AUDIO EQUIPMENT AC-23: Sennheiser HD 600 Audiophile-Grade Hi-Fi Professional Stereo Headphones (Item #HD 600)

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The Sennheiser HD 600 headphones are engineered for the true audiophile. Thanks to an open circumaural design, computer optimized magnets, and aluminum voice coils - you won't find cleaner, crisper stereo sound anywhere!

The HD 600 is an audiophile-grade, open dynamic hi-fi professional stereo headphone. The advanced diaphragm design eliminates standing waves resulting in a clean sound free of artifacts and acoustical disturbances. It's a fantastic addition to a hi-fi stack or dedicated listening room, and is a favorite among mastering engineers worldwide.


  • High-quality open metal mesh grilles deliver extremely transparent sound
  • Computer optimized magnet systems minimize harmonic and intermodulation distortion
  • Extremely lightweight aluminum voice coils ensure excellent transient response
  • Neodymium ferrous magnet systems ensure optimum sensitivity and an excellent dynamic response
  • Exceptionally natural, spatial and accurate sound
  • Detachable, OFC copper cable


  • Frequency response: 12–39,000 Hz
  • Transducer principle: dynamic, open
  • Frequency characteristic: diffuse field equalized
  • Nominal impedance: 300 W
  • Characteristic SPL at 1 kHz: 97 dB
  • Load rating: 200 mW
  • THD: 0.1 %
  • Ear coupling: circumaural
  • Contact pressure: approx. 2.5 N
  • Weight: 9.17 oz (without cable)
  • Connector: 1/8" stereo mini jack plug with 1/4" stereo jack plug adapter 
  • Connection cable: 3 m, detachable dual-sided OFC copper cable

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