review between the 650's and 660S2's, not quite the same but if you're interested in a bit of a longer opinion about 660S2's.
WC_Dirk_Gently in r/sennheiser
December 22, 2025 12:03 AM
6
Sennheiser hd660s2 The problem I'm having
Hi there, I have IE 600 and HD 660S, and many other IEMs, and I also do music professionally. What you're describing can have multiple reasons, and I’d suggest just ignoring it. If you're unsure, you can always order another pair of HD 660S2 to compare, then send one unit back. First reason is that
...stanchenhhh in r/sennheiser
April 5, 2026 3:05 PM
5
Any open back Sennheiser better than the Beyerdynamic DT 1990 Pro MKII?
Personally 660S are better 600, higher resolution, a little bit more open, with preserved mid end. Same as with 660S2 being better 650s, higher resolution, a little more open, this time with less bass roll off (can actually hear the buss thump) and with preserved mods. Both S1 and S2 are definitely
...SomewhatOptimal1 in r/sennheiser
March 4, 2026 7:59 AM
5
should I get the HD650 or the HD660S2
Some great advice here in this thread. The HD 660S2 has a lower resonant frequency which offers deeper sub-bass and more impactful bass extension. This makes it more suitable for modern genres such as hip-hop, electronica and the like. The treble can be perceived as slightly more resolving with more
...sennheiserconsumer in r/sennheiser
October 1, 2025 12:12 PM
7