Customer Ratings & Reviews

What the title says! They can get loud and still sound fantastic. Perfect for music or gaming. Crisp and clear and the open backs I was hesitant on, but well worth. Getting them on sale for $200 off, I couldn’t pass it up.

I will preface that I am a bit of an audiophile and that my take isn't going to be for most people purely looking to get a pair of gaming headphones. They have a warm, smooth sound, but sadly lack thump and punch in the bass and clarity in the treble, which is what I would be expecting from a headphone meant to be for critical or analytical listening, however, the clarity is missing in ways I would expect it to be there for the price point. When I compare them to my Beyerdynamics 1990 Pro's, I feel like I'm not getting the seperation of frequency ranges I should be getting if it's meant for critical listening, and A-B'd to the 1990's they actually can sound a bit flubby to me in highs and mid-highs. That said, they are beautifully constructed and look great. If I were wanting headphones to casually listen to music, especially with an eq or a good pre-amp, I would choose these over the Beyerdynamics. These feel like more pleasure-than business, if that makes sense. They're great to game with, great to listen to music with, but if you're producing music or trying to have reference headphones for mixing, I'd have to say you might want to look elsewhere. For the price point I would say it's not worth the money, however if you find them on sale and you have the money, they are a great pair of headphones to add to your toolbox.

Great professional sound! Not as comfortable as its predecessors but headband will ease over the time.

Amazing headphones. Sound quality is out of this world with a low end dam ( pair with an audio engine d1 dac) Only minor thing is the clamp force for big heads like me, which can be fixed by watching a tutorial for 6xx series clamp force

First, I'll begin with purchasing the HD 660 S2 on Amazon. They are on sale now through Best Buy so, if I waited a week, I would have purchased them through BB. Still, they came brand new so I think I can write a product review as a loyal Best Buy customer. Mechanically, I love the host of connections and adapters. With a relatively inexpensive DAC/amp, I can listen to balanced HD music at 192 KHz via Tidal. Be aware, though, the same clarity can make flawed productions of records more obvious. Some consider these reference headphones. By adding the sub-bass, they are not neutral. In fact, I didn't find the sub-bass impressive. Midrange is not very good. However, I'm a listener and can manage EQ well via SoundSource for Mac. Separation is fine. Sound stage is fine, as it should be for open eared headphones. Don't expect ANC unless the volume is up. Expect other people to hear what you're playing because these are open-eared headphones. There's nothing magical about this type of headphone. If you want closed cans, there are many great ones out there. I wouldn't give up on the HD 660 S2. I was initially annoyed by drops in cross-board frequency and was ready to return them. Pink Floyd's "The Wall" sounded horrible, with terrible drops here and there. Using SoundSource, and breaking the headphones in, have improved and/or negated those drops. I love my Sennheiser MTW4's. They are built for some high codecs but you'll have issues expecting HD from BT earbuds. I'm a Sennheiser fan, despite all the BT battery issues in the MTW's 1-3. If you want HD Res at its best, go with balanced, wired headphones with an asynchronous DAC/Amp. The 660S2 is fine for listening to HD music. It is described as a reference headphone but it is not neutral. Paying $600 is a bad idea but $500 is a tad more palatable. That's the sale Best Buy is offering right now.