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Sennheiser HD 660 S - HiRes Audiophile Open Back Headphone

4.5 out of 5 stars 1,893 ratings

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Brand Sennheiser
Colour Black
Ear placement Open Ear
Form factor Over Ear
Impedance 150 Ohm

About this item

  • Reference class open back, dynamic headphone employing new and improved transducers delivering low harmonic distortion
  • Transducers are hand selected for precise (1 dB) left / right matching tolerance insure exceptional accuracy and presentation of stereo spatial characteristics
  • 150 ohm nominal impedance allows direct connection to home and mobile Hires audio devices. Contact pressure: 6.0 N - 1 N
  • Para aramid reinforced, detachable cables employ high conductive OFC copper to insure signal integrity with very low handling noise
  • Supplied with two connection cables: One with a 6.35 millimeter stereo plug, the other a 4.4 millimeter Pentaconn balanced stereo plug. Also included is a 6.35 millimeter to 3.5 millimeter adaptor. Connectivity Technology: Wired 6.35 millimeter / 4.4 millimeter Pentaconn

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Product information

Technical Details

Headphones jack ‎3.5 mm; 6.3 mm
Model name ‎HD 660 S
Connectivity technology ‎Bluetooth
Included components ‎HD 660 S, Cable with 6.35 mm plug, Cable with 4,4 mm Pentaconn plug (balanced), Adaptor 6.35 to 3.5 mm, Manual, Storage box
Material ‎Copper
Specific uses for product ‎Professional Audio, Entertainment
Compatible devices ‎[PO] Potentially various audio output devices with 3.5 mm or 6.3 mm jack
Cable feature ‎Tangle Free
Item weight ‎0.58 Pounds
Water resistance level ‎Not Water Resistant
Frequency range ‎10 - 41,000 Hz
Package type ‎Standard Packaging
Unit count ‎1.0 count
Style ‎Contemporary
Manufacturer ‎Sennheiser
Model ‎HD 660 S
Part Number ‎B508826
Special features ‎Lightweight
Number of Items ‎6
Aspect Ratio ‎Unknown
Power source type ‎Power Source
Batteries included ‎No
Batteries Required ‎No
Battery Cell Composition ‎Lithium Ion
Cable Feature ‎Tangle Free
Material Type ‎Copper
Manufacturer ‎Sennheiser
Item model number ‎HD 660 S
Product Dimensions ‎25.7 x 10.8 x 32 cm; 263.08 g
ASIN ‎B076HP574T

Additional Information

Date First Available Oct. 25 2017
Customer Reviews
4.5 out of 5 stars 1,893 ratings

4.5 out of 5 stars
Âé¶¹Çø Rank
Is discontinued by manufacturer No

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Product description

Sennheiser's new HD 660 S is an open back, dynamic headphone designed for the passionate audiophile.

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Sennheiser HD 660 S - HiRes Audiophile Open Back Headphone
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PriceCurrently unavailable.$799.95$279.99$849.99$409.99$999.00
Delivery¡ª
Get it by Sunday, Jun 15
Get it by Sunday, Jun 15
Get it by Sunday, Jun 15
Get it Jun 17 - 20
Get it by Tuesday, Jun 17
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From the brand


From the manufacturer

Sennheiser HD 660 S
HD 660 S

Sennheiser

Sennheiser is shaping the Future of Audio ¨C a vision built on a 75-year history of innovation and a continued drive for excellence that is woven into our company¡¯s DNA and culture. Around the world, our employees share this passion in the pursuit of the perfect sound, creating products that exceed expectations and set new benchmarks in audio.

Meet the Sennheiser HD 660 S

The new HD 660 S is the successor to the legendary HD 650. This open-back, dynamic headphone features new lower (150-ohm) impedance transducers producing reference-class sound when connected to both Hi-Res home or mobile audio systems. An elegantly designed piece of German engineering, the HD 660 S delivers exceptionally accurate and transparent sound, with an expressiveness that immerses the listener in every emotion and nuance of the music.

  • Did you know? The HD 660 S is designed and engineered in Germany, then manufactured to exacting standards in Sennheiser¡¯s Tulamore, Ireland factory.
  • Every HD 660 S undergoes rigorous, multi-parameter testing to insure performance essential to the most demanding listeners.

Features

Sennheiser HD 660 S

Exceptional Sound

Crafted for the demanding listener, the HD 660 S surpasses the performance of its predecessor, the legendary HD 650. Detailed and dynamic, with an extended and balanced frequency response the HD 660 S is both exceptionally accurate and musically expressive. The lower 150-ohm impedance facilitates direct connection to both premium home and mobile audio devices.

Sennheiser HD 660 S

Advanced Transducers

The HD 660 S employs newly designed transducers featuring extremely lightweight aluminum voice coils coupled to diaphragms precision-crafted from stainless steel fabric. This combination results in exceptional transient response and improved control of diaphragm movement reducing distortion. Additionally, transducers are produced and matched to extremely tight (¡À 1 dB) tolerance ensuring superb performance.

Sennheiser HD 660 S

Versatile Connectivity

The HD 660 S is supplied with two para-aramid reinforced detachable cables employing high conductivity OFC copper to insure signal integrity with very low handling noise. One cable is terminated with a 6.35mm stereo plug (a 3.5mm adaptor is also included), the other with the new 4.4 mm Pentaconn balanced stereo plug. Balanced connectivity can reveal full HD 660 S performance potential when paired with the balanced output of digital audio player or headphone amplifier like the Sennheiser HDV 820.

Sennheiser HD 660 S

Supreme Comfort

The HD 660 S is designed for pure listening pleasure. Its open-back architecture is strong yet lightweight and allows airflow to the ears, keeping them cool during listening sessions. The large elliptical ear cups are shaped following the anatomy of the ear, and feature soft velour covered ear cushions. Thick headband padding completes the comfort package to provide hours and hours of supreme listening pleasure.

HD 660 S
HD 650
HD 600
HD 700
Customer Reviews
4.5 out of 5 stars 2,760
4.6 out of 5 stars 2,775
4.3 out of 5 stars 293
Ear Coupling Over-ear (circumaural) Over-ear (circumaural) Over-ear (circumaural) Over-ear (circumaural)
Transducer Principle Dynamic, Open Dynamic, Open Dynamic, Open Dynamic, Open
Frequency Response 10 ¨C 41,000 Hz (-10 dB), Diffuse-field equalized 10 ¨C 41,000 Hz 12 ¨C 40,500 Hz 8 ¨C 44,000 Hz (-10 dB), Diffuse-field equalized
Sound Pressure Level (SPL) 104 dB (1 kHz / 1 Vrms) 103 dB (1 kHz / 1 Vrms) 93 dB (1 kHz / 1 Vrms) 105 dB (1 kHz / 1 Vrms)
Impedance <0.04% (1 kHz, 100 dB) <0.05% (1 kHz, 100 dB) <0.01% (1 kHz, 100 dB) <0.03% (1 kHz, 100 dB)
Total Harmonic Distortion and Noise (THD + N) 6.35 mm / 4.4 mm Pentaconn 6.35 mm 3.5 / 6.3 mm Stereo ?¡± (6.3 mm) Stereo
Connector 6.35 mm / 4.4 mm Pentaconn 6.35 mm 3.5 / 6.3 mm Stereo ?¡± (6.3 mm) Stereo
Weight w/o Cable 9.17 oz. (260 g) 9.17 oz. (260 g) 9.17 oz. (260 g) 9.52 oz. (270 g)
In the Box HD 660 S / Cable with 6.35 mm Plug / Cable with 4.4 mm Pentaconn Plug (balanced) / Adapter 6.35 to 3.5 mm / Manual / Storage Box HD 650 / Cable with 6.35 mm Plug / Adapter 6.35 to 3.5 mm / Manual / Storage Box HD 600 / Cable with 6.35 mm Plug / Adapter 6.35 to 3.5 mm / Manual / Storage Box HD 700 / Cable with 6.35 mm Plug / Manual / Storage Box

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