Sennheiser HD 660 S
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According to our headphones expert
With the HD 660 S, Sennheiser has renewed a classic. Thanks to the newly developed drivers, these headphones react better than its predecessor. The headphones sound detailed, thanks to the wide frequency range of 10 to 41,000 Hertz. This ensures that the HD 660 S is suitable for the most demanding listener, because the treble and bass are clearly distinguishable from each other. The sound sounds spacious, thanks to the open design. This makes the headphones especially suitable for home use. Thanks to the comfortable ear cups, you can easily carry these Hi-Res headphones for a whole day without your ears burning.
Type of ear cushions | Over-ear | |
Bluetooth | ||
Noise canceling | ||
Sound quality according to customers | Good | |
Carrying comfort according to customers | Good | |
Built-in microphone |
5 stars
30
4 stars
7
3 stars
0
2 stars
0
1 star
0
Sound quality
Wearing comfort
Build quality
Design
Of all the headphones I've tried, the hd660s is the best for me in terms of wearing comfort and sound quality. I also have an HD600 and while this one is also fantastic, it takes it up a notch. What is immediately noticeable is that the 660s is a bit faster, which in my opinion gives you more space between the different instruments in the music. And it all sounds a little fresher and clearer. The hd600 has a more relaxed character, which can of course also be nice sometimes, but it sometimes makes me a bit sleepy. The hd600 is by the way the more "neutral" of the two with regard to the frequency response, but the difference is not very big. one more thing to mention is that the 660s is a bit easier to control. I use a dragonfly red for both headphones and with the 660s I have to turn the volume down a bit. it makes a difference of about 4 to 5 dB. It can also be controlled with a telephone, although I do recommend using a dac/amplifier to get just that little bit more out of it.
Tony Wisman
4 April 2018
Automatically translated from Dutch
I have already written 'love at second sight' elsewhere. After experiencing 'good' sound for the first few days, it took a while before I could appreciate the real added value of a top set like this, especially after you switch back to some ~200 euro models it suddenly becomes painfully clear how big the gap between 'good' and 'very very good' (this unit). The ease with which this unit manages to stitch together every detail even in faster pieces of music is impressive. It sounds very (but not extremely) spacious, neutral from bass to the high end, and presents everything but the most extreme music styles excellently.
Build quality is neat, finish is neat, comfort is top after you first stretch it and wear it for days; straight out of the box it was just a little tight. Pillows themselves are excellent, pressure distribution is excellent. We don't see much room for improvement there, only in the secondary matters: a storage bag or some extra ear cushions would have been welcome for this amount. Also keep in mind that the open construction leaks a lot of sound, and does not dampen the environment: this is really a model to enjoy at home, not for the street.
499 euros is quite money, and for that it is crucial that we really get something back. Now about two weeks on the road with this model, it feels like you are only experiencing the beginning of this set's capabilities, and that is already impressive. For a young, inexperienced listener or lovers of 'just a nice beat' you have plenty of affordable alternatives, but for the critical listener who wants to be able to distinguish the finest detail? Then we see that the HD 660 S is really several classes above mainstream.
Stephan
22 February 2018
Automatically translated from Dutch
One word: great! The HD660S is pure class. I already had the HD650, which is of course also a winner. But because I recently listened to music indoors (inconvenient for outside because of the open sound box) portable, I had been craving the HD660S for a while. This is because of its lower Ohm of 150. I use the HD660S together with the Dragonfly cobalt (dac/amplifier) on the laptop and Iphone/Ipad. The dragonfly cobalt controls the HD660S with ease. Super tight and spacious sound. I'm still a big fan of the HD650, but if I'm honest, the HD660S surpasses the HD650 on almost all fronts. The HD660S is a lot more musical and gives the music just a little more life and spice.
D. Van der Meer
10 November 2019
Automatically translated from Dutch
Product number | 802707 | |
Manufacturer code | 508826 | |
Brand | Sennheiser | |
Warranty | 2 years | |
Processing of your defect | Via Coolblue | |
Old product returned for free |
Weight in grams | 260 g | |
Color | Black | |
Material | Plastic | |
Built-in microphone | ||
Intended for | Consumers |
Tested by expert | ||
Equalizer |
Sound reproduction | Stereo | |
Impedance | 150 O | |
Hi-Res audio | ||
Volume limit | ||
Active headphones | ||
Noise canceling |
Bluetooth |
Detachable cable | ||
Ribbon cable | ||
Coil cable | ||
Braided sleeve | ||
Remote in cable |
Sound quality according to customers | Good | |
Carrying comfort according to customers | Good |
Water-resistant |
Type of ear cushions | Over-ear | |
Types of design | Open | |
Foldable | ||
Rotatable ear cups | ||
Ear cushion material | Fabric | |
Remote control on ear cups |
Best tested |
