Sennheiser HD 820 vs Sennheiser HD 800 S – Full Comparison & Verdict (2026)

Country of Origin: Germany. New reference for closed back headphones. 56mm Ring Radiator dynamic transducer system. Closed, circumaural dynamic stereo, headphones. The new audiophile standard for closed-back headphones. Enjoy audiophile sound quality, whether at home or on the move. Natural hearing experience - realistic sound field with minimal resonance. Ultra-ergonomic adjustable metal headband with inner damping element. Acoustic absorber system prevents frequency masking for unheralded detail. Concave Gorilla Glass reflectors deliver impressive spatial sound reproduction. Luxuriously comfortable microfiber ear and headband padding on key contact points. Developed in Germany and precision-built at Sennheiserâ€™s state-of-the-art Ireland plant Glass covered ear cups make the transducer visible, this special design innovation reflects the sound from the transducer to an absorber to minimize distortion.

High-class matte black metal parts. Additional cable with balanced XLR4 connector. Metal headband with an inner damping element. Open, circum-aural dynamic stereo headphones. Handcrafted ear pads, made of microfiber fabric. Further optimized reference class in wired headphones. Enhanced sound reproduction achieved through absorber technology. Delivered by the high-performance transducer with incredible extension. Specially tuned balanced, impedance matching cable with low capacitance. Natural hearing experience - realistic and natural sound field with minimal resonance. Biggest transducers ever used in headphones including new innovative dynamic transducer design.

Key Differences

The frequency response differs (4 Hz - 51000 Hz vs 6Hz - 48KHz), which can influence how well the headphones reproduce lows, mids, and highs. There is a noticeable difference in weight (330 Gm vs 360 GM), which may affect comfort during extended use. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. If you're comparing Sennheiser HD 800 S and Sennheiser HD 820, both models offer a strong combination of sound performance, comfort, and modern wireless features. Impedance levels vary (300 ohm vs 300 Ohms), which can affect compatibility and audio output when used with different devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. The driver size differs between the two (42 mm vs 56 mm), which can influence sound depth, bass response, and overall audio clarity. Sennheiser HD 800 S and Sennheiser HD 820 offer different noise cancellation capabilities (AMBIENT vs Noise Cancelling), which can impact how effectively they block external noise.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.

Top Differences

Noise Cancelling: AMBIENT vs Noise Cancelling
Driver Size: 42 mm vs 56 mm
Weight: 330 Gm vs 360 GM
Impedance: 300 ohm vs 300 Ohms

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Key Differences

Top Differences