SENNHEISER HD 660 S - HiRes Audiophile Open Back Headphone

Great sounding headphones!

You listen to same music but with 660s, its a different music with things I didnt hear before. Also, it is comfortable.

I really liked the sound and would have kept these if they werent so horribly uncomfortable. Everything about the sound was great. These could have been an end game pair of cans based on sound. However, the comfort level was awful, within minutes I was getting a dull ache around my ears and 15 minutes in the discomfort was unbearable. I returned these and went with Focal Clear OGs.

Really blown away by the sound quality. By no means an audiophile I can appreciate the sound these provide and would recommend.

Excelentes audífonos, muy alta calidad, aunque los cables incluídos deberían de ser de diferentes salidas y no dos cables iguales, sería mejor.

Gran calidad de audio, no hay nada como escucharlos ya que muchas reseñas no hablan tan bien comparados con los HD600, para mi gusto una gran opción pero sí son algo caros y un lujo muy costoso, después de un año de la compra estoy muy satisfecho.

Crisp def better than 6xx

Best of 600 series. Very crisp and detailed. Neutral uncolored sound without harshness. Completely eliminates the sennheiser veil of the 600 series.

Of the 5+ headphones I own these are the most comfortable (I can listen for hours) and best sound. Because the are open backed they are best used and home where I will not effect others sound space.Out is the public I listen to closed back or IEM’s for music solitude.

There is a lot to like about these headphones, which are an update to the classic HD 650. Ive never owned the 650, so this review is nostalgia-free. :-)