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When Bose released the AE2 headphones at a fraction of the price I snapped them up immediately and honestly have not had a better pair of headphones before. They are incredibly comfortable and light and the sound quality is superb. I won't do a high fidelity review on them as this review is for the QuietComfort 25's but suffice it to say, Bose had set the standard and I thought I would not require another pair of headphones for a long time.
Then I got Tinnitus....
I don't have tinnitus badly, it's only in my left ear, a constant high pitched feedback type sound that seems to vary in pitch depending on the day I have had. I've had tests and the specialist I am seeing says it is due to stress. A synaptic response that has been broken or interrupted causing my brain to interpret the sound it hears differently. The engineer in me sees this as wind on a telephone line that causes unwanted noise. Why is this relevant to this review? Well I had talked myself out of buying the noise cancelling headphones knowing that I owned the AE2's but the revelation I had tinnitus made me want to explore all options as it appears tinnitus in not curable. I'd read that Tinnitus could come and go, it could get worse but also better and some people were finding relief from noise isolation.
On paper this shouldn't work, the sound I hear is fake, it's produced by me, not something that can be affected by noise cancelling headphones. As you probably know by now, noise cancelling headphones work by using microphones to listen to the sound around you and then reverse that same sound wave to create a natural wave that 'cancels' out the outside sound wave. Simple and yet very effective. But if the sound is in your head then the sound is not going to be picked up by microphones and cancelled out. So how can these help with tinnitus? Well for me the issue is the type of noises I've been subjected to, the less noise my brain has to combat the quieter my tinnitus is. By isolating myself I get a respite from the constant sound in my left ear. It doesn't go away, but it does get dialled down which trust me is worth the price of a few hundred quid.
So, tinnitus aside there is a lot to these headphones worthy of such a lengthy review.
1 - They are very well built. Lightweight but still durable, the hinges used to fold the ear cups inward for travel feel reassuringly 'German'.
2 - The above means they are very comfortable even after hours of use. This is an important point to take note of if you are new to noise cancelling headphones. There is a lot of extra hardware in these headphones and not every manufacturer can do that without adding bulk and weight. My benchmark for comfort are my Bose AE2's which are amazing but these are in similar ballpark, not quite as light as the AE2s but streets ahead of the rest I have tried.
3 - The sound quality is superb. I should point out that there is a marked difference in quality when the active noise cancelling is on versus passive listening (when the NC is off). These headphones work best when turned on, the base is both deeper and when you listen to a deeper track with various basey sounds the low end instruments are more defined. Equally the higher notes feel more distinguished, so much so that I felt encouraged to try out my equaliser settings again to examine the different flavours of sound suddenly on offer.
4 - Passive listening. When the battery runs out you can continue using the headphones in passive mode. Not all NC headphones do this, the QuiteComfort 15's don't and that was a factor in me not buying them as it is annoying when you are on a plane and suddenly run out. The sound quality isn't quite as good, but it's still very enjoyable and if you are listening to a movie you won't notice the difference. It's only o



я бот для 11.3 к это очень стоит купить это для профессионального и личного использования. Кристально чистое качество звука.

As I mentioned I use these headphones primarily in an office environment to listen to music (I'm a software developer) and/or to just block out the constant hum of HVAC systems, etc. I've been reading countless of reviews on numerous headphones looking for something that fits my needs and after much consideration I settled on the QC25's.
The main things I took into consideration when looking for my replacement headphones were: comfort, sound quality, noise cancelation, noise leakage, craftsmanship/durability, battery life, case, style, features (wireless/playback control/etc), and price. Here's how the QC25 rates:
Comfort - 5/5 - These are the most comfortable non-studio headphones I have ever worn. They are fairly light weight and have a large over-ear design. The ear cups are also fairly deep so there's no contact between my ears and the ear pieces at all. The cups rotate to allow you to wear these comfortably on your head however you desire. The material on the ear cups is a soft foam filled leather that doesn't apply too much pressure to the side of the head (I wear glasses so ear comfort is of utmost importance to me). There is also a foam filled suede material on the top of the headband making the headphones rest comfortably on your head.
Sound Quality - 5/5 - Excellent and well balanced. If you're looking for headphones that just amplify the lows and the highs, these are not for you. If you want solid lows, crisp highs and a pronounced mid-range then look no further. These headphones play the music as-is and let you control any equalization you feel is necessary for your best listening experience. I suppose if you're just into thumping base and are listening from a mobile device that doesn't support custom equalization you may be better off with a different brand.
Noise Cancelation - 5/5 - The first thing I did when I got these is pop in the included battery and walk into my furnace room (the furnace was running) to see the impact and it was profound. These far outperformed my previous noise canceling headphones (which weren't too shabby). At work I sit near a call center where there are typically 4-6 people on the phone during busier times. There are also heat pump units in the ceiling which hum and buzz throughout the day (especially since the temperatures have been in the single digits the past several weeks). The second I flip the switch on all of the humming and buzzing is gone without a trace. The call center noise is also greatly reduced (I'd say about 70% quieter than without the headphones on) to the point that I have a hard time focusing on any one conversation. This is of course remedied when I turn on some music and the awesome sound quality completely drowns out any remaining distractions. I frequently have colleagues walk up and do jumping jacks to get my attention as I don't even hear them knocking on my desk when I'm "in the zone".
Noise Leakage - 4/5 - One of my slight disappointments with the QC25 is the level of noise leakage (the amount of sound that can be heard by people nearby). At a comfortable listening level the noise leakage can be heard from 4-5 feet away. If you like to listen to your music loud, expect people up to 10 feet away (in quiet environments) to sing along with your tunes. I'm currently in a cubicle environment so the closest person to me is about 5 feet away, however at my previous office I sat 3 feet from another guy with no divider so it definitely would have been an issue there (except he wore headphones all day as well ;).
Craftsmanship/Durability - 5/5 - I only have a couple pairs of headphones to compare these to but they look like they are made well. The joints and swivels are made with metal parts and are fastened with screws. The headband is made from a metal ribbon surrounded by plastic. The cup internals are covered with a rugged cloth (as opposed to the foam covering which often disintegrates after extended use). The ear cups are a foam filled leather material that seems durable (same style on my old headphones and those lasted 4+ years). Even the cord is made with sturdy gold-plated ends. They flex well and seem like they would last a long time even on larger heads. (I had a friend who ate through headphones due to his large head).
Battery Life - 4/5 - So far the battery life on these is acceptable. The noise canceling feature is typically on for 6-8 hours a day and I find that so far I've gone 2-3 days before swapping batteries. I am also using some old



I'll start with the "big deal" -- Noise Cancelling:
Ask almost anyone what they think of when you say "Bose Headphones" and they'll say "Noise Cancelling". In this respect, the Bose do not disappoint. This is my first set by Bose and the first time I "flipped the switch" I got a huge smile. Much of the world around you just disappears. It's an almost eerie experience. Further time with them showed me that the sounds that disappear the most are low rumbling noises. For example, our dishwasher, lawnmower and garage door opener are almost completely silenced. But higher sounds like peoples' voices and the squeak of a shoe on the floor are just muffled.
A special case here: During flights, the sound of a jet engine is still noticeable but very nicely quieted. It's actually easier for me to hear other people speaking which is rather strange.
Additionally, something that *bothered* me a lot during two flights was that the overhead air vent would blow at a perfect angle onto one of the Bose microphones that it uses to cancel sound. Whenever this happened, I would get a loud "air whooshing" sound in the headphones and needed to readjust my head to move away from the vent. This only happened in the unique situation of being on a jet but I found it very irritating.
My conclusion on the noise cancelling is that it is real. It works and is not just some gimmick. However, as noted above, it does have certain limitations and its own unique set of irritations.
Comfort:
They are *very* comfortable. There is soft foam in all the right spots and they don't push on my ears. The bridge across the top rests on my head just right. I've worn them for four hours at a time and felt no discomfort. No complaints at all here.
Noise Quality:
This is probably going to be the most controversial part of my review. At this point my QC25 probably have about 120 hours of music time on them. They have been through the "burn in" period that others have said they need. I feel that the sound is "pretty good for the price".
The highs are a little exaggerated. The lows are pretty decent. The midrange is about where *I* feel they should be. But, here's the thing, they do not bring out any nuances in the music. To me, this is a big deal. I don't hear the guitarist's fingers sliding on the the strings, or the accidental background conversation that sometimes gets picked up (or the occasional cussing when the musician misses a note). These are the little things that make me feel like I'm there, in the studio or concert hall and the Bose fails here.
If most of the music you listen to is modern pop, I suspect you probably won't care as much about these things (forgive me for saying). In this situation, I still the Bose would be a fine choice.
Style:
Well, personally, I don't like the white style. I'm old-school. Black and grey is beautiful. The blue cable make me feel like I'm standing out even in the airport. I want to stand out for other reasons, but the Bose absolutely draw attention to themselves, even in a jet full of Bose wearers. Final thought on this? To each their own. If you like the bright white, go for it.
Battery Life:
Pretty consistent so far. A little over 30 hours on each AAA battery. I keep one battery in the headphones and two spares in the case. This has allowed me to never be anywhere near running out of juice. By the way, the case provides a nice built in slot for one spare battery.
Case:
The case is bulky but as small as this style can be made because the headphones fold flat. It's a little awkward getting the QC25s back into the case the first time or two but after that you'll be a pro and exiting the plane in no time.
Compared to other headphones:
So, here's part 2 of my controversial statement above and a lot of people probably won't agree...
The Bose are *noise cancelling* not *noise blocking*. For years, my daily headphones have been a pair of Ultimate Ears SuperFi 5 Pros ear buds. I love this style of ear buds. They do not provide noise cancelling -- they *block* noise. Lots of noise. They also provide all of the sound benefits that I mentioned above. In short, I believe that in-ear earbuds provide superior sound compared to the Bose.
HOWEVER, the Bose are not in-ear. They fit over the ear. Therefore, many people will probably find the Bose more comfortable. This is, of course, a very important thing to consider. I find the earbuds to be very comfortable if I use soft

So yes, I took a leap of faith. And as I sit typing this, in my bubble of total peace and quiet, I can say without a doubt that I don't regret it! Yes they cost a lot, yes it pains my bank balance to think too much about it, but to know I can come home from work and actually enjoy my evening without disturbance is priceless.
To essentials: easy to set up, just pop a AAA battery into the compartment and switch on - a green light comes on so you know they are on, which is helpful, as you are less likely to forget to turn them off and drain the battery. I find these very comfortable to wear, the headband is adjustable, and the phones completely surround and cushion your ears. No I don't think I could sleep in them, but I'm a side sleeper. The carry case they come with is a nice add-on, and they fit inside perfectly; am sure this will come in handy for travel purposes on my upcoming holiday. You can easily detach the lead from the phones, and I often do just wear them on their own if I just want some quiet - at other times I use them to watch films etc on my laptop. Without the noise cancelling switched on, you get some pretty decent noise relief right away, but when the magic switch is pushed - almost total immersion is the best way to describe it! Right now I can hear some very distant traffic noise, but only if I listen hard, and it's not at all intrusive - so it's not a total white-out, I don't worry for example that I won't hear the phone, fire alarm or another emergency. You may have guessed from my review so far that noise-cancelling is my main concern. But in terms of sound quality, these sound good to me (though I admit I'm no expert); certainly no problems, nice and clear.
So, I hope someone else who is looking for relief from a similar situation finds this useful! I can't really compare with other noise cancelling phones out there, I tried some QuietComfort 15's while browsing in Costco recently and they seemed to do a pretty decent job with noise cancelling, but I decided in the end that if I'm forking out this much, I want the latest technology available. Can't speak for battery life or the phones' longevity as I haven't had them long enough yet - will update if I run into any problems.
Oh and like other reviewers have mentioned here, check out amazon.es. I opted for next-day delivery and it still came in about 70 quid cheaper than ordering from the UK store; just make sure you carefully select the right model for your existing home equipment - iOS / Apple or Samsung / Android (the language difference caused me to miss this important step initially, and I had to make a swift cancellation and re-order!)

Disclosure: I have tried all these on an airplane. I am not an audiophile. Noise Cancelation is the most important attribute to me.
The Carrying Case: All four are quite durable and stiff.
1.) Bose QC25- Very small, compact, and just big enough. Does not really have room for anything else. Could fit in a briefcase.
2.) Bose- QC15- This case is bigger than the QC25 (Which could be a good thing. Doesn't feel much bigger, and still has room for ipod, Gameboy, batteries, whatever).
3.) Sennheiser- Square shape, low profile, however not a lot of room for anything else in case.
4.) Audio Technica- Nice big case if you want to carry extra stuff (Nintendo DS, ipod, etc).
5.) Beat case is very elegant and hip, but very wide and skinny. Maybe room for an ipod and that's about it. Caribbeaner Clasp.
Build Quality:
1.) Sennheiser- you can tell this is built VERY well. Strong plastics, good components, thick cord. Top notch. You feel like you are getting something really high quality.
2.) Beats appears to be extremely well made. Heavy duty industrial plastics, metal fasteners. High end box, thick cord, great packaging, solid construction. Only concern of mine is that the battery compartment seems a little fragile.
3.) Bose25 is a step up here from the 15. Detachable cord. A little more substantial feeling. Touches of aluminum on the headphones, and some nicer quality padding. While not as substantial at the Sennheiser, they do feel more luxurious and a little more solidly built than the QC15.
4.) Audio Technica- Nice solid construction, appears durable. Mostly heavy duty plastic.
5.) Bose15- If this had a Sanyo logo on the side, I would not have flinched. How can something $300 be so incredibly cheaply made.
Size:
1.) Bose25- A step up from the Bose15. A little more sleek. Not as dorky looking. Fold flat.
2.) Beats- These are a little bigger than the others, but that are also meant to stand out and be seen. Probably the hippest looking, but a little bold for business users.
3.) Bose15- as far as over the ears go, these are pretty small.
4.) Audio-Technica- mid-sized.
5.) Sennheiser- These are big. No question, but they store flat.
Comfort:
1.) Sennheiser- Very comfortable, will fit almost any size ears. Keep on for hours.
2.) Bose25- A stepup here. More comfortable than QC15, more flex, better padding. Less hot. Could be tight around some larger ears. Can press a little tight after some time, so test them. After a few hours, my ears hurt from the pressing, but some adjustments can be made.
3.) Beats seemed to be a little tight on my head and I didn't see a way to make them less "compressy." I don't think I (personally) would like to wear these all day. Too pinchy for my head. The earphone part is also a little small for me. These became hot and uncomfortable after time for me.
4.) Bose15- Also comfortable. I did not experience "highs" discomfort.
5.) Audio-Technica- Perfectly satisfactory. Larger opening than previous AT model. Gets warm and tight on head on long flights.
Sound:
Disclaimer. This is a tough category, as they all had very different sounds and need to be used personally. The Sennheisers helped me hear parts of songs I had never heard before, but so did the Beats (baselines were much stronger).
1.) Sennheiser- I actually wore these at home too, simply to hear parts of songs I had never heard before. Astounding. My 10yr old music collection sounded totally NEW.
2.) Bose25- A step up from the QC15. Music more evenly balanced. Bass is hard hitting, but not as annoying as in the QC15. Some break-in is required. A more 3D sound than QC15. The QC25 closes the Sennheiser gap much more than the QC15. Be aware, some mp3s might feel a little flat.
2.) I put the Bose25 and Beats in the same category. The Bose seemed more evenly balanced. The Beats sounded great, but were EXTREMELY bass heavy. You will hear complexity of base lines that you never noticed. Drums tracks will sound like drums, bass guitar will be noticed for the first time on songs, but the highs are VERY weak. Pop music will sound very muted, rap and hip hop will pop and you'll feel like you have a Kicker Bass speaker in your car. I can't compare Beats to the others. It's a totally different sound which you will either love or hate.
3.) Audio-Technica- Well balanced, good sound.
4.) Bose15- Great clear sound, but very heavy on the bass. I listen to a lot of rap and pop, so it was mildly annoying. I ultimately had to turn my treble settings up on my ipod to balance the sound.
Features:
1.) Beats- Great packaging. Two cords with different connectors. Nice Case. Cloth. They do a good

Read on to find out if the Bose QC 25's lives up to their lofty expectations.
Design: Conservative and that is OK
Pros:
Refined industrial appearance
No awkward gap between headband and head
Unlimited color options (for an extra $100 on Bose website)
Very wearable outside your home
Cons:
Only two color options for the $300 price range (they usually release another during Holiday time period)
White and Beige version has a blue cord...
MATERIALS: Plastic, fabric and faux leather
Pros:
Light weight for full sized headphones
Tight tolerances
Durable
Folding the ear-cups is not a nerve wracking experience (nice pivot arms)
Adjusting the band to fit your head is not either
No defects or seams of any kinds
Cons:
Plastic is...plastic
Faux Leather is...I think you get it.
COMFORT: One of the best in the business: comfortable for extended sessions
Pros:
Light weight means these headphones won't give you a weighed down feeling
Padding on the top is adequate
Faux leather in the ear-cups is very soft (think QC 15's)
Sits balanced on the head
Padding will cover (normal sized) ears entirely
Cons:
Slight inward pressure from the ear-cups
NOISE CANCELLATION: Best in the business, but a potential problem
Pros:
Drowns out almost all low frequencies
Blocks out most mid frequencies and muffles high frequencies
Very quiet, only a slight hiss
Cons:
****When noise cancelling is turned ON significant amounts of sound leak out. (Mid volumes are enough for others to hear)
Still will not block out voices or other high frequencies very well
Not a huge improvement over the QC 15's
SOUND QUALITY: Two sides to every coin
With noise cancellation ON: The better side
Pros:
Clear instruments and vocals
Bright acoustics that do not get overly harsh
Vocals have nice presence
Stereo separation is dynamic
Punchy bass (see cons)
Lows, Mids and Highs are more balanced than QC 15's
No distortion at top volumes
Cons:
No "low" bass. A heavy punch, but nothing near thumping
Closed back design does not allow "airy" feel - more closed off sound stage
You can get better, more open sound for this price and even less
Very slight slurring in some songs (s's) sound harsh
With NC Off: The other side
Pros:
It plays music
Bass is still nicely present
Sound Leakage is only present at highest volumes unlike when NC is ON
Cons:
Everything else: No clarity, distortion, no details, MUDDY
ADDITIONAL NOTES:
Pros:
Comes with a nice carrying case (hard touch with some "give") (see cons)
One AAA with 35 hours of battery life (see cons)
Inline remote (see cons)
Cons:
Carrying case does not have a solution for the cord (fold up, throw on top and hope it zips)
No built-in battery yet...
Volume controls only work with Apple devices
Ear-cups fold outward so when you are carrying them around your neck they show the R and L rather than sitting flat on your collar
Bose warranty is not very good...One year and you pay for shipping
Made in China
Overall:
Pros:
Comfort
Noise Cancellation
Balanced Audio Quality
---Nice stereo separation
Cons:
Plastic materials
Sound leakage when NC is turned on
Sound quality with NC off
Bass is still not impressive
Very pricey
Conclusion: The Bose QC 25 are a great pair of headphones for those of you wanting noise cancelling capabilities. The sound quality is certainly above average, comfort is excellent and build quality is where it should be. The QC 25's are best for those who listen to acoustic, folk, pop and alternative and will be good enough for most others.
I still have some concerns: Sound leakage, lack of a truly low bass and a lofty $300 price range.
Recommend: To those who are looking for a pair of headphones that you can go outside with that offer excellent noise cancellation and very good audio quality. On the other hand, you can get the consumer friendly looking B&W P7 for an extra $100 without the noise cancellation but more impressive audio. If you do not care about appearance or NC and only about audio quality than your options open up a lot.
If you li

Anyways, results? I think I am keeping my QC 15.
To be specific, here is why:
1) In the noise canceling department, I honestly could not tell a difference between the QC15 and QC25. Maybe some people claim that the QC25's noise cancellation is better than the QC15's (I've read quite a few reviews saying so), but I suspect that that is more of a psychological influence in which the NC on the QC25 is considered better just because the QC25 is a newer model than the QC15. This reminds me of a psychology experiment in which our professor held an opened small bottle with a special aromatic liquid inside, and told us that within a few minutes the whole room would slowly begin to be filled with its very powerful, but attractive aroma... She then asked us to raise our hands as soon as we smelled the aroma. A few minutes later when about two-thirds of the lecture hall had their hands up (about 120 students were there present) she revealed to us that it was just water in there! Anyways, I think you get my point here. Don't get me wrong, there is nothing wrong with the noise cancellation of the QC25...I think it is excellent! I just don't think that it is any better than that of the QC15. Btw, I was one of the students who did NOT raise their hands in the above experiment :-)
2) I am not an audiophile, but I was disappointed with the bass sound clarity of the QC25 compared to the QC15. I played one of my favorite tracks to test both headphones. Granted, I am in to classical music, so the bass for me normally comes in the form of the double basses and cellos. On my QC15, I can actually hear the individual vibrations caused by the sound of the bow hair pulling on the strings (if you have any experience with bowed string instruments, you will know what I mean). Not so with my QC 25. It was just a general generic sound coming from the double bass section... No bow hair vibrations as you would normally hear live inside a concert hall...or from the QC-15.
3) They eliminated the Hi/Lo switch on the QC25, and by default the cable is set permanently to the equivalent of the "Hi" setting of previous QC headphone cables. What does this mean? It means that you will find yourself having to constantly turn down the volume on your audio equipment, unless you don't mind the sound blasting in your ears. I was watching a movie on the in-flight entertainment system, and with my QC15 cable on the "LO" setting, I had an ample range of volume on which to adjust up or down on the aircraft's volume control. However, when I switched over to the QC25, I had no choice but to use the lowest possible notch on the aircraft's volume control....any notch higher and I would go deaf from such loud volume! And that lowest possible volume notch while using the QC 25 was loud enough as it was, but tolerable... I would have preferred to lower the volume further down, which was only possible in the "LO" setting of the QC15. For me at least, this was a BIG minus for the QC25. Btw, the reason I know that the QC25 cable is permanently set to the equivalent of the "Hi" setting on the QC15 cable is because during the in-flight movie, while I was using the QC15, in addition to testing it on the "Lo" setting, I also tested it in the "Hi" setting, and just like with the QC25, I had to use the lowest possible volume notch on the aircraft's volume control without going deaf. Edit: I forgot to mention here that I also tested both headphones on my iPhone, and got the same exact results. TO BOSE, IF YOU ARE READING THIS, BRING BACK THE "HI/LO" SWITCH!
Update 1: I've been reading other reviews complaining that sound "leaks" from the QC25 headphones...and I suspect that this is the very reason for this...considering how the QC25 cable is made to permanently function in the equivalent of the "Hi" setting of previous QC headphones, the QC25 are essentially loud headphones.
Update 2: Someone in my comments pointed out that the Bose manual states you can get lower volume output if you plug the QC25 using the airplane adapter. Since as of writing time (Oct 2, 2014) I alrea

Rather than take a normal route and experience music through the Bose, I thought it might be more interesting to save that for later.
I sat down in front of the game with the remote in hand. Turned on the whole house fan for effect- if you have never experienced one, they nicely simulate an aircraft cabin interior. In addition to the game and the fan, I put an AM radio on a shrill conservative talk show: Bose help me now.
When I slipped on the headphones I noticed at once the lightness and smooth, comfortable fit of the headband and leather earpieces. The seal to the ear was so perfect it seemed was this was truly the first step towards noise reduction. The headband was nearly weightless.
And indeed the room sounds were softer, a little bit muffled, but still invasive and annoying. I switched to another high end over-ear model to compare- it was nice, but not as nice, and at this point dependent on the music to cancel the rest.
Not the Bose. I felt for the tiny switch on the right earcup, pushed it forward. There was a click, a tiny pop and a very slight hiss as the rest of the room faded deeply into white noise nothingness. The change was so dramatic I had to pop the cans off my ears to make sure things were still on. I was amazed.
I would say the nose reduction- not total cancellation is at least 50-70%, and seems to be a dynamic response based on the ambient. Or it's just me, sometimes it did seem like all the room noise was slipping away at the same rate even as the volume increased- up to a point..
I continued to play with the room noise as I grew unexpectedly impressed by the amount of quiet these could generate. I understand the general principle of active noise cancellation, and for what these headphones sell for, I would say the time is here.
And this is without hearing a note of music. May I say, "Well, they're Bose, so what else can I say?"? Probably not much.
Without the NR switched on, they sound on a par with many decent headphone I have used. Maybe not as wide in range, perhaps too thin- but I might have been more than a little suspicious to just try these powered off knowing what they cost, and wondering why. Believe me, I have tested $500 cans that had no extraordinary features except a designer brand and a trendiness that performed little better.
And that they can. When there is no outside noise, a flip of that switch seems to unleash a very much wider range of sound, it punches up the bass without muddying, and keeps the mids and highs clear without any shrillness or hiss. So now tack on that busy airport lounge, airplane cabin, cross-town taxi-ride- anywhere you have a need to step out while standing in- it is hard to believe how well it works.
With battery out or dead battery these still sound great, but the more you get used to the electronic enhancement you will surely miss it that much more if you lose it. I noticed the noise cancellation feature does not automatically time out after a period of inactivity, and while I did not test the battery life to failure, it is rated at 35 hours. Further testing revealed that after being inadvertently switched on at least that long, they seemed to go to sleep. Cycling the switch turned the electronics back on, but with the green light flashing. I imagine this is how they handle the power conservation issue; considering the cost of a long-life AAA these days, it makes good simple sense.
I spent much more time exploring the noise canceling in various realms, it seems that the circuitry will track and compensate for a variety of unwanted ambient conditions.
Still, I felt, "well, has not turning up the volume to drown everything out always been an option?" True, but no longer. This spares both your ears and the people around you. This means that if you overcompensate to allow a quiet passage to be heard, when it shifts back to louder again you need not worry about riding the volume or risking you hearing.
I do not favor using headphones of any kind in public, anywhere, but this certainly does not seem to be a problem for a very large number of individuals. If you are one of them, the Bose QC will be with you at all times. Suddenly the applications are endless and easy to imagine.. .. a hotel room with the party upstairs.. a doctor's waiting room.. social security office..
In fact, last night when it was just me and the heat, I ran the fan and tried the Bose as electronic earplugs. I have no problem with the low rumble it creates, in fact it usually wakes me up when it times out. But they muffled the sound so well it was like being a block away. It grew so quiet I could even hear my mild tinnitus kick in. I was amazed how loud the room

Four things really mattered to me when I upgraded to the QC25: sound quality, noise cancelling, comfort, and the portability. So I'll skip aesthetics and the other features that you can easily read about. And I'll tackle each of those four critical points in this review, naming a winner in each category.
Sound Quality Winner: QC25
You do need to "burn-in" your Bose headphones. Play music through them for about 100 hours and you'll hear a difference—they'll sound much better than they did straight out of the box. After burn-in, indeed, the QC25 has a slightly superior sound to its predecessor. Also, the over-ear headphones have the easy sound-quality advantage on the QC20 earbuds because you get a wider sound stage and harder-hitting bass.
Noise Cancelling Winner: QC15/QC20/QC25 (3-way tie)
There's marketing hype about how the QC25 noise cancelling is superior. Honestly, I can't really tell. I could tell the difference between the QC20 and QC15 because the "StayHear tips" blocked the sound in a different way. But in every-day use, the QC25 noise cancelling is really about the same as that in the QC15—which is to say that it is excellent and industry-leading. Even at low volumes, you can block out most ambient noise and idle chatter: "quiet" indeed.
Comfort: QC15/QC20/QC25 (3-way tie)
The QC25s are just as comfortable as the QC15s: VERY comfortable. This is due to the light weight and light pressure on the ear cups. This is extra beneficial to people with wider skulls. They make Beats Studio/Pro headphones feel like strapping two conch shells to your skull. As a side note, the earbuds in the QC20 are also the most comfortable in-ear pieces that I have used—much more comfortable than they look. All three options live up to the "comfort" portion of their name.
Case/Portability Winner: QC20
The in-ear design of the QC20s makes it the easy winner. You can stuff them into their card-case sized pouch very easily and you can wear them in the office without looking too anti-social—not so, with the over-ear designs. The more-compact case for the QC25 is an upgrade, and folding the headphones is easy. In terms of storage, they did away with the card slot from the QC15 (seriously, that was a waste of space), and dropped the interior zippered pouch as well. In its place, there is a slot to store a single spare battery. I only ever stored one spare AAA battery in there anyway, so the QC25 case storage is sufficient for me. The back also features an elastic compartment like the QC15 case—never used it.
Other considerations:
Hi/Low switch: I honestly have not found the absence of this switch to be a problem. I checked my QC15, and saw that I had set it to "Hi." I hadn't changed it since I bought it and have never had any problems with getting a range of volumes. Similarly, the QC25 work fine for me too.
Ability to listen without battery: They introduced this feature in the QC20. Unless you're desperate, you do NOT want to use the headphones without the active preamp because without active equalization, these sound worse than $2 headphones. Nice-to-have feature, but just be sure to pack a spare battery.
Long-term foam pad wear: About 2 years into my QC15s, I needed to replace the ear cushions because the leatherette was starting to disintegrate. I suspect the same thing may happen to these QC25s. Expect to spend $15 to $30 on this maintenance depending on whether you go OEM or aftermarket.
No aware mode: The QC20 headphones had "aware mode" which was supposed to let you listen to your surroundings. This feature worked, but after a while, I stopped using it and just popped an earbud out as necessary. It isn't particularly missed on the QC25.
Batteries: The fact that they use a single AAA battery is perfect. Eneloops are your best friend. I am grateful that this doesn't have a proprietary battery like the QC20.
Overall Winner: QC25
The QC25 represents the best Bose noise cancelling headphones to date. If you are considering upgrading from the QC15, the improvements are incremental and I would think twice about parting with $300. If you're looking to supplement a set of QC20 earbuds, this is a great buy. If you have no Bose noise cancelling headphones, this is THE clear choice.


While I still find the noise cancelling performance of these headphones outstanding, they are no match for a couple of toddlers who over the course of a 5 hour flight find the accommodations of a 767 confining yet acoustically pleasing for shrieks and screaming.
***Update: 9/5/14
Checking the Bose website, it appears my distress about color clash can be avoided via customization of the headphones at somewhat of a cost premium.***
Eventually, I may talk about something relevant in this review ...or not. Right now, however, I'm trying to decide what might work best to remove salsa stains from the textured white/gray mesh carrying case. I've only had these headphones for a short time and I guarantee you it will not take a forensic team to find my smudged fingerprints. I don't know who the comedian was on Bose's design team but beyond the challenges I will confront in keeping headphones and case clean, I can see where folks with some of the crayon colored iPhone 5c's are going to look like a Mardi Gras float as they walk through an airport. Even with my device's boring black otterbox case shielding me from obvious derision due to the clash with the blue plastic body, for those with the pink or green versions I can only image how special the contrast will be. I know, if I had shelled out the additional bucks for the 5s I would have less to whine about. These headphones may be a slight for users of non-apple devices but the real aesthetic joke just might be on those of us who took the cheaper of the iPhones copout route. Nevertheless, I just might fly somewhere this weekend just to profile as these surprisingly lightweight headphones will not be ignored...on any level.
The real deal here is "what is the audio performance and how effective are these headphones for noise reduction?" and in both cases these headphones excel. Across a moderate range of musical formats (jazz, R&B, classical, rock) there was not a single instance where I was left wanting with respect to tonality. I didn't detect any hint of distortion in any quality track. For those who demand brain rattling bass tones this headset may fall a bit short but I prefer a balance and found them preferable to models from other manufacturers where the low end is emphasized. As far as noise reduction is concerned, I wouldn't suggest walking around in areas where sensitivity to environmental conditions is paramount because you're not going to hear a stray sound with cancellation activated and music playing. For dedicated noise reduction only, external sounds are muted significantly but not eliminated.
The adjustable headband works well for me at the lowest setting and is expandable by an inch and 3/8ths on both sides so even the most inflated heads should be comfortably accommodated. The soft cushioned camel colored ear cups fully envelope the ear. I find them comfortable over extended wearing periods, although measuring only 3 ¾ inches from top to bottom with an internal cup of 2 ¼ inches, the larger eared of the listening world may find them irritating over longer sessions. From my inquiries of others, there doesn't appear to be any hint of bleed issues with the ear cups, either. Foldable into a configuration to fit a conveniently sized storage case, the left headphone features a recessed 3.5mm jack for attachment of the audio cable and is removable when the only objective is noise reduction. The design of the jack seems to reduce the probability of cable damage. A dual output jack for airplane use is also provided.
The right ear cup has a hidden slot for insertion of an AAA battery (rated for 35 hours in the case of an alkaline battery, 28 hours with rechargeable NiMH), and also is the side where the noise reduction on/off switch is located. When powered on, a discreet green lamp is illuminated does not appear so intense as to potentially annoy other passengers. Audio playback is possible in powered down state although there is a distinct difference in sound quality, like you couldn't decide whether to listen to the performer or attempt to suffocate them with a nice thick pillow.
The slightly over 4 ½ ft. cable has controls for audio adjustments with some iDevices and houses the microphone. I had mixed results with an IPod 4th generation and iPhone 5c. I could adjust playback volume and answer incoming calls however I was less successful in getting fast forwarding and track switching to work. I felt voice quality of the microphone phone was very good while listening to myself over a call to another mobile device. The manufacturer notes not all controls will work with all compatible iDevices let alone other smartphones.
So, all things considered, while a revisit to the classic look of the QC15s might have been my preference I'll find a way to keep the Cheetos stains to a minimum and maximize my enjoyment of a superior competitor to the

as far as Comfort, the momentums were dead last. the momentums are very light but I believe it is due to the fact that the ear cups are too small and they fit basically on the ear instead of over the ear as advertised. makes it hard to keep them on for long periods of time. The klipsch status fit comfortably over the ear however they fit too tight on the head, also making it hard to wear for long periods of time. The Audio Technica m50 came in second place. They fit very comfortably, & I can definitely wear them for long periods of time however they are a bit heavy due to the coiled cord. But they get a pass because they are basically DJ headphones so I am told. The Bose QC25 obviously came in first place because they are very light and they fit great on my head. I can keep them on all day and not feel any discomfort.
Style/Design/ durability: the M50's are DJ headphones so once again they get a pass for style and design although they look really good they are a bit bulky for my taste. the Bose come second to last in my opinion. although they look really smooth and clean, like something I would wear with a business suit, but they are too bland for my taste.there is nothing about these headphones that is attractive by looks alone. the status looks really neat and clean just like the QC 25's but the status' have a bit more flair to them. I have the all white pair. They have some glitter effects inside the paint. And they just look like they cost a lot of money to make. The Sennheiser momentum are my favorite design. they may look like they are the cheapest to make however the materials blend really well together. I would say that durability will not be an issue with any of these headphones. They all look very well made and I'm not concerned about them falling apart anytime soon.
sound: all of these headphones sound really great, and there are subtle differences in the sound quality in my opinion.if you like to listen to music with bass, I will go with the M 50. the other three were not bass heavy at all. if i want to watch a movie, the Klipsch status are by far the go to headphones. Second will be the QC25's.overall, the statuses have the best sound. They have so much detail in every pitch. I'm not a music enthusiast nor do I know much about sound but I know what I like to hear and the klipsch status give me what I like. if I hear the word audiophile one more time I am going to scream!!
what sets apart the Bose QC25 is the noise canceling feature. as I stated I am a college student and I use public transportation to get back and forth to school, I also use the school's library when doing homework or using the computers. when I listen to my music on the bus I turn on the noise cancelling feature and it feels as if I am in a quiet room.the library can get pretty noisy as well so I put them on and voilà, the chatter from nearby patrons goes away. I don't have to turn the music up as loud to drown out the outside noise which saves my ears some damage in the long term. for that reason alone is why i use the QC25 far more than the others. furthermore, the case for the QC 25 is the best, compact and stylish. Makes it much easier to throw in my laptop case and take it with me on the go.

Having said that, the QC25s are a simply fantastic pair of noise-cancelling headphones, among the best available, and a great purchase for any regular traveler. They are comfortable, convenient, portable, sound great, and have great noise cancellation.
The packaging and presentation are nice as always with Bose products; an attractive cardboard outer box contains nothing but some minimal foam padding, manuals, and the headphones and cord themselves, packed in their carrying case. You'll find a single AAA battery nestled into a dedicated spot in the carrying case alongside an airline adapter, with the spot for a backup battery making immediately apparent how well thought out the whole product is. Speaking of good design decisions: the choice to run on AAAs is really far more convenient, and a much better idea especially for use on long trips, than the fiddly USB-charging built-in batteries in many competitors. The semi-hard carrying case is flatter and boxier than most, with the headphones folding asymmetrically sideways to fit into it; it takes a bit of getting used to, but an illustration within the case shows you how to pack them (another nice touch).
The headphones themselves are well made and comfortable all around. They have large, cushy over-ear cups, whose padding sits lightly against the head, not the ears, and felt lining inside (as well as over much of the headband). I found I might've liked a bit tighter headband, actually, to keep them in place while moving around. All the materials seem relatively durable. The cord is very high-quality, strong and soft; the inline remote and some of the outer plastic are perhaps the only slightly cheap-feeling portions.
Sound quality is excellent, at least with noise cancelling on. The marketing materials claim they don't need to be switched on to listen to music, but the sound quality switched off is terrible, very quiet and muffled and dead. Even switched on, they need to be driven quite loud -- I had to crank most of the devices I plugged in nearly to maximum volume for satisfying music listening, and still couldn't always get it quite loud enough. Anyhow, I found their sound well-rounded, full, perhaps a little bit bright and trebley but full of detail and midrange while being warm and bassy enough even for hip-hop and dance music. Details pop out of well-mixed recordings, from the piano in a jazz ensemble to the backing vocalists in a loud rock song, almost as well as they do with my favorite in-ear phones (Ultimate Ears). There's a nice isolated feeling that comes with the noise cancelling, as well. These headphones simply sound great, just as headphones.
And the noise cancelling is unbelievably effective, too. I'd heard that many judged Bose's headphones better at quieting ambient noise than other noise-cancelling headphones, but the difference is really dramatic. I compared these directly to Creative Aurvana Platinum, a similarly priced noise-cancelling set, by switching on a loud fan in a small room, and found the Bose noise-cancellation removed far, far more of the ambient mechanical noise and hum; switching the Bose on feels like entering a library, not like muffling a noise. I'd certainly pack these over the Creatives when travelling!
All in all, this is just a great set of headphones for frequent travellers. Everything about them is first-rate: the sound, the convenience, and the noise cancellation. Recommended.


For those who aren't familiar with noise cancelling headphones, simply put, the headphone emits and uses an inaudible sound frequency that `cancels' ambient noise, some of that noise you wouldn't really know that was there. The best test is to wear the headphones, switched on, with no music playing, and you'll immediately notice how quiet the world becomes......! So, by filtering away those unwanted sounds, along with engine noises, the sound of the wind, even low volume talking, the headphones get your total listening attention and the difference is tangible; you're in a wonderful world of audio purity.
The headphones arrive in a good quality presentation box and are already collapsed down inside the compact carry case - which also houses the in-flight adapter and a slot to store a spare AAA battery. They feel well constructed, the hinge mechanism is smooth and they're very easy to fold flat for storage in their case.The under side of the head band is padded, and has a good extension range making it suitable for all head sizes.The headphones themselves are full cup and completely enclose the whole of the ear within the cup (as opposed to just resting on the surface of the ear).
I tested the QC25's on a Samsung S4, using the PowerAmp app, and also on an iPad. Due to EU bureaucracy insisting mobile phones be fitted with a volume limit I feel the headphones can't be given a proper test due to the volume limit on these devices being capped to a comparatively low level. The iPad doesn't seem to suffer this restriction and is able to deliver more `oomph...'
Tracks sampled (all at 320kps) included George Benson (Inspiration album), Gloria Estefan, Guns 'N' Roses, Paul Young, Gypsy Kings, Sade, Bruno Mars and Rizzle Kicks.
Listening for the first time is a real eye opener (or in this case an ear opener)..
You genuinely do hear pretty much everything in new light. George Benson's vocals on the track Mona Lisa were stunningly smooth, you could feel the strings of the guitar being plucked..... The orchestral arrangement was brought to life, each instrument seemed to have its own space within the headphone.....
The cable incorporates an inline remote including a microphone, and it worked fine on my Samsung S4, although I was unable to adjust the volume - a feature that worked fine on both iPhone and iPad. If you're using an iPhone then using the inline remote you'll be able to answer or reject calls, adjust the volume up or down, skip track, previous track and voice control.
Pro's -
Stunning sound. I could go on about great bass, mid-range, vocals being clear, etc but the best testament I can make is to say just hear them and you'll be converted.
Noise cancelling abilities - possibly the best and most effective I've ever heard. My son was speaking to me from around 6ft away, in a normal voice, and I'd say the headphone removed about 80% of the volume from what you would normally hear.
Works from a normal AAA battery, so no need to carry a charger (as I did with the QC3's).
Work as normal (none noise reduction) headphones when you have no battery (the QC3's didn't).
Very, very comfortable due to their light weight construction.
Con's -
Sound leakage. At higher volumes the QC25's aren't exactly the quietest things to be sat next to, but for normal volume listening they're acceptable. If, like me you enjoy some music at a louder volume then I'd advise listening in private.
There's no auto-off, so remember to manually turn off the headphones when you've finished using them or you'll end up with a flat battery.
I was, and still am blown away by my 8 year old QC3's, but in the QC25's Bose have again heightened their standards and produced a piece of technology you'll cherish, be proud to own, be regretful to let others borrow, but most importantly in a headphone, provide an unsurpassed audio experience.
I really cannot praise them highly enough.

First impressions are that the QC 25s are very, very similar. The earpieces are much the same, as is the battery compartment. The QC 25s look as though they have had a slight engineering upgrade where the cups pivot on the headband: there are now visible allen screws. Some users (not me) identified this as a concern in earlier models, so I'm happy to accept this as an improvement.
The headphones now take a standard cable: any cable with a standard 3.5mm 3-pole (for microphone) or 2-pole jack will work, meaning that you do not need to buy a proprietary cable if (as does happen) your cable gets damaged. It's a "swings & roundabouts" improvement though because the new cable does not carry the attenuator switch for aircraft and it does not fit quite as smoothly as the old cable. It's nice, however, to see Bose voluntarily giving up the opportunity to chisel in the aftermarket.
Other minor changes include a smaller on/off switch and a different padding for the headband: you may prefer new over old, or vice versa but these are trivial changes. The external microphones on the ear cups are no longer a feature; they are simple holes, which means I suppose that they are protected from damage, but I suspect that the real reason for the change was to cut manufacturing costs. One clear step forward, albeit completely unimportant, is that the ear cups now have the left and right printed in large letters on the fabric lining. Simple, but a nice touch.
The big difference - the one that the Bose shops point out to you when you ask how the QC 25s differ from the QC 15s - comes when you turn off the noise cancellation and the music keeps on playing. Yes (a feature much requested in reviews of the earlier model) the QC25s still play music with no power being drawn, so you can now listen to your Bose headphones once the battery has run out. Now, I've never run out of battery on my QC15s and never saw why you would: unless you fail to put a spare battery in the case and fail to notice the flashing battery light and go on a journey of more than about six hours. (One AAA battery lasts a long, long time on these 'phones.) Still, the ability to listen to music without noise cancellation does have a theoretical value ... until you realise that the QC 25s just don't sound as good with no battery power. With power they sound louder and airier. Cut the power and they sound muffled, dull and lifeless. So the USP of the QC 25s really doesn't amount to very much.
Other changes? Well, the QC25s fold asymmetrically, so that the cups can be housed in a slightly smaller case. The advantage amounts to maybe two inches at the widest part of the curved QC 15 case, which is not very much, but packing space is valuable and this may be a consideration for some buyers. I find the QC 25s clumsy to fold, but perhaps it's just because I'm not used to them. The QC25 case does not hold the ear cups as securely, but probably still securely enough, and it has a nifty holder for a spare battery and in-flight adaptor, which is easier to use but maybe less flexible than the old zip pocket.
I haven't tested battery life or directly compared sound quality & attenuation but these are so like the QC 15s that I'm going to go out on a limb and say that any improvement is slight. That means that they are still the market leading noise cancelling headphones and should be a strong recommendation to anyone trying to listen to music in a noisy environment.
Overall, then, I can't see any reason for an upgrade to anyone with working QC 15s. If you can get remaining QC 15s at a bargain price, I'd say go for the deal, but if you can only buy the QC 25s, don't worry, they're really very good.


Cons: Failed after only 2 months (possible loose connection in right ear). I contacted Bose and the sent out a brand new pair for replacement (awesome). Took around 10 days to get the replacement. Two months from then, the second pair failed (left ear intermittently working). Contacted Bose on Oct 20th and they authorized a service replacement this time around. Today is Nov 2nd, and the new pair hasn't shipped, I called Bose to verify everything is alright and I'm informed that everything is good, they received the defective pair, but there is no stock available and it won't be until around Jan 6 that shipments go out. Two and a half months to turn around a service call is unacceptable, and these headphones seem to lack durability.
My use of the headphones is approximately 1-3hours per day, and they are always stored in the case otherwise. I gave my dad my old QC15's and they still work (after 4 years). My suspicion is that the new way that the headphones fold causes excessive wear and tear, or possibly the soldering during manufacturing has poor quality control. Either way, this experience may deter me from purchasing another pair down the line, given the lack of support and construction quality that only holds up for 2 months at a time. Here's hoping my 6 year old ear buds can hold out until I get the replacements.
Update 3 Nov: Called Bose again per the comment. The representative I spoke with this time told me that there is no date he can give me in terms of when the replacements ship, but they are on backorder. I asked if it is possible to go to the store and pick up a pair to use and return within the 30-day "trial" period and he told me that I would have to call in to Bose to do an RMA, and that Bose will not accept open package returns. So as it stands, I have paid $300 for about 4 months use of headphones, I have no idea when I will receive the replacements, and there is nothing at this point that instills confidence in me that the "new" headphones will even work longer than 2 months. I will update again when I receive the replacement pair.
Update 11 Nov: I received my replacement set. Seems to be brand new instead of the refurbished set that customer service told me I would get. I am upgrading from 1 to 2 stars because this is well ahead of the January estimate I was given initially. At this point though, I went ahead and purchased a set of AudioTechnica M50x's and they surpass the QC25's on every level, except noise cancelling. I'm sticking with those since they are only half the price, I don't have to worry about batteries, and sound much better overall. My new plight is that I can't resell the brand new set I just received from Bose back on Amazon because that is a right reserved by only a few authorized retailers. This is something to keep in mind for anyone looking to purchase in terms of later resale value as you'll have to turn to Craigslist/eBay/etc. or settle for the (current as of 13 Nov 2015) $180 Amazon credit and take the $120 hit, assuming they are in perfect condition.

My replacement Beats Solo 2s arrived just before a trip to my parents' house. My 78-year-old mother has become hard of hearing, so she plays her TV at a ridiculously high volume that is almost unbearable to listen to with (relatively) young ears. I took this as an opportunity to compare the noise cancellation properties of the Bose 25s to the Beats Solo 2s. The results were surprising to say the least, especially given the fact that the Bose headphones have a special noise cancellation switch while the Beats do not. In this environment, I tried both headphones on my FiiO X1 DAP with the same lossless songs on the same setting-- Given that the battery-powered Bose headphones have a dedicated noise-reduction function, I would've expected them to cancel out all surrounding noise. They did not. Was it egregiously bad? Not by a long shot-- I would assume that general white noise would be almost undetectable while using the Bose headphones, but I could clearly hear voices from a loud TV while using them. Not the point where it ruined my listening experience, but outside noise was definitely audible. When I switched to the Beats, it was almost like night and day-- I couldn't hear the TV at all. The Beats have a snugger fit and tighter leather on the ear pads that completely blocked out the sound of the television. I was shocked to say the least!
Does this make the Bose cans a bad set of headphones? Absolutely not! Compared to most, they sound pretty great and do an adequate job of blocking noise, but the Beats honestly sound better, and this is coming from someone who genuinely wants and expects the Bose headphones to perform at a higher level. For me, the Beats just have a richer sound, while the Bose 25s have sort of a shrill treble going on. I have also owned the older Beats Solo HDs, which had a comparatively muddy bass resonance, but the Solo 2s really sound pretty fantastic, even when compared to the Bose 25s, which are $100 more expensive and should (on paper) sound a whole lot better. On top of that, the Beats just feel more luxurious and comfortable (for me anyway). The Bose 25s have this plush cloth upper padding that I can only imagine as being a repository for head sweat, while the beats have a luxe leather upper that feels more high-end and doesn't seem like it would absorb a bunch of strange bacteria (sorry, but it's true).
I guess that if you hate the overall trendiness of the Beats brand and want to overpay for some headphones that don't look or sound quite as good, pull the trigger on these 25s, but I don't really see any reason to otherwise. Don't get me wrong, they are on the higher-end of sound quality to be sure, but I really don't think they're worth it compared to the Beats Solo 2s, which by all estimation should not sound quite as good as they do.
