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Sennheiser HD650 Open Back Headphones with Replaceable Cable

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  • Extremely natural, spatial sound image

  • Balanced deep bass reproduction

  • Authentic voice reproduction

  • Unobtrusive, natural strings and wind instruments

  • Neodymium ferrous magnet systems for high efficiency

Sennheiser HD650 Open Back Headphones with Replaceable Cable

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Essential Accessories

Sennheiser HD650

The vital part of today's audiophile music generation. Sennheiser HD650 is the follow-on from the award winning HD600 audiophone from Sennheiser. Improved materials enable the Sennheiser HD650 to reproduce superior acoustics and enhance listening pleasure.

The formidable Sennheiser HD 650 headphones are fit for a king.


The accurate trebles of the HD650, united with its balanced, deep bass permit the listener to benefit from natural sound replication. High-quality metal mesh covers deliver fantastically open and translucent sound. To round off the package, the Sennheiser HD650 incorporate computer-optimised neodymium magnet systems to minimise harmonic distortion.

Celebrated for superior comfort, the HD650 also come with a new designed headband resulting in consistent, undisturbed sound as the headphones stay at their position, even when your head is in motion.

Sennheiser HD650 - superior open, dynamic stereo headphones engineered for music - your music!

Sennheiser HD650 Audiophile Premium Headphones


Sennheiser HD650 Features

  • Top-of-the-range open, dynamic hi-fi stereo headphones engineered for music
  • Hand-selected, matched headphone systems with very tight tolerances (+/- 1 dB)
  • Computer-optimised magnet systems for minimising harmonic and intermodulation distortion
  • Extremely lightweight aluminium voice coils ensure accuracy and fast transient response
  • Neodymium ferrous magnet systems for high efficiency
  • Specially developed acoustic silk provides uniform damping over its entire frequency range as well as minimising IM and harmonic distortion
  • Elegant silver-titanium finish
  • High-quality metal mesh covers for superbly open and transparent sound
  • Extremely natural, spatial sound image
  • Balanced, crisp bass and deep bass reproduction
  • Authentic voice reproduction
  • Specially developed OFC copper cable, Kevlar-reinforced, insensitive to handling noise
  • Gold plated 1/4" jack plug with adaptor lead to 3.5 mm jack plug
  • 2-year Sennheiser warranty


Sennheiser HD650 Reviews

T3 Magazine Evaluates Sennheiser HD650 - Unbeatable!

T3 Magazine Evaluates Sennheiser HD650 – 5 Stars

"Cracking sound quality and unbeatable comfort" HD650 Review - 5 Stars

onHeadphones 5 Star review of Sennheiser HD650

"Liquid sounding midrange that infuses vocals with great resolve and soul. Warm, punchy bass that gives rock music a very solid foundation. Comfortable to wear for many hours."


CNET Evaluates Sennheiser HD650 Audiophile Headphones

Sennheiser HD650 Review CNET

"Sennheiser's flagship headphones have high-tech styling, extraordinary bass response, and an extremely comfortable design."


Sennheiser HD650 Audiophile Headphones


The Sennheiser HD650 Sound

  • Exceptionally natural, spatial and accurate sound
  • Suitable for all types of music
  • Balanced, contoured bass
  • Real deep bass reproduction
  • Exceedingly authentic voice reproduction
  • Unobtrusive, natural strings and wind instruments
  • Pleasantly natural trebles
  • Silvery, clear cymbals


Sennheiser HD650 Technical Specification

  • Nominal impedance 300 Ohm
  • Contact pressure ca. 2.5 N
  • Weight w/o cable ca. 260g
  • Jack plug 6.3/3.5 mm stereo
  • Transducer principle (Headphones) open, dynamic
  • Ear coupling circumaural
  • Cable length 3 metre
  • Frequency response (headphones) 10.....39500 Hz
  • Sound pressure level (SPL) 103 dB (1 Vrms)
  • THD, total harmonic distortion 0.05 %


Sennheiser HD650 Headphone Accessories


Product TypeHeadphones
Feature KeywordComfortable, Hi-Fi, Open, Over Ear, Over Head, Professional, Studio
Recommended UseHi-Fi, Studio
Manufacturer Warranty2 Years
Included Accessories6.35mm to 3.5mm adaptor cable
Part Number9969
Headphone Fit TypeOver Ear
Headphones TypeHeadphones - binaural
Cable EntryDual Sided
Cable Length3m
Connector AngleStraight
Connector TypeHeadphones (6.35 mm stereo jack)
Detachable CableYes
Driver SizeNo
Driver TypeDynamic
Connectivity TechnologyWired
Earcup DesignOpen Back
Frequency Response10Hz - 39.5kHz
Headphones Form FactorOver Ear
Headphones TechnologyDynamic
Number of DriversN/A
Sound Isolation (dB)No
Sound Output ModeStereo
Smartphone CompatibilityN/A
Smartphone ControlsNo
Total Harmonic Distortion (THD)0.05%
Wireless TechnologyN/A

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Questions on Sennheiser HD650 Open Back Headphones with Replaceable Cable

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  • From Mike Baker at 02/04/2015 23:04
    • Hi
      Can I use these headphones with my iPad if I use a headphone amplifier?
      I will seat at home using them to stream music from Deezer.
      If not then what are my best options where sound quality is paramount.

      Thank you

      Kind regards

    • Hi Mike,

      The HD650 is a lovely model, but you will indeed need a little help getting these headphones up to a decent level and properly powered if using with an iPad.

      A good low cost solution would be the Fiio E12 amplifier -

      This will have more than enough power to bring the HD650 up to a good volume even with quieter classical recordings. It is a portable unit but outperforms desktop equivalents in this price range.

      If you want better quality, maybe look at a combined amp and DAC (digital to analogue converter) such as the Beyerdynamic A200p -

      This will offer a conversion superior to that capable of most consumer products such as the iPad; useful if you make use of Deezer's lossless FLAC files.


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