SENNHEISER HD 820 Closed-back Headphones

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Product details

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 provide an incredibly realistic, natural sound field and also stand apart by the extraordinary attention given to every detail of their design.

Their soft comfortable microfibre 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.

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.

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.

Product Code: 7588000
Ref: 875-10044-SENHD820


  • Impedance: 300 Ohms
  • Frequency response: 12 - 43800Hz (-3 dB), 6 - 48000Hz (-10 dB)
  • Sound pressure level (SPL): 103dB at 1 kHz, 1V
  • Ear coupling: around-ear
  • Jack plug: 6.3mm / Pentaconn / (XLR4)
  • Cable length: 3m
  • Weight: 360g without cable
  • Transducer principle (headphones): dynamic, closed
  • Boxed Content: headphones HD 820 (closed, dynamic headphones). Connection cable: ¼” (6.35 mm) stereo jack plug (connected ex works), unbalanced. 4.4 mm Pentaconn stereo jack plug, balanced. XLR-4 connector, balanced. USB flash drive (SD-U16L version) with instruction manual (as PDF file) and individually diffuse-field frequency response curve. Instruction manual. Storage box. Microfibre cloth

Delivery and returns

Want it tomorrow?

Order within B{String@item.nominatedCutOffTime} and choose NOMINATED DAY at the checkout.*

Collect it tomorrow

Order within B{String@item.clickAndCollectCutOffTime} and choose CLICK & COLLECT at the checkout.*

*Please note: if you add extra items to your basket, we may need to increase or change the delivery time to enable us to deliver all the items in your order in one go.

UK Delivery

  • Standard delivery


UK Click and Collect

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It's okay if you change your mind, we offer a 28 day returns policy, whether you purchased it in store or from the point you received or collected your online order.

For our online returns policy click here

Sennheiser’s HD 820 Closed-back Headphones give music lovers audiophile-level quality. Featuring unique glass transducer covers that minimise resonances, these are, quite simply, the most transparent-sounding closed headphones in the world. They extend the boundaries of what has been achieved in sound reproduction with closed type headphones up to now.

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