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Sennheiser HD 660S Headphones

Sennheiser HD 660S Headphones

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Product Description
An audiophile standard in the world of open-back headphones, the HD 660S from Sennheiser all but eliminates the barriers between listener and music. Improving on the acclaimed HD 600 and HD 650 models with an all-new transducer and specially ventilated drive unit to consistently control air displacement, the HD 660S takes a step forward in both detail and dynamics Read More

Step Up Your Soundstage

An audiophile standard in the world of open-back headphones, the HD 660S from Sennheiser all but eliminates the barriers between listener and music. Improving on the acclaimed HD 600 and HD 650 models with an all-new transducer and specially ventilated drive unit to consistently control air displacement, the HD 660S takes a step forward in both detail and dynamics. Within each driver’s 38-millimeter diaphragm, an aluminum voice coil delivers exceptional agility and responsiveness to articulate all areas of the frequency spectrum. Encasing this hardware, an open-back design made from steel mesh completes the new ventilation system, giving the HD 660S a wide-open, natural sound and a sleek presentation.

Sennheiser HD 660S Headphones
Sennheiser HD 660S Headphones
Sennheiser HD 660S Headphones
Sennheiser HD 660S Headphones
Sennheiser HD 660S Headphones
Sennheiser HD 660S Headphones

Specs

  • Sennheiser
  • Type: Open back
  • Ear coupling: Over ear
  • Drivers: 38 mm dynamic drivers with aluminum voice coils
  • Frequency response: 9 Hz – 41.5 kHz
  • Nominal impedance: 150 ohms
  • SPL: 104 dB
  • THD: < 0.04%
  • Contact pressure: 6.0 N (± 1 N)
  • Connector: Sennheiser 2-pin
  • Termination: 6.35 mm or 4.4 mm Pentaconn (balanced)
  • Cable length: 9.8 ft (3 m)
  • Weight without cable: 9.2 oz (260 g)

Included

  • Cable with 6.35 mm termination
  • Cable with 4.4 mm Pentaconn termination (balanced) 
  • 6.35 mm to 3.5 mm adapter
  • Storage box
  • Owner’s manual 

Shipping

Estimated ship date is July 18, 2023 PT.

Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout, after which all sales final.

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Top Customer Questions8
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Question
How much was this listed for? Just wondering for comparison to the HD 6XXs.
Feb 22, 2021
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Feb 23, 2021
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Question
Is there any other alternative earpads than the stock that can be used?
Feb 13, 2021
Top Answer
Evshrug
3924
Yes, all third party HD 6XX series pads are cross compatible. Dekoni has the most options, and just released some “standard” velour pads that supposedly sound the same as stock except they use...Read More
Feb 13, 2021
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Question
With Sennheiser selling their consumer audio line, will Drop be losing this line of products?
Jun 9, 2021
Top Answer
lowkey423
9
Nah I very much doubt it, the buyers made a point in saying they're going to keep most of the audio division as isRead More
Jun 12, 2021
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