Sennheiser HD 660 S Open-Back Dynamic Headphones

BH #SEHD660S • MFR #508826
Sennheiser HD 660 S Open-Back Dynamic Headphones
Key Features
  • Reference-Class, Dynamic Wired Headphones
  • For Stationary & Mobile High-Res Players
  • Very Low Harmonic Distortion
  • Tolerances for ±1 dB Accuracy
The HD 660 S Open-Back Dynamic Headphones from Sennheiser are headphones for the passionate audiophile and are crafted for the most demanding listener. Built with a transducer design that delivers lower harmonic distortion, they provide a natural, lifelike audio experience and can be used to produce crisp bass, transparent mid-frequency response, and a natural treble when connected to high-res players or portable audio devices.
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Sennheiser HD 660 S Overview

  • 1Description
  • 2Audiophile Versatility
  • 3Sound for the Passionate Music Enthusiast
  • 4Cutting-Edge Technology
  • 5Connectivity from Different Audio Sources
  • 6Designed for Comfort
  • 7Nominal Impedance

The HD 660 S Open-Back Dynamic Headphones from Sennheiser are headphones for the passionate audiophile and are crafted for the most demanding listener. Built with a transducer design that delivers lower harmonic distortion, they provide a natural, lifelike audio experience and can be used to produce crisp bass, transparent mid-frequency response, and a natural treble when connected to high-res players or portable audio devices.

With an impedance of 150 Ohms and a frequency response of 10 Hz to 41 kHz, the HD 660 S headphones are equipped with a choice of cables that feature both balanced (4.4mm Pentaconn) and 1/4" connectors. A 1/4" to 1/8" adapter is also included. This allows you to enjoy reference-class, high-fidelity sound with stationary and mobile audio players alike.

Audiophile Versatility

Enjoy the HD 660 S sound in even more listening situations. Thanks to a lower impedance than the previous HD 650 model, they deliver reference-class sound when connected to high-res mobile players. They indulge the demanding listener with aural precision and a comfortable fit.

Sound for the Passionate Music Enthusiast

Made for the demanding listener, the HD 660 S feature powerful performance with crisp bass, detailed mid-frequency response, and gentle, natural treble. These headphones immerse you in the emotion and nuance of the music. They are accurate and transparent.

Cutting-Edge Technology

Built with a transducer design that improves control of the diaphragm movements, the headphones are manufactured with precision stainless-steel fabric that adapts to the contour of the diaphragm. Aluminum voice coils ensure high impulse fidelity. Transducers are carefully selected and paired by hand to ensure consistently narrow tolerances (±1 dB).

Connectivity from Different Audio Sources

With their low impedance of 150 Ohms, the HD 660 S offer reference-class fidelity with high-res mobile players. They come with a choice of cables for just about any occasion. All cables are made of OFC copper, featuring very low handling noise and sturdy para-aramid reinforcement.

Designed for Comfort

The elliptical earcups are shaped to follow the anatomy of the ear, while thick padding on the headband and the replaceable ear cushions provide for hours of listening in comfort.

Nominal Impedance

A nominal impedance of 150 Ohms allows for direct connection to both stationary and mobile high-res Players.
UPC: 615104340503

Sennheiser HD 660 S Specs

Headphone
Earpiece DesignOver-Ear (Circumaural), Open-Back
Earpiece SwivelNo
Earpiece Connection / Wearing StyleHeadband
FoldableNo
Driver TypeDynamic
Driver Size1.7" / 42 mm
Voice CoilCopper-Clad Aluminum Wire
Impedance150 Ohms
Active Noise CancellationNo
Contact Pressure6.0 N
Performance
Frequency Response9 Hz to 45 kHz
Total Harmonic Distortion (THD)0.04%
Wired Connectivity
Audio Connector to Source1 x 1/4" TS
1 x 4.4 mm TRS
Connector PlatingGold
Adapter (Included)1/8" / 3.5 mm
Cable DesignY-Type
Audio Connector to EarpieceMicro-USB
Cable Length9.8' / 3 m
Cable ColorBlack
Cable Conductor MaterialOxygen-Free Copper
Environmental
Operating Temperature14 to 131°F / -10 to 55°C
Physical
ColorBlack
Water ResistanceNone
LED IndicatorNo
Weight9.2 oz / 260 g
Packaging Info
Package Weight3.41 lb
Box Dimensions (LxWxH)12.75 x 10.2 x 4.25"
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Does Sennheiser HD 660 S fold somehow?

Does Sennheiser HD 660 S fold somehow?
Asked by: Bryan
These headphones do not fold.
Answered by: Stephen
Date published: 2021-01-29
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