Well yes it’s a K5 pro. I’ve never had an amp before so I can’t really compare them to others but they look nice, the knob turns very satisfyingly and it’s able to run pretty much every headphone so I can recommend it for sure.

Well if it ain’t broke don’t fix it. Looking for innovation in the 600 lineup is probably top tier time wasting.

Appreciate the comment! A lot of people hate on the S2 because of the price tag. I can’t wait for a big discount so they can put the price aside and focus on purely sound quality. I find it funny that a lot of people are being very sensitive about price in this hobby and at the same time owning at least 2-300$ worth of headphones which are insanely expensive from a non audiophile standpoint.

Well if you don’t like her music just replace bad guy with another bass heavy fun song you like it’s simple as that. As the other comments say the production quality on her song is very good and I really recommend listening to her brother Finneas’s album called Optimist. One of the best produced albums in todays music IMO.

Oh nice! At least someone understood what I meant by the analogy. I got downvoted to hell on my other comment saying the exact same thing.

There is nothing wrong with preferring the 660S over the others in this lineup. There are some songs where I would still prefer the 660S over the S2. Everything depends on what you like.

100% can confirm.

I don’t understand the downvotes on my comment because it is how it feels like and I didn’t mean it in a bad way. As I said in my longer “review” the S2 feels like the most consumer oriented tuning of the whole 600 lineup at least to me and for people who listen to a wide variety of music like me it’s actually better than the others in this lineup. However for instrumental, acoustic, vocal focused very mid heavy songs I would pick the 660S over the S2 although any song with a slight bass will sound enjoyable on the S2 and this is what I meant by saying Sony/Beats tuning.

Well, I think the 660S tuned by Beats/Sony describes the sound of the S2 really well. At the same time it has the classic Sennheiser flavor.

Well, that I can’t answer to you. I can’t use proper EQ with my iPad setup.

Thanks my guy! Yes the AM EQ is terrible. Hoping for an update in the future.

As you should, happy for you my guy!

1, I did not say that. Apple music is literally open on the picture. 2, If you know one let me know.

That’s right. If you liked the 660S you’ll like the S2. If you already didn’t like the originals it is likely that you won’t like the S2.

If you show me where I can EQ, I mean really EQ any headphones on my iPad that would cool. Or should I buy a Mac to use apple music and be able to EQ properly? Then we are talking about 1000$+ of money spending. I see your point but it is not valid in my use case.

I agree that they’re overpriced but spending money on my hobby is not the part of my life where I make the best financially rational decisions. And that’s how it should be IMO, otherwise everyone would just rock a Sundara or 6XX.

It is a very subjective opinion that the 600/650 is better. I think both the 660S and S2 are better sounding headphones for ME and that’s the important part. I won’t use headphones that are worse by my taste just because they’re cheaper. For me both the 660S and S2 worth every penny. If you or anybody thinks differently that’s okay but telling people that these are a rip off is very misleading at the least.

By the Merc vs BMW comaprison I was going for the elegancy vs sportiness aspect, otherwise you’re right.

Rip off? If you can afford the product and not unhappy after buying it why would it be a rip off? Sure it’s expensive but you don’t get the same sound from any other 600 series headphones. If you actually like a 6XX or 600 sound signature more than the 660S2, good for you because you don’t have to spend 2x or 3x the money and you’ll be happy. My point was that judging the sound quality by the price of the S2 the way some reviews did is not okay. It would be if they were the same exact headphones just more expensive but that’s not the case.

As I said, I never used the box so I don’t care about that. If you are used to putting them in the box I can see the disappointment. Otherwise it’s irrelevant IMO.

So a little background story. I started the hobby at the end of last year with a Fiio K5 pro and the regular Sennheiser HD 660S after selling my AirPods Max which were my first really good quality headphones and started getting me into audio. I listen to music from my iPad on apple music and I was really happy with my 660S.

When I first saw the 660S2 leaks I was happy and sad at the same time because I didn’t plan to upgrade anytime soon but the frequency response comparison shared by sennheiser got me excited for the enhanced bass on the S2.

I picked the 660S on the first place because of the charactersitics of it’s sound signature, it is similar to the AirPods Max which staterted everything so it’s safe to say that I really liked the 660S. First actual reviews came in on the S2 and some said it’s a clear upgrade from the 660S others said it’s a sidegrade and too expensive so let me adress these confusing reviews.

Yes, it is expensive and in my opinion you should wait for a discount if you want to buy them. But, here comes the BUT part that is in my opinion lives too much in the shadow of the pricing. These headphones are amazing. There is no way anyone who tries them says that these sound bad because they’re in a way the most unique sounding headphones in this category.

A few words about the presentation. I don’t miss the big box the 660S comes in, the sack feels premium enough and will never use it ever just like the big box. The design is very much like the sound of these which I’ll get into it in a second, the S2 looks sexier and more different than the 660S and I really like them.

Compared to the 660S what are the most noticable changes regarding sound quality?

I don’t agree with the headphone show guy nor with Joshua Valour. The base response is very much a noticable and significant upgrade from the 660S. It just sounds better simple as that. The easiest way to say this is that I listened to Bad guy by Billie Eilish and the S2 made me enjoy the bass throughout the song while the 660S was definitely lacking in my opinion in this region. The treble and high frequencies however are the changes that can cause the most controversy and I agree in this part with the reviews. It is very different from the 660S, every note is sharper and can feel more unpleasent for people who are really sensitive in this area of sound. The mids have been put in the background by the more bass heavy tuning and the changes at the other side of the curve. It doesn’t mean that the mids are bad, because they’re still beautiful you just have to focus on this area by listening than before. The soundstage is also bigger, not by a crazy amount but enough to notice it immediately.

It is like Mercedes (660S) vs BMW (S2) or the same guy in a suit (660S) vs casual every day clothes (S2). I think the S2 is a more consumer oriented product with this tuning, meaning that more genres of music will sound amazing with these than with the 660S. To say it the most simple way I can it is like Beats or Sony took the 660S and made fine tuning and released the S2. It is a more V shaped 660S without being actually V shaped if that makes sense.

I listen to them while writing these words and these are really playful, less elegant but still beautifully detailed headphones. Everyone who buys these without owning any other expensive headphones will be very very happy how these sound and I do recommend them if you’re willing to spend the money.

If you guys have any questions I’m happy to answear them!