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.
Been trying to figure out sleep earbuds as a side sleeper. Harder than I expected tbh
My Experience with A30 and Other Gear as a Side Sleeper I wanted to share my perspective on the Soundcore A30 and a few other setups I’ve tested, as I also struggle with being a light sleeper. Soundcore A30 (ANC & Comfort): I agree that the ANC isn't as powerful as high-end commuter earbuds. However
...Radiant_apo660602 in r/sleepheadphones
April 29, 2026 12:13 PM
3
HD800S vs HDB630: Can wireless hang?
Tubes do help the HD 800 S, it becomes more "HD 650-like" by adding some warmth and taking the edge off in the treble. Though it's a much "Softer" presentation than the HD 650 below 4kHz, as shown below. Though, the maintenance needed to upkeep tube amps can be annoying if you're used to solidstate.
...SilentIyAwake in r/sennheiser
March 14, 2026 4:21 PM
2
What headphone disappointed you at first...then grew on you?
From Sennheiser? Honestly, no headphone disappointed me at first but I came to like it after. In fact, with three of them it was the opposite. I liked them at first but came to dislike them later: Those were the Momentum 4, the HD 560S, and the HD 660S2. I immediately loved the HD 600, HD 650, HD 58
...SilentIyAwake in r/sennheiser
May 12, 2026 3:26 PM
1
Sennheiser HD 660S2 and FiiO BTR17
I don't think the FiiO BTR17 has enough juice to drive the Sennheiser HD 660S2 since they're super power-hungry. That's exactly why I keep mine at home on a proper desktop setup. But if it sounds good to you, enjoy it, man!
Jesslyn48 in r/sennheiser
April 21, 2026 1:32 AM
1
Recommendation Needed: Gift to Hubs
If its a closed back, get the Fiio FT1 for great Bass.Open back? Get the Sony Mdr Mv1, or Sennheiser hd550, Mv1 for more bass.The Hd660s2 will add warmth to music which he may not like.For a Dac Amp, I'd recommend a Fosi K7, or the Fiio K7. Edit: There's also the Sennheiser hd490 pro, which is very
...shadow18715 in r/HeadphonesAdvice
April 24, 2026 6:00 AM
1
hd660s2 vs hd650 vs 600
Just another 2 cents: for me the price difference between the 660s2 and the 600 was like 180 euros. Since the 600 were praised so well in general by many, I figured that 660s2 wasn’t worth those extra costs, although I understood from Sennheiser that they are build with way more complex technology.
The_Zoltan in r/sennheiser
March 29, 2026 7:58 PM
1
DAC/amp for HD660s2 under $250
Yup. In my experience, unless you have a pair of actually power-hungry headphones (and it's a short list!), you won't hear a big difference between a $9 dongle and a VERY expensive stack. The 660S2 isn't THAT hard to drive; even with a North American Apple dongle and an iPhone, I listen around 60% o
...Daemonxar in r/sennheiser
April 11, 2026 8:45 PM
1
Should I get HD490 PRO or HD660S2 after Audeze Maxwell
The 660S2 will be more different than the Maxwell. However, I recommend getting the cheaper(and in my opinion, better) HD 600 if you want the best Sennheiser headphone for music. It easily sounds the most "Natural" and "Real" and "Normal" yet still "Lush" out of any Sennheiser in my opinion, even th
...SilentIyAwake in r/sennheiser
March 12, 2026 8:26 PM
1
Headphones primarily for music, 200-250 range?
Save some shekels and buy the Philips Fidelio X2HR instead. Its got a much wider soundstage than the Sennheiser HD660s2 and when it was released (the OG) it was deemed better than alot of 400€ headphones at the time.
Successful_Banana_88 in r/HeadphonesAdvice
April 29, 2026 2:00 AM
0
HD 490 PRO or HD 660S2
I would. They are different in tuning for sure, so the experience is very different. But overall I would probably never use any of the Sennheisers if I had the XV. I have Arya Stealth which is even further from the Sennheisers tuning. Found it very hard to enjoy the closed in and muddied feeling of
...Denkmal81 in r/sennheiser
January 13, 2026 7:37 PM
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