Sennheiser HD820 Closed-Back Headphones

Sennheiser's flagship closed-back headphone, the HD 820 uses Gorilla Glass ear cup covers with a concave design borrowed from reflector telescope technology to redirect sound reflections away from the driver. The result is a closed-back headphone that sounds unlike any other.

Type and Technology

Over-ear, closed-back, dynamic. 56mm ring radiator transducer derived directly from the HD 800S, with concave Gorilla Glass ear cup covers that manage internal reflections acoustically. Handcrafted in Ireland.

Sound Character

Wide, open, and remarkably free from the congestion typical of closed-back designs. The concave glass covers and ring radiator driver combine to produce a spatial presentation that rivals many open-back headphones, while still providing meaningful passive isolation. Bass is tight and extended, midrange is natural and uncolored, and imaging is precise.

Build and Comfort

Premium construction with Gorilla Glass ear cups, a stainless steel and Microflex headband, and memory foam earpads. At 360g the HD 820 is well-balanced and comfortable for extended sessions.

Best For

Audiophiles who need or prefer a closed-back headphone but want the soundstage and transparency of a top-tier open-back design. Also ideal for late-night listening or environments where sound leakage cannot be tolerated.

What's in the Box

• Sennheiser HD 820 headphone
• 3m cable with 6.35mm jack
• 1.85m cable with 4.4mm balanced jack
• Hard shell carry case

Specifications