Sennheiser HD 820 Closed Back Headphones

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What HFL Thinks

Sennheiser HD 820 Headphones - At HFL we truly believe that Headphones are a great way to listen to your favourite music, to help get you really close to your favourite artist or more intimate with a recording that you know really well and with the extra insight headphones give, you really can hear things that you never knew existed in a recording before. HiFi Lounge are now part of an exclusive list of Sennheiser dealers known as Club Orpheus, meaning that we have the best that Sennheiser have to offer on permanent demo whether that be Audiophine, Wireless or In Ear Headphones or Headphone Amps, so why not pop in to HFL to hear what Club Orpheus has to offer for you

Taking Pre-Orders Now, Please call, £200 Deposit Required!

HD 820 Overview

With these groundbreaking closed dynamic headphones passionate music lovers can now enjoy their music at an audiophile level wherever they please, at home or on the move. Featuring unique glass transducer covers that minimize resonances, the HD 820 are simply the most transparent-sounding closed headphones in the world, extending the boundaries of what has been achieved in sound reproduction with closed type headphones up to now.

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 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.

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.

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.

What's in the box?

  • 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
  • microfiber cloth

Technical Data

  • Impedance - 300 Ohms 
  • Frequency response (Headphones)12 - 43800 Hz (-3 dB) 6 - 48000 Hz (-10 dB) 
  • Sound pressure level (SPL)103 dB at 1 kHz, 1V 
  • Ear coupling - around the ear 
  • Jack plug - 6.3 mm / Pentaconn / (XLR4) 
  • Cable length - 3m 
  • Weight - 360 g without cable 
  • Transducer principle (headphones)dynamic, closed 

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HiFi Lounge is proud to be one of a select few Bryston dealers in the UK who now come under the new Bryston Centre of Excellence initiative.

PMC speakers (Brystons UK distributer) are re-affirming their commitment to the development of Bryston for domestic use in the UK through the creation of a network of Bryston Centres of Excellence, PMC have appointed Tom Barron to the position of Bryston account manager, here is what he had to say about the new venture - account manager, here s what Tom had to say on the new venture -

"I will be working with a carefully selected group of retailers across the UK so we have strong geographical coverage that puts Bryston within easy reach of audiophiles up and down the land. Each Centre of Excellence will receive in-depth training to ensure they are fully conversant with all aspects of the brand, to enable them to serve their customers with confidence."

HiFi Lounge have been big fans of Bryston for many years now, owning much of their equipment personally before starting HiFi Lounge. We even started the always active Bryston Owners Thread on AVForums to which we contribute regularly, so it really is a privilege to be part this new scheme. We have a vast knowledge regarding the current Bryston range of which we have most on demo, so if you have any questions or would like to come in for a listen please do not hesitate to get in touch. There is nothing we like more than talking about and listening to Bryston equipment.