Sennheiser HD620S Closed-Back Wired Audiophile Headphones

Sennheiser HD620S Headphones
4.4
Based on 58 customer reviews
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🗣 Customers Say

The Sennheiser HD 620S headphones have received mixed reviews from users. While many praise the clear sound quality, comfortable fit, and immersive experience, others criticize the lack of deep bass, build quality issues, and high price point compared to competitors.

 

Customer Reviews Summary

The Sennheiser HD 620S is a closed-back headphone that has impressed many users with its detailed soundstage, clear mids, and crisp highs. Many reviewers compare its audio performance to the open-back HD600 series, highlighting its ability to create a more spatial and immersive listening experience than typical closed-back models.

Users appreciate the comfortable fit, stating that the plush ear pads and well-padded headband make extended listening sessions enjoyable. However, some users with larger heads mention that the clamping force is a bit tight initially but loosens over time. Many reviewers recommend pairing these headphones with a dedicated DAC/amp to fully unlock their potential.

Despite its strengths, some users express disappointment with the bass response, mentioning that it lacks the deep punch that bass lovers might expect. Additionally, there are concerns about build quality, with some users reporting issues like creaky ear cups, cable connectivity problems, and weak durability in certain parts. Others compare the HD 620S to alternatives like the Beyerdynamic DT 700 PRO X, stating that competitors offer better bass and comfort for a similar or lower price.

✅ What Are the Advantages of This Product?

  • Clear and Detailed Soundstage: Users highlight the wide and immersive sound for a closed-back design, making it ideal for music, gaming, and critical listening.
  • Comfortable Fit for Most Users: The plush ear cushions and padded headband make these headphones comfortable for long listening sessions.
  • Excellent Mids and Treble Clarity: Many users praise the accurate vocal reproduction, crisp highs, and balanced midrange, making these headphones great for classical, jazz, and acoustic music.
  • Effective Noise Isolation: The closed-back design prevents sound leakage and offers good passive noise isolation, making them suitable for office use and home listening.

❌ What Are the Disadvantages of This Product?

  • Lack of Deep Bass: Some users report that the low-end response is underwhelming, particularly for genres like EDM, hip-hop, and bass-heavy tracks.
  • Build Quality Concerns: Several reviewers mention that the headband adjustment mechanism and ear cup durability could be improved.
  • Tight Fit for Larger Heads: While some users find the fit comfortable, others with larger head sizes experience strong clamping pressure, which can cause discomfort over time.
  • Price-to-Performance Ratio: A few users feel that competing models offer better features and sound quality for the price, particularly when comparing with Beyerdynamic DT 700 PRO X and Audio-Technica ATH-M50X.

🔄 How Has This Product Improved?

Compared to older Sennheiser closed-back models, the HD 620S offers a wider soundstage and improved vocal clarity. Users mention that it provides a more open, natural sound than typical closed-back designs, making it a solid alternative to open-back headphones for those needing noise isolation.

⚖️ How Does This Product Compare to Other Options?

Many users compare the HD 620S to models like the Beyerdynamic DT 700 PRO X and Audio-Technica ATH-M50X. While the Sennheiser HD 620S excels in mids, treble clarity, and comfort, competitors like Beyerdynamic offer better bass response and build quality at a similar price.

🎯 Is This Product Right for You?

The Sennheiser HD 620S is ideal for audiophiles, gamers, and professionals who value detailed mids, treble clarity, and comfort. However, if you prioritize deep bass or need extreme durability, you might consider alternative models.

⚠️ What Are the Most Common Problems?

  • Bass may feel weak for bass-heavy music lovers.
  • Build quality concerns regarding ear cups and headband durability.
  • Tight clamp pressure may cause discomfort for larger heads.

🔧 How to Fix Common Issues?

  • To enhance bass response, users recommend using EQ adjustments to boost the lower frequencies.
  • For comfort, stretching the headband slightly over time can reduce clamping force.
  • Using a DAC/amp can significantly improve overall sound quality and dynamics.

💡 How Can You Get the Best Experience with This Product?

  • Pair with a DAC/Amp for the best audio performance.
  • Use EQ settings to fine-tune the bass response.
  • Break-in period: Users report that sound quality improves with use, so patience is key!

🏗️ How Durable Is This Product?

The HD 620S has a solid but plastic-heavy build, which some users find concerning. The ear pads and headband padding are comfortable, but there are reports of ear cups creaking over time.

☎️ Customer Support & Warranty

Users have mixed experiences with Sennheiser’s customer service. While some report helpful and responsive support, others mention slow warranty processing.

⏳ What Do Long-Term Users Say?

Users who have owned the HD 620S for several months report that sound quality remains consistent, but some durability issues arise over time.

🤔 Is This Product Worth It?

The Sennheiser HD 620S is a solid choice for those seeking clear mids, treble, and a closed-back design with good isolation. However, if deep bass, portability, or premium build quality are priorities, you might want to explore other options.

❓ FAQ (Frequently Asked Questions)

Q: Does the Sennheiser HD 620S require an amp?
A: While it works without an amp, using a DAC/Amp enhances clarity and overall sound quality.

Q: Is the bass strong on these headphones?
A: The bass is present but not deep or overpowering, making it better suited for balanced audio rather than bass-heavy music.

Q: Are these good for gaming?
A: Yes! Many users say the wide soundstage and detailed audio make them great for gaming, especially in competitive FPS games.

Q: Can I replace the ear pads?
A: Yes, the ear pads are replaceable, which helps with longevity.

Check it out on Amazon

See the latest pricing for Sennheiser HD 620S Closed-Back Headphones – Premium Audiophile Stereo Sound with Speaker-Like Spatial Imaging and Optimized Surround for Immersive Listening – Wired, Black on Amazon

Overview

Product Page: HD 620S | Sennheiser United States
Click on the link above to go to the official product page and get more detailed information about the product.

HD 620S Closed-Back Audiophile Headphones | Sennheiser

HD 620S Audiophile Headphones - Features Deep Dive | Sennheiser

Customer Reviews

Updated on February 21, 2025

Showing 110 reviews of 58 reviews.

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M. KraftJune 7, 2024

Great value for the price.

I’m very happy with the sound of these headphones. Much improved low end compared to my HD 600s, without sacrificing mid to high frequency performance. The HD 620s is my new go to headphones.

ChickenSuperManJune 21, 2024

Disappointed

I bought these headphones with excitement and anticipation only to be extremely disappointed. These headphones do not even sound as good as my hyperx gaming headphones. And they are so uncomfortable. I almost cried with how terrible my experience has been with my new headphones. I’m returning these sennheiser headphones. I hope the next pair of sennheiser headphones are much more comfortable and sound better than my hyperx headphones.

JaimeJune 9, 2024

Good

Comfortable and I prefer it’s tonality to the DT770 Pro’s.

AttaraxJune 12, 2024

Excellent closed back headphone!

These have a nice warm and full sound with a surprisingly wide soundstage for a closed back. I’ve been listening to them for a few days and they continue to amaze me. Sennheiser did a great job with these, they are becoming my preferred headphone! I really like the build quality and the comfort and cushion of the deep ear pads. To me, they are definitely worthy of the HD 6X0 series in terms of sound quality! I hope to get a balanced cable for them when that becomes available.

MohamedSeptember 17, 2024

These are NOT the closed-ear HD 650 you were HOPING for!

PROS:
Great Mids
Nice feel around the head
Cable length is great

CONS:
So-So Treble
TERRIBLE Bass (unless you come from IEMs or Planars)

If you want to see HOW a closed ear headphone SHOULD sound, buy some Beyerdynamic DT770 Pro X or Pro (32 or 80 ohm) – these are overpriced and horrible comparatively

And yes, I own a pair of HD 650 – totally different and UNRELATED in every way except the Mids.

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Tech LoverAugust 13, 2024

Does it deserve to a spot in the HD 600 series of headphones?

For those familiar with Sennheiser and its legacy in the audiophile industry, then you know the HD 600 series of headphones are legendary. HD 600 came out decades ago and still are considered some of the best cans you can get under 500 dollars. HD 650 is about 2 decades old, and they’re also very highly regarded. And the HD 660 pushes the 500 dollar price point, but it is also a newer very highly regarded set of headphones. These are all open back. When I saw these HD 620s, I became curious. Did Sennheiser produce affordably priced closed back cans that are deserving of a place in the HD600 family?

Short answer is no. These are definitely nice headphones, but there are some shortcomings. First, the bass. These headphones lack bass. The entire bass is understated, from higher bass to sub bass. There is little to no rumble in these cans. These do have a lot of high frequency presentation, but the highs are a bit veiled, as is the case with the signature Sennheiser sound. Highs lack detail. I’m very sensitive to Sennheiser’s veil, and these are no different. Where these headphones do shine is in the mid range. Vocals and mid-frequency instruments are front and center with these cans. Sound stage of these is comparable to the sound stage of HD 600 and HD 650s. Having the same sound stage as the HD 600s, an open pair of cans, you’d think that was a good thing, but HD 600 open backs are not really know for their sound stage. The sound stage is relatively wide left to right, but there is no depth in the sound stage front to back. The left and right sounds like it’s just outside of your ears, and the middle sound stage feels like it’s inside your brain. These do sound a lot like HD 650s in terms of sound stage, but just a closed back version.

As far as fit and comfort, these headphones have a lot of clamp force. Most closed backs will have high clamp force to enhance seal and bass delivery. These definitely seal well, but the bass doesn’t really benefit from the seal. They also tend to get very hot. The ear pads are thick and soft, and with the clamp and closed-back design, these get really hot.

I did an a/b comparison with my current favorite closed back headphones, Focal Elegia, which you possibly can buy for a price similar to these, and the Focal Elegia are heads and tails better. For Focal, bass is better, the highs are rich and vibrant, and the mids are balanced with the rest of the sound spectrum and textured. Everything I dont love about these HD620s are not an issue with the Elegias.

For audiophiles, there are not a lot of options for closed back headphones. There are a couple of manufacturers who have great offerings, like Beyerdynamics and Focal, but the really good ones are pricey. About $600+ for the higher end closed backs. In the sub $500 market of headphones, there are very few “audiophile” closed back offerings. So Sennheiser is filling a void in the industry for sure…but honestly, these aren’t much better than a much cheaper good pair of Audio Technica closed backs. Phillips even has a good offering in that 100-dollar price range. Although the HD 620s fill a price point in the market that is lacking, these really aren’t much better than the best 100-150 dollar closed-back headphones from Audio Technica or Phillips, if at all. To truly get audiophile caliber sound from a closed back, you have to jump up in price to about 600-1000. Maybe 500-800 during a sale. I like that Sennheiser identified a gap in the market, but I don’t love what they filled the gap with. These are good headphones for sure, but far from what I expect at this price or from something from the HD 600 family. Testing done with Fiio BTR7 via PCM/Bluettoth, Schitt Asgard/Bifrost stack, and Peachtree Integrated Amp.

NathanNovember 4, 2024

Good sound, roomy, and fairly comfortable. Tight at first, but loosens up a bunch over time.

I have very sensitive ears, and can’t stand wearing small headphones. IEMs are also hard to find because my ear canals are much smaller than my outer ears would suggest. After trying a bunch of headphones on at CanJam SoCal (a local headphone convention), I settled on these as the best and least expensive fit. I’ve had them for a while now, and while they were very tight in terms of clamp when I got them they are now nearly perfect. The sound is fairly good out of the box, although I am using Oratory1990’s EQ preset just for that last bit of fidelity (nearly every headphone benefits from EQ at least a little). They also seem to be well built, as expected from Sennheiser’s over ear headphones. The cable is decent, not exceptional but not a replace immediately type of cable either. Certainly it’s much better than their IEM cables!

SearchingtomJune 18, 2024

What a good all-a-rounder and a real VALUE at this price point.

I have owned many headphones and I place a premium on sound, comfort and value. This headphones sounds really good especially at this price point. I admit I really don’t like the looks but once it is on your head you can’t see it 🙂 It is comfortable and seems well made overall.

I recently purchased the more expensive ND20 closed-back headphones and I probably got a defective unt because it sounded quite poor. So I was a bit nervouse when I plugged this in and then pleasantly surprised with how good it sounded – FINALLY – a good value, good sounding heaphone.

Good job Sennheiser !

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