Sennheiser HD 820 | Over-the-Ear Headphones - OnWard PH

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Sennheiser HD 820 Over-the-Ear Audiophile Reference Headphones

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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 HD 820 delivers an unparalleled, reference-grade audiophile listening experience in a closed headphone

*Innovative glass reflectors and frequency absorber systems replicate the wide open characteristics of audiophile speakers in a sealed earcup design

*56mm Ring Radiator transducers and Glass Reflectors provide total immersion in your music with absolute detail and a breathtaking soundstage

*Made in Germany using the finest materials for sound integrity, build quality, and luxurious comfort

*Connectivity technology: Wired

*Included components: HD 820 headphone, 6.35 millimeter cable, 4.4 millimeter Pentaconn cable, owners manual


*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 earJack plug: 6.35 mm / 4.4 mm

*Cable length: 3m

*Weight: 360 g without cable

*Transducer principle (headphones): dynamic, closed


  • Headphones HD 820 (closed, dynamic headphones)
  • Connection cable: ¼” (6.35 mm) stereo jack plug (connected ex works), unbalanced
  • 4.4 mm stereo jack plug, 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


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