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Sennheiser HD650 Open, Circumaural Headphones

Model: HD650

Sennheiser HD650 Open, Circumaural Headphones
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About: Sennheiser HD650 Open, Circumaural Headphones

The audiophile HD 650 is the ultimate in open, dynamic headphone design. Developed from the award-winning HD 600, the HD 650s feature improved materials for even better sound reproduction. They captivate the listener with their expressiveness and emotion while maintaining absolute precision and lifelike reproduction. Enjoy sound in perfection!


  • Systems with narrow tolerances (± 1 dB), hand-picked in pairs
  • Highly optimised magnet systems for minimum harmonic and intermodulation distortionHigh-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, Kevlar-reinforced, with very low handling noise, i.e. low structure-borne sound sensitivity
  • Extremely lightweight aluminium voice coils ensure excellent transient response
  • Gold plated ¼” jack plug with adaptor lead to 3.5 mm jack plug
  • 2-year warranty


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 mFrequency response (headphones), 10.....39500 Hz
Sound pressure level (SPL) 103 dB(1 Vrms)
THD, total harmonic distortion 0,05 %

UPC: 615104099692 is a Canadian authorized Sennheiser retailer.

Reviews: Sennheiser HD650 Open, Circumaural Headphones

John M. - 11/24/2010

Superb sound-stage
Excellent construction
Wires can be replaced
Design and engineering are very well thought out
Like the little "Brail markings on the left side, so you can "feel" whether you have it on the right way..nice touch.
Classic Sennheiser be expected at this price range

None really
Takes some getting used to the headset

Criticisms of this product are simply people being ridiculously picky.
This is absolutely a professional product in all ways.
I own the Stax LB Pro and they certainly come close.
In many instances, if your recording is poor, then the sound will be poor, no "sound enhancement" can improve on something that was poorly done in the first place.
I am presently listening to the Ton Koopman Bach Cantata's series, the recoding quality is absolutely stupendous, and with these headphones its a joy and pleasure to listen to.

Bottom Line:
Yes, I would recommend this to a friend

Warranty: Sennheiser HD650 Open, Circumaural Headphones Warranty:

30 Days

Manufacturer's Warranty:

Sennheiser : 2 years
Sennheiser Evolution Series: 10 years
Sennheiser Aviation Series: 5 years
Neumann : 1 year
Klein & Hummel : 2 years

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