SENNHEISER HD 660 S - HiRes Audiophile Open Back Headphone

No ear fatigue like with other headphones.

These headphones sound amazing ! The price is great. I run them with a Shure Sha900 dac amp. Streaming music with tidal sounds amazing ! I also use them for gaming and I can pin point footsteps with ease. Best Sennheiser headphones for the price!

best phones Ive ever used. Im a longtime hd600 user, but these are even better. highs are sweet, never edgy, mids are as natural as with the 600s Bass is punchy w/o being boomy or exaggerated. The hard clamping against the users head resolves in about a week of use. Price is very reasonable for an audiophile quality product like this. All in all, a great buy.

These are extremely good all around headphones

This is the best headset Ive ever owned, it is worth every penny.

My first foray into audiophile quality headphones beyond my Bose Q35 II NC cans. I listen to Amazon HD flac powered by either my blue Dragonfly or the THX DAC. I listen to a lot of classic and contemporary jazz as well as international music. Music is more defined although the base isnt as emphasized but is more musical. The mids and highs are crystal clear and nuances of songs youve listened to often are more noticeable. I read that once broken in these cans sound even better, so Im using them continually at the moment. These are great, rated them 4 stars only because I do feel that more base umph would make it 5 star worthy.

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.

Comfortable. I expected a bigger sound. Better for low ranges, but not enough mids and highs

Muy buen sonido y calidad de materiales

Great headset but requires an AMP to sound good, using GSX 1000 with this and the clarity is insane, however I am not sure if it is worth the 500$ (iam a normal gamer who casually listens to music), the GSX 1000 can make any regular headset sound almost as good.