
Sennheiser HD 820 Closed-Back Audiophile Headphones - Black | 507435
- Closed-Back Design with Open-Back Transparency
- Concave Gorilla Glass Transducer Covers
- 56 mm Ring Radiator Transducers
- 6 Hz - 48,000 Hz Frequency Response
- 300 Ohm Impedance
- Balanced XLR-4, 4.4 mm Pentaconn and 6.35 mm Cables
Product Overview
Sennheiser HD 820 Closed-Back Audiophile Headphones - Black | 507435
For decades, audiophiles accepted that the very best headphone sound required an open-back design. The HD 820 renders that assumption obsolete. This closed-back reference headphone uses innovative technology to sound breathtakingly transparent and natural while providing the isolation that open-back designs cannot offer.
Gorilla Glass reflector technology
The outer shell of each ear cup is formed from a concave pane of Gorilla Glass. This specially shaped glass reflects sound waves away from the listener and into an absorption chamber, dramatically reducing the resonances that normally compromise closed-back headphones.
Ring radiator transducers
Inside, 56 mm ring radiator transducers deliver the same effortless detail and wide soundstage that made the HD 800 family famous. Bass extends down to 6 Hz, while the treble remains smooth and refined even on demanding recordings.
Built for balanced listening
The HD 820 is supplied with three cables: a 6.35 mm unbalanced cable, a 4.4 mm Pentaconn balanced cable and an XLR-4 balanced cable. Handcrafted microfibre ear pads and a robust metal frame ensure comfort and durability over many years of listening.
Combining the isolation of a closed-back design with the openness of a reference open-back, the HD 820 is the natural choice for audiophiles who need high-end sound without disturbing those around them.
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