SENNHEISER HD 660 S - HiRes Audiophile Open Back Headphone

Have bought this pair for a week. My view has been changing. I have a pair of very early version of HD600, and Grado RS1i. I also owned HD650 in the past but I remember they sounded sweet but a little slow and too much colored.

This is my second purchase of Sennheiser sound muffs.

I used to think the sennheiser hd280s were great but these knock them out of the water. I couldn’t believe the intricate detail unveiled by these cans. Note, you’ll need a headphone or otherwise sine kind of preamp that drives the amplitude.

They sound great and are a work of art. I didnt realize they were so compact and elegant. Used to have a 650 but no comparison. I have 6 pair of headphones now. Not sure if its a hobby, collecting, or hoarding. But I love them all. I encourage anyone to get the NewFantasia cables sold here on Amazon. Brings more life into the listening experience. If you dont have a balanced output on your amp, NewFantasia makes an adapter that has the 3.5mm or 1/4 option for plugging into your cans and the amp. They are priced fairly and add so much to the 660s and all my cans.

Are you like me? Does your wife dread looking into the Amazon cart only to see ANOTHER pair of headphones on their way? Well look no further, these are the ones.

Great for the money. Maybe 650? No get these.

Bought this on the Black Friday discounted price and boy am I glad. This sounds amazing paired with my Willsenton R8 tube amp. Very premium looking, feeling and sounding product. The popular Sony, Bose and other mainstream headphones cant compare. I understand these only get better after a few hours of burn in. The packaging, cables and materials all communicate a level of quality that is premium and worthy of the MSRP price. The fact I got this at a deep BF discounted price only makes it all the more better.

As someone once wrote in their review... these headphones are so light you can absolutely forget theyre on your head. If you own multiple headphones as the typical audiophile would... these are a must have. You know when you switch to another headset how light the 660s are! Its crazy.

In combo with my DAC, this headset is fantastic. Vocals are crisp and very comfortable for my head.

A nice tool for trying out hifi headphones without diving too deep into the audiophile price range.