SENNHEISER HD 660 S - HiRes Audiophile Open Back Headphone

Just received and left speaker blown out of box.

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

Pofessional looking and well made, but HD 560S sounds better, imo. Returned right away for HD 560S.

Ill be comparing it to the HD600 which I bought at the same time to try. TLDR: Im keeping the HD600 and returning these.

These headphones are for a childs head... they will crush your head, because the top curve is absolutely terrible... I dont understand why such expensive headphones are so incredibly uncomfortable... its actually been giving me massive headaches, migraines, and jaw pain because they are so poor made. The discomfort makes them garbage...

(Coming from the hyper x cloud alphas) I was looking for some end game headphones for gaming, and i found them. These sound amazing, so clear and crisp. Imaging on point. Has a decent sound stage, so overall great for competitive fps games for sure. The only negative is the tight clamp at first, left them over night stretched on a box and since then they get more and more comfortable by the day. Thanks Z for making me drop 5 hundo, it was actually worth it.

There are two different models of 660s. The earliest sound the worst because ot has a thicker foam between the driver and ear cup. This model has the left and right indicators on the outside are the hd660s logo. Ok, The sound, Muffled. Earilest model more muffled. Just remove the foam. Ok the sound again..... Not dynamic and can make some songs sound flat like a handheld miniature FM radio. My test song Donald Lawrence- Healed. This headphone can not take this song to the next level. Its flat not dynamic and muffled. Sound like a miniature FM radio. The Hd650 is better with dynamics not muffled either. But honestly just buy the hd650 or Sundura 2020. If u really know whats good. Just buy something else. I suggest a hifiman Arya or focal clear mg.

Creo que son muy buenos audífonos, pasé de unos Bose SoundLink a estos para empezar mi camino en producción musical y me ayudan mucho más a detectar las frecuencias

I just received this amazing headphone this morning and as suggested by another reviewer that I break these in as I usually do with all of my new headphones. Once I put these on and started playing some of my favorite music, at an abnormally high volume, I couldnt take em off. For about 5 hours straight I listened to some of my music, from rock and roll to classical and was just blown away. The bass wasnt as strong as I had hoped for, although, even at a high volume, the music didnt get distorted and the overall sound was very clean and clear. Now Im going to give this headphone a 24 hour rest so the next time I use them I will really hear their true potential and will most likely want to listen to my entire library of music again just to hear everything that I have been missing out from listening them through my other headphones which are pretty good but not as good as these Sennheisers. And one more thing, these headphones dont play very loud either. On my devices, I have to play my music on almost full volume if I want to crank up the sound, where as with my other headphones, even half way was too loud. So for anyone wanting to upgrade their headphone experience I highly recommend getting these and it just may be the last one that you purchase. Yes, its that good.

The way these things get reviewed and talked about, youd think they were actually worth the large entry fee. I found them to have virtually zero high end. I realize they are not meant to have sparkly highs, but holy crap - it sounds like youre wearing them over a ski mask. Build quality is good, comfort is good, weight is good - I just couldnt EQ them enough to sound reasonable. Returned them immediately. And dont start with the they werent broken in crap. There was no recovering from that. So, bottom line, try before you buy.