Sennheiser - HD 660S2
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3
Low Cost EMI
₹ 10,264
₹ 803
₹ 647
6
Low Cost EMI
₹ 5,234
₹ 1,414
₹ 1,144
9
15.99%
₹ 3,558
₹ 2,033
12
15.99%
₹ 2,721
₹ 2,661
18
15.99%
₹ 1,885
₹ 3,939
24
15.99%
₹ 1,468
₹ 5,248
HDFC Bank
3
Low Cost EMI
₹ 10,264
₹ 803
₹ 647
6
Low Cost EMI
₹ 5,234
₹ 1,415
₹ 1,144
9
16%
₹ 3,558
₹ 2,035
12
16%
₹ 2,721
₹ 2,662
18
16%
₹ 1,885
₹ 3,941
24
16%
₹ 1,468
₹ 5,252
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3
Low Cost EMI
₹ 10,273
₹ 828
₹ 666
6
Low Cost EMI
₹ 5,219
₹ 1,326
₹ 1,068
9
15%
₹ 3,544
₹ 1,905
12
15%
₹ 2,707
₹ 2,492
18
16%
₹ 1,885
₹ 3,941
24
16%
₹ 1,468
₹ 5,252
Axis Bank
3
Low Cost EMI
₹ 10,264
₹ 803
₹ 647
6
Low Cost EMI
₹ 5,234
₹ 1,415
₹ 1,144
9
16%
₹ 3,558
₹ 2,035
12
16%
₹ 2,693
₹ 2,323
18
16%
₹ 1,885
₹ 3,941
24
16%
₹ 1,468
₹ 5,252
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Citi Bank
3
14%
₹ 10,231
₹ 702
6
14%
₹ 5,204
₹ 1,236
9
16%
₹ 3,558
₹ 2,035
12
16%
₹ 2,721
₹ 2,662
18
16%
₹ 1,885
₹ 3,941
24
16%
₹ 1,468
₹ 5,252
Kotak Mahindra Bank
Tenure
Interest%
Installment
Interest
3
16%
₹ 10,264
₹ 803
6
16%
₹ 5,234
₹ 1,415
9
16%
₹ 3,558
₹ 2,035
12
16%
₹ 2,721
₹ 2,662
18
16%
₹ 1,885
₹ 3,941
24
16%
₹ 1,468
₹ 5,252
RBL Bank
3
13%
₹ 10,214
₹ 652
6
14%
₹ 5,204
₹ 1,236
9
15%
₹ 3,544
₹ 1,905
12
15%
₹ 2,707
₹ 2,492
18
15%
₹ 1,871
₹ 3,687
24
15%
₹ 1,454
₹ 4,909
Standard Chartered Bank
3
13%
₹ 10,214
₹ 652
6
13%
₹ 5,190
₹ 1,147
9
14%
₹ 3,530
₹ 1,776
12
14%
₹ 2,693
₹ 2,323
INDUSIND Bank
3
14%
₹ 10,231
₹ 702
6
14%
₹ 5,204
₹ 1,236
9
15%
₹ 3,544
₹ 1,905
12
15%
₹ 2,707
₹ 2,492
18
15%
₹ 1,871
₹ 3,687
24
15%
₹ 1,454
₹ 4,909
HSBC Bank
3
12.50%
₹ 10,206
₹ 627
6
12.50%
₹ 5,182
₹ 1,103
9
13.50%
₹ 3,522
₹ 1,712
12
13.50%
₹ 2,686
₹ 2,238
18
13.50%
₹ 1,850
₹ 3,307
YES Bank
3
13%
₹ 10,214
₹ 652
6
13%
₹ 5,190
₹ 1,147
9
14%
₹ 3,530
₹ 1,776
12
14%
₹ 2,693
₹ 2,323
18
15%
₹ 1,871
₹ 3,687
24
15%
₹ 1,454
₹ 4,909
Bank of Baroda
3
13%
₹ 10,214
₹ 652
6
14%
₹ 5,204
₹ 1,236
9
14%
₹ 3,530
₹ 1,776
12
15%
₹ 2,707
₹ 2,492
18
15%
₹ 1,871
₹ 3,687
24
16%
₹ 1,468
₹ 5,252
American Express
3
14%
₹ 10,231
₹ 702
6
14%
₹ 5,204
₹ 1,236
9
14%
₹ 3,530
₹ 1,776
12
14%
₹ 2,693
₹ 2,323
18
15%
₹ 1,871
₹ 3,687
24
15%
₹ 1,454
₹ 4,909
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Why Sennheiser is Special
Designed in Germany
Established & Reputed
Trust us, our reputation in the audio world speaks for itself!
This headphone or gear comes from a well-respected brand known for its high-quality audio equipment, so you can be confident in your purchase.
If you see a product marked as “🎖️ Established & Reputed”, it means you're getting a top-tier device from a brand that's earned its stripes in the audio industry.
Revered by Audiophiles
Audiophiles can be really picky and tough to impress and if the audiophile community says something sounds good, you can bet it's great!
This headphone or gear has gained recognition and admiration from audiophiles, who are known for their discerning taste in high-fidelity audio. They appreciate its precision, attention to detail and its ability to deliver an immersive sonic experience.
If you see a product marked as "🙌🏻 Revered by Audiophiles", it means that it meets the highest standards of sound quality and performance, making it a top choice for anyone who values exceptional audio experiences.
Specialist
A masterpiece from the experts who know audio inside and out!
This headphone or gear is crafted by specialists who know their stuff, ensuring every detail is perfect.
If you see a product marked as “🌟 Specialist”, it means you're choosing a device designed by experts who specialize in creating this specific category of device.
Born in 1945
Why we love this Headphone
Premium Economy
Sensible spending and class above in quality.
This headphone or gear offers top-notch sound and performance without much impact on your pocket, promising a delightful experience that exceeds your expectations at an economical price point.
If you see a product marked as “💎 Premium Economy," it indicates that you're getting a high-quality audio product with exceptional sound clarity and reliable performance, all at a budget-friendly price.
Serious Audiophiles Only
Diving deeper into exploring the hobby is never enough.
If you're an audiophile on a hunt for a device that meets your high standards, this is one such headphone or gear designed for discerning audiophiles like you in mind.
If you see a product marked with “🦈 Serious Audiophiles Only" we assure you that this device can match your depth of knowledge and expertise to take your passion for audio to the next level.
Great for Studio & Professionals
When you need the best to deliver your best.
This headphone or gear meets the high standards and requirements of a professional and studio environments. Plug these in and focus on doing your best work.
If you see products marked as “🎙️ Great for Studio & Professionals”, you can trust that you're getting precision, reliability, and top-tier performance, perfect for bringing your creative and professional projects to life!
4.4mm Balanced Plug
Upgradeable Cable
Not happy with your current cable? Swap it out!
If you're searching for an in-ear monitor with a detachable design, these IEMs fit the bill.
If you see an IEM marked with "🔌 Upgradeable Cable," it means it comes with a detachable cable. You can easily swap or upgrade the cable, allowing for customization or maintenance whenever you desire.
Why it Sounds Amazing
Dynamic Driver
The dynamic powerhouse of your sound
This headphone or gear houses dynamic driver speaker unit that produces sound, delivering a punchy and energetic audio experience.
If you see a product marked with “🔈 Dynamic Driver” you're in for lively bass, clear mids and vibrant highs, making your music come alive with every beat!
Flat Sound Signature
For those on a quest to try and hear the “purest” audio possible.
This headphone or gear offers an neutral, uncoloured audio profile, perfect for purists who crave accuracy.
If you see products marked as “📏 Flat Sound Signature”, you’re in for a true-to-life listening experience, hearing your music exactly as it was recorded, without any artificial boosts or tweaks.
Crisp Vocals & Instruments
Vocals and Instruments sound too good, its like a warm hug.
This headphone or gear excels at delivering clear, clean vocals and instruments, making every sound pop.
If you see products marked as “🍿 Crisp Vocals & Instruments”, prepare for an audio experience where every word and note is perfectly articulated, letting you enjoy your music with pristine clarity and detail.
Sharp & Precise Details
Are you a lover of sharp and precise details in your music?
This headphone or gear delivers meticulous and accurate details in your audio, ideal for those who prioritise precise sound reproduction.
If you see a product marked with "📌 Sharp & Precise Details", it means this device excels in capturing fine nuances and intricacies in your music, ensuring a high level of clarity and fidelity.
Perfect to Analyse Music
Delve deeper into the Bassline, Riffs and Harmonies.
This headphone or gear is designed for those who dive deep into the nuances of sound, offering precision for music analysis.
If you see products marked as “🔍 Perfect to Analyse Music”, get ready to dissect every beat, note, and harmony with exceptional clarity, making it an ideal tool for musicians, producers, and audiophiles who crave detailed insights into their music.
Needs Amplification
I need more power to thrive.
This headphone or gear shines brightest with a bit of extra power. It’s designed to deliver top-notch performance when paired with an amplifier, giving you that full, rich sound you crave.
If you see a product marked as "🚂 Needs Amplification", it means this device is built to excel with an amp, ensuring you get the most out of your music with enhanced volume and clarity. Perfect for audiophiles who love their sound big and bold.
The Sennheiser HD 660S2 provides an effortless listening experience. If you have a preference for acoustic or vocal-focused music, these over-ear headphones are likely to satisfy your tastes. The quality of the midrange alone might be enough to make the purchase worthwhile, but what distinguishes them is the notable bass presence, making them a compelling option for an upgrade.
About RAGHAV SOMANI
Raghav Somani is the Founder & CEO of Headphone Zone. An avid audiophile and musician since 2008, his choice of headphones include STAX Electrostats, Audeze LCD 3, and for music on the go, the JH Audio Roxanne + Astell&Kern SP1000 is never too far away. On his playlist, you'll find A.R. Rahman, Michael Jackson, and the Eagles.
DESCRIPTION
PRESENTING THE ALL-NEW HD 660S2, A DEFINITIVE UPGRADE TO THE LEGENDARY HD 660S
Sennheiser has a 75-year history, past achievements, and inventions in the audio industry as a third-generation family-run company, as well as its desire to influence its future. Sennheiser's engineers work diligently to provide some of the most audiophile-focused headphones available. The manufacturing process for headphones like the HD 600, HD 650, HD660S, HD 800 S, and HD 820, to mention a few, involved extensive research and development. With the same approach, the HD 660S2 was born. The new, high-end Sennheiser HD 660S2 headphone outperforms the iconic HD 660S's excellent performance. Sennheiser is attempting to expand its product line with the HD 660S2, designed specifically for the most demanding listeners. An eye-catching new matte black design is featured on the Sennheiser HD 660S2. It has a classically exquisite appearance with some modern influences. It truly represents sophistication with the text and logo having bronze colour. The HD 660S2 headphones provide an audiophile-grade experience that will take your breath away!
FEATURES 38MM DYNAMIC TRANSDUCERS THAT DELIVERS BREATHTAKING SONIC PERFORMANCE
Sennheiser has reduced the transducer size on the HD 660S2 having the all-new 38mm transducer. The HD 660S2 has an extended sub-bass response compared to the HD 660S. It offers a relaxed sound signature with non-offensive tuning, allowing you to listen to your favourite tracks at a stretch. It has exceptional resolution taking you closer than ever to instruments and vocalists. The sound is relatively balanced across the frequency spectrum that does not lead to fatigue if listened to for long hours. The HD 660S2 has a warm and inviting signature combined with extended sub-bass making listening uniquely pleasant and rewarding. It practically begs you to keep going for endless sessions. That’s how HD 660S2 combines the best of both worlds combining non-offensive tuning and optimum comfort. The HD 660S2 gives you an extraordinary experience, allowing you to immerse yourself in music. Dive deeper into the legendary sound of the HD 660S2!
OPEN-BACK DESIGN OFFERS AN EXPANSIVE SOUNDSTAGE AND PRECISE IMAGING
High-end Sennheiser headphones have inspired generations since the HD 580 because of their balanced, natural reproduction. The HD 600, HD 650, and HD 660S all share audible and visual characteristics with the HD 660S2 and are industry standards for neutral audiophile sound. For instance, the HD 660S2 has an updated coil which now matches the renowned HD 600 and HD 650 300-ohm impedance. Moreover, this redesigned coil offers improved electrical damping and magnetic force for an impactful impulse response. The HD 660S2 has significantly better accuracy, responsiveness, and resolution and twice as much sound pressure at the lowest frequencies. Sennheiser has retained extraordinary precision and balance throughout the sub-bass, mid-bass, and beyond. Most impressive is how this affects the listening experience. Extension on the low end changes everything — by creating more space for the sound. Against a deeper backdrop, highs feel more brilliant, the soundstage deeper and open, and emotions stronger with precise imaging. Experience an oasis of sonic bliss with the all-new HD 660S2!
EXQUISITE DESIGN WITH ALL-DAY WEARING COMFORT
The Sennheiser HD 660S2 is built entirely in Ireland and quickly grabs your attention due to its excellent build quality. The HD 660S2's velour earpads can only be described as a physical delight. The headband won't detract from your music thanks to its soft padding and just-right tension for optimal acoustic alignment. The HD 660S2's open-back design provides an incredibly comfortable environment, even during prolonged sessions. The ergonomic headband and lightweight design rule out any potential discomfort on top of your head. You'll rapidly develop an attachment to a listening experience as physically relaxing as the pleasant, non-fatiguing sound at its core.
EASY CONNECTIVITY WITH HIGH-QUALITY CABLES THAT ENSURE LOSSLESS SIGNAL TRANSMISSION
Sennheiser is known for designing some of the most versatile cables that are robust and provide exceptional audio transmission. Sennheiser has included two sets of beautiful cables with the HD 660S2 to accommodate your audio configuration. It has no microphonics and achieves a stable connection. The package includes a 6.3mm (Single-Ended) cable and a 4.4mm (Balanced) cable with 1.8m in length, making them compatible with most audio sources. One benefit of using the HD 660S2 with a balanced connection is that it offers an even lower noise floor and excellent dynamic range. The result is a broader soundstage, precisely controlled transients, and impossibly distinct instrument separation.
SPECS
| TRANSDUCER PRINCIPLE | Dynamic, open |
| TRANSDUCER SIZE | 38 mm |
| IMPEDANCE | 300 Ω |
| SOUND PRESSURE LEVEL (SPL) | 104 dB (1 kHz, 1 Vrms) |
| THD | <0.04% (1 kHz, 100 dB) |
| FREQUENCY RESPONSE | 8 – 41,500 Hz |
| MAGNETIC FIELD | 4.5mT |
| WIRED CONNECTIVITY | 3.5 mm(Single-Ended) 4.4 mm (Balanced) 6.3 mm (1⁄4 inch) (Single-Ended) |
| ADAPTER | 6.3 mm (1⁄4 inch) to 3.5 mm |
| MICROPHONE | No |
| WEARING STYLE | Over-Ear |
| CABLE LENGTH | 1.8m |
| WEIGHT | 260g |
| BOX CONTENTS | 1. Sennheiser HD 660 S2 Headphones |
| 2. 6.3 mm cable (1.8 m) | |
| 3. 4.4 mm cable (1.8 m) | |
| 4. 6.3mm to 3.5mm adapter | |
| 5. Carry pouch |
OTHER DETAILS
| GENERIC NAME | Headphones |
| COUNTRY OF ORIGIN | Ireland |
| IMPORTER DETAILS | Sennheiser Electronics India Pvt. Ltd. Address: 104 A, B, C, First Floor, Time Tower, M.G. Road, Sector-28,Gurugram,Haryana-122002 Contact No: 1800 22 3632 |
| NET QUANTITY | 1 |
FAQs
What is the warranty period on Sennheiser HD 660S2 and how do I claim warranty?
All Sennheiser products come with a 2 year warranty. Read more on warranty claim here.
How does the Sennheiser HD 660S2 perform compared to its predecessor Sennheiser HD 660S?
Well, tough question, but let's get straight to the point, Yes Sennheiser has made the Sennheiser HD 660S2 better than the Sennheiser HD 660S. In terms of tuning the HD 660S2 has a bit more punch and slam. Coming to the mid-range and upper treble it also resolves a lot better than the Sennheiser HD 660S. It has a more open and airy sound. All in all the Sennheiser HD 660S2 is more smoother and refined in its presentation. Coming to comfort and design both these headphones provide optimum comfort and the pads will allow your ears to breathe. The eye-catching aspect in terms of design would be the bronze colour text and logo which is silver on the Sennheiser HD 660S.
How do these sound?
The Sennheiser HD 660S2 has a flat sound signature that offers an accurate presentation of sounds without adding colour to your music. The sound is natural and precise which will satisfy most discerning audiophiles.
Are these comfortable for long listening sessions?
Yep! Sennheiser is known for designing headphones that are extremely light and comfortable and the Sennheiser HD 660S2 is no different.
What cables are provided with these headphones?
The package includes a 6.3mm (Single-Ended) cable and a 4.4mm (Balanced) cable with 1.8m in length.
What does the package include?
Sennheiser HD 660S2 headphones
6.3 mm cable (1.8 m)
4.4 mm cable (1.8 m)
6.3mm to 3.5mm adapter
Carry pouch
PRESENTING THE ALL-NEW HD 660S2, A DEFINITIVE UPGRADE TO THE LEGENDARY HD 660S
Sennheiser has a 75-year history, past achievements, and inventions in the audio industry as a third-generation family-run company, as well as its desire to influence its future. Sennheiser's engineers work diligently to provide some of the most audiophile-focused headphones available. The manufacturing process for headphones like the HD 600, HD 650, HD660S, HD 800 S, and HD 820, to mention a few, involved extensive research and development. With the same approach, the HD 660S2 was born. The new, high-end Sennheiser HD 660S2 headphone outperforms the iconic HD 660S's excellent performance. Sennheiser is attempting to expand its product line with the HD 660S2, designed specifically for the most demanding listeners. An eye-catching new matte black design is featured on the Sennheiser HD 660S2. It has a classically exquisite appearance with some modern influences. It truly represents sophistication with the text and logo having bronze colour. The HD 660S2 headphones provide an audiophile-grade experience that will take your breath away!
FEATURES 38MM DYNAMIC TRANSDUCERS THAT DELIVERS BREATHTAKING SONIC PERFORMANCE
Sennheiser has reduced the transducer size on the HD 660S2 having the all-new 38mm transducer. The HD 660S2 has an extended sub-bass response compared to the HD 660S. It offers a relaxed sound signature with non-offensive tuning, allowing you to listen to your favourite tracks at a stretch. It has exceptional resolution taking you closer than ever to instruments and vocalists. The sound is relatively balanced across the frequency spectrum that does not lead to fatigue if listened to for long hours. The HD 660S2 has a warm and inviting signature combined with extended sub-bass making listening uniquely pleasant and rewarding. It practically begs you to keep going for endless sessions. That’s how HD 660S2 combines the best of both worlds combining non-offensive tuning and optimum comfort. The HD 660S2 gives you an extraordinary experience, allowing you to immerse yourself in music. Dive deeper into the legendary sound of the HD 660S2!
OPEN-BACK DESIGN OFFERS AN EXPANSIVE SOUNDSTAGE AND PRECISE IMAGING
High-end Sennheiser headphones have inspired generations since the HD 580 because of their balanced, natural reproduction. The HD 600, HD 650, and HD 660S all share audible and visual characteristics with the HD 660S2 and are industry standards for neutral audiophile sound. For instance, the HD 660S2 has an updated coil which now matches the renowned HD 600 and HD 650 300-ohm impedance. Moreover, this redesigned coil offers improved electrical damping and magnetic force for an impactful impulse response. The HD 660S2 has significantly better accuracy, responsiveness, and resolution and twice as much sound pressure at the lowest frequencies. Sennheiser has retained extraordinary precision and balance throughout the sub-bass, mid-bass, and beyond. Most impressive is how this affects the listening experience. Extension on the low end changes everything — by creating more space for the sound. Against a deeper backdrop, highs feel more brilliant, the soundstage deeper and open, and emotions stronger with precise imaging. Experience an oasis of sonic bliss with the all-new HD 660S2!
EXQUISITE DESIGN WITH ALL-DAY WEARING COMFORT
The Sennheiser HD 660S2 is built entirely in Ireland and quickly grabs your attention due to its excellent build quality. The HD 660S2's velour earpads can only be described as a physical delight. The headband won't detract from your music thanks to its soft padding and just-right tension for optimal acoustic alignment. The HD 660S2's open-back design provides an incredibly comfortable environment, even during prolonged sessions. The ergonomic headband and lightweight design rule out any potential discomfort on top of your head. You'll rapidly develop an attachment to a listening experience as physically relaxing as the pleasant, non-fatiguing sound at its core.
EASY CONNECTIVITY WITH HIGH-QUALITY CABLES THAT ENSURE LOSSLESS SIGNAL TRANSMISSION
Sennheiser is known for designing some of the most versatile cables that are robust and provide exceptional audio transmission. Sennheiser has included two sets of beautiful cables with the HD 660S2 to accommodate your audio configuration. It has no microphonics and achieves a stable connection. The package includes a 6.3mm (Single-Ended) cable and a 4.4mm (Balanced) cable with 1.8m in length, making them compatible with most audio sources. One benefit of using the HD 660S2 with a balanced connection is that it offers an even lower noise floor and excellent dynamic range. The result is a broader soundstage, precisely controlled transients, and impossibly distinct instrument separation.
| TRANSDUCER PRINCIPLE | Dynamic, open |
| TRANSDUCER SIZE | 38 mm |
| IMPEDANCE | 300 Ω |
| SOUND PRESSURE LEVEL (SPL) | 104 dB (1 kHz, 1 Vrms) |
| THD | <0.04% (1 kHz, 100 dB) |
| FREQUENCY RESPONSE | 8 – 41,500 Hz |
| MAGNETIC FIELD | 4.5mT |
| WIRED CONNECTIVITY | 3.5 mm(Single-Ended) 4.4 mm (Balanced) 6.3 mm (1⁄4 inch) (Single-Ended) |
| ADAPTER | 6.3 mm (1⁄4 inch) to 3.5 mm |
| MICROPHONE | No |
| WEARING STYLE | Over-Ear |
| CABLE LENGTH | 1.8m |
| WEIGHT | 260g |
| BOX CONTENTS | 1. Sennheiser HD 660 S2 Headphones |
| 2. 6.3 mm cable (1.8 m) | |
| 3. 4.4 mm cable (1.8 m) | |
| 4. 6.3mm to 3.5mm adapter | |
| 5. Carry pouch |
OTHER DETAILS
| GENERIC NAME | Headphones |
| COUNTRY OF ORIGIN | Ireland |
| IMPORTER DETAILS | Sennheiser Electronics India Pvt. Ltd. Address: 104 A, B, C, First Floor, Time Tower, M.G. Road, Sector-28,Gurugram,Haryana-122002 Contact No: 1800 22 3632 |
| NET QUANTITY | 1 |
What is the warranty period on Sennheiser HD 660S2 and how do I claim warranty?
All Sennheiser products come with a 2 year warranty. Read more on warranty claim here.
How does the Sennheiser HD 660S2 perform compared to its predecessor Sennheiser HD 660S?
Well, tough question, but let's get straight to the point, Yes Sennheiser has made the Sennheiser HD 660S2 better than the Sennheiser HD 660S. In terms of tuning the HD 660S2 has a bit more punch and slam. Coming to the mid-range and upper treble it also resolves a lot better than the Sennheiser HD 660S. It has a more open and airy sound. All in all the Sennheiser HD 660S2 is more smoother and refined in its presentation. Coming to comfort and design both these headphones provide optimum comfort and the pads will allow your ears to breathe. The eye-catching aspect in terms of design would be the bronze colour text and logo which is silver on the Sennheiser HD 660S.
How do these sound?
The Sennheiser HD 660S2 has a flat sound signature that offers an accurate presentation of sounds without adding colour to your music. The sound is natural and precise which will satisfy most discerning audiophiles.
Are these comfortable for long listening sessions?
Yep! Sennheiser is known for designing headphones that are extremely light and comfortable and the Sennheiser HD 660S2 is no different.
What cables are provided with these headphones?
The package includes a 6.3mm (Single-Ended) cable and a 4.4mm (Balanced) cable with 1.8m in length.
What does the package include?
Sennheiser HD 660S2 headphones
6.3 mm cable (1.8 m)
4.4 mm cable (1.8 m)
6.3mm to 3.5mm adapter
Carry pouch
Don't know what to pair it with?
Save with these Expertly Curated Bundles
Don't sweat it, this
Sennheiser - HD 660S2 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.
"Specifically: it’s built for sound quality only, so there’s little in the way of advanced features or frills, instead focusing on comfort and performance above any other concern."
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"In a word, the sound is effortless. It just springs forth and gently bathes you in its detail, instead of pummeling you, which is a possible side effect of closed-back headphones. "
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"The S2 has smooth and delicious treble for high hats and higher pitched instruments. It's done completely different compared to the 600, 660S and 560S. And it's realism."
Read More
"The S2 does make its case with the improvements in the sound signature. The soundstage depth is an improvement, but the bass and treble also undergo enhancement."
Read More
"Plush earpads and cushy headband padding place the revised 300-ohm transducers at optimal distance from the ear resulting in a spacious soundstage with abundance of detail."
Read More
"The coil matches the 300-ohm impedance of the HD 600 & HD 650. This new coil provides higher magnetic force and electrical dampening for cleaner impulse response."
Read More
"It’s clear that Sennheiser not only had sound professionals in mind when creating the 660S2; it is meant to be enjoyed for tender handling of instruments and its buoyant character."
Read More
"The Sennheiser HD 660S2 are very good for neutral sound. They have a warm sound profile and, despite being open-back, pack more thump and rumble than their predecessor."
Read More
"The waiting is finally over, as clearly HD660S2 aren’t only bassier, deeper, and punchier sounding than any other cans from the HD6XX lineup."
Read More
"By and large, I found the Sennheiser HD 660S2 Open-Back Headphones to have an immediate sound with lots of clarity, detail, and speed."
Read More
Flat: Designed for studio professionals for critical reference monitoring.
Flat: Designed for studio professionals for critical reference monitoring.
Flat: Designed for studio professionals for critical reference monitoring.
38mm Dynamic Drivers
42mm Dynamic Drivers
42mm Dynamic Drivers
Open-Back
Open-Back
Open-Back
300 Ohms
300 Ohms
300 Ohms
The Sennheiser HD 660S2 provides an effortless listening experience. If you have a preference for acoustic or vocal-focused music, these over-ear headphones are likely to satisfy your tastes. The quality of the midrange alone might be enough to make the purchase worthwhile, but what distinguishes them is the notable bass presence, making them a compelling option for an upgrade.
This headphone is a classic. The Sennheiser HD650 isn't a new headphone, but it's still a favourite amongst audiophiles. The sound signature can be best described as 'reference grade' because so many people over the years have used this as a benchmark for use in the studio and at home. Pair it with a decent tube amplifier to hear it sing.
Sennheiser HD 660 S2 Headphones, 6.3 Mm Cable (1.8 M), 4.4 Mm Cable (1.8 M), 6.3mm To 3.5mm Adapter, Carry Pouch
Sennheiser HD 650 Headphones, Detachable Cable, Stereo 1/4" To 3.5mm Adapter
Sennheiser HD 600 Headphones, 1 Adaptor To 1/4" (6.3 Mm) Stereo Jack Plug
104 DB (1 KHz, 1 Vrms)
103dB
97 DB At 1 Vrms
3.5mm, 4.4mm, 6.3mm
6.35mm
3.5mm, 6.3mm
This product is rated 5.0 of 5.0 stars.
It has received 6 reviews.
Customer Reviews
TL;DR = This is NOT a review of HD 660S2, I am not an audiophile. This is about why I choose HD 660S2 instead 600 and 650.
My first Sennheiser headphone was HD 202II [closed back with fixed (3m /1̶0̶ m̶i̶l̶e̶ l̶o̶n̶g̶/ 10-feet) long cable]. Was so annoyed with long cable, but heard the Sennheiser sound signature for the first time. Then, over the coming years I had GSP 300, HD 4.50 BT; both were closed back with later being wireless bluetooth headset.
The first open-back Sennheiser I bought was HD 599 SE and realized the difference between open vs closed back headphone. My default preferred headphone type became open-back only.
HD 599 SE was serving me well; but I had the curiosity to try some audiophile-grade open-back headphone. I found Headphone Zone and bought my first entry-level audiophile open-back headphone, Sennheiser HD 560s.
Now, I knew why these are called audiophile headphones; all my favorite music tracks came alive and sounded entirely different and detailed. I realized what I was missing by using closed-back non-audiophile headphones.
HD 560s became my most favorite and daily driver headphone...
but I wanted to dig deeper into audiophile rabbit hole as I was stalking legendary Sennheiser HD 600 series for a long while but could not decide which one to buy between HD 600, HD 650, and most recently launched HD 660S2.
I scoured the internet over reddit, YouTube and so many other sites just to be informed which one is the best HD 600 series headphone. I came know about the release dates and legacy timeline of HD 600 series;
HD 600 = Released in 1997 (the "OG Legend" that started it all)
HD 650 = Released in 2003 ("Legend Evolved")
HD 660S = Released in 2017 (600 series took a new direction; some liked it, some hated it.. in other words, it is "Legend Misunderstood")
HD 660S2 = Released in 2023 (Sennheiser describes it as 660S upgrade and they did something new with it)
I have read and watched many reviews about HD 660S2 (the 600 series flagship for now); but majority of the famous reviewers were not so positive about S2; they were divided between preferring HD 600(Joshua Valour) and HD 650(DMS) over this one.
There are no physical stores near me where I can demo listen 600,650, and 660S2 for myself and decide which one I like the most; so I had to decide on my own.
I decided to go with Sennheiser's latest HD 600 series flagship; "HD 660S2" and I am in the process to realize if this is their greatest among the series.
If you read this far; thank you!
Enjoy your favorite Headphone!
Hi there! Thank you so much for taking the time to share your experience with the Sennheiser HD 660S2. We appreciate your thorough review and are glad to hear that you are enjoying the audiophile sound quality of our headphones. We understand the struggle of choosing between the different models in the HD 600 series, but we're happy to hear that you ultimately found the HD 660S2 to be the perfect fit for you. Thank you for choosing Sennheiser and happy listening!
It’s is Superb headphone. Bass is good however it’s not too much by not making fatigue. Sound staging is very clear to notice. In fact, I was able to hear all the instruments clearly. Even if I don’t concentrate on background instruments, the 660 s2 headphone will notice me about tiny instruments sounds. Overall good headphone for the one who is looking for decent bass, better sound imaging and vocal forward feature.
Great review! Thanks for taking the time to write it. We're glad to hear that our product has helped you improve your sound quality.
It’s an absolutely brilliant upgrade over 650/600/660S
Easier to drive while being just as brilliant while being less dependent on EQ to make it shine
Everything seems to have been improved across the board
Honestly, this is one of the biggest values in audio today
This is even bigger value than 600 at 20k because the 660S2 is more palpable for the masses at large and also improves on technicalities for hardcore audiophiles
Hey there,
Thank you for taking the time to write this review, we really appreciate the genuine feedback! Your review will definitely help fellow audiophiles to make an informed decision.
Reference grade sound, its sound signature is neutral. Using with Fiio KA13.
Hi there! Thank you for leaving a review for the Sennheiser HD 660S2. We're glad to hear that you're enjoying the stonecold classic reference grade sound and neutral sound signature. The Fiio KA13 is a great choice to pair with these headphones. Happy listening!
Great comfort, light weight, superb quality and very beautiful. Music simply flows naturally. Took a while to burn in and after that its simply outstanding. Not very hard to drive but still scales up nicely with my Topping A70 Pro. Loving it.
And yes , special thanks to Raghav for the 1 Day delivery. Headphonezone rocks!
Hey there, thank you for the great review and ratings! So delighted that you are loving your purchase. Hope you had a comfortable shopping experience. Cheers!