Sennheiser HD 820 Closed-Back Hi-Res Audiophile Headphones, German Precision, 56 mm Ring Radiator Transducers, Resonance-Reducing Glass Covers, Low Distortion, Rich Bass, Premium Comfort, 2Y Warranty

Price: ₹2,09,990 - ₹1,54,989.00
(as of Feb 27, 2026 01:57:43 UTC – Details)

From the manufacturer

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.

GERMAN-MADE AUDIO ENGINEERING – Precision-engineered and manufactured in Germany for uncompromising quality, performance, and durability
AUDIOPHILE-GRADE DETAIL & CLARITY – Wide frequency response (12Hz–43.8kHz) delivers every nuance in the music — from rich bass to sparkling highs
56MM RING RADIATOR TRANSDUCERS – Features Sennheiser’s signature ring radiator drivers for ultra-low distortion and an expansive, natural soundstage.Innovative closed-back architecture delivers an open-back listening experience with superior noise isolation and acoustic clarity
GLASS REFLECTOR TECHNOLOGY – Unique concave Gorilla Glass covers minimize resonance and reflect stray sound waves into special absorbers for maximum detail and accuracy
BALANCED 4.4MM AUDIO CONNECTION – Includes a high-end 4.4mm balanced cable to reduce crosstalk and preserve signal purity across your high-resolution audio source
LUXURIOUS COMFORT FOR LONG SESSIONS – Soft microfiber ear pads, premium build materials, and ergonomic headband provide long-lasting listening comfort
RUGGED & ELEGANT BUILD QUALITY – Constructed with high-grade components, including metal headband and glass elements, built for years of audiophile use
INCLUDES PREMIUM ACCESSORIES – Comes with a balanced 4.4mm cable, unbalanced 6.3mm cable, microfiber cloth, and protective storage box
BACKED BY A 2-YEAR WARRANTY – Enjoy peace of mind with Sennheiser’s trusted quality assurance and after-sales support.
SPECIFCATIONS – Transducer principle : dynamic, closed,Impedance : 300 Ohms, Frequency response (speaker) : 6 Hz – 48,000 Hz, Sound pressure level (SPL) : 103 dB (1 V), 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, Ear Coupling - circumaural, Magnetic Field : 10.5 mT