hifiblueprint

HD 800 S

Driver
Dynamic
Enclosure
Open-back
Weight
330 g
List
$1,999.95
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Sennheiser's open-back reference, with a 56 mm ring radiator mounted at an angle so sound reaches the ear from the front. Built in Ireland, and every unit ships with its own measured frequency response plot.

Where to buy

List $1,999.95

Retailer prices checked 2026-10-21. We may earn a commission on purchases. How this works

Title block

Maker
Sennheiser
Model
HD 800 S
Made in
Ireland
Released
2016
Transducer
Dynamic
Enclosure
Open-back
Driver
56 mm
Weight
330 g
Impedance
300 ohms
Sensitivity
102 dB SPL (1 V)
Frequency response
4 Hz – 51 kHz (−10 dB)
List price
$1,999.95 USD
LevelPowerVoltageCurrent
100 dB2.09 mW0.79 V2.64 mA
110 dB20.9 mW2.50 V8.35 mA
120 dB209 mW7.92 V26.4 mA

Most headroom at 110 dB

Rated 96.8 dB/mW into 300 ohms. Estimated from published amplifier output.

Assembly drawing

123456

Parts

  1. 1HeadbandAdjustable metal headband, inert damping element, microfiber padding
  2. 2GrilleBaffle with steel mesh
  3. 3Ear cupVibration-damping chassis in aerospace-grade materials (unspecified)
  4. 4MagnetNot published
  5. 5Diaphragm56 mm ring radiator with 40 mm in-house wound voice coil
  6. 6EarpadsUltra-soft microfiber

Schematic dynamic assembly, annotated with the Sennheiser HD 800 S’s published materials. Not to scale.

Engineering notes

  • 56 mm Ring Radiator transducer with 40 mm voice coil wound in house
  • Patented absorber system to reduce masking resonances
  • Drivers mounted at an angle to direct sound toward the ear
  • Individual frequency response plot supplied with each unit

Design language

Technical modernism. Large angular cups and exposed steel mesh, shaped around what the driver needs, and one of the most recognisable silhouettes in the category.

Build the listening station

Desktop sanctuary

Sources