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.

Burned in for 1 week. Using this product for 2.1 music listening. These headphones are a little and I mean a little veiled and sibulent. You can hear every bit of music that is a a available on sound tracks being played. Not bassy headphones but they do have bass and are very impressive with the mod that i corporated. The mid range and highs are now superb. With a sound stage forward, rear and side to side. Using an AUNE X7S with a NAD DAC 2 Wireless and Dell laptop running tidal at 24/96. I have heard more music then ever before in my library. The 660s pull you in. Some times I turn my head to make sure its not an outside noise. They do have a good clamp on your head but it can be lessend by pulling the phone extender out all the way and bending the metal slider. BE VERY CAREFUL NOT TO BEND OUTWARDS TOO FAR or HARD AS THEY MAY BREAK. One hand on the phone bracket and other on the metal piece that comes out of the head band and use your thumbs to apply pressure on the bend in the metal band. Still debating whether I sell my 600s As the sound is a little more rich. Will update when finished testing and final choice. Waiting Dekoni hybrids ear pads as the defaults are a little hard for my liking. I have not heard planar mgnetics or eletrostatics but the 660s make me want to put them on and relax when Im home from work and rock out when feeling up. They are an excellent all round headphone and play all genres of music. Do your research. Good luck and remember everyone hears differently. Find your sound?. Oh the metal screen did pop out of the plastic molding when I tried to take the back off. Make sure you poke the plastic through the small holes on the driver side and not the metal, if you want to take the back plate off.

Yo tenía unos HD 599 y quería actualización por lo que pensaba en HD 600 y AKG 712 pro y terminé comprando los segundos y son bastante buenos, pero agarré los HD 660S en oferta y después de probar varias horas los AKG y los HD, los HD resultaron ser bastante superiores y cuestan casi lo mismo, el sonido es muy nitido y como yo los utilizo para escuchar música y videojuegos no tuve que ecualizar nada, a comparación de los HD 600 los S tienen buenos graves mejores que los AKG 712 pro, los probé con diferentes DAC y el zen dac v2 con salida balanceada me dió los mejores resultados para estos audífonos, desde mi gusto claro

Have used these for gaming, on the plane, and in the studio and they work great in every aspect. The sound is clean and crisp and the mids are very distinct and clear

Decent headphones. I’d say this is like the stepping stone into good quality headphones and is good enough many could say it is endgame. Unless you are shopping in the $1000+ range, I doubt you will find much better.

I listen to MOONRISE by NIGHTTEMPO. Surprisingly, I can feel the waves on both sides beating on the boat.

When you can close your eyes, listening to symphony orchestra, and literally imagine yourself being in the concert hall, you know your cans are working.

Ive listened to these on my Samsung note 9, on my PC with onboard crystal sound 2 audio, on a sound blasterx g6 dac/amp, and plugged into my topping d50 dac + topping a30 amp. In all instances these headphones sound great (assuming you give it enought volume) but you will see a big boost in fidelity when using a dedicated dac/amp. When comparing my audio-technica adg1 vs the Sennheiser 598 SE, I noticed the 598s were muddy in the mid range and lacked detail, and overall soundstage in comparison. Comparing the 660s vs the audio-technicas I noticed 660s had even more detail and clarity, which I wasnt expecting to be so noticeable. Furthermore that muddiness in the 598 SE were nowhere to be found here. These headphones reveal details in my music collection that I never heard before--this is true for lossless music files and low quality mp3s alike. Vocals are crystal clear, instrument separation is phenomenal, and the bass is tight (something the adg1 was lacking). And while the soundstage isnt as wide as my audio-technica ath-adg1 (ath-ad700x) it is a very natural soundstage with very, very accurate imaging. If you close your eyes and place yourself in the room youll be able to point out where each instrument was placed.

The two brands/models I was most interested in for the price were these and the Grado sr325x so i will be comparing these.

Excelente calidad de sonido, cómodos, muy buena construcción, muy recomendables