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Sennheiser HD 820
SennheiserRanked #1

Sennheiser HD 820

Sennheiser's flagship closed-back audiophile headphone, using the same 56mm ring radiator drivers as the open-back HD 800 S but paired with concave Gorilla Glass earcup covers that redirect rear driver energy to a built-in absorber. Delivers a remarkably open, spacious soundstage for a closed-back design while offering up to 26 dB of passive isolation.

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Our Verdict

Sennheiser's flagship closed-back with 56mm ring radiator drivers and Gorilla Glass reflector technology. Delivers remarkably open soundstage for a closed-back design with up to 26 dB isolation.

Score Breakdown

Sound Quality10/10
Soundstage9.5/10
Comfort8/10
Build Quality9.5/10
Value5.5/10

Pros & Cons

Pros

  • •56mm ring radiator drivers with glass reflector technology
  • •Remarkably spacious soundstage for a closed-back
  • •Up to 26 dB passive isolation
  • •Includes balanced 4.4mm Pentaconn cable
  • •Designed and manufactured in Germany

Cons

  • •Requires quality amplification (300Ω)
  • •Very expensive
  • •Heavier at 360g
  • •Bass can feel lean for a closed-back at this price

Specifications

Driver Size56mm ring radiator
Impedance300Ω
Frequency Response12Hz-43.8kHz
Weight360g
DesignClosed-back with Gorilla Glass reflector

Quick Answers

What is the driver size of the Sennheiser HD 820?

Sennheiser HD 820 driver size: 56mm ring radiator.

What is the impedance of the Sennheiser HD 820?

Sennheiser HD 820 impedance: 300Ω.

What is the frequency response of the Sennheiser HD 820?

Sennheiser HD 820 frequency response: 12Hz-43.8kHz.

What is the weight of the Sennheiser HD 820?

Sennheiser HD 820 weight: 360g.

What is the design of the Sennheiser HD 820?

Sennheiser HD 820 design: Closed-back with Gorilla Glass reflector.

Who is the Sennheiser HD 820 for?

It suits audiophiles needing isolation, critical listeners with quality amps, those wanting closed-back without sacrificing soundstage. It is not the right pick for bass lovers, those without amplification, budget shoppers.

Is the Sennheiser HD 820 worth buying?

Sennheiser's flagship closed-back audiophile headphone, using the same 56mm ring radiator drivers as the open-back HD 800 S but paired with concave Gorilla Glass earcup covers that redirect rear driver energy to a built-in absorber. Delivers a remarkably open, spacious soundstage for a closed-back design while offering up to 26 dB of passive isolation. It ranks #1 in our Top 5 Over-Ear Headphones (Audiophile Music Picks). Sennheiser's flagship closed-back with 56mm ring radiator drivers and Gorilla Glass reflector technology. Delivers remarkably open soundstage for a closed-back design with up to 26 dB isolation.

Who Is This For?

Best For

  • Audiophiles needing isolation
  • Critical listeners with quality amps
  • Those wanting closed-back without sacrificing soundstage

Not For

  • Bass lovers
  • Those without amplification
  • Budget shoppers

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