Sennheiser HD 820 Headphones Black

Closed Back

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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.

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

The critics said closed headphones could never sound as immersive as their open-air counterparts. They said physics would never allow it. To that we simply said, “listen”. The HD 820 combines an innovative glass reflector and ring radiator transducer technology for a benchmark listening experience.

FEATURES
- The new audiophile standard for closed-back headphones
- Concave Gorilla Glass reflectors deliver impressive spatial sound reproduction
- Ultra-ergonomic adjustable metal headband with inner damping element
- Developed in Germany and precision-built at Sennheiser’s state-of-the-art Ireland plant
- Frequency Response: 6 - 48,000 Hz (-10 dB)
- 56mm Ring Radiator dynamic transducer system
- Acoustic absorber system prevents frequency masking for unheralded detail
- Luxuriously comfortable microfiber ear and headband padding on key contact points
- Impedance: 300 ohms
- Total harmonic distortion: 0.02 % (1 kHz 1 Vrms)

SPECIFICATIONS
- [Frequency response (speaker)] 6 Hz - 48,000 Hz
- [Sound pressure level (SPL)] 103 dB (1 V)
- [Impedance] 300 Ω
- [Total harmonic distortion (THD)] < 0.02% (1 kHz, 100 dB)
- [Cable length] 3 m
- [Adapter] XLR-4, balanced, 4-pin Stereo jack plug: 1/4" (6.35 mm), unbalanced, 3-pin 4.4 mm, balanced, 5-pin
- [Transducer principle] dynamic, open
- [Weight] 360 g
- [Ear coupling] circumaural
- [Magnetic field] 10.5 mT

INCLUSIONS
- 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
- Instruction manual
- Storage box
- Microfiber cloth

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.

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

6.35 mm / 4.4 mm

Cable length

Weight

360 g without cable

Transducer principle (headphones)

dynamic, closed

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