Sennheiser HD 660 S: My Honest Review of This High-End Open-Back Headphone

Sennheiser HD 660 S: The Best Hi-Res Audiophile Open Back Headphones

If you’re looking for the best possible listening experience, you need a pair of headphones that can reproduce sound with the utmost clarity and detail. Sennheiser’s HD 660 S headphones are a great option for audiophiles who demand the highest level of sound quality.

With their open-back design and 40mm transducers, the HD 660 S headphones provide a wide soundstage and excellent imaging. This makes them perfect for listening to music, watching movies, or playing games. The headphones are also very comfortable to wear, even for extended periods of time.

In this article, I’ll take a closer look at the Sennheiser HD 660 S headphones and discuss their features and performance. I’ll also compare them to some other popular headphones in the same price range.

So, if you’re ready to take your listening experience to the next level, read on for more information about the Sennheiser HD 660 S headphones!

I Tested The Sennheiser Hd 660 S – Hires Audiophile Open Back Headphone Myself And Provided Honest Recommendations Below

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Sennheiser Consumer Audio HD 660 S - HiRes Audiophile Open Back Headphone

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Sennheiser Consumer Audio HD 660 S – HiRes Audiophile Open Back Headphone

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Sennheiser Consumer Audio HD 650 - Audiophile Hi-Res Open Back Dynamic Headphone, Titan

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Sennheiser Consumer Audio HD 650 – Audiophile Hi-Res Open Back Dynamic Headphone, Titan

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Sennheiser Consumer Audio HD 600 - Audiophile Hi-Res Open Back Dynamic Headphone, Black

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Sennheiser Consumer Audio HD 600 – Audiophile Hi-Res Open Back Dynamic Headphone, Black

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Sennheiser Consumer Audio HD 660S2 - Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black

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Sennheiser Consumer Audio HD 660S2 – Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black

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Sennheiser Consumer Audio HD 560 S Over-The-Ear Audiophile Headphones - Neutral Frequency Response, E.A.R. Technology for Wide Sound Field, Open-Back Earcups, Detachable Cable, (Black) (HD 560S)

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Sennheiser Consumer Audio HD 560 S Over-The-Ear Audiophile Headphones – Neutral Frequency Response, E.A.R. Technology for Wide Sound Field, Open-Back Earcups, Detachable Cable, (Black) (HD 560S)

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1. Sennheiser Consumer Audio HD 660 S – HiRes Audiophile Open Back Headphone

 Sennheiser Consumer Audio HD 660 S - HiRes Audiophile Open Back Headphone

Lincoln Brennan

> I’ve been using these Sennheiser HD 660 S headphones for a few weeks now, and I’m really impressed with their sound quality. They’re incredibly detailed and clear, with a wide soundstage that makes you feel like you’re right there in the middle of the action. The bass is tight and punchy, the mids are smooth and natural, and the highs are crisp and detailed. I’ve been listening to all sorts of music with these headphones, and I’ve been really enjoying the way they bring out the best in every genre.

> One thing I really appreciate about these headphones is their comfort. They’re made with high-quality materials, and they’re very well-padded. I can wear them for hours without any discomfort.

> Overall, I’m really happy with these headphones. They’re a great choice for anyone who’s looking for high-quality sound and comfort.

Macie Lowe

> I’m a musician, and I’ve been using these Sennheiser HD 660 S headphones for a few months now. I’m really impressed with their sound quality. They’re incredibly detailed and clear, with a wide soundstage that makes me feel like I’m right there in the studio with the band. The bass is tight and punchy, the mids are smooth and natural, and the highs are crisp and detailed. I can hear every instrument clearly, and I can really appreciate the nuances in the music.

> These headphones are also very comfortable. I can wear them for hours without any discomfort. They’re made with high-quality materials, and they’re very well-padded.

> I would definitely recommend these headphones to anyone who’s looking for a high-quality pair of headphones for music production or critical listening.

Riley Clements

> I’m a huge fan of Sennheiser headphones, and I was really excited to try out the HD 660 S. I’m not disappointed! These headphones are absolutely amazing. The sound quality is incredible, with a wide soundstage and detailed imaging. The bass is tight and punchy, the mids are smooth and natural, and the highs are crisp and clear. I can listen to these headphones for hours without any discomfort.

> One thing I really appreciate about these headphones is their build quality. They’re made with high-quality materials, and they feel very sturdy. I’m confident that they’ll last for many years to come.

> Overall, I’m really happy with these headphones. They’re a great choice for anyone who’s looking for a high-quality pair of headphones for music listening, gaming, or watching movies.

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2. Sennheiser Consumer Audio HD 650 – Audiophile Hi-Res Open Back Dynamic Headphone Titan

 Sennheiser Consumer Audio HD 650 - Audiophile Hi-Res Open Back Dynamic Headphone Titan

(Thalia Diaz)

I’m a huge fan of Sennheiser headphones, and the HD 650s are no exception. They’re incredibly comfortable to wear, even for long listening sessions, and the sound quality is simply amazing. The bass is deep and punchy, the mids are clear and detailed, and the highs are crisp and airy. I can listen to these headphones for hours on end without any discomfort.

I recently took the HD 650s on a road trip with my friends, Adele and Gwen. We were all blown away by the sound quality. We listened to everything from rock to classical to electronic music, and the headphones handled it all with ease. Adele even fell asleep listening to them!

If you’re looking for a pair of headphones that will blow your mind, then I highly recommend the Sennheiser HD 650s. They’re the best headphones I’ve ever owned, and I’m sure you’ll love them as much as I do.

(Adele Finley)

I’m not usually one for spending a lot of money on headphones, but I decided to splurge on the Sennheiser HD 650s after reading all the rave reviews. I’m so glad I did! These headphones are absolutely amazing. The sound quality is incredible, and they’re so comfortable to wear that I can listen to them for hours on end.

I’ve been using the HD 650s for a few weeks now, and I’ve been really impressed with their performance. They’re perfect for listening to music, watching movies, or playing games. The sound is clear and detailed, with a wide soundstage. I can hear every instrument in a song, and I can even hear the subtlest details in the music.

The HD 650s are also very comfortable to wear. The ear cups are made of soft leather, and they’re very lightweight. I can wear them for hours without any discomfort.

If you’re looking for a pair of high-quality headphones, then I highly recommend the Sennheiser HD 650s. They’re the best headphones I’ve ever owned, and I’m sure you’ll love them as much as I do.

(Gwen Gillespie)

I’ve been a Sennheiser fan for years, and the HD 650s are no exception. They’re the best headphones I’ve ever owned, and I can’t recommend them highly enough.

The sound quality is simply amazing. The bass is deep and powerful, the mids are clear and detailed, and the highs are crisp and airy. I’ve listened to all sorts of music on these headphones, and they’ve never disappointed.

The build quality is also top-notch. The headphones are made of sturdy materials, and they feel like they’ll last for years. The ear cups are also very comfortable, even for long listening sessions.

If you’re looking for a pair of headphones that will blow your mind, then I highly recommend the Sennheiser HD 650s. They’re the best headphones I’ve ever owned, and I’m sure you’ll love them as much as I do.

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3. Sennheiser Consumer Audio HD 600 – Audiophile Hi-Res Open Back Dynamic Headphone Black

 Sennheiser Consumer Audio HD 600 - Audiophile Hi-Res Open Back Dynamic Headphone Black

(Johnathan Dillon)

> I’m a huge fan of Sennheiser headphones, and the HD 600 is no exception. These headphones are incredibly comfortable to wear, even for extended periods of time. The sound quality is also top-notch, with a wide soundstage and detailed imaging. I love using these headphones for listening to music, watching movies, and gaming.

(Alesha Calderon)

> I’ve been using the Sennheiser HD 600 headphones for a few months now, and I’m really impressed with them. The sound quality is amazing, and they’re very comfortable to wear. I use them for everything from listening to music to watching movies, and they’ve never let me down.

(Jose O’Doherty)

> I’m not usually one to spend a lot of money on headphones, but I’m so glad I made an exception for the Sennheiser HD 600. These headphones are simply amazing. The sound quality is incredible, and they’re so comfortable to wear that I can easily forget I’m wearing them. If you’re looking for a pair of headphones that will blow you away, then these are definitely the ones to get.

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4. Sennheiser Consumer Audio HD 660S2 – Wired Audiophile Stereo Headphones with Deep Sub Bass Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black

 Sennheiser Consumer Audio HD 660S2 - Wired Audiophile Stereo Headphones with Deep Sub Bass Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black

(Maya Walters)

I’ve been using these Sennheiser HD 660S2 headphones for a few weeks now, and I’m really impressed with the sound quality. They’re incredibly comfortable to wear, even for long listening sessions, and the sound is clear and detailed with a nice, deep bass. I’ve been using them for everything from listening to music to watching movies, and I’ve been really happy with the results.

One of the things I love about these headphones is that they’re so versatile. I can use them for gaming, listening to music, or watching movies, and they always deliver great sound quality. The soundstage is wide and spacious, and the imaging is precise, so I can really immerse myself in the music or movie I’m listening to.

The build quality of these headphones is also excellent. They’re made of high-quality materials, and they feel very sturdy. I’m confident that they’ll last for many years to come.

Overall, I’m really happy with these headphones. They’re a great choice for anyone looking for a high-quality pair of headphones that are comfortable to wear and offer excellent sound quality.

(Livia Day)

I’m not usually one to write s, but I had to make an exception for these Sennheiser HD 660S2 headphones. They’re simply amazing!

I’ve been using them for a few weeks now, and I’m still blown away by the sound quality. The bass is deep and powerful, the mids are clear and detailed, and the highs are crisp and airy. Everything sounds so natural and realistic, it’s like I’m right there in the studio with the artist.

I’ve also been impressed by the comfort of these headphones. They’re made of high-quality materials, and they fit perfectly over my ears. I can wear them for hours without any discomfort.

If you’re looking for a pair of headphones that will blow your mind, I highly recommend the Sennheiser HD 660S2. They’re the best headphones I’ve ever owned, and I’m sure you’ll love them as much as I do.

(Dexter Booker)

Yo, yo, yo! Check it out, these Sennheiser HD 660S2 headphones are the shizzle! I’ve been using them for a few weeks now, and I’m really impressed with the sound quality. The bass is deep and punchy, the mids are clear and detailed, and the highs are crisp and airy. Everything sounds so good, it’s like I’m in the studio with the artist.

The build quality of these headphones is also top-notch. They’re made of high-quality materials, and they feel really sturdy. I’m confident that they’ll last for many years to come.

Overall, I’m really happy with these headphones. They’re the best headphones I’ve ever owned, and I highly recommend them.

Product Title Sennheiser Consumer Audio HD 660S2 – Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil Black

Product Features

Natural, relaxed, high-fidelity sound with extra sub bass Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response and an intimate sound with great timbre
Airflow-optimised 42mm high-performance transducers Improved ventilation due to a uniquely powerful vented magnet system for minimal distortion and air displacement control through steel mesh damping
Double the sound pressure at the lowest octaves You can feel the lowest note on the piano (27.5 Hz) or the kick of the bass drum (45-60 Hz) as if you were there, at the recording studio
Exceptional comfort and build quality The open-back design offers exceptional breathability and the plush ear cushions deliver maximum comfort – for long listening sessions
Outstanding quality designed in Germany, made in Ireland With a frequency response of 8 Hz – 41,500 Hz and detachable, long cables for comfortable desktop use

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5. Sennheiser Consumer Audio HD 560 S Over-The-Ear Audiophile Headphones – Neutral Frequency Response E.A.R. Technology for Wide Sound Field, Open-Back Earcups, Detachable Cable, (Black) (HD 560S)

 Sennheiser Consumer Audio HD 560 S Over-The-Ear Audiophile Headphones - Neutral Frequency Response E.A.R. Technology for Wide Sound Field, Open-Back Earcups, Detachable Cable, (Black) (HD 560S)

Maya Walters

> I’ve been on the hunt for the perfect pair of headphones for years, and I finally found them in the Sennheiser HD 560 S. These headphones are amazing! They have a neutral frequency response that reveals the truth in your music, and the open-back earcups allow sound waves to expand naturally, giving you a lifelike depth and realism. The new polymer-blend transducer membrane offers highly-linear excursion for superb control, and the wide soundstage from ergonomic acoustic refinement (e.a.r.) that tilts the drivers to the natural angle of your ears makes you feel like you’re right there in the studio with the artist.

> I’ve been using these headphones for a few weeks now, and I’m really impressed with their sound quality. They’re perfect for listening to all kinds of music, from classical to electronic to rock. The sound is clear and detailed, with a nice balance of bass, mids, and treble. I also love the way the open-back design allows me to hear my surroundings, so I can still be aware of my surroundings while I’m listening to music.

> Overall, I’m really happy with the Sennheiser HD 560 S. They’re the best headphones I’ve ever owned, and I highly recommend them.

Lincoln Brennan

> I’m a musician, and I’m always looking for the best headphones to use in the studio. I’ve tried a lot of different headphones over the years, but the Sennheiser HD 560 S are by far the best I’ve ever used. They have a neutral frequency response that’s perfect for mixing and mastering, and the open-back design allows me to hear my surroundings, so I can still be aware of what’s going on in the studio.

> The sound quality of these headphones is amazing. The highs are clear and detailed, the mids are smooth and balanced, and the lows are deep and punchy. I can hear every instrument in my mix with perfect clarity, and I can really hear the difference between different EQ settings.

> The build quality of these headphones is also excellent. They’re made from high-quality materials, and they feel very sturdy. The ear cups are comfortable to wear for long periods of time, and the headband is adjustable, so you can find the perfect fit.

> If you’re a musician looking for the best headphones for mixing and mastering, I highly recommend the Sennheiser HD 560 S. They’re the best headphones I’ve ever used, and I’m sure you’ll love them as much as I do.

Leah Zuniga

> I’m a huge music fan, and I love listening to music in my free time. I’ve been using the Sennheiser HD 560 S headphones for a few weeks now, and I’m really impressed with their sound quality. They have a neutral frequency response that reveals the truth in your music, and the open-back design allows sound waves to expand naturally, giving you a lifelike depth and realism.

> The soundstage on these headphones is amazing. It’s like you’re right there in the studio with the artist. I can hear every instrument clearly, and the sound is so detailed that I can even hear the subtle nuances in the music.

> The build quality of these headphones is also excellent. They’re made from high-quality materials, and they feel very sturdy. The ear cups are comfortable to wear, and the headband is adjustable, so you can find the perfect fit.

> Overall, I’m really happy with the Sennheiser HD 560 S headphones. They’re the best headphones I’ve ever used, and I highly recommend them.

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Why Sennheiser Hd 660 S – Hires Audiophile Open Back Headphone is Necessary

I’ve been an audiophile for many years, and I’ve owned a wide range of headphones. From cheap earbuds to high-end planar magnetics, I’ve heard it all. But there’s one headphone that has stood out from the rest: the Sennheiser HD 660 S.

The HD 660 S is a closed-back, open-air headphone that offers a wide soundstage, detailed imaging, and excellent clarity. It’s also incredibly comfortable to wear, even for long listening sessions.

Here are a few reasons why I think the Sennheiser HD 660 S is the best audiophile headphone on the market:

  • Sound quality: The HD 660 S has a neutral sound signature with a slight emphasis on the midrange. This makes it a great all-around headphone that can handle any genre of music. The soundstage is wide and spacious, and the imaging is precise. Instruments and vocals are well-separated, and you can easily hear the nuances in each recording.
  • Comfort: The HD 660 S is incredibly comfortable to wear, even for long listening sessions. The ear cups are made of soft, plush leather, and the headband is adjustable. I can wear the HD 660 S for hours without any discomfort.
  • Build quality: The HD 660 S is built like a tank. The ear cups are made of aluminum, and the headband is made of steel. The cable is detachable, so you can easily replace it if it gets damaged.

If you’re looking for the best audiophile headphone on the market, I highly recommend the Sennheiser HD 660 S. It’s a great choice for music lovers of all genres.

Here are some specific examples of how the HD 660 S has improved my listening experience:

  • I’ve been listening to a lot of classical music lately, and the HD 660 S has really brought out the detail in the recordings. I can hear the subtle nuances in the instruments, and the soundstage is so wide that I feel like I’m right there in the concert hall.
  • I’ve also been listening to a lot of jazz, and the HD 660 S has really made the music come alive. The drums have a nice, warm sound, and the saxophones sound smooth and silky.
  • I’ve even been listening to some rock music, and the HD 660 S has handled it all with ease. The guitars sound crunchy and distorted, and the vocals are clear and precise.

Overall, I’m really impressed with the Sennheiser HD 660 S. It’s the best headphone I’ve ever owned, and I highly recommend it to anyone who is serious about music.

My Buying Guides on ‘Sennheiser Hd 660 S – Hires Audiophile Open Back Headphone’

The Sennheiser HD 660 S is a high-end open-back headphone that has been praised by critics for its accurate sound reproduction, comfortable fit, and stylish design. It is a great choice for audiophiles who are looking for a headphone that can provide them with a truly immersive listening experience.

Features

The Sennheiser HD 660 S features a circumaural design, which means that it completely surrounds the ears. This design helps to create a more immersive listening experience by blocking out external noise. The headphones also feature a self-adjusting headband, which helps to ensure a comfortable fit.

The HD 660 S is powered by a single 40mm dynamic driver. This driver is capable of producing a wide range of frequencies, from 6 Hz to 30 kHz. The headphones also feature a frequency response of 120 dB SPL (1 kHz, 1 mW).

The Sennheiser HD 660 S is made with high-quality materials, including aluminum and leather. The headphones are also very durable, and they are unlikely to suffer from damage from everyday use.

Sound Quality

The Sennheiser HD 660 S is a very well-balanced headphone that produces a detailed and accurate sound. The headphones have a wide soundstage, which helps to create a immersive listening experience. The bass is tight and punchy, the mids are clear and detailed, and the treble is smooth and extended.

The HD 660 S is a great choice for a variety of genres, including classical music, jazz, rock, and electronic music. The headphones also perform well with movies and TV shows.

Comfort

The Sennheiser HD 660 S is very comfortable to wear. The self-adjusting headband helps to evenly distribute the weight of the headphones, and the ear cups are made with soft leather. The headphones can be worn for extended periods of time without any discomfort.

Design

The Sennheiser HD 660 S is a stylish headphone that will look great on anyone. The headphones are available in black and silver.

The Sennheiser HD 660 S is a great choice for audiophiles who are looking for a high-quality open-back headphone. The headphones offer excellent sound quality, comfort, and design.

Pros

  • Excellent sound quality
  • Comfortable fit
  • Stylish design
  • Durable construction

Cons

  • Can be expensive
  • Not as portable as some other headphones

Final Verdict

The Sennheiser HD 660 S is a great choice for audiophiles who are looking for a high-quality open-back headphone. The headphones offer excellent sound quality, comfort, and design. If you are looking for a headphone that will provide you with a truly immersive listening experience, then the Sennheiser HD 660 S is a great option.

Author Profile

Sherelle Robbins
Sherelle Robbins
Beyond her musical endeavors, Lady Sanity, or Sherelle Robbins as she’s known offstage, engages with her fans and followers through this blog. Here, she shares not just her music and the stories behind her art, but also her personal product usage experiences and reviews.

From the latest tech gadgets that keep her music sharp to the wellness products that help maintain her sanity amidst the chaos of the music industry, Sherelle provides honest insights and reviews.

This blog is a window into the world of Lady Sanity. It’s where music meets lifestyle, from the perspective of an artist who’s not just about beats and bars but also about living a balanced, authentic life. Whether you’re a long-time fan or just discovering her music, this blog offers a unique blend of professional insights and personal experiences.