Click to view our Accessibility Statement or contact us with accessibility-related questions
Sennheiser HD 660 S2 Headphones
$599.95

Sennheiser HD 660 S2 Headphones

bookmark_border
$599.95
Ready to Ship
Members who purchase earn
6,000
Drop Rewards
Frequently bought together:
add
Massdrop x Sennheiser HD 6XX Headphones
add
ADV. Headphone Hanger

search
close
PeteMtl
446
Jun 23, 2023
I own many headphones from Sennheiser, Focal, Hifiman. Some of them are quite more expensive (Focal Clear MG, Sennheiser HD800S…). I don’t know if buying from Drop is the best deal around, sometimes it is, often it is not. I bought a few units on Drop including HD6XX, HD58X, O2 SDAC amp. I also own many others including HD600, HD598, HD25, ATH-M50X, Momentum 3, Momentum 4, Focal Bathys, PXC550II, Amperior, and more. I am simply going to affirm one thing: If I was forced to keep only one headphone, only one, then this would be it: the Sennheiser HD660S2. I’m not suggesting this is the best headphone, I’m saying it’s one of the few I could live with as the sole headphone I could keep. It sounds good with any music genre. It is compatible with most setups. Yes it needs a dedicated amp. No it is not the best headphone for travelling or for noise isolation, but I could live with this just one headphone and enjoy music. Regards. If I was allowed a second pair for outside/travelling Bluetooth use, then I would choose either the Sennheiser Momentum 4 (or the Focal Bathys, depending on budget available). Regards,
(Edited)
PeteMtl
446
Jan 17, 2024
The HD58X is a very good headphone considering its price. Compared to the HD6XX, it has more sub bass but is quite colder in the mids (HD58X have clearer but more nasal mids, not that magical mid timbre that HD6XX and HD650 are famous for) and has less high frequency (treble) energy. Compared to HD660S2, the HD58X is a less exciting headphone. HD660S2 has better sub bass, better bass, far better mids and more airy and exciting highs. But the HD660S2 is more than three times more expensive than the HD58X. I do not know any other open back headphone in the 150$ range that sounds better than the HD58X. I personally bought three pairs of HD58X: one that I use with portable equipment (its 150 ohms and great sensitivity makes it useable with iPhones, IPads, laptop computers and other devices without a dedicated headphone amp), one that I have bought as a present to my father in law (at 80 years old he just loves the HD58X, they sound clear and he can wear them for long periods without ear fatigue) and one pair for my teen boy (unfortunately he now prefers my Momentum 4 Bluetooth headphones and he borrows my pair as much as he can, may I blame him?). So bottom line the HD58X is a very good headphone available at a steal price (150$) and I do recommend it strongly. It has more sub bass than HD600 or HD6XX/650. But it doesn’t sound as good as either HD600, HD650/6XX or HD660S2 in my opinion. All of these are far more expensive however. There you have it, my honest opinion regarding the HD58X.
(Edited)
Balvender
0
Apr 9, 2024
PeteMtlDear sir, Namaste I have sennheiser momentum 4 headphones. Sir in HD 660s2 and momentum 4, what is the difference in the sound of these two. In HD 660 s2 can we listen to songs using on mobiles??? So should I buy HD 660 s2 headphone ? Or momentum 4 headphone are fine for me.. Sir What is your opinion..... Plz reply.... LOVE FROM INDIA....
somedude0608
42
May 12, 2023
This 100 off is an amazing sale price plus the points you get. I got them from Sennheiser at full price no points and still believe they were worth every penny. Snatch these up while you can gentleman.
(Edited)
MastiffMike
162
Jul 19, 2023
Yep. Contact support
Yeah, I would contact support, assuming that you were careful to match the thicker and thinner pins correctly with the bigger and smaller holes in the earcup.
DrEas
135
Jun 26, 2023
So Drop edits / removes the link that shows Amazon has same item, 1 day free shipping, and easier returns. Whatever Drop's policy (and the noted "Edited by moderator Jyri_Drop ?) to change the content. I've purchased many items from Drop but have concluded 1) they are rarely a deal, 2) their shipping costs are higher than any online retailer I've used, 3) their return policy is a MASSIVE HASSLE, 4) their rewards are generally not worth using. The one exception was when I purchased $700 Focal headphones (that later they Dropped the price to $500 but would not refund me the difference). I simply hope that shoppers are not deceived by Drop's euphemistic (deceptive?) offers/pricing. Hopefully, the consumer is careful and knows that they can almost always find the same item cheaper, faster, and with easier return processes. BUYER BEWARE and tell your friends.
stop the glazing bro its just a website
Jkross22
69
Feb 9, 2024
Meow!
bostonnyla
28
May 16, 2023
Cheaper in Amazon
bostonnyla
28
Sep 2, 2023
No , I was comparing to amazon's 50 dollars cheaper price
bostonnyla
28
Sep 2, 2023
No. I was not posting my thouhgt on only hatred on Drop. Visiting Drop is my daily routine because I love Drop. But recently I see some higher price than Amazon. This does not show "hate" on Drop. It is my hope to mortivate Drop to be more competitive than iother competitors. Even Shenzen, linsoul, hifigo are more attractive somehow. I just want Drop to be Drop as the same of old massdrop.
Wingapenw
4
Sep 25, 2023
Today these cans are $467.00 at Amazon. Why are you so much higher? Its apples to apples and you are much higher, especially with the free shipping and other Amazon extras that you do not have. And I really don't care about the points. I have bought many things in the past, but will no longer consider your products. I consider your policies deceptive and dishonest. BUYERS BEWARE!
Jkross22
69
Nov 10, 2023
This comment is worth standing and applauding for. Nicely done GuyinPittsburgh. Nicely done.
androidknee55
13
Feb 28, 2024
I'm in my 60's. I don't get giddy with delight anymore. Just give me the damn cans.
DrEas
135
Jun 13, 2023
And yet again... Amazon has the same item, same price, free shipping and far easier returns if you need. Get your Sennheiser HD 660 S2 Headphones faster and with free shipping. To think that Drop customers don't shop around is a misstep for Drop. And Drop's shipping costs are significant comparted to many online purchases. (mod edit: removed URL)
(Edited by moderator Jyri_Drop)
humidity
86
Jun 27, 2023
DrEasAlso 5% cash back with the Amazon credit card, which is an extra $25 in my pocket. Plus Amazon is currently (at time of post) giving 90 days free Amazon Music Unlimited with purchase to new subscribers, which is another $27 in value. Update: Prime Day had this on sale for $380.
(Edited)
Ealeonn
0
Mar 24, 2023
Are this just the standard version of the 660S2? If they are, why anybody getting these should get them from Drop? If they are not and are an actual Drop version, why that price?
Fayne
2587
Apr 20, 2023
Ahhh, looks like they saw that it wasn’t selling at 600 points and bumped it up.
Motorrad
2898
Jul 10, 2023
Sorry that reading and math are difficult for you. 😞 I would expect a little more from the nerds over in the keyboard club.
Fayne
2587
Apr 10, 2023
$6 off (via points) and a 2+ month wait? Sign me up.

/s Edit: Bumped to $60 in points. Less complaint. These are legit great cans from Sennheiser. I like them better than my HD58x, HD6xx, HD820, and HD8xx. The bass bump is no joke, plus I think they have a touch more clarity than the previous HD660. More important to me? They are back to 300Ω, which means any pure tube amp (transformer or OTL) you use them on will work flawlessly.
search

(Edited)
Thanks for the interesting info, I’ve played around with tubes but I feel like there’s always more to learn! Reducing microphonics sounds particularly attractive to me 😁 I’ll have to share about the Pearl HiFi heat sinks with some friends who are even more into tubes than I am, having recently made a big purchase of a Woo Audio amp while another friend is looking hard at some xDuoo amps.
V2Schneider
40
Jul 23, 2023
FayneOnly downside is that clamping force...again...bought it at Ebay for less..
Aznablerey
244
Mar 23, 2023
Aside from the obligatory “drop doesn’t mean good deals anymore” comment, I do want to say that these headphones are legitimately good. I’ve had the 58x, 6xx, 660s, in addition to a multitude of other brands and models. These are worth the price, no doubt about it. There is no genre I’ve thrown at them that they’ve not absolutely dominated. They sound natural with vocals and acoustic instruments as per the 600 line, but they have the extension down low to tackle synth bass. The “veil” isn’t there, either. Super clear. Plenty of people got worked up about the “unboxing experience” but frankly those are folks who spend more time watching YouTube than listening to music. If you have the 6xx- or even the og 660s, these are better imo. Are they worth replacing either of those? I can’t tell you that, money means different things to different people.
Aznablerey
244
Sep 6, 2023
Kerry_MaxwellThanks edit: I’ll add some thoughts to that thanks… measurements are good, but they don’t take personal preference into account. Some people love Hifiman. I think they’re all too harsh. So thank you for the information - which I’ve read, too- but the S2 isn’t leaving my stable any time soon, and I’ll stand by my comment that they out perform the 650/600/58x for one reason or another. Whether it be extension, soundstage, resolution or timbre, the S2 is the right mix for me. Objectively, however, it’s well documented that I’m a raging idiot.
(Edited)
efarkouh
26
Mar 20, 2023
Inb4 "wtf drop?! same price everywhere else smh. you used to be cool"
efarkouhIncludes $60.00 in Drop Rewards. You can't get that everywhere!
somedude0608
42
Mar 26, 2023
mattrisAgreed. I bought them early from sennheiser directly. Now i wish i waited and got the drop points along with the purchase i was already going to make.
Showing 78 of 84