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Sennheiser HD 820 Review | 93 Data compared

Avg. price: ~£1,430
Form factor: over-ear
Connectivity: wired
Battery life: N/A hours
Active noise cancellation (ANC): no

Sennheiser HD 820 review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

5.3

Good

5.0

Good

6.8

Good

4.4
Gaming
Score components:
35.0%
0.0
Audio latency
25.0%
9.0
Low-latency game mode
20.0%
10
Can be used as a headset
12.0%
1.0
Noise-canceling microphone
8.0%
0.0
Battery life
0.6
Travel
Score components:
28.0%
1.0
Active noise cancellation (ANC)
24.0%
0.0
Battery life
18.0%
1.7
Weight
16.0%
0.0
Multipoint support
14.0%
0.0
Ambient sound mode
2.7
Calls
Score components:
28.0%
1.0
Noise-canceling microphone
24.0%
10
Can be used as a headset
18.0%
0.0
Multipoint support
16.0%
0.0
Battery life
14.0%
0.0
Companion app
2.7
Workout
Score components:
28.0%
1.7
Weight
24.0%
1.0
Water resistance
20.0%
4.0
IP rating
16.0%
0.0
Battery life
12.0%
10
Can be used as a headset

Best prices in UK

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Best rankings

Verdict

The Sennheiser HD 820 is a flagship closed-back audiophile headphone featuring 56mm Ring Radiator dynamic transducers and a high 300-ohm impedance. It is distinguished by its innovative concave Gorilla Glass reflectors designed to minimize internal resonances, resulting in a class-leading, expansive soundstage and a frequency response of 6 Hz – 48,000 Hz. Main pros include exceptional detail retrieval, a remarkably open and airy presentation for a sealed design, and high-end build quality with comfortable microfiber and leather hybrid earpads. However, notable cons include a polarizing tonality with a significant mid-bass to lower-midrange dip (around 300Hz), extreme sensitivity to achieving a proper seal for consistent bass response, and a high price point that may offer diminishing returns compared to its open-back siblings.

Technical Specifications of Sennheiser HD 820

Overall score

5.3

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Popularity

What it is: An indicator based on the number of reviews received by the headphones.

When it matters: When you prefer headphones that have already been chosen and reviewed by many other users.

Sound

6.6

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Active noise cancellation (ANC)

What it is: Reduces background noise using active technology

When it matters: When blocking office, travel, or aircraft noise is a priority.

Importance: HIGH

Driver type

What it is: Type of speaker driver technology used

When it matters: When the underlying sound character and driver technology matter to you.

Importance: MEDIUM

dynamic

Driver size

What it is: Diameter of the speaker driver unit

When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

Importance: MEDIUM

Number of drivers

What it is: Total number of speaker drivers per earcup

When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

Lowest frequency

What it is: Lowest audio frequency the headphones can reproduce

When it matters: When deeper bass extension matters for your music or movie listening.

Importance: MEDIUM

Good value: <=10 Hz

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Calls & Controls

2.8

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Noise-canceling microphone

What it is: Built-in microphone reduces background noise during calls

When it matters: When you take calls in busy spaces and want your voice to stay clearer.

Importance: MEDIUM

Can be used as a headset

What it is: Shows whether the headphones can handle voice chat and calls in addition to normal audio playback.

When it matters: When one pair needs to cover music, calls, meetings, and gaming chat.

Importance: MEDIUM

Number of microphones

What it is: Total number of built-in microphones

When it matters: When call pickup quality and beamforming support matter to you.

Importance: LOW

Good value: >=2

Boom microphone

What it is: Includes detachable boom microphone for voice clarity

When it matters: When you need stronger voice clarity for gaming, streaming, or work calls.

Importance: LOW

Microphone SNR

What it is: Signal-to-noise ratio of the microphone

When it matters: When call clarity matters and you want your voice picked up more cleanly instead of buried in background hiss.

Importance: LOW

Good value: >80 dB

N/A

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Connectivity

3.2

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Connectivity

What it is: Available connection methods (wired, wireless, Bluetooth, etc.)

When it matters: When the headphones need to match how you listen across wired and wireless devices.

Importance: HIGH

Bluetooth version

What it is: Version of Bluetooth technology supported

When it matters: When wireless stability, efficiency, and feature support matter more than treating Bluetooth as a box-check spec.

Importance: MEDIUM

Good value: >=5.0

N/A

Maximum Bluetooth range

What it is: Maximum wireless operating distance from source device

When it matters: When you move around rooms and want fewer dropouts from your source device.

Importance: LOW

Good value: >=10 m

N/A

Audio latency

What it is: Delay between audio and video in wireless mode

When it matters: When you watch video or play games and need sound to stay in sync.

Importance: HIGH

Good value: <60 ms

N/A

Multipoint support

What it is: Supports simultaneous connections to multiple devices

When it matters: When you switch often between a phone and a laptop during the day.

Importance: MEDIUM

N/A

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Features

2.7

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Ambient sound mode

What it is: Allows external sounds to pass through for awareness

When it matters: When you need to stay aware of traffic, voices, or announcements.

Importance: MEDIUM

N/A

EQ support

What it is: Allows customization of sound profile via equalizer

When it matters: When the stock tuning is not enough and you want to shape bass, mids, or treble to match your taste.

Importance: MEDIUM

Companion app

What it is: Dedicated mobile app for customization and updates

When it matters: When software customization, updates, and extra controls matter.

Importance: MEDIUM

N/A

Adjustable ANC levels

What it is: Allows adjustment of noise cancellation intensity levels

When it matters: When you move between quiet rooms, offices, streets, and public transport and do not want one ANC setting for every situation.

Importance: LOW

Good value: >=4

N/A

Voice assistant support

What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant

When it matters: When hands-free control is part of your daily routine.

Importance: LOW

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Battery

1.0

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Battery life

What it is: Playback time on a single charge

When it matters: When you commute, travel, or work long shifts and do not want charging breaks to interrupt listening.

Importance: HIGH

Good value: >45 hours

N/A

Battery life with ANC

What it is: Playback time with active noise cancellation enabled

When it matters: When you plan to keep noise cancellation on for most of the day.

Importance: HIGH

Good value: >40 hours

N/A

Charging time

What it is: Time required for a full battery charge

When it matters: When you often need the headphones ready again after short breaks.

Importance: MEDIUM

Good value: <=2 hours

N/A

Quick charge

What it is: Provides quick playback time with short charging period

When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: MEDIUM

N/A

Battery capacity

What it is: Total energy storage of the internal battery

When it matters: When you are estimating how much battery headroom the design may have before relying only on the official runtime claim.

Importance: MEDIUM

Good value: >=720 mAh

N/A

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Design

5.8

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Brand name

What it is: The manufacturer or brand of the product.

When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Sennheiser

Form factor

What it is: Overall design type of the headphones (over-ear, on-ear, in-ear, etc.)

When it matters: When comfort, portability, and isolation depend on the overall headphone style.

Importance: HIGH

over-ear

Weight

What it is: Total weight of the headphones

When it matters: When long listening sessions make wearing comfort more important.

Importance: MEDIUM

Good value: <150 g

Acoustic design

What it is: Type of acoustic design (open-back, closed-back, semi-open)

When it matters: When you need the right balance of isolation, leakage, and soundstage.

Importance: HIGH

closed-back

Clamp force

What it is: Amount of clamping pressure applied to the head

When it matters: When comfort and fit security matter during long sessions.

Importance: MEDIUM

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Sennheiser HD 820 vs the average headphone

Why is Sennheiser HD 820 better than the average headphone?

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Hi-Res Audio certification
Sennheiser HD 820 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
What it is: Certified for high-resolution audio playback
When it matters: When official support for high-resolution playback matters to you.
Importance: LOW
Sennheiser HD 820 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
16 mm larger driver size
Sennheiser HD 820 uses a larger driver size than the average headphone (56 mm vs 40 mm). The average headphones use a driver size of 40 mm.
What it is: Diameter of the speaker driver unit
When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.
Importance: MEDIUM
Sennheiser HD 820 uses a larger driver size than the average headphone (56 mm vs 40 mm). The average headphones use a driver size of 40 mm.56 mm vs 40 mm
Spatial audio support
Sennheiser HD 820 supports spatial audio, the average headphone does not. 30.7% of headphones support spatial audio.
What it is: Supports immersive surround sound playback
When it matters: When movies, games, and immersive mixes are part of your listening.
Importance: MEDIUM
Sennheiser HD 820 supports spatial audio, the average headphone does not. 30.7% of headphones support spatial audio.
12 Hz lower bass extension
Sennheiser HD 820 has a lower lowest frequency than the average headphone (6 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
What it is: Lowest audio frequency the headphones can reproduce
When it matters: When deeper bass extension matters for your music or movie listening.
Importance: MEDIUM
Good value: <=10 Hz
Sennheiser HD 820 has a lower lowest frequency than the average headphone (6 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.6 Hz vs 18 Hz
28,000 Hz higher treble extension
Sennheiser HD 820 has a higher highest frequency than the average headphone (48,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
What it is: Highest audio frequency the headphones can reproduce
When it matters: When treble extension and overall frequency reach matter to you.
Importance: MEDIUM
Good value: >=24000 Hz
Sennheiser HD 820 has a higher highest frequency than the average headphone (48,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.48000 Hz vs 20000 Hz
0.28 % lower distortion
Sennheiser HD 820 has a lower total harmonic distortion than the average headphone (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
What it is: Percentage of harmonic distortion in audio output
When it matters: When cleaner sound reproduction matters at louder volumes.
Importance: LOW
Good value: <=1%
Sennheiser HD 820 has a lower total harmonic distortion than the average headphone (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.0.02 % vs 0.3 %
20 mm more spacious earcup height
Sennheiser HD 820 offers more spacious earcup height than the average headphone (80 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
What it is: Internal height of the earcup cavity
When it matters: When larger ears need enough space inside the earcups.
Importance: MEDIUM
Sennheiser HD 820 offers more spacious earcup height than the average headphone (80 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.80 mm vs 60 mm
19 mm more spacious earcup width
Sennheiser HD 820 offers more spacious earcup width than the average headphone (62 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
What it is: Internal width of the earcup cavity
When it matters: When earcup fit affects comfort and pressure around your ears.
Importance: MEDIUM
Sennheiser HD 820 offers more spacious earcup width than the average headphone (62 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.62 mm vs 43 mm
20 mm more spacious earcup height
Sennheiser HD 820 offers more spacious earcup height than the average headphone (80 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
19 mm more spacious earcup width
Sennheiser HD 820 offers more spacious earcup width than the average headphone (62 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
1.8 m more useful cable length
Sennheiser HD 820 offers a more useful cable length than the average headphone (3 m vs 1.2 m). The average headphones have a cable length of 1.2 m.
0.9 lower clamp force
Sennheiser HD 820 has a lower clamp force than the average headphone (3.4 vs 4.3). The average headphones have a clamp force of 4.3.
Hi-Res Audio certification
Sennheiser HD 820 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
16 mm larger driver size
Sennheiser HD 820 uses a larger driver size than the average headphone (56 mm vs 40 mm). The average headphones use a driver size of 40 mm.
Spatial audio support
Sennheiser HD 820 supports spatial audio, the average headphone does not. 30.7% of headphones support spatial audio.
12 Hz lower bass extension
Sennheiser HD 820 has a lower lowest frequency than the average headphone (6 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
28,000 Hz higher treble extension
Sennheiser HD 820 has a higher highest frequency than the average headphone (48,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
0.28 % lower distortion
Sennheiser HD 820 has a lower total harmonic distortion than the average headphone (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.

Why is Sennheiser HD 820 worse than the average headphone?

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65.1% higher weight
Sennheiser HD 820 is heavier than the average headphone (360 g vs 218 g). The average pair of headphones weighs 218 g.
Tangle-prone cable
Sennheiser HD 820 uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
No neodymium magnet
Sennheiser HD 820 does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
1 fewer microphones
Sennheiser HD 820 has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.
No voice assistant support
Sennheiser HD 820 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
65.1% higher weight
Sennheiser HD 820 is heavier than the average headphone (360 g vs 218 g). The average pair of headphones weighs 218 g.
What it is: Total weight of the headphones
When it matters: When long listening sessions make wearing comfort more important.
Importance: MEDIUM
Good value: <150 g
Sennheiser HD 820 is heavier than the average headphone (360 g vs 218 g). The average pair of headphones weighs 218 g.360 g vs 218 g
No voice assistant support
Sennheiser HD 820 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
When it matters: When hands-free control is part of your daily routine.
Importance: LOW
Sennheiser HD 820 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
15.89x more expensive
Sennheiser HD 820 is more expensive than the average headphone (£1,430 vs £90).
Sennheiser HD 820 is more expensive than the average headphone (£1,430 vs £90).£1,430 vs £90
45.6% worse value for money
Sennheiser HD 820 has worse value for money than the average headphone (4.63 vs 6.736).
What it is: An indicator that combines the headphones' overall rating with their cost.
When it matters: When you are looking for headphones that offer a strong balance of performance, features, and price.
Sennheiser HD 820 has worse value for money than the average headphone (4.63 vs 6.736).4.63 vs 6.74
1 fewer microphones
Sennheiser HD 820 has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.
What it is: Total number of built-in microphones
When it matters: When call pickup quality and beamforming support matter to you.
Importance: LOW
Good value: >=2
Sennheiser HD 820 has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.0 vs 1
Tangle-prone cable
Sennheiser HD 820 uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
What it is: Cable designed to resist tangling
When it matters: When you often carry wired headphones in a bag or pocket.
Importance: LOW
Sennheiser HD 820 uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
No neodymium magnet
Sennheiser HD 820 does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
What it is: Uses neodymium magnets for stronger, clearer sound
When it matters: When driver construction details are part of how you compare sound hardware.
Importance: LOW
Sennheiser HD 820 does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
17.9% lower user score
Sennheiser HD 820 has a lower user score than the average headphone (6.79 vs 8.000).
What it is: A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
Sennheiser HD 820 has a lower user score than the average headphone (6.79 vs 8.000).6.79 vs 8

Calls & Controls

Graphic comparison of Sennheiser HD 820 and

Attribute category

Attribute

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Third-party reviews

United Kingdom

United States

(Reviews last updated: June 2026)

What customers like about Sennheiser HD 820?

Exceptional soundstage and imaging for a closed-back design
Outstanding build quality with premium materials like Gorilla Glass
High level of comfort suitable for long listening sessions
Improved sub-bass extension and presence compared to the open-back HD 800 S
Smooth and highly detailed treble performance
Low distortion driver that responds very well to EQ

What customers dislike about Sennheiser HD 820?

Polarizing frequency response with a notable 300Hz dip causing a 'hollow' midrange
High price-to-performance ratio compared to open-back alternatives
Isolation is weaker than typical flagship closed-back headphones
Sound signature is highly dependent on achieving a perfect seal
Bass slam and punch are considered average despite the elevated response
Requires a powerful amplifier for optimal performance

Expert reviews

enjoythemusic.com

01/04/2021

Sennheiser HD820 Stereo Headphones Review

The Sennheiser HD 820 is a closed-back headphone designed to provide better sound isolation than its famous open-back predecessor, the HD 800 S, while maintaining a similar high-end industrial design featuring 56mm ring drivers and stainless steel components. However, the reviewer found its performance disappointing in comparison, noting a significant lack of vitality and "presence"...Read more

headphoneer.com

01/03/2023

SENNHEISER HD820 REVIEW - The Headphoneer

In The Headphoneer’s review, the Sennheiser HD820 is highlighted as a visually stunning, premium closed-back headphone featuring deep-drawn Gorilla Glass and a lightweight 360-gram build that ensures top-notch long-term comfort. Performance-wise, the reviewer notes that it delivers exceptional bass extension that surpasses the HD800S, along with an impressive soundstage and pinpoint...Read more

headphonesty.com

08/03/2022

Review: Sennheiser HD820 – Almost Famous - Headphonesty

The Headphonesty review characterizes the Sennheiser HD820 as a closed-back headphone with elite, class-leading technical performance, offering a remarkably wide soundstage, articulate treble, and superior comfort. While physically and technically impressive, the review notes significant drawbacks regarding a lack of cohesive, impactful bass and an uneven, "wonky" midrange that...Read more

rtings.com

29/08/2018

Sennheiser HD 820 Headphones Review - RTINGS.com

The RTINGS review of the Sennheiser HD 820 highlights these high-end, closed-back headphones for their premium build quality, using dense plastic and metal, and exceptional comfort during long listening sessions. They deliver a deep, well-balanced bass response that extends further into the sub-bass than their open-back counterpart, along with a mostly neutral treble and a generous...Read more

head-fi.org

27/11/2025

Sennheiser HD 820 - Reviews - Head-Fi Would you like a summary of the technical performance or pros and cons found across these specific reviews?

The Sennheiser HD 820 is recognized as a polarizing flagship closed-back headphone, praised for its exceptional comfort, lightweight design, and premium Gorilla Glass construction that offers a wide, open-back-like soundstage. When perfectly sealed and adjusted with EQ, the drivers provide high resolution and precise imaging, although the stock sound is considered deeply flawed....Read more

theaudiophileworld.net

04/03/2019

The Sennheiser HD820 - Closed Back Reference when...

The Sennheiser HD820 is presented as a flagship, closed-back headphone offering excellent dynamics, a silky midrange, and robust mid-bass, delivering a private yet epic listening experience. While initially criticized for a compressed "in-your-face" soundstage, the review notes these headphones are often misunderstood by users lacking proper equipment. The review highlights that the...Read more

unheardlab.com

19/08/2023

Review: Sennheiser HD820 – Weird, but makes sense

The Sennheiser HD820 is a high-end, closed-back headphone ($1,699 RRP) that delivers a technically impressive performance but suffers from a highly polarizing, "wonky" stock tuning. Without equalization (EQ), the sound profile is heavily imbalanced, characterized by a bloated and overpowering bass boost that creates a congested low-end, alongside a "honky" and nasal midrange caused...Read more

soundstageaustralia.com

01/11/2018

Sennheiser HD 820 Headphones - SoundStage Australia

The Sennheiser HD 820 is a high-end, closed-back dynamic headphone that leverages a unique, concave Gorilla glass acoustic lens to redirect rear-driver sound waves into two absorber chambers, mimicking the airy performance of open-back models without the sound leakage. It features a large 56mm toroidal ring radiator diaphragm, a high 300-ohm impedance, a robust 360-gram build, and...Read more

hear.audio

22/10/2019

Sennheiser HD820 – Closed Dynamic Headphone Review

The October 22, 2019, review of the Sennheiser HD820 on hear.audio highlights the premium closed-back model for exceptional technical performance, including superb imaging, an expansive soundstage, and a balanced, transparent, and clear tonal profile. Key strengths noted include impressive bass extension, high-tier build quality, and versatile performance across various musical...Read more

audiosciencereview.com

23/04/2021

Sennheiser HD 820 Review (headphone) - Audio Science Review

The Sennheiser HD 820 is a large, comfortable, closed-back headphone weighing 409 grams that retails for $2,400, offering generous cup dimensions and angled drivers designed to optimize spatial properties. Objectively, its stock frequency response is highly uneven, characterized by a sharp bass dip around 60 Hz, a substantial low-midrange hump, and a significant broad notch between...Read more

majorhifi.com

20/07/2018

Sennheiser HD 820 Headphones Review - Major HiFi

The Sennheiser HD 820 is an over-ear, closed-back dynamic audiophile headphone that stands out for its innovative design and exceptional build quality. Its most distinctive design pro is the eye-catching, concave glass panel on the earcups that redirects resonant frequencies into internal sound absorbers, delivering an industrial aesthetic alongside a highly functional, comfortable...Read more

stereo.de

01/01/1970

Sennheiser HD 820 - Test Results - stereo.de

The STEREO review highlights the Sennheiser HD 820 as an excellently crafted, sonically flawless closed-back headphone that eliminates typical, muddy bass and compressed, high-frequency issues to deliver a wide, open, and high-fidelity soundstage. Pros include top-tier build quality, immense comfort for long sessions, and uncompromised, transparent audio performance. However, the...Read more

modernhifi.de

12/11/2018

Sennheiser HD 820 Review: Closed-Back Over-Ear Headphones

Review Summary The Sennheiser HD 820 is a premium, hand-crafted closed-back over-ear headphone that masterfully bridges the gap between audiophile sound quality and passive noise isolation. To mimic the open soundstage of its famous predecessors (the HD 800 series), it utilizes a patented design featuring curved, scratch-resistant Gorilla Glass covers over its 56 mm ring radiator...Read more

kopfbox.de

17/12/2023

Sennheiser HD820 reviewed by Kopfbox", "Sennheiser HD820 on Kopfbox review", "Sennheiser HD820 in the Kopfbox review

The Sennheiser HD820 is a world-class, closed-back audiophile headphone designed to replicate the legendary, expansive soundstage of its open-back sibling, the HD800S, while utilizing a closed system. Driven by a 56mm Ring Radiator driver and featuring specialized concave Gorilla-Glass reflectors to eliminate acoustic resonances, it delivers a balanced, warm, and highly precise...Read more

lowbeats.de

25/11/2018

Sennheiser HD 820 Over-Ear Headphones Review – A Stroke of Genius

The LowBeats review defines the Sennheiser HD 820 as an acoustic masterpiece, utilizing concave Gorilla Glass reflectors to achieve an open-back soundstage within a closed-back design. Praised for exceptional transparency, precise micro-dynamics, and high wearing comfort, the headphones excel in performance despite their high 300-ohm impedance requirement. Conversely, the review...Read more

hifi.de

18/10/2021

Sennheiser HD 820 Review - Premium Closed-Back Headphones

The Sennheiser HD 820 is a luxury closed-back headphone designed to deliver the expansive, "airy" sound typical of open-back models while providing the isolation of a closed housing. The review highlights its exceptional spatiality and high level of detail, noting that it reveals hidden nuances in recordings without artificially boosting high frequencies. Visually, it features a...Read more

kopfhoerer.de

02/03/2021

Sennheiser HD 820 review on kopfhoerer.de

The Sennheiser HD 820 is an audiophilic, closed-back over-ear headphone designed to deliver the wide, airy soundstage of an open-back system while maintaining excellent noise isolation. Handcrafted in Germany, it features large 56mm ring radiator transducers angled for enhanced spatial perception, protected by innovative concave glass covers that redirect internal reflections into...Read more

on-mag.fr

04/03/2019

Sennheiser HD 820 + HDV 820 Review: The transparency of glass is more than just a trick of the mind

The Sennheiser HD 820 is an ultra-premium, closed-back dynamic headphone featuring unique, concave Gorilla Glass outer shells designed to reflect back-waves into internal damping chambers. Tested alongside the matching 300-ohm HDV 820 DAC/amplifier, this setup delivers exceptional, laboratory-grade sonic transparency, neutral tonal balance, and surgical detail retrieval without...Read more

auriculares-hifi.com

20/06/2018

New Sennheiser HD 820 Headphones: First Impressions and Review

The Sennheiser HD 820 is a premium flagship closed-back headphone that heavily borrows its design and technical DNA from its open-back siblings, the HD 800 and HD 800S. Built with high-quality hard plastic, thick leather and Alcantara ear pads, and unique concave glass ear cups to manage internal reflections, it delivers an highly technical, analytical sound profile tailored for...Read more

afdigitale.it

24/08/2018

Sennheiser HD 820: Hi-End Headphones with a Heart of Glass

The Sennheiser HD 820 is an exceptional, high-end pair of closed-back headphones designed for domestic audiophile use, retailing for approximately €2,400. To counteract the typical acoustic resonances, trapped energy, and sound distortion inherent to closed-back architectures, Sennheiser innovatively implemented a concave sheet of Gorilla Glass over the drivers. This glass reflects...Read more

hifi.nl

08/09/2018

Review: Sennheiser HD 820 Headphones and HDV 820 Headphone Amplifier - Hifi.nl", "Sennheiser HD 820 Headphones and HDV 820 Headphone Amplifier Review...

The Sennheiser HD 820 is a premium, high-end closed-back headphone designed as the counterpart to the famous open-back HD 800 S, retailing at €2,399. It shares design elements with its sibling but features unique concave glass covers over its Ring Radiator transducers to absorb rear sound waves and prevent internal resonances. Tested alongside the equally priced, highly flexible HDV...Read more

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