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Sennheiser Wired Over-Ear Headphone-Titan

Model #: HD 518
At a Glance

Sennheiser Wired Over-Ear Headphone-Titan with ergonomic acoustic refinement (E.A.R.) and advanced duofol diaphragm

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$99,999.00Save $NaN

Get to know this product.

Featuring ground-breaking audio technology and an open circumaural design, these headphones provide a rich audio experience. What's more, the grille design commands attention.

The HD 518 open, circumaural headphones prove that quality and affordability can go hand in hand.
They are fitted with Sennheiser’s innovative E.A.R. technology to ensure accurate channeling of audio signals into your ears while their sophisticated Duofol diaphragms reduce unwanted resonances to an absolute minimum.

To amplify your listening pleasure even further, their generously padded earpads and headband cushion provide outstanding wearing comfort, even for long listening sessions.


  • High-end open circumaural headphones with E.A.R. technology for excellent sound reproduction with deep rich bass
  • Sennheiser's innovative "Eargonomic Acoustic Refinement" (E.A.R.) design channels audio signals directly into your ears
  • State-of-the-art, advanced Duofol diaphragms for transparency and minimal distortion
  • Highly optimized, field-strengthened neodymium ferrous magnet systems for an excellent dynamic response
  • Lightweight aluminum voice coils for high efficiency and excellent dynamics
  • Soft, crackle-free ear pads and headband cushion provide outstanding listening comfort
  • Distinctive grille-like ear cup casing design
  • Excellent connectivity, also with home Hi-fi equipment
  • 2-year warranty

What's in the box?

  • 1 HD 518
  • 1 3.5 mm adapter

Technical Data

  • Wearing style: Headband 
  • Impedance: 50 Ω 
  • Frequency response: 14 - 26000 Hz 
  • Sound pressure level (SPL): 108 dB (1 kHz/1 Vrms) 
  • THD, total harmonic distortion: < 0.2 % (1 kHz/100 dB SPL) 
  • Jack plug: 6.3 mm 
*Warning (for California residents only): Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Every Consumer Products company is required to post the warning no matter if their products pose any harm. Sennheiser products are all RoHs compliant, yet we are by law required to post the Proposition 65 warning message anyway.
Useful Documents


Weight (grams):255


Volume Control:Yes


Impedance:50 ohms



Misc. Specs

Frequency Response14 - 26000 Hz
Sport HeadphoneNo
Headphone TypeOver-Ear
WarningProposition 65 Warning for California Residents