Logitech UE 6000

Well I have the UE6000s on my head and the 7520s in front of me and I've been switching back and forth. 
 
I purchased the UE6000s for about $65 CAD shipped! That is like, what a can of beans in the US? Definitely a great deal and lower than what I usually see them go for.
 
This review is also in comparison to a the Sony MDR-7520 which is one of the best studio closed cans I've had the pleasure of using. The MDr-7520 is like a very refined and balanced MDR-1R
 
Recently, I let a coworker listen to my 7520s , and immediately he was like "ugh, I don't like that its really hollow'. Then he went on to praise the music app on my Iphone saying he has never heard music so clear.  I just looked at him and smiled wryly, trying to explain there was little difference in the music app, what he really was hearing was the upper harmonic detail of the 7520s that is just rolled off on so many consumer devices. The thing is we all get so used to our preferences. 
 
Sound Comparison.
My quick assessment of the UE6000, oh my, these are not neutral at all, yet still clear. The bass is definitely dominant and loose. The high end is also rolled off. Again, clarity or the perception of clarity  is there, but information is missing. The result is pretty warm phone. 
 
Overall, the 7520 is a massive upgrade over the UE6000 as far as balance, clarity, bass solidity, mid-range presentation. I put its dynamic driver technicalities up there with the HD650, maybe a bit higher. 
 
Also, I don't think the amp or NC on the UE6000 has any real benefit. It does bring more excitement to the higher-end and the low-end. Can be fun for a bit on some genres. It's not as overblown as say something like the MDR-XB950BT.
 
Passively, the UE6000 is nowhere near the efficiency of the 7520. You have to crank it a fair bit.
 
The UE6000 has plenty of rumble though, and its pretty fun. The 7520 will still go very low, pay no attention to some graph measurements that show it rolled off on the bass, that is the Z1000, the 7520 has plenty of bass. The UE6000 sounds tubby in comparison. Drum 'n' bass, dubstep that is well-produced just tears it up on the 7520.
 
Frankly, really surprised that a number of reviewers have said the UE6000 is flat or neutral. I mean in a way it is, it is just  a downward ski slope. 
 
If it sounds like I'm completely dumping on the UE6000 I'm not entirely. It is more of a 'fun' headphone. You can even listen to acoustic music and I've thrown on some classical pieces, but its still like listening with cotton balls in your ears. 7520, vocals, and a whole range of instrumentation come alive. If the UE6000 is your reference, it may be a bit of shock going to the 7520 or another monitoring can. They are more forward than both my LCD2 and HD650 but still sound natural and organic. Somehow the highend of the 7520 is never piercing, but it also is not as smooth as the 650.
 
Hope my friend like these  was hoping for a bit more tonal neutrality. 
 
Comfort:
From memory I thought the dimensions of the ear pads were bigger, hoping these would be comfier than my 7520s. Surprisingly, while the 7520 is not as plush, it has more space to fit your ears. Still the UE6000 is soft enough that even being on top of your ears, it sits well. The 7520 seals very well and stays on your head. 
 
Build quality:
Well the UE6000 has some loose plastic bits, and is a little clattery. The 7520 has magnesium cups and a solid simple metal band. The 7520s flaw is that the cup holders are plastic and their housings can be downright squeaky. You can easily open it up and lube these components if its an issue. Otherwise, the 7520 is an awesome portable.
 
Isolation: I think the UE6000 is pretty good, and might isolate a bit more than the 7520.
 
The UE6000 is still a good headphone. The bass has a very good quality. I'm listening to it right now and you can kinda sink into them. They are pretty easy listen. 
 
BTW - I can EQ the UE6000 and it responds very well. Enough to push them into a much higher quality. The 7520 just start out that way without any adjustment needed.
 
Edit: and the UE6000 leak quite a bit more than the 7520. Which is weird as it seems like the isolate a bit more. weird but confirmed by girlfriend sitting nearby.
 
Update: I increased my rating of them a smidge, But still feel these are overly dark. This was after spending some quality time with them right out of an O2 / ODAC. These are consumer headphones done right. For the small purchase price these go used, they are steal. After you adjust to their somewhat murky dark signature, they really do have a lot of depth. Still a little coloured and a bit cloudy, but really, if someone isn't too picky this can be their end-game closed headphone. Diminishing returns could start around here, and depending on what you paid for the UE6000 it could be $50 USD! 
 
Definitely a fun headphone, and I may be tempted to get one myself.

Originally published in my blog,tertulis dalam Bahasa Indonesia: https://randomnessdotco.wordpress.com/2016/07/21/logitechue6000review/
 
How the story goes:
I find this headphone, which were hyped up to be a Beats Studio 2.0 killer back in 2013, on a pretty sweet deal of $36, with all the feature set it has, ANC, folding design, removable 3.5mm cable, I figures, Why The Hell not? and click the buy button on reflex, Short 2 days later a courier arrive knocking at my front door at 18 p.m. "Now, how does this one fares" was what i think
 
Company Background, UE (Ultimate Ears) used to mainly do business in Professional lvl IEM, founded by Jerrry Harvey, they used to work together with various companies like Shures and Westone, with them they has their various up and downs until recently at 2008 they were acquired as a subsidiary of Logitech for a $46 million deal, after that they went silent for a bit, until at 2013 they release a slew of product line, ranging from Wireless Portable speakers, IEMs and a closed headphone, together with its brothers, UE4000 (on ear non ANC) and 9000 (ANC with Bluetooth APT-X connectivity) Since then there's no revision for the Logitech Closed headphone, with low sales seems to be the case, the chance for a successor in near future seems low, does the performance reflect it's sad track record though? I guess we can find out
 
Packaging and Accessories:

 
The UE6000 comes inside a box inside an outer cover that's printed with picture of the headphone and specs on the back side. First time handling it I feel that it's quite weighty for a small box, and voila, Logitech actually use quite a solid box to protect the UE6000 from any damage when transporting, very different than 2 of headphone box I've ever has the chance to open (AT M series, and Grado Prestige), It has magnet clasp design that opens up its upper flaps, so it might actually be good for a display case on top of a desk.
 
 
 
Inside we will find the UE6000 nestled inside its soft travel case, a short 1.2m cable with 3.5mm TRRS audio jack on both side, with the one angled at 90 degrees, equipped also with Apple Compatible volume control and play-pause + mic definitely designed for portable use, no second cable for home use and the lastly, an Audio Jack splitter that works alright. On the flap is all the warranty papers (expired of course), user manual and other formalities.
 

 
The cable, as you can see is blue, both for black and white version, it uses rubber jacket and doesn't retain memory, there's a black label attached to the cable to explain just how deep the cable must be plugged to ascertain stable connection, overall a good cable without much of a fuss
The travel case is made of soft fabric with little reinforcement, only foam here and there to relieve the headphone from minor damage like scratches, it also has small pocket to hold the cable when the headphone is stored inside, as it's small the headphone need  to be folded in to fit, just the way it is when it came from the factory too. The zipper also has protection against forceful opening, and you can install small lock if you desire, won't prevent a thief from cutting his way in, but at least it'll be safe from the hands of chummy friend that like to borrow your stuff without your permission
 
Build:
 

 
Feeling impatient after checking other things one by one, we finally go to the star of the show, The UE6000, nestled inside the soft travel case it looks so premium, way above the price I pay for it, the construcition is solid,it uses metal on its headband adjustment and folding mechanism with satisfying "click" sound when adjusting, other parts is plastic, glossy on the earcup and doff on the headband side
 I've seen few cases of the headband becoming spoiled after months of disuse, so better take care of it. The padding on the headband is plush and quite broad, ensuring comfort on every part of the crown of the head that get into contact with it, the pads themselves is also plush and generous, actually shaped like a human ear, mine easily fits inside without any part get pressed on. The build quality justify the price it used to sell at, $199, and for the price I paid for it, it's basically a steal.
 

 
Now to the nitty gritty of the headphones, the left cup houses the battery, 2 AAA battery, the way to open it is by pressing the button located on the underside of the cup, the enclosure is non removable so it ensure you won't lost or break it somehow. the battery has been advertised to last for 40+ hours of ANC mode, quite generous if I may say, will be long before i need to change it. On the right earcup is where the cable plugs in, quite unlike the norm, and on the top side is the on-off switch, with LED indicators that turn green when it's in use with good battery condition, the LED turns red when battery is low and need to be replaced/ recharged. The siwtch powers on the built in amp and ANC functionality that will affect the sound, on that topic, lets plug in the cable and hear how they sound
 

 
Gear:
Sony Multiflip 13> Fiio Q1> UE6000 for amped desktop scenario
Fiio M3> UE6000 for un amped portable scenario
test also will be varied by ANC on-off
 
1) Unamped with ANC Off: Volume for enjoyable listening is at least 27/60, will reach 31/60 depending on environmental noise, It has warm sound with kicking bass, mids is a bit recessed, but not far behind, and treble that's a bit soft with roll off on the highest frequency. The most prominent really is its bass, very fun and exciting. I don't care about environment noise at all with its already great passive noise isolation
 
2) Unamped   with ANC On: Both the bass and Treble got lifted up, with much more quantity in the bass it reaches deeper but also more bloated and less controlled, mids feels even more recessed as the bass is shoving it to the side, also on the treble there's more sparkle, overall the sound become more U shaped, on this mode, there's also a need to lessen the volume with all the help the built in amp gives
 
3) Amped with ANC Off: just like un amped, but with the treble lifted up for every volume increase, overall if properly amped it sound balanced, very fun and engaging, making the listener want to do some headbanging, toe tapping and even dancing! This is the best scenario at which I like to listen the UE6000
 
4) Amped with ANC On: Even more forward bas and treble, honestly it can be a bit overwhelming, some basshead may like it, me? not really...
 
For some, ANC mode may give way too much bass, but on the other hand Basshead will love it, but that's just the versatiliy of the UE6000, it can give you a bass boost on just a flip of a switch , this function may not satisfy audiophile that want to enjoy quality music, but it can work beautifully when used for other scenario, gaming and movie watching for example, it just gives more of that Ooomph that's needed on explosions and gunshot blaring, overall more immersive. So I say don't just dismiss this as a gimmick, the switch also help to drive the headphone from non powerful sources, true that the sound change a little bit, but what's important is for you to get an enjoyable listening volume without introducing distortion by over pushing your source isnt it?
 
ANC test:
You can hear the hiss of the ANC working, it's unescapable when listening to it in quieter environment while listening to music with many silent passages like acoustic etc, but on music with richer tones and inside a crowd of cars and people talking you won't even hear it,  In my opinion it's better to turn the ANC off on quiet room as it sounds better and save more battery life for crowded, more hectic activities later on.
The ANC, when compared to higher priced models like Plantronic Backbeat Pro, Sony MDR ZX770BN, and Beats Studio 2.0 that I've tested before, it certainly is lacking, the UE eliminates sound on low frequencies with much narrower window, you can feel it working only on constant sounding low frequencies, like humming of AC, hub bub of traffic, falling rainfalls, etc. it also as usual isn't good at taking care sudden unexpected noise like babies crying or falling object, etc, the great passive isolation,  when combined with its enhanced bass section on ANC mode UE6000 will more than enough to prevent environment noise from disturb your music listening enjoyment when you're out and about.
 
Very short subjective comparison (can't do A-B ing, as I doesn't own them, only by memory)
Compared with Sony MDR ZX770BN, the Sony is more of a "sleeper" headphone that really trying hard not to be offensive for long duration of listening… some will love it, some don't for me it's unremarkable, the UE has it trumped in sheer enjoyment, tigher bass, better highs.
 
With Beats Studio 2.0: the Beats has the UE "beat", The studio has clearer  Mids and treble, Bass is dramatic, quantatively and qualitatively (equal mid than sub bass)  treble energy is quite nice, it’s a fun, exciting one.
So for me it goes Beats 2.0>UE6000>Sony MDR ZX 770BN, but that is only sound, the Sony has overall plasticky build, and actually sound worse when ANC is activated, it has bluetooth APTX though, so if that what you're looking for go get em, The Studio 2.0 has overall better sound, yes but it only works in ANC mode that can't be turned off, it has no passive mode and uses micro usb to charge its battery that only last for 20 hours, the gloss build on the standart version is also quite fingerprint prone, the UE beat them both is versatility, comfort is overall it manage to equal, rivaling, even beat some in sound. All of that, as you can see come with great difference in price  
 

 
Round up:
UE6000 is a headset for people who like their bass ot be deep, but also fast and controlled, not covering vocals and instruments, it won't make your ear feel fatigued even when your crank the voume up on noisy areas with its warm sound signature. UE 6000 is a perfect Fulsize closed over ear for you that demands comfort and isolation without sacrificing on sound quality and portability, that, together with ANC, music control+mic, and foldable design is a combo that's hard to get on such a low price, you better get one while it last!
 
N.B its bigger brother, UE9000 is a better build coupled with bluetooth connectivity it essentially has same sound. Everything I say here applies there, just differ in buil (those fold flat rather than in, and the connectivity, proven by InnerFidelity review as well, if you find one in under $150 it actually is a pretty sweet deal too  
 
 
*Update
Made a foam cutouts for the base of the box, now i can tuck it away when I'm away from home for a while, I know its a shoddy job, but enough for me as long as the UE and my other headphone fit in it

Sound - Let's start off with the most important category.The sound is so smooth and warm, like a warm glass of milk. It's really quite comforting. They really work well with most genres. In Radiohead's "I Might Be Wrong", the bass line tickles the left ear with depth and decent detail, while the guitar occupies the right side with intimacy. While the snare sounds a little dull and Thom's vocals seem lacking in texture and timbre, it is not at all offensive. The treble is very laid back on these headphones. Too dark sounding in a lot of cases. An equalizer will help. On the other end of the musical spectrum, Swedish House Mafia's "Don't You Worry Child" sounds exciting and spacious. The song distinctly sounds like it's coming from inside a club. The bass rolls along with power, yet nothing seems drowned out. And this is all with the headphones powered off. Flick he little switch on the right ear cup, they will bring out your inner basshead. It really brings out all of the low rumblies in the music you might not have heard before. Although, it does start to sound loose and it does start to have a significant effect on the mids. Overall, if you like warm sound with great bass, look no further.
 
Comfort - If you have a large head, big ears, and wear glasses, be warned. Despite the soft memory foam pads, they are always pressing my glasses against my skull. After watching a movie with them, I need a break. Also, my ears don't quite fit inside the headphones. They kind of just sit on top of my ears. However, I still manage to get a good seal with ease.
 
Build/Looks - Obviously, these are meant to appeal to millennials, such as myself. With design cues from the very successful Beats line, these, to me, are an attractive set of cans. They will be noticed if worn out in public. The build quality is excellent. The outside of the headband is covered in a soft touch rubber material. Unfortunately, it is a fingerprint magnet. The cups are plastic with metal accents. The inside of the Headband is made of thick aluminum that is quite strong.
 
Noise Cancelling - Don't think of this as a main feature, but more of an extra. The noise cancelling pales in comparison to most other NC headphones. It will help get rid of the rumbling of the bus of train, but it won't do much else. However, the headphones themselves without NC are excellent at blocking out sound. Another thing that the noise cancelling does is increase the bass. A lot. The bass becomes subwoofer-like. You'll either love it or hate it. It makes movies more exciting and has the same effect on Electronic music. 
 
Wrap-Up - Overall, these are great headphones. The smooth, warm sound is enticing and its good looks and build are a good touch. Excellent buy, especially for ~$70.

I picked these up for $50 (compared to $69 for the CAL! or $99 for the CAL!2).
 
Initial Impressions
They are a bit heavier and clamp a bit tighter than the CAL!
Removable cable is a plus, but a cable without a remote would have been appreciated.
 
They sound pretty good without the ANC turned on. Vocals are a little recessed. Good separation and detail. maybe a bit too much treble. Not as loud as the CAL! louder with ANC on and more bass, but reduced quality.
 
So far I'm not overly impressed, but will re-evaluate after burning-in and replacing the cable. 

I'm not an audiophile so my review would be from a layman's perspective. I've had these for more than six months and I love the sound quality. It wasn't great in the beginning but after sufficient "burn in" time, it started sounding better. The noise cancellation isn't that great but works pretty well. Your bass gets a boost when you turn on the noise cancellation feature. I really love the fact that you can turn it on/off. Why would I waste batteries when I'm not using noise cancellation? The headphones are a bit heavier when compared to competitors. You might feel the fatigue when listening for hours. 
 
My top gripe is that the volume, play/pause control don't work with Android phones. That's a big let down.
 
Other than that the headphones are fantastic. I would definitely recommend these to others. I bet you cannot get better ones for the price.

When listening to music , i used to plug in my razer electra's , not that its gone in the dumpster but it did give a solid sound. Now when i started to use my UE6000 the sound felt so different that it took me to a new level of listening. Like i stated in the pro  whatever genre of music plays the lows are very well defined that means the drums , keys and sounds that are normally drowned show up to an ever present smoothness. The mid's are a bit bait laid back but they contribute in making the sound refined and giving them this well textured layering that works well with everything over and below it. Now the lows and mid's are so separate yet chimed in that they sound beautiful when listening to music by bands like The Mars Volta , The Black keys , Staind etc. I know i shouldve mentioned the highs too before getting to the kinda music i listen to but here's the thing the highs are subservient to the mid's and lows , the don't go too loud but cautiously look over them to maintain the equilibrium.  
 
The overall V signature gives it a nice effect. Now all this said i was talking about the passive mode and before i explain about about it i want to say that im a movie addict and did my headphone search also mostly based on weather it would give the juice to those three dimensional sfx we love to hear in theaters. When i turn the ANC on , man am i in my own haven cuz its flawlessly superb for enjoying movies , series whatever be the genre. you get so involved and shut out from the outside world that you want to disconnect from sometimes. The preciseness of the positioning is a noteworthy mention here and the thunderous yet tight rumbling when sfx crash in is another. So it goes to say that when listening to just music unless its rap or hip hop i don't really use this feature.    
About the soundstage , its precise , accurate , yet not too wide like maybe higher priced models. It is what it is , around your ear staying loyal to its immediate vicinity.   
 
Now the gripe about my new buy is just this , i cant get them to play heavy metal music. Music like "21 guns" by Green Day , sounds a bit drowned by the bass and confused when the heavy guitar chorus kicks in. Does anyone else have the similar issue ? because i would really like to know. However songs by Metallica sounded great , and when it comes to the newer era of metalaholic , it performs a tad bit too slow in the mids / highs that make the livewire guitars sound lazy and chaotic.    
 
Finally the treble , overall i don't suppose that this is the best treble to have been experienced ,only because when it goes over a level there is a lac of it. This could also be the reason why metal music doesn't flow like high voltage electricity through these.    
 
The bass - perfect to the core and the drums beat with such effect yet maintaining that delicately precise smoothness that audiophiles and not bass-heads would admire.
About the sound isolation i feel these are a perfect work since i feel lost in another dimension when these are around my head   
 
The rest to say is the build quality which is quite evident in the picture , and when you get to actually hold one as it hangs sturdily from your hands you get to admire the beautiful modern simplistic design that has shaped these cans. There's leather at the top under , the band is made of a smooth rubberized finish and the frames are aluminium. The memory foam paddings are housed encircling the driver unit that covered by another layer of comfy blue foam cloth.   
 
So that's all to say and i dived straight into the sound quality first and then into the other aspects after it , so hope my review helped you in your buying decision.

Other Notes :  They did sound better with burn-in.  I wasn't impressed with the sound quality out of the box.  Active mode felt like sh!t then.

So I very recently started listening to ue6000, so these are early impressions. I must say these very well match my dark sound preferences. I am enjoying these quiet a lot.
 
Build:
 
Very good looking. Though made out of plastic so not very robust construction. Will require good care.
 
Comfort:
 
They are closed back and they do get sweaty. Cups are not very big so pads or inner cloth may touch your ears. Isolation is moderate with out noise cancellation, nothing ground breaking.
 
Sound:
 
I believe they are very well tuned. Bass is slightly thick and not very transparent. But it has good and satisfying impact. Mids are reasonably clear sounding. Slightly thick sounding lower mids affect clarity, but overall good for the price. Its a dark sounding headphone but treble sounds natural and detailed. So no pitfall here in my opinion.
 
Features:
 
They come with lots of nifty features like noise cancellation (haven't used yet as I used them in my room only), removable 3.5 mm to 3.5 mm cable (easiest cable swap I ever made), fold able with slightly padded pouch and a 2 way adapter (to use 2 headphones out of a single source). As well as a nice cardboard box if you want to store them in pouch.  
 
Some comparisons:
 
Sennheiser HD518
 
Both are dark sounding but treble sounds more linear and natural on ue6000. Mids are more clear and detailed on ue6000. Bass is thicker and more textured on HD518. soundstage has better width on HD518 but better depth on ue6000. Also HD518 is open back so sounds lot more airy. HD518 is slightly more dynamic, thus feel bit more transparent of the actual performance. Overall I paid slightly more for ue6000 than HD518, and  believe its worth the difference cause of mid range clarity and detail, as well as more natural treble presentation.
 
AKG K550
 
Very tough fight here. though AKG is priced quiet a bit high so is expected. On AKG, bass is lot more transparent and captures feel of actual performance very well. It goes much deeper as well. ue6000 bass almost feel one note in comparison. Though it has slightly better impact in comparison. Mid range is more forward on AKG and thus sounds richer. Also clarity and detail is much better. AKG also betters ue6000 in soundstage depth, width and imaging. ue6000 is darker sounding so thats one plus (in my books). Also it has better treble definition and detail than akg. Strange, but I find ue6000 to be darker but hasmore detailed treble.
 
Isolation though better on AKG, I find ue6000 more comfortable as they don't make my ears as sweaty.
 
Overall AKG is more dynamic and transparent, proper mid range can compared to portable ue6000.
 
Overall:
 
I believe their sound quality matches the price I paid (in middle of HD518 & K550). So value proposition is very high as all accessories and features are like added bonus.

I'm running these from a Galaxy Note 2 via an FiiO Andes E07k. Material is solely Spotify Premium these days (set to what they deem to be "Extreme Quality"). I listen to a wide range of music but favour pop, hip hop and classic rock.

These cans really had me worried at first. Initially they sounded like a blanket had been thrown over the music. Even after running them in for a week or so I was grabbing my Sony MDR V55s instead when I headed out the door. Most of my listening is done outside when I walk the dog or take the bus or train instead of the car. So for over a month I was quite disappointed despite getting them for a song (apologies) from Amazon and the fact that I love the design (white looks better I reckon) and the comfort. I was so concerned that I replaced the stock cable with a cheapish white Belkin "mixr" flat job. Didn't seem to make any difference to the sound at the time but it's shorter which works better for me and is less gaudy than the stock blue one imo.

Anyway after maybe fifty hours the bass cleaned up its act and is no longer outclassed by the Sony's. The MDR V55s have nice tight, punchy and extended bass so were a hard act to follow down low. I should mention I only listen with the noise cancellation on as they seem quite flat and lacking dynamically with it switched off. Bassheads like myself should be happy with the Logitechs. The midrange is now buttery smooth with no grain and plenty of detail. Treble is sweet but seems a touch rolled off compared to the brighter
Sony 'phones.

One annoyance is I often forget to turn them off and so the batteries keep draining. Passive noise isolation is good but the active noise cancellation is nothing to write home about. Having said that my girlfriend was impressed when she hooked them up to her Ipad Air to study while I watched TV. Comfort is excellent and build quality is streets ahead of my MDR V55s if not in the VModa league (but what is? M100s are next on my wish list, 50mm drivers, mmmmm).

In conclusion I heartily recommend the UE6000s, especially at 85USD. Get in quick as the new model will probably be back around the 200 dollar mark. Crapple are still flogging them for the equivalent of 300USD down here in NZ. And probably best not to listen to them much until you've let them run in for at least two days straight.

In my honest opinion, these headphones are worth the current price tag. For an active noise cancelling headphone, it really can't hurt to try these if you are in the market for a pair of headphones. When Logitech bought out Ultimate Ears, they wanted to enter the headphone market by creating a headphone that was priced fairly, and had the potential to beat out more expensive headphones.
 
You get the headphones themselves, a carrying pouch, a really nice durable feeling headphone cable that is very lightweight, and a headphone splitter.
 
Comfort, for me, is actually great! These headphones have a bit of weight to them, but i do not feel any discomfort when wearing these. The ear pads go completely around my ears and the headphones provide a decent amount of noise isolation, so i am able to use these outdoors. 
 
The sound of the UE6000 is really enjoyable, especially considering the price you pay for these nowadays. The headphones are not neutral in any sense of the word. The bass is very warm and defined in the signature. By the way, these headphones actually have two sound signatures since they have active noise cancelling technology. One in passive, and the other in active. But, overall, the bass is very warm and defined in both signatures. The mids have a kind of dryness to them that makes singers voices not sound all that engaging, to my ears anyway. As for the treble, it is somewhat rolled off, and as a result, the soundstage is a bit compressed. You don't get a huge sense of spaciousness in the sound, which might make some people not buy these. Overall, the transition from bass to midrange to treble is decent. I was actually surprised after these were fully burned in. I would recommend these headphones to people that are not audiophiles, and to people who are wanting a good traveling headphone. In terms of the actual noise cancelling feature, it is decent, but nothing special. The Bose QuietComfort 15 headphone are really what you want if your are gonna be traveling. While those headphones don't sound as good as these, they do have the upper hand when it comes to noise cancelling technology.
 
Thank you for checking out this review!

Just a quickie because I totally lack impulse control...
 
 Good sound quality for the money. Bass is slightly elevated. A tad soft but ok texture. The overall signature in passive is smooth and warm. A bit similar to stock UE900 but a bit warmer. Treble is generally soft but with some sparkle. Comfort is good and build quality is good although it looks a bit spaced out for my taste. The active mode adds some hiss and bumps the signature to more of a V-shape, It does remove some of lower frequencies which is most noticable on buses or trains or similar environments. Can make lower treble/upper mids sound a tad harsh on some recordings. 
 
Overall a great product and a steal at <$100. 

I wanted to do a review of the UE6000 over my HE-400 and HD600 because there's plenty on those already. The fact you can get the UE6000 for under $100 now makes them a great price performance HP and even at the $199 they were when they came out is fair imo.
 
The sound quality is typical UE because they have a nice smooth and warm sound which is how the UE IEM's I've heard all sound. The bass is smooth with good authority and depth as well has been clean and I haven't had any distortion in the lows at all. The go down to 20Hz then tend to start rolling off but that's typical with many HP's. Mids have that smooth warm to them with good clarity and detail, vocals sound very nice. The treble is the one thing that could be better as they do tend to sound subdued and lack some sparkle at times though on a whole they sound nice with good detail and never fatigue at all. As for the over all presentation I think for a closed HP they do very well with good depth and width is average if not a bit above at times. Imaging is good and I can get a good sense of were instruments are especially with live recordings and the separation is also a good part of that.
 
They're comfortable to me with a nice tight fit but not so tight that your head will hurt though if I'm listening for an extended period of time I'll take them off for a brief moment more so to let my ears breath. The cable is fine for what its used for though I do wish you could move them from side to side but that's not a big deal. Like most people with Android OS they don't work to where you can answer your phone with the controls but I've seen some HP's and IEM's coming out with more Android friendly controls.
 
That's my short little review of a good HP that imo is great for the price they go for now. I listen to them over my HE-400 and HD600 at home from time to time when I want a smoother warmer sound and yes they are warmer than the HD600 imo which I don't really think sound all that warm.

I'll start by saying that until a few weeks ago I thought beats were pretty good, so I am by no means an Audiophile.
 
I got onto these headphones due to my recent purchase of a M-Stage Matrix Dac and Desktop Amp to match. It was a bit of an experiment for me as I though that all this Audiophile talk was complete BS. So anyway I hooked these babies up to my beats and was underwhelmed, so I thought perhaps I was right. On a whim I connected the DAC up to a surround sound system I had lying around, set it to stereo and the difference really hit me. After that the beats just didn't compare, so I set out to find a better set of headphones. After the hit of the DAC and Amp I couldn't justify too heavy a cost so I read a review here about these and decided to give them a go. I haven't been disappointed.
 
I have varied taste in music so I have been putting these through Imogen Heap, Lorde, Stevie Wonder, Bob Marley, Train, Santana, Eminem, 2Pac and the list goes on. Not once did I feel that the headphones were lacking. As an experiment I went back to the beats studios, and now my sister owns a pair of beats studios and I do not. I would say the switch has been like going from listening to music in a club to listening in a live concert, not front row tickets but enjoyable none the less. I don't want to embarrass myself with technical speak I don't understand, but if I had listened to these at the time I'd bought my beats I probably would have saved a good couple of hundred and gotten myself a better pair of headphones.
 
Anyway in my opinion these are a great starting point for anybody who wants to get excited about how good music can sound. Great bang for buck, build quality is excellent and apart from the gawdy blue cable they look pretty good. Downside is I did not enjoy the active mode at all so it never gets used.

I prematurely wrote a review on this that wasn't all too positive. However, after about a week, my impressions have changed. I swaer I have been listening to these nonstop. At least for 50 hours.

Construction:7/10
Really good I think. They are built like Beats actually (studios), with similarities in the folding system, headband cushion, earpads, overall shape, and the active noise canceling. However, the actual materials are of much better quality. There's a good amount of strong plastics and metals within the design giving them a nice weight. The pads though aren't replaceable. I don't care that much since they're only $100 now. [EDIT: They have some creaks now. Very annoying.]

Style: 10/10
I have the black ones (I like the more subtle look) and they look fantastic both on and off the head. I get good impressions from friends and family and whatnot.

Comfort: 7.5/10!
When I first got them, they were a little uncomfortable. The pads were too small, and the clamp was too tight. Now, they are rediculously [EDIT: Somewhat Comfortable] comfortable. I believe the reason for my discomfort was because prior to the UE6000, I had used the MDR MA900 nonstop which is widely known for its low clamp and high comfort.

Other: 10/10
Isolation is the best I've owned. Works wonderfully on the bus and train. In this way, they are totally unique in my collection! I like them the most out of all the portable cans (well, maybe not the momentum or Focal Spirit One, but I'll get that) because of their isolation. They also have a detachable cable, IOS remote, ANC, and a headphone splitter right out of the box.

So far so good right? Let's talk about sound.

After many hours of listening to these things, I have finally adapted to the sound signature. The bass is definitely emphasized. The mids are really nice. They're kind of lush and boxy sounding, but in a good way. I really have learned to like it coming form the WS99/Momentum/1r.

The bass is very tight and very deep. I actually don't mess with the bass when using my EQ since I feel it is in the perfect place quantity and quality wise unlike the 1r or Momentum. These do well with EDM and things of that nature.

The mids are like I said, warm. They might be a little recessed, but when you consider how subtle the highs are,they're almost neutral. Almost but not quite, so I'd give 2-4khz a little boost.

The highs are rolled off... significantly, but they seem rolled off smoothly. No, these don't sound really airy, but they don't sound congested. Many headphones will boost the highs to give the illusion of great instrument separation and sound stage but these actually do without it. No, the soundstage isn't that large, but it has a good shape. For example, the KEF M500. Sure the soundstage has great depth, however, the width leaves a little to be desired. I imagine a long oval with the M500, but with the UE6000 imagine a slightly smaller than average circle. It's a little hard to explain.

With EQ, these are fantastic. However, overall, for rock/Jrock/Metal/Brighter Genres, they aren't very well suited since the warmth and body get a little out of hand. The bass is fast enough, It's deep enough, it's just the highs.

Overall SQ: 7.5/10

Comparisons: Home Use SQ
KEF M500 (better everything except weight and thickness)>M4U(Clearer, more balanced)>Momentum*better detail and resolution, worse soundstage)=ATH WS99(tighter bass, more balanced, better bass texture and quickness)>Focal Spirit One(Sound very similar, UE6000 is more balanced, more weight, FS1 has tighter bass, more intimate vocals)=UE6000=DT770 (More higher, larger soundstage, looser bass, less mids)>Fidelio l1=MDR 1r

On The Go SQ (Very loud Environment): Excluding the DT770 and Fidelio L1
UE6000=M4U>Focal Spirit One>Momentum>WS99=M500>MDR 1r

Overall, Which Do I like?:
Hard to say. I don't like the L1, DT770 the most. Not too much of a momentum fan with that tiny soundstage. The 1r just doesn't sound good enough. The M500 doesn't isolate as well as some of the others, and will slide off my head not to mention the comfort (or lack thereof). The FS1 is just too lower mid heavy. The M500 and ws99 are my faves, followed by the momentum, the ue6000 and FS1.

4.5/5 in the end since they're only $100!
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[Updated 12/12/13]

Revenge Of The Ner- err, Audiophiles...
 
If I were to sum up what types of headphone demographics there are, in an overly simplified way, it would be that there is the average consumers and the audiophiles & professionals. Saying "Consumer headphone" around head-fi has become synonymous with things like Beats By Dre, headphones known for putting image and marketing before audio performance. This is because the audience these headphones are appealing to are not going to be particularly difficult to please in the performance department. As long as the bass is significantly boosted, and the level of clarity is a coat of paint above pure mud; they'll be happy. Consumer headphones are also known for providing very attractive packages with with fancy finishings, lots of accessories, colour options, extra features, iCompatibility, celebrity endorsements, marketing guff etc. These headphones are made to be sold to people in high volume. Audiophile and professional headphones, on the other hand, have a very different purpose. These headphones have essentially no marketing budget, and they rarely attempt to get sales from gimmicks or included extras. These headphones rely almost purely on their reputation for sound quality, which is passed on by word of mouth (or fingertip) through the enthusiast community. The people who buy these headphones are critical, sometimes fanatical, about sound. 
 
However, it's not so black and white. There are headphones that fall into the grey area between consumer and audiophile. These headphones will have the traits of a consumer headphone (the fancy packaging, cutting edge styling, generous accessories) but with sound that will actually please audiophiles on some level, rather than causing them to fantasize about inserting an ice-pick into their frontal lobe. The best example I can think of is the V-Moda M80, which took Head-Fi by storm. It's a genuinely exciting proposition to have a headphone that has the best of both worlds. The Logitech UE6000 is allegedly another possessor of consumer and audiophile traits, however, I'm not so convinced. 
 
First impressions
 

 
In true consumer headphone fashion, the UE6000 has premium packaging that's fun and exciting to unbox. After removing the outer sleeve and opening the hard storage box you find the UE6000 inside the black and blue zip up carry pouch. It's a very attractive package, and certainly makes you feel like you've bought an expensive headphone. After unzipping the pouch you find the headphones neatly folded inside, which is a feature I certainly appreciate. These certainly make a great first impression, because they are very attractive headphones. I'm a big fan of this styling. It's very contemporary and sleek, but not edgy the way the V-Moda line is (which is neither good or bad, just different). The headphones are padded in nice quality pleather which feels quite thick, so it should hold up reasonably well. It would want to, though, as the design doesn't allow for the pads to be removed, and there are none available for purchase which is not particularly impressive for a premium headphone, if you ask me. Included is the blue iCable, headphone splitter (male 3.5mm to 2x female 3.5mm) and zipper carry pouch, all sharing the desirable aesthetic design of the main event.
 
With it's sleek lines, matching accessories and non-gaudy sensibilities I find the UE6000 to be a very good looking headphone.
 
Build quality
 
One thing I was quite surprised with was that these headphones are actually very solidly built. I think the reason I was surprised by this is because these headphones share somewhat of a resemblance to the Beats line up of headphones, with the shiny, coloured plastics look. This isn't an aesthetic that is commonly related with sturdy build quality. This is an exception, though. No, they're not quite V-Moda level, but they're very respectably put together, which is something I appreciate. Feeling like you're getting your money's worth in the actual physical object goes a long way to making me a satisfied customer.
 
The first thing that stands out about the build is that these headphones feel heavier than you would expect. They weight in at around 270g, which is a good 25g lighter than the DT880. However, the UE6000 feels heavier somehow to me, in both hand and on head (I'll address this in detail in the comfort section). I think this is because they're a smaller headphone than the DT880 but weigh nearly the same. This gives them a very solid, substantial feeling which lends itself to a sense of quality. The finish on the headphones is very good, as would be expected due to it's good looks, but it's also solid in it's construction. The inner headband core at the arms and hinges appears to be solid brushed aluminium, which not only looks cool as hell (I go weak at the knees for brushed alu) but is obviously very strong. The part where the headband meets the cup is also metal, with an attractive raised UE logo. The padding on the headband and earpads are a nice quality pleather, and are generously stuffed with a plush foam. 
 
The plastics used are certainly nothing to sneeze at, either. Plastic is often seen as a bit of a dirty word, but it's a necessary 'evil' in headphones as I don't find heavy headphones at all comfortable. As long as the plastics are good quality; then they're OK with me, and the UE6000 is a good example. The headband plastics sport a rubberised finish, which you often see on things like PC gaming mice. It's a nice touch that goes a long way to make the plastic construction more premium than it would otherwise be. The plastic cups (I opted for the white version) have a gloss finish that looks very attractive. I appreciate the contrast between the glossy, metallic and rubberised finishes that the headphones have. Certain other headphones can come across as one note (in visual appearance but sometimes also in audio performance, too  ) when they go all glossy. The plastics used feel thick and sturdy, and give me faith in their durability.
 
The UE6000 is a nicely built headphone that reflects quality at it's price range.
 
Sound Quality
 
Unfortunately, the sound is the first of two important areas where I found myself disappointed with the UE6000. Don't get me wrong, I think the UE6000 is good in the sound department, but it's too lacking for my tastes to be totally satisfied. Listening was done from the Audio GD NFB15.32 via optical connection from Foobar2000 with the V-Moda Audio Only cable and V-Moda 1/4" adapter. I heard no difference between the stock cable and V-Moda, and yes, I'm 100% sure it was plugged in fully.
 
The bass on the UE6000 is modestly boosted above neutral, and this is noticeably immediately. It's quite tastefully done, though. It's clearly warm, as will play along very well with musical genres which benefit from this, but is balanced enough to tackle other genres. I actually think the bass response on the UE6000 is pretty good, though it's not perfect. I found it to be well extended and surprisingly textured. The bass of the UE6000 possesses more than ample punch, and will play well with electronic and hip hop (which are the two genres I most strongly recommend these headphones for. It's fairly well controlled, too, with very little (if any) intrusion on the midrange. The one thing I didn't like about the bass, however, is that it sounds a bit too sluggish for me. It just doesn't seem to keep up with fast, frantic music, at least in my listening. I don't have particularly high requirements for speed, I'm forgiving of headphones being a little short of Grado level speed. Unfortunately, this one sounds just a bit too slow for my liking. Bass tightness is good but not outstanding.
 
The lower midrange is probably the best area of the sound for me. It's very warm and thick, with good texture. It really has a great body to it, sounding rather lush due in part to the well endowed bottom end of the UE6000. I really enjoyed the way male vocals came through on this headphone, as well chunky guitar distortion. Very satisfying. Things are more problematic in the upper midrange, though. I find that it sounds lacking to my ears. I believe this is because the UE6000 (in raw measurements) lacks the upper midrange spike that many headphones possess. It just lacks the bite and presence that I'm used to and, quite frankly, enjoy very much. It gives me the sense that the headphone sounds a little 'glazed over' in that area. This was something I tried to get used to, but I just couldn't.
 
The treble response is even darker again, and I found that for more recordings than not, I craved more treble energy. In certain instances the treble came through quite well. I found this to be mostly the case in less crowded, better separated recordings. But in something a little busier, I thought that the treble got a little lost and left me unsatisfied with how much I could hear. This was the biggest area that during A to B comparisons between the UE6000 and the Creative Aurvana Live, I preferred the CAL. Imaging and instrument separation I would say is slightly above average. Nothing particularly noteworthy, but certainly nowhere near poor. 
 
As this is the first active noise cancelling headphone I've owned, I guess I should cover that, too. As a note, I bought this headphone purely for it's passive mode as I have no interest in ANC for home use (and since ANC has a strong correlation with worsened sound quality). The first thing you notice is that the headphones get noticeably louder. To my surprise, I like what the ANC did to the treble. It boosted it up to more satisfying levels, thought it did sound unnatural. Almost as if it was super-imposed over the music, and not accurately placed from an imaging perspective. The bass also receives a significant boost, putting it up to basshead levels. This could be kind of fun to play with on certain tracks, but it's ultimately not the kind of bass levels I want for listening, regardless of genre. It also had the effect of being superimposed, and I also thought it sounded a bit looser in the ANC mode. In any case, It's just too unbalanced for me. The actual noise cancelling ability also seems rather mediocre to me. I found it helped block out lower frequency noises the most, but in doing this it somehow made voices of conversation around me more legible, which was very distracting. There was also a noticeable hissing sound. Not a fan, especially since the UE6000 passively isolate very well. For home use, the ANC really is superfluous.  
 
Overall, I prefer the sound of the cheaper Creative Aurvana Live. The treble and upper midrange presence really make a world of difference for me. While the bass extension and texturing aren't quite as good with the CAL, they're not too far off, and the CAL trumps the UE6000 in speed easily to my ears. The imaging and separation are also a bit better with the CAL for me. It doesn't leave me overly impressed with the sound of the UE6000 when a headphone half it's price beats it pretty handily. Unfortunately, sound isn't the only thing the CAL is better at...
 
Comfort
 
One thing I really don't quite understand is how certain people on head-fi are explicitly willing to sacrifice comfort. I suppose (refer to my opening paragraph) that different types of people want different things. We all know the type that don't care about sound quality too much, they want a fashionable accessory to make them look cool, and hey if I can listen to music on it then it passes. For me, though, I consider comfort to be as important as sound quality. I simply cannot enjoy a good headphone if the comfort isn't there. An uncomfortable headphone is just as useless to me as a bad sounding one.
 
As I mentioned earlier, the UE6000 is a headphone that feels surprisingly heavier than it actually is. Whilst this is kind of nice for making it feel sturdy, it does it absolutely no favours when you're wearing it. When the UE6000 is on my head it just feels like the weight isn't being distributed properly somehow. I can't think of any other explanation for why it feels heavy, but it really does. The DT880 is a headphone that weighs more than the UE6000, but it seems to spread it's weight out in a nice, soft hug against your noggin. The UE6000 seems to more awkwardly clamp itself to you, and it just makes the weight feel intrusive. Kind of hard to explain but that's the sensation I get. 
 
The headband padding is quite generous, but for whatever reason it leaves me with a bit of a hotspot. I believe this is because it doesn't conform to the curvature of my skull, so it's putting the weight on the peak of my head, while the rest of the padding doesn't make contact. I also have fit issues with the earpads. While the space allocated for your ears was fine for me depth and height wise, I found that it was very narrow. This really made it feel cramped for me. It ended up irritating me and I could never quite get comfortable. 
 
Overall, I find the UE6000's comfort to be disappointing. To me they felt heavy on the head, the headband gave me an annoying hotspot, and the earpads didn't allow enough space. This greatly affected me ability to enjoy these headphones.
 
Conclusion
 
These headphones ended up being a disappointment for me, and I sold them after a month of ownership. Whilst I think they were very admirable, downright great even, in aesthetic design, build quality, accessories and isolation, I wasn't overly impressed with them in the two areas that matter most. Their sound quality and comfort really just didn't deliver for me. I think they fared quite well for hip hop and electronic, but I wouldn't really recommend them for anything else. Despite the negative things I've had to say about it, I think these things (in the context of how much quality you do get) are pretty forgivable seeing as how it's been going outrageously cheap as of recent. If you can get it under $100, and you know you prefer a darker sound then they're probably worth trying out. They're just not for me, though. I don't think they're at all worth the $200 they RRP for, though. No way. The CAL is a more comfortable, better sounding headphone for less. 

I would like to begin by saying that I am no "expert". I don't own expensive headphones, amps and such. The only experience I have with hi-fi headphones is through meets and such. I will do this review from a normal persons perspective. That means I will not use any amps or such things, instead drive them from things like iPods, phones and my laptop. I feel there are plenty of impressions of these with proper equipment so coming from a normal consumers point of view might help more. So without further adieu, lets get to it.
 
Equipment used:
-iPod touch 2nd gen
-iPod nano 5th gen
-iPod nano 6th gen
-Sony Xperia S
-Dell Inspiron 15
 
Music used:
-Michael Jackson Thriller flac
-Michael Jackson Dangerous flac
-The Beatles Blue Album (Greatest Hits) flac
-Drake Nothing Was The Same flac
-Frank Ocean Channel Orange flac
-Justin Timberlake 20/20 Experience parts 1 and 2 mp3 @ 320
-K-OS Atlantis Hymns For The Disco mp3 @ 192
-Eminem The Slim Shady LP flac
-Eminem The Marshall Mathers LP flac
-Taylor Swift Safe and Sound (song) mp3 @ 320
-Daft Punk Random Access Memories flac
-MGMT Oracular Spectacular
 
NOTE:IF YOU ARE LOOKING FOR GOOD NOISE CANCELLING HEADPHONES, LOOK ELSEWHERE! IT ISN'T VERY GOOD AND IT MESSES WITH THE SOUND.
 
What you get for your money:
- soft, zipped carrying case
- headphone splitter
-wire with iPhone mic and controls
- the headphones themselves
 
Disclaimer: I have NEVER been to good at explaining sound and using proper terminology. This was the best I can do right now :/
 
Lets start with what I feel is the most important thing for headphones this size to get right. Comfort. If the headphone isn't comfortable, no matter how good it sounds, I don't want it on my head. To say these are comfortable is an understatement. I have had these for a while now (since March) and have worn them almost every day since. The pads have pretty much moulded to the shape of the side of my head/ear. All I have to say is, they are supremely comfortable. I wear glasses and feel no discomfort at all. I do not wear earrings so I cannot help those of you who do. One thing I will say though that might be a negative is that the clamping force on these is very light. When moving around, say in hallways at school or just standing in a train, they tend move a bit on the head and as such, you will have to readjust them (not a huge problem, it take a slight tap). They can be classified as "heavy" but you will never notice. And if you're like me and don't use ANC, removing the batteries certainly helps in this regard.
 
Now, the part most of you want to hear (get it ) about: the sound.
I want to say, for those of you who believe in and care about burn in, I can safely say these are burnt in. Lets start from the lows and work our way up.
Bass heads, unless you want to use ANC constantly, look else where. That's not to say that the bass is weak in passive mode. It certainly has presence. It won't be a subwoffer attached to the side of your head, instead what you get is bass where and when it is needed without being too thumpy (only word I can think of to describe it) and muddy. It works great with hip-hop and pop music. It certainly won't bleed into the mids like a certain headphone might.....ahem.
 
If there is one thing I can say about the mids is that they are near perfect. Clear would be an excellent word to describe them. And that's all I got to say about that. /gump. Voices sound great.
 
Now the not as good part, depending on who you are. The highs. Slightly rolled off would be the best way to describe them. Though that's not a deal breaker at all. One excellent thing about the highs though is they are not sibilant what so ever so to those of you who feel the need to pause your music after a while due to listening fatigue, worry not. It has very consumer oriented highs. What I mean by that is that they won't have the most detail (still there though) and they're not perfectly placed, but they sound great and most, even audiophiles (they can be picky), shouldn't mind them (especially for on the go use).
 
The wire is something to be kind wary about. It's nicely made, tangle resistant and thick. I have had no problems with it and the buttons are great. The reason I wanted to mention the wire is because there isn't really any strain relief. That can lead to problems down the line but you shouldn't worry about it. It is replaceable and Logitech  UE sells replaceable ones for like 20 bucks. Just thought I should make a note of that for anyone curious about the wire.
 
The Design: Best looking headphone I have seen. Period. It certainly is a head turner, though I have the black one. If you really want to stand out, I recommend the white ones. They look absolutely stunning in person. This comparison has been used before but I can think of no better way of describing it. They look like an Audi R8. Sleek lines and all. If you choose the black ons, keep a microfibre cloth to wipe it down once in a while as it is a magnet for smudges and fingerprints.
 
Conclusion: If you're in the market for a pair of headphones, and have a budget of less than $300, you simply can't go wrong with these. Fun, non fatiguing and easy enough to drive without any extra amping and such, it's a great headphone for normal people and those who want good sound at a great price. Oh and they fold, which makes them just as great for on the go use as home use.
 
Thanks for reading

For $199 or below, I couldn't find a better headphone out there.  Having the batteries in the headphones allow it to sound great with just my phone.  I got some higher end headphones, but I had to use an amp to get the sound out of them.  First, I went 4 1/2 starts, then I changed it to 5 because if I have my music going at a medium volume, I don't hear anything at an airport or loud restaurant.  Again, the canceling isn't as good as the Bose Q15's and I haven't heard the 20's yet.  Also, I had the Bluetooth version of this headphone and wish I would have kept it because no wires are great even though I lost some sound quality.  But, I needed the $200 at the time.  Hope this helps!

***** DISCLAIMER - Comments in this review are based on the value of the headphones, (I paid £35 for open box pair) they are good for the money and it is all relative to the cost of them compared to other headphones of similar price, compared to more expensive headphones these are obviously not as good.****

Sub bass - Not perfect but good... 

Mid bass - good but not great.

Lower mids - Actually really good I think.

Upper mid - I think this headphone would be  better if 3Khz and up were a bit brighter and more detailed. Still good for the money and fits well with the rest of the sound.

Lower treble -  Some grain and sibilance but not bad, no more sibilance than is present in the recording..

Upper treble -  You can get better headphones for treble for the same money, but these have a good overall sound.

Soundstage - Not huge but ok for a closed / small / portable  headphone, I like the presentation, sounds less hollow than M50 and has a nice 3D effect at times.
 
Overall - Good especially for modern genres such as electronic music etc. Although you could get better if you listen to only metal, rock or classical for example, as an all rounder though... good value if you can get them under about £60.

These headphones are awesome, bought it in London and happy with it! Cool looking, good sound quality!
Bass: I'm a basshead and I love the bass in the active mode and in passive mode it becomes neutral just like the sennheiser momentum
Mids: sounds very good with vocal, little recessed in active mode
Treble: can't say much, a little to non-sibilance depents on the song!
Noise cancelling: decent, cant compare to my ie80 or sen cx980 in this case
comfort: very comfortable although a little heavy and becomes hot after a while

*Will expand over the next few days*
God damn.  I don't know what to say.  I currently own a pair of Monster Turbines Pro Gold and a pair of V-Moda M-80's.  I wanted to get an over-ear to complete the collection for now.  I am in no way in expert in sound.

 

 
Accessories    
The whole thing is packaged quite nicely.  It comes with quite a few accessories.  A soft carrying case, a gold-plated 3.5mm cable, a headphone splitter (Don't know if that is the proper term), and a pair of batteries already in the headphone.  The splitter is used to share your music with others.  They just plug there headphones in there and bang.  The headphones have a snug fit in the case.  The cable seems high quality with a striking blue color.  It has a microphone along with a volume up/down and play button.  I believe these only work with Apple products.  Quick note: I've heard complaints that the cable does stay in the headphones.  You must push the cable in a bit for it to lock in with the retention device.  These headphones are tough enough to take a light push.  Speaking about toughness...
 
Here is photo which shows the cable.  You can see the three button mic also.
 

 
Build Quality
These cans are built pretty well.  Various materials such as glossy plastic and metal are used.  Because of the materials, noise-cancellation tech, and batteries lead these cans to be pretty heavy. This doesn't bother me too much.  These just feel nice to hold in the hand.
 
Here's the soft carrying case.
 

 
Here is the case with the UE 6000 inside.

 
Design
The headphones are quite stylish.  They look nice while not appearing aggressive like other rapper endorsed cans.  They do fold making them quite compact.  An interesting thing to note is that the 3.5mm jack on the headphone is on the right instead of the left.  Most cans have them on the left.  The left cup pops open to reveal 2 AAA batteries.  The part of the cup that pops off those not completely come off with I felt was a strange design choice.
 

Here you can see the folding mechanism.
 
Here is the battery compartment.  You can see a small button which releases the the cover.
 

 
 
 
Comfort
These are extremely comfortably.  I mentioned before that these cans are quite heavy so that might turn some off.  The cushions are quite soft and the cups are very deep.  The cloth that covers the driver is thick and soft so if your ears happen to touch the driver it won't be too uncomfortable compared to headphones like the M-100.  
Sound Isolation/Leakage/Noise Cancellation
The cans themselves block out a damn good amount of noise.  Lower frequencies are blocked very easily such as buses and trains.  Leakage can be a problem for some.  These do tend to leak quite a bit at around 75% volume, hell even at around 50% if you are in a very quiet area.  Since these block out a great deal of noise then I don't believe there would be much reason to turn them up so loud anyways. The Noise Cancellation is decent.  It completely blocks out lower frequencies.  Buses and plane engines disappear.  Even with Noise Cancellation on voices nearby can be heard very easily.  I find this to be useful as I can still maintain conversations with these on.  If you are buying these cans for Noise-Cancellation, look elsewhere. 
 
Here is the button that activates the noise cancelling function.
 

 
Sound Quality
The UE 6000 is warm headphone with slight bass emphasis.  The bass has a good punch with some texture but is not as tight as let's say the M-80.  The mid-range is quite balanced and everything in it seems quite "natural".  I tested these cans on various on various tracks but I'm going to mention The Dark Side of the Moon a lot.  Highs are clear and in the The Great Gig in the Sky, the female lead sounds astounding.  Nothing really feels laid back.  Drums have a nice punch in various tracks while the vocals of Roger Waters are eerie as usual.  A few adjustments would make these cans truly amazing but for this price they really are in the end.
Sound Quality w/Noise Cancellation
This is where the UE 6000 falls short.  An EQ is activated when the Noise Cancellation is turned on which bloats the bass and cause the treble to be slightly recessed.  The bass is much more dominant and a more "U shaped"  frequency appears.  While these changes might upset the audiophile in us, it makes sense to have this new sound signature in situations in which NC might be used.  One might watch a movie with NC on so one won't be distracted.  The added bass might make the film feel more lively and if one goes out to a loud area the bass can add a little more "bang" to your music.  Damn it was hard to describe that. 
Conclusion
The UE 6000 is a great pair of cans for the audiophile on the go.  It has a great design, great build, great isolation and most of all, great sound quality.  While it certainly isn't the best compared to let's say the Momentum as a portable headphone, for 200 dollars it is.  The only headphone I can truly think can compare to the UE 6000 is the M-80 which has it's own ups and downs such as discomfort and lack of a folding mechanism.  Enough of that now, that's for another review.
 
Bonus Photos
The cups are quite deep.  There is a thick layer of cloth covering the driver so if your ears happen to touch it, it won't be too annoying.
 

 

Here is a size comparison of the cups to a 4th Gen Ipod Touch.