Sennheiser HD 820 Headphones

Code: 507435
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3899,00 лв
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Manufacturer Sennheiser

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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.
Into the great wide open

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.
The technology of transparency

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 every detail: From the extra comfortable handcrafted ear pads that insulate the listener from ambient noise, to the silvercladded OFC cables and gold-plated plugs, to the robust metal headband with an inner damping element. This package offers an unparalleled listening experience, which can even be improved by the Sennheiser HDV 820 amplifier for dynamic headphones – the perfect companion to the HD 820.
An all-star team of excellent components

Audiophile connectivity

Only what gets in can eventually get out. That’s why the HD 820 come with a specially tuned symmetrical, impedance-matching cable with low capacitance and a balanced 4.4 mm gold plug, which offers superior characteristics in contact resistance, and thus in sound.
Audiophile connectivity

The look of superior quality

A well-conceived audio component always looks good – inside and out. With their unique glass covers the HD 820 display all the evidence to prove this. They are an aesthetical timeless classic and a natural technical beauty.
The look of superior quality


  • Closed, circumaural dynamic stereo headphones
  • Enjoy audiophile sound quality, whether at home or on the move
  • Natural hearing experience – realistic sound field with minimal resonance
  • Glass covered ear cups make the transducer visible. This special design innovation reflects the sound from the transducer to an absorber to minimize distortion.
  • Handcrafted ear pads, made of high-quality microfiber fabric
  • Metal headband with an inner damping element
  • Special high precision headphone connectors
  • Cable with 6.35 mm jack plug
  • Cable with balanced 4.4 mm jack plug
  • 2-year warranty

What's in the box?

  • HD 820 Headphones (closed, dynamic)
  • Connection cable: ¼" (6.35 mm) stereo jack plug (connected ex works), unbalanced
  • 4.4 mm stereo jack plug, balanced
  • Instruction manual
  • Storage box
  • Microfibre cleaning cloth
Ear Coupling:
Closed acoustic
Home Audio and TV, High-End
Sound Systems:
Frequency Response (Headphones):
12Hz - 43.8kHz (-3 dB); 6Hz - 48kHz (-10 dB)
Impedance (Headphones):
300 Ω
Sound Pressure Level (SPL):
103 dB (1 kHz / 1 Vrms)
Maximum Input Power:
500 mW
Total Harmonic Distortion (THD):
≤ 0.02 % (1 kHz, 100 dB SPL)
Transducer Principle:
Contact pressure:
~ 3,4 N (± 0,3 N)
up to 25 dB
1 x 4.4mm Pentaconn, 1 x 6.3mm stereo jack
silver-plated, oxygen-free copper cable (OFC), balanced, shielded, para-aramid reinforced, 3 m
360 g without cable
Detachable cable
Additional Accessories:
Sennheiser 6.3 mm F - 3.5 mm M adapter - Product Front
In stock
Sennheiser 6.3 mm F - 3.5 mm M Adapter
11,50 лв
Compatible Products:
Sennheiser HDV 820 Audio Amplifier
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Sennheiser HDV 820 Audio Amplifier
5279,00 лв
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