Sennheiser

Sennheiser - HD 660 S

Open-back Headphones


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Tenure Interest% Installment Interest
3 14% ₹ 13,642 ₹ 937
6 14% ₹ 6,940 ₹ 1,649
9 14% ₹ 4,707 ₹ 2,369
12 14% ₹ 3,591 ₹ 3,097
18 14% ₹ 2,476 ₹ 4,578
24 14% ₹ 1,920 ₹ 6,091
Tenure Interest% Installment Interest
3 13% ₹ 13,620 ₹ 870
6 13% ₹ 6,920 ₹ 1,530
9 14% ₹ 4,707 ₹ 2,369
12 14% ₹ 3,591 ₹ 3,097
18 15% ₹ 2,495 ₹ 4,916
24 15% ₹ 1,939 ₹ 6,546
Tenure Interest% Installment Interest
3 13% ₹ 13,620 ₹ 870
6 13% ₹ 6,920 ₹ 1,530
9 13% ₹ 4,687 ₹ 2,197
12 13% ₹ 3,572 ₹ 2,872
18 15% ₹ 2,495 ₹ 4,916
24 15% ₹ 1,939 ₹ 6,546
Tenure Interest% Installment Interest
3 13% ₹ 13,620 ₹ 870
6 13% ₹ 6,920 ₹ 1,530
9 15% ₹ 4,726 ₹ 2,541
12 15% ₹ 3,609 ₹ 3,323
18 15% ₹ 2,495 ₹ 4,916
24 15% ₹ 1,939 ₹ 6,546
Tenure Interest% Installment Interest
3 15% ₹ 13,665 ₹ 1,004
6 15% ₹ 6,960 ₹ 1,768
9 15% ₹ 4,726 ₹ 2,541
12 15% ₹ 3,609 ₹ 3,323
18 15% ₹ 2,495 ₹ 4,916
24 15% ₹ 1,939 ₹ 6,546
Tenure Interest% Installment Interest
3 12.50% ₹ 13,609 ₹ 836
6 12.50% ₹ 6,910 ₹ 1,471
9 13.50% ₹ 4,697 ₹ 2,283
12 13.50% ₹ 3,581 ₹ 2,984
18 13.50% ₹ 2,467 ₹ 4,409
Tenure Interest% Installment Interest
3 12.99% ₹ 13,620 ₹ 869
6 13.99% ₹ 6,940 ₹ 1,648
9 13.99% ₹ 4,706 ₹ 2,367
12 13.99% ₹ 3,590 ₹ 3,095
18 14.99% ₹ 2,495 ₹ 4,912
24 14.99% ₹ 1,939 ₹ 6,541
Tenure Interest% Installment Interest
3 13% ₹ 13,620 ₹ 870
6 13% ₹ 6,920 ₹ 1,530
9 13% ₹ 4,687 ₹ 2,197
12 12% ₹ 3,553 ₹ 2,647
18 12% ₹ 2,439 ₹ 3,906
24 12% ₹ 1,882 ₹ 5,189
Tenure Interest% Installment Interest
3 12% ₹ 13,597 ₹ 802
6 12% ₹ 6,900 ₹ 1,411
9 14% ₹ 4,707 ₹ 2,369
12 14% ₹ 3,591 ₹ 3,097
18 15% ₹ 2,495 ₹ 4,916
24 15% ₹ 1,939 ₹ 6,546
Tenure Interest% Installment Interest
3 13% ₹ 13,620 ₹ 870
6 14% ₹ 6,940 ₹ 1,649
9 15% ₹ 4,726 ₹ 2,541
12 15% ₹ 3,609 ₹ 3,323
18 15% ₹ 2,495 ₹ 4,916
24 15% ₹ 1,939 ₹ 6,546
Tenure Interest% Installment Interest
3 14% ₹ 13,642 ₹ 937
6 14% ₹ 6,940 ₹ 1,649
9 14% ₹ 4,707 ₹ 2,369
12 14% ₹ 3,591 ₹ 3,097
Tenure Interest% Installment Interest
3 13% ₹ 13,620 ₹ 870
6 13% ₹ 6,920 ₹ 1,530
9 14% ₹ 4,707 ₹ 2,369
12 14% ₹ 3,591 ₹ 3,097
Tenure Interest% Installment Interest
3 13% ₹ 13,620 ₹ 870
6 13% ₹ 6,920 ₹ 1,530
9 14% ₹ 4,707 ₹ 2,369
12 14% ₹ 3,591 ₹ 3,097
18 15% ₹ 2,495 ₹ 4,916
24 15% ₹ 1,939 ₹ 6,546
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7 Day Replacement Guarantee Info

7 Day Replacement Guarantee

All products are covered by the Headphone Zone 7 Day Replacement Guarantee. This product is eligible for a free replacement in case you receive a damaged, defective or different item.

Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement.

Please note that physical damage cases need to be brought to our notice within 24 hours.

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2 Years Manufacturer's Warranty Info

Warranty & Service

This product is covered by Sennheiser's 2 Year Warranty against manufacturing defects. The Authorised service partner for all warranty claims in India is Sennheiser India.
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Designed in
Germany

Balanced Sound
Signature

2 Years of
Warranty

Ideal for
Audiophiles

Ideal for
Movies and TV

Open-Back
Design

Dynamic
Drivers

Needs
Amplification

Replaceable
Cables

DESCRIPTION

SUPREME IN STYLE AND IN SOUND

The Sennheiser HD 660S has an eye catching new matte black and anthracite design. It looks classically elegant with some hints of contemporary influence. It is truly a symbol of sophistication.

Headphone-Zone-Sennheiser-HD-660-S

LIGHT ON WEIGHT, HIGH ON COMFORT

With High Quality Sound, the HD 660S also gives you High Comfort. In spite of its strong build, this pair is very lightweight. The elliptical ear cups are shaped according to the anatomy of the ear and sit perfectly over your ears giving you superior comfort. With comfortable earpads and its open construction, you can listen to music on these for hours on the trot.

Headphone-Zone-Sennheiser-HD-660-S
Headphone-Zone-Sennheiser-HD-660-S
Headphone-Zone-Sennheiser-HD-660-S
Headphone-Zone-Sennheiser-HD-660-S

RICH, INTRICATE SOUND WITH WELL-DEFINED BASS

The HD 660S has exceeded its predecessor HD 650 in terms of the sound output. With a crisp and defined bass, clear mids and pleasantly natural treble, it offers an exceptional soundstage response. You hear every detail and expression of the songs you play that takes you on a completely different journey full of emotions altogether.

Headphone-Zone-Sennheiser-HD-660-S

INNOVATIVE TRANSDUCER TECHNOLOGY

Built with the new Transducer Design, The HD 660S offers a much better performance as compared to the HD 650. It is engineered with a specially manufactured stainless steel fabric attached to the diaphragm that facilitates better control of the diaphragm movements. Moreover, extremely light aluminum voice coils ensure the highest impulse fidelity. The transducers are carefully selected and paired by hand to ensure consistently narrow (±1 dB) tolerances.

Headphone-Zone-Sennheiser-HD-660-S
Headphone-Zone-Sennheiser-HD-660-S

EASE OF CONNECTIVITY

The HD 660S is much more versatile as it can deliver reference-class sound when connected to hi-res mobile players even with its lower impedance.

Headphone-Zone-Sennheiser-HD-660-S

SPECS

AUDIO SPECIFICATIONS
TRANDUCER PRINCIPLE Dynamic, open
IMPEDANCE 150 Ω
SENSITIVITY 104 dB
THD < 0,04%
FREQUENCY RESPONSE 9 – 41,000 Hz
CONTACT PRESSURE 6.0 N ± 1 N
CONTROLS & CONNECTIVITY
WIRED CONNECTIVITY 3.5mm Input
CONNECTOR 6.35 mm / 4.4 mm Pentaconn
MICROPHONE No
COMPATIBILITY Universal
DESIGN & BUILD
WEARING STYLE Over-Ear (Circumaural)
COLOR matte black
CABLE LENGTH 3m
WEIGHT 260 g
IN THE BOX
BOX CONTENTS 1. Sennheiser HD 660s Headphones
2. 1 x 1/4" (6.35mm) Stereo Jack Plug
3. 1 x 4.4mm Pentaconn Stereo Jack
4. 1 x 1/4" (6.35mm to 3.5mm) Jack Adapter
5. Storage Box
6. Instruction Manual

COMPARISONS

Sennheiser - HD 660 S vs competitors
Sennheiser - HD 660 S Sennheiser - HD 660 S vs competitors
₹ 39,990/-

Shure - SRH 1840vs competitors
Shure - SRH 1840 Shure - SRH 1840 vs competitors
₹ 41,999/- ₹ 47,500/-

Beyerdynamic - DT 1990 PROvs competitors
Beyerdynamic - DT 1990 PRO Beyerdynamic - DT 1990 PRO vs competitors
₹ 47,990/- ₹ 59,389/-

iBasso - SR2vs competitors
iBasso - SR2 iBasso - SR2 vs competitors
₹ 39,999/-

Warranty
Sound Signature
Balanced
Balanced
Flat
Balanced
Design Open Back Open Back Open Back Open Back
Wearing Style Over-Ear Over-Ear Over-Ear Over-Ear
Frequency Response 10Hz-41kHz 10Hz-30kHz 5Hz-40kHz 3Hz-40kHz
Cable 3m straight cable 2m straight cable 3m straight cable 1.8m straight cable
Replaceable Parts
Impedance 150Ω 65Ω 250Ω 24Ω
Best for Studio Monitoring/Casual Listening Studio Monitoring/Casual Listening Audiophiles Casual Listening
In The Box 1x Sennheiser HD 660s Headphones
  1x 1/4" (6.35mm) Stereo Jack Plug
   1x 4.4mm Pentaconn Stereo Jack
   1x 1/4" (6.35mm To 3.5mm) Jack Adapter
   1x Storage Box
1x SRH1840 Headphones
  1x Two Detachable Cables
   1x Replacement Velour Ear Pads
   1x Threaded 1/4" Gold-Plated Adapter
   1x Hard Zippered Case
Beyerdynamic - DT 1990 PRO Headphones
  Two Pairs Of Velour Ear Pads
  Two Pairs Of Cables(3 M Straight And Coiled Cable)
  Premium Hard Case
IBasso - SR2 Headphones
   Jack 3.5mm Cable
   Jack 3.5mm To Jack 6.35mm Cable Earpads
   Carrying Case
Experts Verdict "Sennheiser has created an entirely new transducer for the HD 660 S, which is said to have lower harmonic distortion and produce an even more natural, uncolored sound."
The Verge
"Shure has a winner on its hands; we can’t praise the 1840s enough. This is a wonderfully musical pair of headphones that comfortably justify their price."
What Hi-Fi
"Beyerdynamic’s implementation of their Tesla design also shows technical prowess. The DT1990 PRO kick fast, woo with speed and attack and top it off with great separation and fine details."
Headfonics

FAQ

WARRANTY & MEDIA REVIEWS

2 Year Warranty

Don't sweat it, this Sennheiser HD 660 S comes with a 2 year warranty from Sennheiser that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about Sennheiser's warranty in India.

YouTube Reviews

Watch the most popular YouTube reviews for the Sennheiser - HD 660 S

Customer Reviews

Based on 9 reviews
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(9)
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S
SYED MAHAMMED RAFI (Hyderabad)
LOVING THIS

Once again thanks to Headphone Zone. Loving this very much. More clarity after 6 months. Great Head Phones SENHEISER. What a natural Sound. If you got a proper DAC & AMP it will be more fun with natural instrumental sounds and thumpy Bass (not much but enjoyable). Worth the Headphones.

S
SYED MAHAMMED RAFI (Yakutpura)
EXCELLENT MUSIC

I reviewing this once again after unboxing. Really a good package, for this thanks to Headphone Zone for a good package and very fast delivery. I am not a audiophile, but these headphones are rocking. Without DAC/amp its sounds good when connected to my TV & PC. With mobile it's really needs a DAC/Amp. Waiting for my XD-05, after that I will mesmerize with these headphones. Without thinking go for these. These are good Headphones. And Headphone Zone, you are awesome. Go Ahead

Hey Syed, we're so glad to know that you loved the product. Thank you so much for the detailed review this will surely be a great help for the others!

J
Jash Kothari (Mumbai)
Amaze

These headphones from Sennheiser are totally worth the asking price. Vocal and Imaging kings. If you are looking for a lot of bass, I think you should look at the DT 1770 PRO probably. But for vocal focused music there's nothing that comes close in this price range.
These can be run from a good laptop and even a good high end phone in my opinion. They reach a suitable volume at 80% on my Samsung S10+. But I am sure that a good DAC/AMP will increase the capability of these headphones. An amp might even increase the bass response of these headphones. I didnt take them off on the first 4 days after I got them!!!

Straight fire headphones for Rock and Pop

S
SYED MAHAMMED RAFI (Yakutpura)
GREAT DELIVERY

Oh, thanks Headphone zone, just received my order within 2 days, I am in journey excited to see the product, after unboxing I update my review. Waiting for my Headphone ampp xd-05 now. Great delivery thank u so much. Giving stars without seeing the package. Call received that my package arrived at home.

Hey Syed, we hope that you will love the product even more and we know you will for sure!

P
Pulkit Chugh (Delhi)
An immersive experience!!

Well, i have so many things to say about the HD660s. It has an immersive sound experience where it is also easy to drive. The inclusion of a 4.4mm balanced cable is a icing on the cake in the package. The sound has a deep quick bass, lush vocals with beautiful natural tonality, and brilliant staging too. Previously I had owned hd6xx and was not satisfied with its veiled dark signature. Believe me as a user of both, the HD660s is a brilliant pair and will satisfy your needs easily.

r
ravivikram Sukumar (Chennai)

Sennheiser - HD 660 S

M
Monali Guchait (Siliguri)

Sennheiser - HD 660 S

K
Kiaan Brahma (New Delhi)
Impressive Open Back Headphones

In short, these are amazing Open Back Headphones that blew my mind when I purchased them long back. It was my second open back headhone after a Grado that I purchased long back in 2010.

Open back headphones may not be the best for daily usage and you need to be a quiet environment to really enjoy so I did not plan to buy anymore but after a friend gave me a demo of these headphones in his house, I took the plunge to buy them. I purchased them pre-pandemic and in a way, I managed to get most of them as its an ideal headphone for home usage and long hours without any strain.

These headphones sound amazing in every Genre of music you throw and its will not disappoint you come what may. This is the headphone that I can assure will make your listening experience shift to a new dimension. The immersion you get with these headphones will just keep you hooked to these pair of cans.
The sound signature that you get can be what is slightly on the darker side and may not sound as bright as many headphones but in no ways it causes any issues as with some time, you find a charm in the sound signature.
The only issue that I can indicate is that you need a proper Amplifier to really get the best of these headphones. Plug it to your phone or laptop, you will still enjoy it 95% but to get the best, a good amplifier is needed. I use with a DAC/AMP combo and once you give it the power, these will just blow you away.

If can afford just one good pair of headphones, then buy these and its hard to go wrong with these

We are incredibly grateful that you took the time out to leave us this detailed review!

M
Mohit Devarakonda (Hyderabad)
HD 660 S

Delivery: Amazing, got the package 1 day before.
Headphone Packaging: The HD 660 S comes in a premium box.
Headphone Sound: 10/10 Would recommend for gaming, songs, movies, etc... pretty much anything. For serious gamers, the only tweak I would suggest is to tune the EQ to reduce the lower frequencies <30 to 500 Hz> by a couple of points and leave the rest of the mid and upper frequencies as it is.
Only Con: This is rather a minor nitpick. The clamping force is slightly on the higher side, but it gets reduced over time.

Hey Mohit, we are pleased to see your positive feedback! thanks for sharing this honest and detailed feedback with us.

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