Sennheiser Orpheus specifications

Category : headphones

Brand : Sennheiser

General

Tech nical data

Special equipment

  • Manufacturer: Sennheiser
  • Model: Orpheus (HE 90/HEV 90)
  • Years of construction: 1991 -
  • Manufactured in:
  • Weight: 365 g (headphones), 13 kg (power amplifier)
  • Original price approx.: 19.500,- DM (RRP)
  • Principle: Electrostatic, open
  • Coupling to the ear: circumaural
  • Nominal impedance:
  • Nominal load capacity:
  • Pressing force: 4.6 N
  • Frequency response: 25 - 75,000 Hz -3 dB (headphones), 10 - 20,000 Hz -0.25 dB (power amplifier)
  • Total harmonic distortion: < 0.1% at 110 dB, < 0.01% at 94 dB
  • Sound pressure level: 118 dB
  • Connector: HV connector 5-pin
  • Cable length: 3 meters
  • gold-vaporized 1 µm thin polymer film as a membrane
  • Real wood cassette for storage
  • HEV 90 power amplifier in tube technology
  • Power amplifier with line input and optical and coaxial digital input
  • Power amplifier with outputs for 2 headphones HE 90
  • Limited to 300 pieces worldwide.
  • pure hand-made
  • selected tubes
  • The Orpheus has been considered the best headphones in the world since its appearance to this day.

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