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Black open-back over-ear headphones with large ring-radiator drivers, metal headband, microfibre ear pads, 300 ohms

Sennheiser

Sennheiser HD 800 S headphone, 56mm ring radiator, 300 ohms, black

SKU CH-NJ59-C4MMC

Open-back reference headphones with 56mm ring-radiator drivers, 300-ohm impedance and a balanced XLR4 cable included

  • Driver size40 mm
  • Frequency range4–51,000 Hz (-10 dB)
  • Headphone style< 0.02 % (1 kHz 1 Vrms)
  • Impedance300 ohms
  • Connection6.3 mm
  • Wearing styleCircumaural
  • Open-back design creates a natural, spacious soundstage
  • 56 mm ring-radiator drivers deliver rich detail with very low distortion
  • Innovative absorber technology smooths frequency peaks for accurate reproduction
  • Angled ear-cup geometry directs sound waves for immersive spatial imaging
  • Includes both 6.3 mm single-ended and 4.4 mm balanced cables

Reference Class Audiophile Headphones

The Sennheiser HD 800 S is an open-back, circumaural headphone built for critical listening. Its 56mm ring radiator transducers and absorber technology reduce resonance peaks across a 4–51,000 Hz response. A 300-ohm impedance demands a dedicated amplifier to reach reference volume levels.

Suited for Dedicated Desktop Listening

This model serves buyers who prioritise spatial accuracy and low distortion (<0.02% THD) in a stationary setup. It is not for portable use, commuters needing isolation, or listeners without a high-quality headphone amplifier capable of driving 300 ohms properly.

Build Integration and Cabling

The package includes a 9.84 ft single-ended 6.3mm cable and a balanced XLR4 cable, freeing you from sourcing aftermarket leads. The lightweight 330g frame with damped headband and microfibre pads supports extended sessions, while the open-back design requires a quiet room to prevent sound leakage.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $1,416.99
Pricier than about 95% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameSennheiser
Model nameHD800S
Part number506911
Product typeOver the Ear
Product colorBlack
Audio & video
Driver size40 mm
Frequency range4–51,000 Hz (-10 dB)
Headphone style< 0.02 % (1 kHz 1 Vrms)
Impedance300 ohms
Wearing styleCircumaural
Ports & slots
Connection6.3 mm
Size & build
Cord length9.84 ft (3 m)
Product weight330g
Compatibility
Compatible withUniversal
In the box
In the boxHD 800 S
Cable with 6.3 mm jack connector
Balanced cable with XLR4 connector
Microfibre cleaning cloth
Manual
USB flash drive

Questions about this item

Do I need a dedicated headphone amplifier to drive the 300 ohm impedance?

Yes, the 300 ohm input impedance requires a dedicated headphone amplifier or high-output audio interface to reach proper listening levels and control the 56mm ring radiator drivers effectively.

Will the included 6.3mm and XLR4 cables connect directly to my vintage receiver's 1/4-inch headphone jack?

The 6.3mm terminated cable plugs straight into a vintage 1/4-inch headphone jack, while the balanced XLR4 cable requires a matching XLR4 headphone output or adapter not supplied in the box.

How can I verify the <0.02% THD spec is being achieved after setup?

Play a 1 kHz test tone at 1 Vrms through a calibrated measurement microphone; distortion readout should stay below 0.02% if the amplifier, cables and headphones are all functioning correctly.

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