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Sennheiser HD 660 S Audiophile Headphones

Sennheiser’s new HD 660 S is the ideal open, dynamic headphone for the passionate audiophile offering style, cutting-edge technology and the perfect impedance for ultimate compatibility even with portable devices.

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SKU: SEN-508231 Categories: , , ,

R 9,597.00

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A New Audiophile Versatility

The new Sennheiser HD 660 S lets you enjoy sophisticated audiophile sound in even more listening situations. The successor of the legendary HD 650 excels with the improved performance of its new transducer design. Thanks to its lower impedance, it delivers reference-class sound also when connected to hi-res mobile players, thus offering much greater versatility. The HD 660 S is an elegantly designed piece of high-quality engineering that indulges the demanding listener with aural precision and great wearing comfort.

Sound For The Passionate Music Enthusiast

Made for the demanding listener, the Sennheiser HD 660 S surpasses the exceptional performance of its predecessor, the legendary HD 650. With a crisp bass, excellent mid-frequency response, and a gentle, pleasantly natural treble, the HD 660 S has an expressiveness that immerses you in every emotion and nuance of the music. Still, it always stays exceptionally accurate and transparent.

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

Cutting-edge Sennheiser Technology

The HD 660 S features a new transducer design developed by Sennheiser. This results in improved control of the diaphragm movements thanks to a specially manufactured precision stainless steel fabric, which is adapted to the contour of the diaphragm. Extremely light aluminium voice coils ensure the highest impulse fidelity. The transducers are carefully selected and paired by hand to ensure consistently narrow (±1 dB) tolerances.

Supreme Connectivity

The HD 660 S headphones have been created to enjoy music in supreme quality and from many different audio sources. Thanks to its low impedance it also offers reference-class fidelity with hi-res mobile players. Naturally, the HD 660 S reveals its full potential when it is connected to the balanced outputs of a dedicated headphone amplifier such as the HDV 820 or to the balanced output of a mobile digital audio player. Accordingly, it comes with a choice of cables for just about any occasion. All cables are made of highly conductive OFC copper, featuring very low handling noise and sturdy para-aramid reinforcement.

Sennheiser HD 660 S Audiophile Headphone Cables
Sennheiser HD 660 S Audiophile Headphones

Designed for High-end Comfort

Everything about the Sennheiser HD 660 S makes listening to music a pure pleasure – not least its strong yet lightweight open construction. The elliptical ear cups are shaped to follow the anatomy of the ear, while thick padding on the headband and the replaceable ear cushions guarantee hours and hours of listening in supreme comfort.

The Look of Sophistication

The pure and effortless sound of the HD 660 S is reflected in its new matte black and anthracite design. It is a high-end aesthetic that embraces both timeless elegance and contemporary style – uncompromising in its craftsmanship, like everything about the HD 660 S.

Sennheiser HD 660 S Audiophile Headphones
Acoustic Seal

Open Back

Detachable Cable


Driver Type


Frequency Response

10 Hz – 41 kHz

Headphone Type

Circumaural (around ear)


150 Ohm

Noise Attenuation

Not Disclosed By Manufacturer

Nominal SPL

104 dB


260 g