Sennheiser HD 650 | Open Back Professional Headphone - OnWard PH

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Sennheiser HD 650 Open Back Professional Headphone


The (high) definition of smooth

Expertly balanced acoustics, luxurious construction and timeless design. The HD 650 has all of the perks of a high-performance sports car and none of the quirks. This open-back headphone is beloved by audiophiles for its musical, non-fatiguing sound while still offering intimate levels of detail. Upon the first note, your favorite tracks reveal their true potential, and each moment of that performance becomes an opportunity to react all over again. For the hi-fi enthusiast that prioritizes engaging sound quality the HD 650 is an instant upgrade.


  • Systems with narrow tolerances (± 1 dB), hand-picked in pairs
  • Highly optimised magnet systems for minimum harmonic and intermodulation distortion
  • High-quality titanium/silver finish
  • A specially developed damping element, made from fine acoustic metal mesh, ensures a precise damping over the entire diaphragm surface, highly constant in all climates.
  • Specially modulated connecting cable (detachable) made from highly conductive OFC copper, with very low handling noise, i.e. low structure-borne sound sensitivity
  • Extremely lightweight aluminium voice coils ensure excellent transient response
  • Gold plated 1/4" jack plug with adaptor lead to 3.5 mm jack plug
  • 2-year warranty
  • Wearing style: Headband
  • Frequency response: 10 - 41000 Hz
  • THD, total harmonic distortion: < 0.05 %
  • Contact pressure: ca. 2.5 N
  • Jack plug: 3.5/6.3 mm stereo
  • Cable length: 3m
  • Transducer principle: dynamic, open
  • Weight w/o cable: 260 g
  • Nominal impedance: 300 Ω

What's in the box

  • HD 650
  • connection cable with 1/4” (6.3 mm) stereo jack plug, length 3 m
  • stereo jack plug adapter (1/4” (6.3 mm) to 3.5 mm)
  • instruction manual
  • storage box

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