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Sennheiser

SENNHEISER HD 820 Over-the-Ear Audiophile Reference Headphones - Ring Radiator Drivers with Glass Reflector Technology, Sound Isolating Closed Earcups, Includes Balanced Cable, 2-Year Warranty (Black)

  • Based on 88 reviews
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Availability: Only 1 left in stock, order soon!
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Arrives Saturday, Mar 14
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Features

  • The Technology of Transparency
  • An All-Star Team of Excellent Components
  • Audiophile Connectivity
  • The Look of Superior Quality

Description

The new audiophile standard for closed-back headphones for audiophiles there wasn't any doubt: When it came to circumaural headphones the very best sound required an open back design. This axiom has now been rendered obsolete by the youngest member of the Sennheiser Audiophile Range: The closed dynamic HD 820 employ an innovative technology that makes them sound breathtakingly transparent and natural. Developed and made in Germany they offer an incredibly realistic natural sound field and also stand apart by the extraordinary attention given to every detail of their design. Their soft comfortable microfiber ear pads are hand crafted providing excellent attenuation of ambient noise while the robust metal headband includes an inner damping element. Get ready for an unparalleled listening experience. Into the great wide open vivid wide transparent natural. The sound field of the HD 820 is wide open. Which is not what you would expect at all from closed circumaural headphones. With the HD 820 you can explore and rediscover your music in absolute reference-class quality without intruding on the aural comfort zone of others. Thus the HD 820 not only open up the sound field but also new places and opportunities for you to enjoy your music. The Technology of Transparency The breakthrough transparent performance of the HD 820 has been achieved through a special innovation: Their legendary Sennheiser Ring Radiator transducers are fitted with unique glass covers. Revealing the great look of the technical component within this visually striking feature was actually developed wholly in service to the sound: The concave glass reflects the sound waves from the rear of the transducer to an absorber which results in minimal resonance. Thus the sound waves are effectively gone like they would be in open headphones. An all-star team of excellent components made in Germany the HD 820 stand apart also because of the extraordinary attention that is given to ever.

Brand: Sennheiser


Color: Black


Ear Placement: Over Ear


Form Factor: around the ear


Impedance: 300 Ohms


Noise Control: Sound Isolation


Frequency Response: 43800 Hz


Headphones Jack: 6.35 mm Jack


Model Name: HD 820


Connectivity Technology: Wired


Included Components: HD 820 headphone, 6.35 mm cable, 4.4 mm Pentaconn cable, owners manual


Age Range (Description): Adult


Material: Metal,Microfiber


Specific Uses For Product: Music


Recommended Uses For Product: Music Listening, Audio Recording, Audio Monitoring


Compatible Devices: Laptops, Desktops, Music Production Equipment, Smart Speaker, Television, Car Audio Systems


Control Type: Noise Control


Cable Feature: Retractable


Item Weight: 360 Grams


Water Resistance Level: Not Water Resistant


Customer Package Type: Standard Packaging


Style: High-End


Control Method: Push Button


Number of Items: 1


EU Spare Part Availability Duration: 2 Years


Cable Length: 4.4 Millimeters


Audio Driver Type: Dynamic Driver


Carrying Case Material: Microfiber


Carrying Case Color: Black


Audio Driver Size: 56 Millimeters


Earpiece Shape: Rounded, over-ear


Series Number: 820


Hardware Interface: 3.5mm Audio


UPC: 615104300439


Input Device Interface: Audio jack


Supports Bluetooth Technology: No


Special Feature: around the ear


Global Trade Identification Number: 39


Manufacturer: Sennheiser


Item Weight: 12.7 ounces


Item model number: HD 820


Batteries: 1 Lithium Ion batteries required.


Is Discontinued By Manufacturer: No


Date First Available: May 16, 2018


Units: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Mar 14

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Top Amazon Reviews

    • TOTL Endgame but source dependent! Like Tyl, I'm out!
Review Image by C. A. Bayko C. A. Bayko
I am semi-retired, but back on the road full-time air travel weekly. For years I have been buying high-end headphones, in the $500-$2800. range. I spend hours reading reviews, analyzing cables and Daps. I use most items a short time, sell them at a loss, and pursue the next great sound. It is important to me travelling 80% of the time, to be able to have my home listening experience on the road, because when I'm travelling, that is my life. So knowing that I have had Sennheiser, Oppo, Focal, Sony, Audeze, Grado & Mr. Speakers to name a few. This is important for you to understand as to why my review is such. There are many variables influencing sound, the quality of the file, the cable, the DAC /AMP, and the actual Headphones. Knowing that, when we look at HP reviews we have to carefully look at those variables, as well as the listeners preferences, to determine how the review applies to you. In my case the music I like is Jazz, Classical, singer /songwriter and Broadway and Movie Soundtracks. Across all of the years, the most fascinating pair of headphones I ever owned was the Sennheiser H800. The soundstage, detail, timber, the note extension, the air were aspects I never experienced with any other headphones. I always went back to the HD800s as a reference sound, to check the tonality of a voice, the depth of strings, the quality of an oboe or flute, the strike of a piano key. The treble could get a little sibilant, and the bass a little lean, but they sparkled. I sold them because they were open, I was seldom home and I seldom listened to them. Recently back on the road, and after purchasing the most high-end DAP /AMP I had ever owned the Cayin N8, I searched again for a good closed back sound. The Sony WMZ 1000v3, Focal Elegia, Mr Speakers C, AKG N90, Sony 1ZR, I was considering the new Focal Stellia. I became aware of the Sennheiser HD820, never knowing they had been released. From the moment I put them on, the reference level sound I remember came back to me. The depth, the sparkle, the range, the timber, taking a semi-sibilant alto vocal, and giving it breadth, neutral and sibilance gone. I know I didn't want the Senns because of the 300 Ohms, and dependence upon an amp, but I have to say, they sing like no other. I've had them about 2 weeks, have about 50 hours on them. I bought a Moon Audio Black Dragon Premium balanced cable, to replace the long stock cable, with a shorter length for travel, more durable connectors and best sound. I bought the Accessory House Global 2XL case for travel. Have worn them on 8 flights. They are noise isolating, and frankly good enough where I can enjoy the music. I'm not really a fan of "electronic" headphones. I have felt, when I retire officially these Sennheiser HD820 and my Sony Z1R are my end game headphones. I've been through everything but electrostats, and these give me awesome reference sound and snuggle warmth with the Sony's. After purchasing I still follow reviews and keep reading the that the Sennheiser are at a High end Treble peaky, and the Sony's are more warm, and maybe something like the Focal Stella and Meize Empyrean are the in the middle, not sibilant, not bassy, but best all arounders. So this morning I'm thinking how can what I hear be so different. How can I think the HD820s are the best all arounders for me. Every HP is a compromise somewhere, but I think the HD 820s are the most enjoyable and perfect. So I did a comparison between the HD820s powered by the Cayin N8 balanced, and my Sony NW zx300. In the quiet of my home I Listened to a high resolution file of DreamBoat Annie, one of my all time favorites, for dynamics, sparkle, bass, mids and treble and soundstage. On the Sony ZX300 the top end sounded thin, in fact a tad sibilant, the whole sound lacked the end game sound I had been hearing. I went to the Cayin N8, Ahh...Sennheiser HD820 I am fully satisfied with, the comfort, the build quality and the sound, what more could I want. So I know there are others out there buy .High-end Headphones, and search for great sound. Sound is subjective, but I have learned a lot from other reviewers, in order to gain a perspective. Get confused by some reviews that raise a product on a pedestal, and others that say the same product is middling. I know this is a long review, without measurements and spectrum comparisons. But I hope it will help others. No single Headphone does it all. but in your private listening room, I am convinced that the Sennheiser deliver everything anyone would ever want, and if stuck on an island or stopping all future purchases with the HD820, you will enjoy them, you will hear detail you never knew was there, transported to another realm, and enjoy the music, taking into consideration all the variables. Using the N8 and quality files, there is no fatiguing highs, and there is plenty of bass, and everything in the middle. This may be my last HP review, thank you amazon for the opportunity to share and help others in the community, enjoy the music, Chip out!* (*reference to guru Tyl Herstens, who I followed for years, and is now downsized and enjoying the world! God Bless on your Journey!) ... show more
Reviewed in the United States on March 23, 2019 by C. A. Bayko C. A. Bayko
    • Closed-Backs at its Best
Review Image by Cmiri Cmiri
Review Image by Cmiri Cmiri
Review Image by Cmiri Cmiri
Review Image by Cmiri Cmiri
Review Image by Cmiri Cmiri
l've been an audio enthusiast (not to call me 'audiophile') since 2013. l've owned many of the best headphones in the market from some of the (considered) top-brands like Sennheiser, Audeze, Hifiman or Beyerdynamic. Currently, l own the Sennheisers HD800, HD820 and HD650, Hifiman (1st gen) HE400 and Beyerdynamics DT770 Pro (250 ohms). l have a bunch of other headphones that l like in some ways (Fidelio X1, Denon AH-D600 and others), but l hardly use them because l've done enough of testing: l now know what l like so l stick to that. I bought the balanced 4-pin XLR Sennheiser CH800s for my HD800, l use an audio adapter 4.4mm to XLR for the HD820 and l terminated my HE400 to 4-pin XLR (also the Denons). All the other HPs are Single Ended. LISTENING BEHAVIOUR: When l put on a pair of headphones, l know what l'm going to watch or listen to so l decide accordingly. For example: - Am l going to casually listen to music in my sunroom? Then HD650s with a portable amp and the phone as a source. - Am l going to watch a movie or listen to music more critically? HD800. - Is there noise of any kind? Do l feel the 'energy' of the morning at home (as quiet as my neighborhood and home are)? Then 820 for the mild isolation properties they have (not huge, but certainly better than an open-back HP). - Do l want a different flavor to my music? HE400. My headphone amplifier is an Audio-GD Reference 10.32. HD820 Personal Impressions: l've had these HPs for longer than 1 month now. The easy (almost) silly way to describe them would be saying they're a 'relatively similar closed-back version of the HD800s.' They do share some of the characteristics that made the HD800s so great (impressive 3D soundstage, imaging, instruments placement) then they add their own features (less realistic timbre, better micro-dynamics). Compared to the HD800 (non 's') the HD820 would have a 'slightly' elevated bass and a 'non problematic treble.' (*Please note that the HD800 treble is problematic in lower quality amps. Recently, just for fun, l bought a Fiio K7. The HD800 treble was awful, l deeply disliked it. Then l bough the K9 ESS and K9 Pro ESS and oh, the treble was beautiful again. Not Reference 10.32 beautiful, but perfectly listenable and yes, still beautiful. Those Fiio k9 ESS amps sound great but are extremely, severely unreliable. l don't recommend them). The downside of the HD820 is that, sometimes, the vocals sound weird, off, distant, you name it. Just not right. But that only happens sometimes, no often, with specific songs. When it happens, you'll notice it and you'll dislike it. But, again, that's the exception, not the norm. Like the HD800, the HD820 are 'very' capable of producing thunderous bass should the song be recorded like that. These 2 HPs are faithful to the recordings, which means that, if the bass isn't present in the recording, you won't hear it and, if the bass should be there, it'll be there. Remember that the HD820 bass is similar to that of the HD800s (slightly elevated, deviated from neutral, compared to that of the HD800, which is the most neutral, reference level of the 3). l read some people complaining about how the HD820s are so dependent on a specific head placement. Well, l don't have that problem. Maybe l have an alien head, unlike those people. Maybe my head resembles the Sennheiser's 'tunning unit' or go figure but, in my experience, when l get a bit of a hot spot on top of my head from wearing the HPs, l move them forward or backwards as needed and then, problem solved: no hot spot, no difference in sound quality or bass or anything other than restored comfort (which, by the way, is excellent, premium comfort level). l read the earpads fall off easily. Not in my experience, not to this date and, trust me, l've been putting on these bad boys on and off at least once every day since l own them. At least. l'm still to find my cat playing with an earpad that fell the night before while the HP was sitting on the stand... Some also said that the cable is awful, that it falls apart before you blink an eye. Well, if the HD820 cable is of similar quality of that of my HD800 then l guarantee you that cable is here to stay. My HD800 cables are in pristine condition. l have almost exclusively used the balanced (XLR) cable and it shows 'zero' signs of use. l'm afraid that cable is going to outlast me and the person who complained about it (and my cat). Now, this is where the HD820 differs from the HD800, and what makes it a very special proposition. The HD800 is an analytical headphone in its nature. That means you can't help but finding yourself analyzing the music while on your listening session. Even if all you want is to unwind, the HD800 will drive you to the details, it'll demand your attention. The beauty of the HD820 is in that it is absolutely capable of being an analytical headphone, but it doesn't have to. The HD820 will let you sit back and relax. It won't ask for your attention, although it may ask for your feelings, which will certainly be touched and moved with that marvelously conveyed music reproduction. Now, should you want to discover a specific tone, instrument or detail hidden in the music, just pay attention and the HD820 will reveal it to you. The paragraph above and the (mild) noise isolation the HD820 offers is where the extra cost over both the HD800 and HD800s is. Having a closed-back headphone sounding this good takes lots of engineering hours, some of them being top class German engineers. You got to pay for that. Besides, this is a premium product and you surely pay that extra for the premium, nothing new, right? Are the HD820 worth $2400 MSRP (when they first got released)? Only you can tell. Just don't let others decide for yourself, especially not 'professional reviewers' who get paid to talk and defend the interests of those who paid them to talk in the first place. I did pay for these headphones with my own money and yet, l'm not asking you to buy them or keep them, l'm asking you to decide for yourself. l hope you enjoyed reading my personal opinion about these headphones. ... show more
Reviewed in the United States on July 1, 2024 by Cmiri Cmiri
    • Be careful with ordering these through Amazon
I ordered a pair of these a couple weeks ago as a huge audiophile and after test driving a pair at a local A/V store - huge upgrade and would've been fantastic *if I wasn't sent a broken used pair on the first go*. The earcups didn't have the new sticker on them that comes with the pair and there was no audio coming from the right earcup. After unplugging the cable to inspect it was apparent that the two copper prongs that connect to the headset just weren't even there; completely broken from the cable. After returning those I had to place another order as Amazon wouldn't do an exchange and the box I received looked as though it was used as a rugby ball at some point. Clearly opened, cables a mess throughout the box, and this time while there was audio it was crackled throughout. My assumption is these were open box rebranded as new and the cables were swapped out because there's no reason a new and clean cable would be that bad of quality. After 2 passes of returns I'm going to just pick up a pair locally where I can open it in store. ... show more
Reviewed in the United States on July 6, 2022 by Kevin F.
    • excellent.
after about 3 years: still a joy to listen with this. no regrets! wow! make sure your audio source is optimal. i am not a professional, but i would recommend using a good adc to drive this properly. a marvel of engineering and excellent quality.
Reviewed in the United States on November 1, 2025 by daopi
    • Excellent but extremely overpriced
They are big but Excellent Also, extremely overpriced
Reviewed in the United States on January 13, 2025 by Tinuçi

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