🟥Sennheiser HD660s (The Best Sennheiser Can.... .)

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[@KPalmTheWise]

I've my pair of 660s for about a month now. Clarity is real. You go from saying "oh hey those are some nice violins" to " There are 5 or 6 violins located there there there there and there and they all sound fantastic"

[@spronkey]

Have you heard 600s or 650s for comparison?

[@lumntoob999]

spronkey I've had everything since the 580's and after about 3 weeks with the 660 I sold my 580 but I still think I'm going to buy another 650 back at some point. The 660 really is the best of the bunch overall but the 650 still offers enough different to warrant having both imo. I saw the one comment saying z was showing to much hype towards the 660 but it seems pretty clear to me that he had a hard time saying they were better than the 600, and considering they are better it's something to be excited about. Don't confuse z's entertaining personality for hype, there's a reason he has ten times the subscribers than most doing a similar thing.

[@spronkey]

I'm similar, owned 580s, swapped them for dark screen 600s (older) which are my daily drivers now. Own light screen 650s as well and alternate sometimes (mainly because they're so smooooooooooth). And dw, I pretty much completely agree with Z except for the M50 :D

[@lumntoob999]

spronkey I would say you might be able to sell your 600 once you get the 660 if you wanted to but there's only one way to know for sure. I understand on the m50 thing, there not my cup of tea but I don't think your crazy for disagreeing. I happen to own and love the t90 and t70 so much so they are both customized for dual removable cables to run balanced.

[@brettmiller1074]

I haven't heard the 660's but that's exactly how I feel about my 650s, coming from my MSR7s.

[@nSamuraii1]

Looks like I made a good choice when I got the 660s over the 700 a week ago. I looked at all of your Sennheiser reviews and I like your style of videos, it’s ‘old school’ KZbin like without the constant editing cuts to save time .

[@animatedalbumcovers]

I just returned a pair of the 700s. Jesus Christ, the HD 700 is simply the worst headphone I ever got. Disappointing. I’m looking for another one now, which have BASS and is LOUD. My 700s was EXTREMELY low in volume, it bothered me so much. Depending on what band you listen to, the higher or the lower the volume gets, it’s totally unstable. Shit in every way ever. Bow I don’t know which one to go for, since the 700 was just a disappointment. The best I had was the 590. Then the 650 was clearly missing something, despite being a good one. I’m between the 600, another 650 or the 660S. Need BASS and need it to be LOUD. God! 🆘 🛟 Help!

[@istvanm666]

@@animatedalbumcovers Closed low impedance heaphone. There is your bass and loudness.

[@varunnarain50]

@@animatedalbumcovers this maybe late but look at some planar magnetic headphones.

[@zxSwifty]

@@animatedalbumcovers I love my HD700 for gaming, more comfortable than the HD800S and the I actually enjoy the sound from them.

[@animatedalbumcovers]

@@zxSwifty Mann, I love mine too, I actually kept it, can you believe it?! But this guy sold me with the cable kinda broke, I need to replace it somehow as soon as possible! I like the HD700! Had to buy a DAC for it to work properly, but I think I’m too much attached to its looks, to be honest! 🤭 I love how it looks! Like how it sounds! For gaming is definitely cool! It’s a amazing headphone afterall, but I think might look for something else in the future, I’m not 100% satisfied with it though, would like 90%. I miss some bass, but I loce how the headphone look and feel, it’s awesome!

[@blunderingknifereviews1028]

Stop making me want expensive things Z

[@yoursinisterdoge2785]

Being an audiophile means you must forfeit your wallet.

[@analogaudiorules1724]

The difference is, these cans are actually worth the price unlike 95 percent of overly expensive but useless gear out there, these are actually the real deal, especially when using a decent dac and head phone amp... even using these with a 100 dollar hifiwalker h2 player that has an integrated burrbrown dac with a 256gb micro sd playing dsd audio back is better then most things on the market especially when driving these hd 650s cans in high gain mode, hell even a cheap steinburg ur22 mkII dac with decent external headphone amp attached to your computer playing files from foobar is literally perfect, audiophile snobs might whine at the prospect of not having to break your bank, but that setup in either case will go far above anything you can perceive, balanced headphone audio is a gimmic as an example, nothing but a fad with no benefit, now when driving an amplifier or the headphone amplifier its self then yes, it is worth it... but as far as driving cans go, it is useless... the steinburg has balanced 1/4" connectors on the back, its easy to get 1/4" to xlr cables to make a balanced out to drive an amplifier as an example. You literally don't have to go crazy to get to the limits of human hearing.. especially if all of your sources are moblefidelty master tape rips or high quality dsd audio or even flac, wav, ape files from a pure source, after awhile it becomes a waste of money... the setups above i talked about with these sennheiser cans will take you to the best your ears can perceive.

[@BuckingHorse-Bull]

@@analogaudiorules1724 would i need to get an portable amp for the hifiwalker h2 + hd660s purchase

[@giuliano8031]

analogaudio rules Vinyl is even destroying the original master and sounds inferior to any digital format or even normal Tape cassette's if you buy the right ones, really...

[@imabeliever85]

I heard these in the store and said oh wow! Then I saw the price tag and said “oh no!”

[@voidgivenfocus]

Rev. Dr. Marc Axelrod hd 58x's oh yes

[@nicktan4530]

You need to be rich

[@atticustay1]

Nick tan No, you just need to have your priorities right :p

[@nicktan4530]

@@atticustay1 Yeah true, since its only $500. $2000 is too much for us

[@riseuplight]

Rev. Dr. Marc Axelrod OH YEAH

[@SwervinSpliffs27]

When did Jack Black start reviewing headphones?

[@Steven-bk3ye]

Connor Garry yeah. Been watching his channel for years and i still imagine jack black

[@manuelhernandez6801]

John Farskhin Z is not Jack Black! He’s Patton Oswald. Jack Black is not as crude lol

[@magganon]

@@manuelhernandez6801 Take that back

[@lazertag720]

After he closed the school of rock well

[@TestarossaF110]

@@lazertag720 he opened rock better, aka this yt channel.

[@elliotparnell7805]

Bought a pair because of this review as my first real set of hi-fi headphones (I'm 17) mine are always powered by a chord mojo and I've never been happier with a piece of audio equipment, if u have the money and think u want these but arent sure drop everything and buy them

[@Apaolino21]

After much research and many KZbin videos, I settled on the 660s. It was this video along with your other reviews that guided me to the 660s and everything you said was spot on! Thank you!!

[@PilliTorres]

Recieved my own pair of HD660S a month ago and I haven't been able to put them down, every night I sit in my chair and rediscover my music with great pleasure. These are my first pair of true good cans and I must say they make all the diference. Now to upgrade my old E10K with something better and I'll be set to go for a long time.

[@rockfella27]

Get the Fiio K5 Pro FTW!

[@pal_clips]

Schiit stack: modi and vali

[@nerdcity]

Enjoyable review. Sold.

[@Bjurstrominos2]

Don't buy 660s buy the 58X instead for a third of the price.

[@nerdcity]

Well shucks, too late. I like them though!

[@daddybonez]

Nerd City how are they

[@Bossix84]

@@nerdcity What headphone amplifier do you use? I'm looking to buy these headphones and have bo idea what amp to buy with them. I had Sennheiser HD 650 in the past and I loved them. I think I will like 660s even more :)

[@woofywooflez384]

oh hello there

[@koivids_]

I've watched this review I don't know how many times now but this time I can proudly say... watching this on my Sennheiser HD660S ❤️

[@PilliTorres]

Welcome to the HD660S club, I've had mine for about a month now and must say they are FANTASTIC.

[@trojen2429]

@@PilliTorres You don't need a amp for it to sound great, right? I mainly will use mine for headphones

[@PilliTorres]

@@trojen2429 i use mine with both my phone and my pc with zero troqueles, been wanting a dac/amp though.

[@trojen2429]

@@PilliTorres Nice! How's the audio with KZbin app? I heard some headphones sound grainy in KZbin. Also, what app do you recommend for me to play the clearest music?

[@lok777]

@@trojen2429 I listen to my hd6xx on my phone at max and it sounds good. You will probably want an amp to go louder but they sound great and go pretty loud on the phone imo. I know they arent identical HP's but the 650s arent "easy" to drive

[@SLI1337]

Hoping to hear your thoughts on the S2!

[@omeee]

All the tests said that 660s und 600 sound similar. I have here a new 660s and a new 600 (2019) version. The difference is massive. 660s wants much more attention due to the higher treble and higher bass. The voice is almost at the same level as the instruments. Vocal jazz is amazing with 600, good with 660s. On the other hand Metal / Rock / Pop is amazing with 660s due to more bass and clarity. Hard to decide. Even due the headphones are 130$ dollar apart in my country, I will stick with the 660s as I think it is more versatile. Disclaimer: I am not a huge headphone collector or audiophile. I own Teufel Aureol Real, Beoplay H6 2nd gen, Sennheiser Momentum 3 Wireless

[@felipemotorhead]

I know you are German because of two things, first you said "und" instead of "and" in the first sentence, and second because you own a Teufel product, and taking by the fact you chose the 660s for being more versatile you might live in Berlin.

[@michaelsi6770]

agree

[@makunouchiippo816]

Are the 660S really useful for Metal? I really doubt that because the bass is lacking a lot and you will need that especially for heavier stuff.

[@IAmTheKurgann]

Just got mine today. I absolutely love them. Plugged into my Jotunheim with the 4490 DAC module the clarity is amazing. 'Sound whoring' in Rainbow Six Siege with these feels like cheating (for those of us who care about that sort of thing).

[@PayJ-w]

Would I really need an amp/dac? I'm really new to this but it seems crazy that I would need something seperate to get the most out of a 400 dollar headset

[@RusticRusty]

@@PayJ-w You don't need to. But if you are going to spend that much on headphones, you might want to invest in a DAC/AMP to ensure you get the most out of them. It's like buying a lambo and then putting the cheapest tires on it.

[@iTrinityPlays]

@@PayJ-w DarkVoice 336SE Tube Amp, paired with a Geshelli Labs JNOG2 DAC is what I went with. $$$ Expensive set up, but would never look back on any other options out there honestly. Love music, but love "pro" gaming just as much. Paired with all the other gear I have, it just honestly feels like cheating at times with the sound stage and imaging.

[@brianliu522]

I am using iFi Zen DAC v1. balanced connection with HD660s. Very happy with the results. They are very smooth, natural and realistic sound with a touch of warmth. With 150 ohm impedance I never need to turn the volume above 11 o’clock. As it is not heavy, I can listen for a few hours without feeling fatigue. I mainly listen to classical music which I think HD660s is ideal for this genre. No matter it’s Chopin’s nocturne (solo piano) or Schubert’s string quartets or symphonies by Beethoven and Mahler involving 100 + pieces of instruments of varied tones and textures, the HD660s reproduces them with ease and accuracy. The HD660S makes me feel I am sitting right in the best seat of the concert hall.

[@EssenceofPureFlavor]

From a distance your wallpaper waifu looks like she has a beard.

[@Von_D]

There goes my boner.

[@Lemonzify]

Can't unsee.

[@BillStrathearn]

She doesn't?

[@st0rm4g3dd0n]

Not gonna lie, I ordered these like halfway through the review. Got them today, no regrets. I basically got these instead of speakers for now. I definitely get what you mean by them being clear. It's like every instrument/sound/source has it's own place and is separated from everything else. Stuff like Animals As Leaders is crazy on these. I can actually hear more individual notes in Tosin's shredding in Cafo.

[@TheRedstonePlayerMC]

Are you still using them? Have they stood the test of time?

[@st0rm4g3dd0n]

@@TheRedstonePlayerMC I am. Not as often now because I mostly use speakers at my desk, but it's still my go-to pair for working and gaming

[@st0rm4g3dd0n]

@@TheRedstonePlayerMC I think the HD58X Jubilee from drop are very close and a better deal now if you're looking at getting a pair

[@TheRedstonePlayerMC]

@@st0rm4g3dd0n Thanks for the reply and for your recommendation. I'm currenlty shopping around for a new headset - but there are a lot of aspects to consider first...

[@bratosin1]

2 weeks with my hd660 and I can say for sure they are a dream for people that are treble sensitive, they are so silky smooth, no peaks , perfect highs (rolled off for treble heads) the mids are special, the voices are sooo good ! Bass neutral , sub bass neutral that means nothing is lacking nothing is bumped , they lack impact but I don't mind because I love to hear not to feel the extension( both ends )

[@arymsg]

Oh thanks for this comment, i need treble, extremely clear highs...gonna go with 600s

[@Eddie8020]

660s=720p，600=1080p Full HD😅

[@LycanWitch]

The inside collar color in that wallpaper neko's mouth make me think she's sporting a mustache when your camera is moving around or out of focus..

[@Narinjas]

That image is Filth Filth ( kzbin.info/www/bejne/qHq6e6GedsmKpZY ) :3

[@MisterQueeb]

I feel better knowing I’m not the only one

[@yuliusjrt9917]

Narinjas wtf

[@TECHNICKER_Cz]

yeah 😂

[@1289dude]

Just ordered a pair of the 660s, though I did listen to this on my HD6 Mix. I'm excited not only as a gamer but as a music lover your review convinced me.

[@chrisstephenson9890]

Great review! I've not listened to a whole bunch of headphones but bought these as my first serious investment in hifi. As you so eloquently describe, the imaging is is fantastic, it's still intimate in terms of soundstage but each instrument is so cleanly separated in directional 3d space around your head it's incredible! running these off a portable hidizs s9 dac/amp currently and seems there's more than enough to drive them. Waiting to try them on a decent desktop setup to compare

[@UNSTOPABLE40XBOX]

So now I have to buy 660s *sigh* ok

[@SLI1337]

Managed to score mine for $375 shipped because it was open box. No noticeable signs of wear/usage. Deals are out there if you look.

[@ssalblowy]

SLI1337 nice

[@VirtualJiva]

SLI1337 still warranty covered though? That's what always scares me about buying used. Especially Sennheiser as they require a direct purchase reciept from them or approved distributor.

[@FeedMeSalt]

SLI1337 yeah...I'd rather pay the extra 100$ and get a warranty.

[@SLI1337]

No warranty due to a private sale. I'm not worried about the warranty though because the HD660S is functioning perfectly fine and most, if not all the parts are easily user replaceable if something ever does happen. That, and I handle all of my headphones (especially the expensive ones) with care.

[@bratosin1]

I have hd660s for a month by now and the biggest problem when u buy the 660s is u will never need ever to buy another headphone! Yes this hp is freaking amazing ! From deep lows to mids and highs ..omg amazing

[@omarsabbouh1237]

Does it sound good loud and clear?

[@omarsabbouh1237]

I'm kinda confused which to pick between the 820, 800, 700, 660, 58x ,650, and 660s

[@bratosin1]

@@omarsabbouh1237 660s all the way

[@thejackofclubs]

you now need to do the 58X because a few people said they prefer it to the 600 and its only $150. and the 820 because sennheiser decided to make a closed headphone by taking a 800 and closing it in with glass because they lost their damn minds.

[@BobKarnowski]

Waiting for my HD58X, but no one that I know of has heard the production (vs the pre-productions which have been reviewed) models with their "modest bass increase". From the Sennheiser rep on Massdrop: "We can confirm that the final production tuning of all HD 58X Jubilee will have a modest bass increase, and we already have begun building the drivers to meet the target that Massdrop and Sennheiser collaborated on."

[@lowstaar]

The 58X also has the HD 700 style drivers so it will be interesing how it compares to the 660s

[@commenter9703]

Z already said he bought the 58X. No one actually has a set yet as far as I know, even the first drop people are still waiting. Z is waiting just like everyone else. I believe he and DMS said they both were getting 820s soon to review.

[@olibaba6124]

so would you guys recommend the 58X over the 6XX?

[@commenter9703]

No way to know, no one has the 58X. But initially I would say no, I'm going to 6XX is better.

[@bigherb]

I run the HD660S balanced off a CMA400i, I've also added a ModMic 5 to them. Great combo for music & gaming 🔥🔥🔥

[@sermerlin1]

I have just bought HD 660s and i'll be damn. They're worth every penny. I wanted to buy HD 600 but since 660s are newer are clearer then the hd 600 yet own the speed of 600 as well as have better imaging i went in for 660s. Damn. These truly are the shiznit of cans. In games especially with Dolby Atmos for headphones (whoever has good headphones try it on windows you will be impressed... It only mixes the real 5.1, 7.1 and dolby atmos sources doesn't touch the stereo) I can bloody hear position clearly and defined never experienced it to this level before in headphones.

[@ActualKaktus]

Why do I love these videos so much?

[@nxtvctm]

I have owned He500, then LCD2.2, LCD-X, HD800S and then Stax SR007 Mk1. I have even heard the He1 extensively. Sold all my headphones to go into Vinyl and this year finally came back to headphones. Bought the HD660s without even listening to them. Saw the FR in comparison to HD650 and I was sold. HD660S are seriously good headphones especially at their price point.

[@josha8715]

So should i get hd800s or the 660s?

[@rohandamle6989]

@@josha8715 What amp are you using? How good is your DAC/Turntable?

[@josha8715]

@@rohandamle6989 I’m using a Sony TA-ZH1ES dac/amp which is pretty good quality

[@rohandamle6989]

@@josha8715 nice. What music genre?

[@josha8715]

@@rohandamle6989 basically every genre, with an emphasis on rap music. I have the hd800 and want some change, i figured the 660s might be better value than the hd800s

[@SidewaysShadow]

I love my 660S. Sold my HD600 a few months afterwards and added Dekoni Sheepskin Leather thick earpads for them. Oh man, they are my new go to favorite all rounder can. Love them and the extra provided comfort from the dekoni sheepskin leather earpads is great. I feel the dekoni earpads added a little bit of sparkle in the Treble/Highs that was lost a little bit to my stock velour pads and the bad seal they had after about a year of high usage (they were losing their shape so I'm not surprised). I also think they helped the sound stage very slightly with the drivers being slightly further away from my ears due to the amount of awesome memory foam padding and the great seal. Using a cheap FiiO e10k to power them and it does pretty good.

[@-Flabbergasted-]

Where did you bought your Dekoni earpads for your 660s. Can't find anywhere where to buy them

[@anatol1204]

Do they have more or less bass than 600?

[@aaaaaaaaaaaaaaaaaaa372]

21:00 that's the "critically listening to music on new cans" pose

[@Ace2153]

A year ago i watched this video. I went and tried about 30 different headphones and i could not for the life of me find headphones as good as the HD660S. Not at their price point at least. I liked the HD800S, but i could buy 5 of the HD660S for the same price and that 7% (imo) i would get over them is just not enough.... A year later i come back to say thank you Z! Your honest review sold me on them and i have been in a bliss of music and gaming. I have hearing like a bat, so even the littlest things get to me. These headphones, Tidal and a Q1 mark ii is what i go for in everyday use and honestly there is not much else you need.

[@No_one448]

"I'm probably gonna paint them" -zeos That's a strong statement.

[@olafjansen9187]

I stumbled upon your channel and not only you made me interested into this whole audio topic - this video made me buy a pair of 660s. They will „add“ to my Beyer Dynamics DT 990s I bought two weeks ago. I have rarely seen someone with such a believable passion for what he is doing like you. Thanks for the great videos. Regards from Germany.

[@jimtekkit]

The HD660S are dark-tuned headphones. Either they're great if you're sensitive to bright treble, or they lack treble, depending on what your preconceptions are. Personally it suits my needs but it does sacrifice musical liveliness and there's not much "wow" factor. That's why so many headphones out there are tuned with heavy bass and bright treble in order to sound impressive, so these are a more unapologetic focus on mid-range accuracy. Very different to the HD700. It almost makes me wonder if Sennheiser did a silent revision at one point because some early reviews mention an obviously bright treble which must've been dialled out.

[@5510lewis5510]

@15:50 Martin O'Donnell - A Walk in the Woods [Halo OST]

[@KaJ3M]

Got some 660s today on sale @ 30% off, Thanks Sennheiser absolute steal.

[@noth606]

I did A/B of the walk in the woods thing for fun between a project HD580 and my perfect condition HD595's and the HD595's did image that part clearer which is a bit unexpected, I'm waiting on parts(all pads/foams) for the HD580's. But one thing before people start shitting on the HD595's. They need burn in. Mucho burn-in. I bought these second hand about two weeks or so ago and they did not sound like they do now, I played them LOUD for about 12-16hrs a day from the day the got to me, and they only really opened up today. They didn't have the detail or the imaging they have now, even by 50% when I got them, the difference is night and day. And I'm loving them, I love the HD580's for how neutral they are, and how natural string sounds in them are, but that may change once I restore them to as close to new as I can, we'll see.

[@ArmandD]

This is one of your best reviews to date because you went in deep detail about the sound :):):)

[@StreckkHD]

9:16 The song is Piano Black - Seatbelts for anyone looking ALso i recently got the HD58x's and i coomed. Thanks for the reviews Z.

[@bretth1558]

Dude im totally thinking about getting them, currently have DT880s and looking for an upgrade.

[@PK88.]

I cant believe I questioned this mans credibility before watching the vid, in the first 30 seconds I knew this man knew what he was talking about LOL

[@philipthomas5282]

I returned the Sennheiser 660s as I just didn't love it. I experienced a grating noise like rough sandpaper in the higher end frequencies. So, I'm back with the 650

[@bigal6669]

So what you are saying is: you gonna have to update your recommendations on the r/Zeos?

[@ZReviews]

This is in Alpha Right now.... But www.HiFiGuides.com should be a rough replacement. Those lists will go back up as the descriptions are great. This site will have video clips and graphics showing the differences in some choices, etc

[@TheSorck228]

Z Reviews It would be great to have an option to favor soundstage as an option for people seeking immersion

[@VonSinclair]

So after months of searching made the right choice purchasing the 660s after all, never own a Sennheiser before.

[@m4nc1n1]

Love my 58X's. Took the foam out from behind the grill. Won't spend $500 on the 660s but always wondered if the 6XX's sound like compared to the 58X

[@maucantu]

660S are truly better in my opinion, but the price difference is the problem, those re not 3 times better...

[@josha8715]

@@maucantu What do you think is better? the hd800s or the 660s?

[@Stormtroopersi4]

Just ordered a pair, I love the excitement in your voice. I currently run the HD700's on a schit stack. I love them, but the quality of them has me a bit worried. I don't know how many times I've replaced the ear pads cause they fell apart. Also the head pad is not replaceable. Hopefully the 660's hold up better, and have more parts available.

[@tommybahama4418]

How do you like them now that you've had a chance to break them in presumably.

[@larsandersen9134]

@@tommybahama4418 I'n not Thatguy808 which you asked, but I've had a pair of HD 700 too and I liked them. I feel like they are made for a special genre or purpose. Like music with vocals and strings.

[@getpoked2498]

After owning the 600's and 660s, I believe that you should own the 660s if you run portable amps since the 600's are harder to drive.

[@DennisHeikki]

yeah that's why i got the 660s. 600 and 650 get way more love, but for someone who likes being able to plug headphones into anything and still sound decent, the 660s are good sound best with a good amp and dac, but still good enough in an xbox controller or phone if you dont have another option

[@daveryandub]

this channel is so good! (incase no-one has mentioned it before) I've been thinking of getting these 660's for months.im sold now.thanks

[@rolandlickert2904]

I just received my 660s and all that I can say wow it's worth the price at least for me!

[@kahyyamdavis7783]

I got Beyerdynamic DT 1990 and adding these 660s to my list

[@iliketoreadiliketothink1763]

660S is clearer than 600/650, but to me they are also grittier than 600/650. I miss the smoothness and richness of the older phones. So I would say if you already have 600/650, you don’t need to upgrade. Just eq the mid bass a bit lower on the 650 and it will sound as clear as the 660s and still sound refined and smooth

[@Philipphotography]

Yeah I agree. The 660s has a different sound signature and more similar to the 600 than the 650. Ultimately I returned the Sennheiser 660s as I just didn't love it. I experienced a grating noise like rough sandpaper in the higher end frequencies. So, I'm back with the 650.

[@blackjohnny0]

Curious how they compare to K712.

[@mogroot5790]

I want to know too!!!!

[@HarryLin]

But the resolution and details on the 650 are not very good. In fact even my IE800 beats it to the ground. The new HD660S has the sound signature of HD650 but more details so why not?

[@HarryLin]

Hellenback well, I'm not saying that the HD650 has bad resolution. What I'm trying to say is that more "recent" earphones like IE800 has way higher resolution, making the HD650 less desirable for the classical genre

[@0s0sXD]

I fucking love your weird style of videos because it's very different and refreshing from the rest of youtube, and at the same time it's fucking great

[@Stallzyx]

I ended up buying a barely used pair of the old kitchen counter top HD600 back in October and been loving them since. Big step up from even the AKG K712 and Sennheiser HD 598SE I was using before but still curious how the HD660s sound. To be honest I use my Behringer mixer to EQ a little extra high end and bass and it probably sounds more like how the 660s sound out of the box but without being as peaky and also a much smoother mid range. But still if they continue to make them and I can justify it one day, I may have to buy a pair to test or maybe I'll try my friend's ones

[@maddawgzzzz]

HD600s for life man! I own the HD800S, and I listen to my HD600 more... they sound good... they fit good... I wish they had the sound of my HD800S, but the HD600s just fit so damn good.

[@Enigma1990ad]

I've got the M50X which is very bass forward. I ordered these with the expectation of hearing more details and much less bass to contrast the M50X.

[@limftw1565]

m50x is not a comparison to the hd600 (hd660s). I had the M50X for a several days and I absolutely hated them :P Extremely horrible and muddy bass performance

[@mmorales508]

@@limftw1565 Bro M50X are not even a candidate to compare against the 660s. Not even close.

[@CAL1MBO]

If you listen to a lot of electronic music. M50x are better I'm sorry. I know it's sacrilege but it's true.

[@gbarrows04]

@@CAL1MBO ehhh

[@moumenryder1492]

I saw the cat girl, and I knew deep down, you are the one for the review, I bought the HD660s with Schiit magni heretic & Modi+ after watching your reviews. love you reviews and your honesty

[@teighan7829]

Love my HD58X, but they aren't HD660s based off of literally everyone else who owns them. Still, best purchase I've made.

[@imYe1]

i have HD58x, do i get the HD660s?

[@6643bear]

Hi great informative video, I use my 660 with ifi zen v2 dac with true bass , these phones come alive with the bass . Regards mark

[@bbunters]

I exclusively use the 4.4 balanced with a Sony zx300 DAP. It's just too fantastically chunky not to be using it.

[@trens]

TLDR - use to use hd650 now use HD660s -- only difference is I don't turn my head around to look behind me nearly as often as before with the hd650. I have had the HD650 10+ (used them for ~8 years) and HD660s replaced them in 2018 due to one of the copper latches in the female connector of the HD650s came loose. So now the HD650s do not work anymore and I haven't bothered to try to fix them yet. So with ~4 years of use out of the HD660s I can say the only thing I know that I have noticed is I do not, while using the HD660s, as often turn my head around to look behind myself. Turning my head around does happen sometimes with the HD660s headphones, but it does not happen as often. This is the only tangible comparison I can give and it probably isn't worth that much. The amount of times it would happen? I would say 1-5 times a year with the HD660s (maybe a few more times), however with the HD650s I swear it was nearly 1-2 a month or more. Maybe it was the games or the soundcard? 2011 I had a Creative Sound Blaster X-Fi Titanium HD Sound and replaced that with a sound blaster zxr in 2016. What I mean by turning my head around to look behind me is.. I felt like something I just heard was behind me. It happened most often in games and it was awesome, I'd laugh sometimes, and a few times it was sorta spooky. Does that make sense? I came back to clarify that point and after updating this post I have to say it hasn't happened since. I am going to fix the HD650s I have to know, on the slight chance, that I might be crazy.

[@joseotazu1205]

Would you recommend the HD660s? after 4 years of use?

[@deafno]

So you are saying 650 has better spatial imaging or 650 gives false spatial information - there actually wasn't anything behind you (in game I suppose)?

[@Klarato123]

Just ordered a pair of the HD660s. Love the review and have been learning so much watching your videos. Keep it up!

[@elasmojones]

I love how I'm just getting into the game, watching Zeos' old vids, and I come across loads of Cowboy Bebop.

[@1Pings]

Waiting for Z to review: Sennheiser HD660s - Check Questyle Audio CMA400i - Waiting HifiMAN x MassDrop HE4XX - Waiting

[@Xsetsu]

Same here!

[@lionheart8151]

The HE4XX review is freely available on his patreon; he released it especially for the drop a few weeks ago.

[@taiefmiah]

Second hand he400i >he4xx

[@andresgallego5727]

400i>HD6XX

[@taiefmiah]

Andres Gallego I think that depends on your taste, they make trades. 400i is less compressed and wider. Hd6xx have better overall timbre and spacial information/detail

[@moltenbullet]

Got these the day they released. I went to the store for a HD650, tbh, but the store told me those were discontinued. They had a demo 660s unit sitting where the 650 once sat, and I tried them for like an hour. I looked at the extra 200 bucks (SGD) I had to spend over the old 650 and said, fuck it, I'm going to pre-order. No looking back.

[@millenwagon]

I watched this review after owning my hd660s, and I agree with you completely. LOVE these headphones, they're like a jack of all trades and master of all. I use them for music, movies, Roland vdrums and gaming, and they literally sound better than everything I've ever tried for all those separate activities. They're so versatile it's insane, and even my mobile phone and PS5 controller can make them go LOUD. But to use them without a DAC amp is an insult to the headphones, they really need decent equipment to get the most out of them.

[@danilopavlovic8305]

Hi, do thay have metallic sound as some people claim, compared to hd 600...650? and do you think they are still best for 500e? Can they be decently powered with some 100...150 e amp ?

[@millenwagon]

@@danilopavlovic8305 definitely not metallic sounding, they’re very natural. Admittedly I recently got hold of some dt 1990 pro and they’re so much better than the 660s. Whilst the 660s are smoother and more natural, the 1990 image MUCH better, have a better soundstage, better bass and crispier highs. 660s are still wonderful but the 1990 are much more versatile. They’re both easy enough to drive, both sound much better with a DAC amp.

[@michaelsi6770]

I agree but partially, hd660 is a jack of all trades in the best possible way, hd660 are great for everything but movies, in movies voices are too thin and bass is overwhelming sometimes

[@willsbox635]

Just bought it, best BALANCE between sound and comfort. Who ever said this can sucks? Well, it's really preference. Im happy with it, standing in the middle of ad2000x, he400i, m1060 and sr507.

[@HenryFanboy]

How does this compare to 2000x? Worth owning both?

[@willsbox635]

They sound different. I personally hate describing sound because the bass of this genre is not equal to the bass of that genre, also mids, highs, etc... But I'll try. >>>I would say 660s has better comfort, more punchy bass and soundstage than 2000x and decent mids and highs. HOWEVER, 2000x still excels in female vocal and strings, given that the sound nature of it is so unique (it sounds almost moist and therefore so pleasant to listen, i really dont know how to describe...). Back to 660s, it is a bright , analytical headphone, a good bang on higher tier dynamic headphones (a little bit expensive though). HOWEVER (again), if you let me to choose again, I would rather spend 600 bucks on a second hand lcd2 or 150 on a he400i, because... i personally love planar and electrostatic more :)

[@ZenSponge]

Goodness, you posted this half a year ago. Here's hoping...how do these compare, and or what are its strengths and weaknesses compared to the HE-400i's?

[@tocotaku4787]

Love the cowboy bebop sound track

[@cosmicgamer6648]

What portable Dac goes better with this headphone? I have Zero ideas. Please recommend. What about Sennheiser GSX 1000? Can you please review it? I will buy this later need your help brother. What kind of Dac should I buy? I love the portable one because I can use it for everything. All in one. I listen to songs, soundtrack, games, watch movies. I'm actually an Audiophile. But I use like $16.5 Chinese Mice headphone. Which is really bad. I prefer great quality, crystal clear sound, and badass bass. Overall great. Hope you see this comment and reply. Thank you for this video.

[@MarianIanchis]

How do they compare to Beyerdynamic DT1990 and Beyerdynamic Amiron?

[@DaScorpi0n]

Someone answer the man! I have been searching for new cans and can't choose between the DT1990, Amiron, HD660s and SRH1840.

[@Tripokaridos22]

Dt1990 are way so much brighter on highs i cant listen to them loud. Amiron on the other way are smoother wormer with deep progressive bass. HD660s have worm sound not over bright and the bass is more faster in your face but not deep progressive. So it all depends on yoyr taste.

[@alyysc]

Go with Hifiman Sundara. They sound better than all of the three

[@TraceLight]

Mpamphs Kangourosaurous but have QC issues that none of them have

[@dnd6379]

@@DaScorpi0n I know it's late, but I'll try and help you out anyway. Depends on what genre of music you are listening to and how sensitive to highs you are, wouldn't get 660S if you are treble sensitive, that's why I switched from 660S to HD 650. Amiron have horrible quality control, you don't know if you will get a treble can pair or a normal one, mine was treble can pair and if I tried pushing them loud the treble got more boosted in volume than other parts or at least that is how I perceived it also if your ears stick out too much like mine do even though not really, your ears will touch the inner side of the cups and it will start hurting in an hour or a few. I also wouldn't be getting any beyer cans if you are anywhere close to treble sensitive. But it's best to test them out ofcourse. Cheers.

[@GameChangerPlayz23]

Just picked up a pair of the Sennheiser HD 660s for $229.95 shipped and sold by Amazon, can't wait to get them been hearing how great they are so truly hoping they live up to the hype. I also have a Fiio K7 to push them.

[@fador1337]

I thought of getting that combo. How is it? If you don't mind sharing.

[@ecohangout4481]

i watched this video 50 times and finally im watching it with the 660s.

[@chozen_juan]

how have they been? really worth it or feel cheap with squeaky plastic?

[@ecohangout4481]

@@chozen_juan In general, the headphones are light. the top part has a matte finish but is not quite soft touch. If you look at parts the ridges underneath the sides of the headband, you can actually see parts of the plastic that was not well machined and it still has the marks from when the plastic was molded. However, if you look at it from the top you will not see any imperfections. When twisting and turning it, there is no squeak. They are also pretty flexible. I don't know a single person who wouldnt fit this pair of cans well. But in general the plastic is lower quality than I expected for 500 dollars. I feel like if i really used force or sat on them, they would snap. The earpads are really nice though, and so is the support on the bottom of the headband. Really comfortable to wear. For me, the sound quality and smoothness is worth it, even with the sub-par build quality. But if I were to make the decision again, I would've gone with 1990 pros.

[@chozen_juan]

@@ecohangout4481 Interesting. Thanks for the reply. Beyerdynamics is dropping the 990 Pro X soon. Any thoughts there?

[@ecohangout4481]

@@chozen_juan Wow, I was literally looking at the 700 pro x and the 900 pro x today, too! I think these two headphones look pretty great in terms of aesthetics and build quality. I think the sound quality of the 900 pro x would not disappoint. I've even heard that it does not have the same sharp spikes open backed Beyers usually have, which is a huge bonus. Since I already have open back 660s, I think I will go for the 700 pro x for a nice closed back experience. The fact that the impedence for the 700 and the 900 are both around 40 ohms is also a huge bonus. That way my phone and laptop can both power it fairly well. I plan on keeping my HD660s for the desktop and bringing the 700 pro x for a portable solution that looks stylish enough to use in public without looking goofy, but still has audiophile quality isolated sound.

[@chozen_juan]

@@ecohangout4481 solid points. I oddly came to the same conclusion.. man thats glitchy. Anyways, thanks for the reply!

[@JTB--]

I've tried all the Senn 6XX line.... and for me the HD 600 is the best. Especially on Tubes like a BC & Speedball

[@bratosin1]

I just got my hd660s , and yes they have one of the best sub bass I ever heard , they go easily to 20hz , so don't worry ! That was my only fear ! And yes I'm a fucking bass head ! And if a bass head like me love the sub bass of hd660s trust me .. they have it , thank you sennheiser !

[@shawnorjiakor]

Bobby Brian Great. Thanks. Now I'm ready to buy them.

[@djolexofficial]

is this supposed to be some kind of sarcasm? because all internet says that these are lacking sub bass extension?

[@OmegaDreyo]

I agree, they sound fantastic. Just great all around. Who needs drugs when you’ve got 660’s.

[@sirpv22]

Just ordered, excited!

[@Spudd1968]

You had me at Buick Regal Grand National - thumbs up!

[@rohandamle6989]

Just bought the HD660S, thanks to your review.

[@Steven-bk3ye]

Bought them yday. Just straight to my phone, was reaaly pleased! Getting a chord mojo tom ! Excited

[@5peedwagon_]

My set arrived today & I will be testing them against my HD600 through my Aune X1s & X7s stack

[@HenryFanboy]

OtakuDrew well?

[@dillacorn_linux]

How'd it go?

[@alyysc]

Tell

[@nabildanial00]

I have both HD660S and HD6XX, while the HD660S is great with any amps even with phones, it scales poorly with better amps in contrast to a HD6XX. With OTL amps, HD6XX shines more, every improvement is so noticeable. Sound changes subtly with HD660S, it has grainy sound that HD6XX hasn't while the latter has better clarity and transparency.

[@nabildanial00]

Oh and I use the Bottlehead Mainline for the comparison.

[@alvarg]

are you sure the grain isn't just your amp/dac/song choice?

[@DennisHeikki]

yeah thats the tradeoff right? the 600/6xx line scales well with amps, but the 660s trade that to be easy to drive

[@csch92]

hey how about an S2 review? i really love these cans. and for me they are really easy going yet powerfull. i couldnt handle the meze 109 pro cause of their treble. and vocals are really something on the s2

[@SujitJadhavIN]

I do not like 660S2

[@styloyt]

Now I know what I’m getting for my birthday. Hopefully they won’t run out of stock till the middle of March :D

[@dmitripopov8570]

You get a review and a Greek Theater presentation! Lovely! )) Keep up the good work!

[@awesomises]

4:08 "nobody has 4.4 balanced" wEll aKtUAlLy, Sony's TA-ZH1ES (their only premium DAC, I think?) has 4.4 balanced. I was quite tempted to get these before other things disturbed my savings. Other than that, I'm pretty sure there are a few more 4.4 balanced options, but the ones I could think of are portable hifi players like Sony, Fiio and AK. Then again, I'm not big into hifi stuff, especially desktop amp, preamp and dac.

[@barlew09]

Went for the 660s. At first concerned about the "veiled" sound. Did not seem to have the impact of the Hifiman 400s w/Brainwavz pads mod. Came to the conclusion sound was just more "comfortable" tfor extended listening. Using Spotify Hi-Quality w/ HA2-SE or Oppo E17K or Dragonfly. I thought the DAC would make the difference. After 100 hrs started listening to Tidal Hi-Fi. The SQ is superb!!! Just beyond words. Enjoy.

[@Adam-qs5ir]

Did audioslave redo sleep now in the fire? It started as a Rage Against the Machine song.

[@fondoo]

man, i love your obsession!! i'm sold on the 660S.

[@joefilter2923]

The video is short, barely any filler, except the part about running into that building to save hs students and doing fancy hand waves.

[@helloboss4876]

Waiting for your review of HD 660S2. Any plans?

[@Mellowbaton]

Now I can have a set of cans worthy of my hentai blu rays

[@SussyBaka-em9rq]

Nice review. Think I am gonna buy the HD 58X Jubilee

[@bombadt-yt9818]

"but... they're not cheap" and they need a little bit more, deeper bass

[@bombadt-yt9818]

@YggdrasilAE why so aggressive? I actually like this headphone and I think it's a fair opinion. It could use a little bit of sub bass since HD58x the fabled "budget HD660s" can go a bit lower. But this is not in any way a bad headphone just because I said it's bass-thin. I actually love this headphone for what it can do. I even considered owning one if my living place isn't such a big shit hole for owning headphones. Is it the way I said it? Is this headphone is currently in your inventory? and my comment feels like its attacking you as the owner? If that's the case I'm really sorry. It is merely an opinion from someone who owns 20+ headphones in his entire life, and of course none of them are beats by defect.

[@andysledge]

@@bombadt-yt9818 People like him are the reason why people despise talking to audiophiles

[@wizzenberry]

YggdrasilAE as a professional, producing music and having the ability to have that low end capacity is very important in the mix down mastering and referencing process. :)

[@scottlowell493]

Oh ya bastage. You did it again. I *WAS* happy with the Z recommended hd600. I was considering the 800s one day but... Your HD660S review (along with other trusted and corroborating sites) unanimously concur that the 660S do more of what the HD600 do, and do it better. The 600's vivid presence was exactly what I was looking for, not re-voiced and more politely rolled off models. I returned my 600 and 660s are on the way.

[@mcmalden]

I auditioned the HD600, HD650, and hd660s's, never having heard any of them. I was expecting to buy the HD660s's, but ended up going with the HD600's (note that both were straight from the box). I would definitely audition them before buying. Honestly, these headphones are very much alike. The frequency response of the HD660s's and the HD650's are pretty much identical anyway. I feel this review is hyping too much, the hd660s's aren't revolutionary IMO.

[@gaba665]

Totally agree with you. This 660s are no way better than those 2.

[@taiefmiah]

Gabriel Martinez it is more resolving and conveys more spacial decay. It's more forward though and that can be more fatiguing. I didn't like either because they sounded very compressed in terms of dynamic range compared to my hd580

[@StarvingOat]

Comfort wise, are they the same?

[@taiefmiah]

rrevolver1 near enough yes, older pairs will clamp less due to time. They, alongside hd800 and audio technica stuff are probably the most comfortable stuff you can get

[@octoslut]

hd660 use modified hd700 drivers so they are probably better

[@marduke83]

So bought a pair of 660s about a month ago, absolutely loved them, until I listened to the skyrim soundtrack, and some some sub bass frequencies came on (admittedly it was pretty loud, to compensate for my industrial deafness), and there was a rattle from the LH earcup, a physical rattle, not distortion etc.. did some testing and found it was in the 20-50Hz range. Took it to the shop that I bought them from, they had it for 4 days and couldn't fault them, so I went in and showed them the fault, double checked that it was a fault by testing their demo 660s and sure enough mine was faulty, that day Sennheiser told them to replace it and they would reimburse the shop. Sennheiser customer service is amazing. Now I absolutely love them again, and for gaming.. man, they are fantastic. Thanks for the indepth review by the way, it was what prompted me to pick up a pair.

[@marduke83]

Yeah that was the first thing I tried, and there was nothing in there. Was a defect in the membrane. But that's bound to happen eventually, just unlucky I got the set that was defective.

[@christiandevela2980]

made me buy a pair of 660s! thank you Z.

[@sniperking4696]

15:46 “A Walk In The Woods” a masterpiece of a song from Marty O’Donnell for a masterpiece of a headphone.

[@Ankah]

The real question is : these or DT1990 ?

[@ether2434]

1990

[@Pepslokken]

1990

[@taiefmiah]

Hd660s. I don't know who would say the dt1990 is better. Since they just compete with the 600/650

[@s7robe297]

taief miah the 660s is just an hd700 driver. I've heard both the 1990 is better imo.

[@taiefmiah]

s7robe better in what way???? Hd700 had horrific tuning due to the enclosure. The pads caused ridiculous reflections and the shell did too. Sennheisser realised that the hd800 enclosure needed that style of driver. Hd660s tuning is near enough the same as the hd6xx using the same housing and the same driver design with a larger magnet which is stronger. Hd660 had a much more natural timbre across the spectrum, the tone is more even and has less oddities to it. The resolution is better with it resolving reverb In a way where you can distinguish between artificial and room based reverb. Apart from soundstage I don't see how anyone can say that the DT is better.

[@sidrolf]

This is the most fun headphone review I’ve seen thank you!

[@geoff650r]

So.... In a few years when the price comes down I'll get these, got it.

[@pvtcmyers87]

Or you can buy the 58x jubilees of $150 :)

[@christopherstorrier5560]

I just bought the 660S's, fantastic headphones, i use the 4.4mm Penncom cables, a lot of headphone DAC/amps have a 4.4mm Penncom balanced headphone output along with a 3.5mm stereo single ended headphone output nowadays, iFi Zen DAC (only £130 without power supply) among many that have Penncom balanced outputs, headphones & balanced output on rear of Zen DAC to amp if used that way...the Sennheisers sound far better listened to in balanced mode...i like the 150ohm impedence as i can use them with low powered headphone amps as they have a 104db sensitivity, even a good quality phone will drive them...good review bud

[@davidchen4538]

what dac/amp do you recommend for the hd 660s?