SENNHEISER HD 820 Closed Back Over Ear Wired Audiophile Headphones

Discover the world's most refined closed-back listening experience with the SENNHEISER HD 820 Closed-Back Over-Ear Wired Audiophile Headphones. At the heart of the HD 820 are custom 56mm Ring Radiator transducers manufactured in Germany, designed to produce exceptional detail, precision, and ultra-low distortion. Unlike conventional closed-back headphones, the HD 820 uses unique concave Gorilla® Glass ear cup covers that direct sound waves into integrated absorber systems for a remarkably open, spacious sound while maintaining excellent isolation.

Key Features of Sennheiser HD 820

Reference-Grade Closed-Back Audiophile Design

Flagship closed-back tuning delivers high-end sound for environments where open-back leakage isn't acceptable, without sacrificing soundstage or air.

Custom 56mm Ring Radiator Transducers

The same Ring Radiator drivers from Sennheiser's flagship open-back lineup produce ultra-low distortion and an extended frequency response.

Innovative Gorilla® Glass Ear Cup Design

Concave Gorilla Glass covers direct internal reflections into absorber elements, recreating the open feel of an open-back design in a fully closed enclosure.

Wide, Natural Soundstage Presentation

Sound is rendered with a spaciousness rarely heard from a closed-back headphone, producing accurate imaging and convincing instrument placement.

Premium German Engineering and Craftsmanship

Handcrafted in Germany using precision-machined components, the HD 820 is built for a lifetime of high-end listening.

Balanced and Unbalanced Premium Cables

Includes 6.3mm stereo, 4.4mm balanced, and XLR balanced cables — ready for any flagship headphone amplifier or balanced DAC system.

Product Specifications

Brand: Sennheiser

Model: HD 820

Design: Closed-back, over-ear, wired

Driver: 56mm Ring Radiator transducer

Ear Cups: Gorilla® Glass concave

Ear Cushions: Microfibre

Cables: 6.3mm, 4.4mm balanced, XLR balanced

Origin: Handcrafted in Germany

Use Case: Audiophile listening, mastering, critical reference

Pairing: Best with high-quality amplifier or DAC

What's Included

1 × Sennheiser HD 820 Headphones

1 × 6.3mm Stereo Cable

1 × 4.4mm Balanced Cable

1 × XLR Balanced Cable

1 × Storage Box

1 × User Documentation