Bose QC20 QC25 noise cancelling headphone review (5)

REVIEW: Bose QC20 and QC25 noise-cancelling headphones

LINK: QC20  |  Price: $249/€200/£249  |  Manual: PDF
LINK: QC25  |  Price: $299/€269/£269  |  Manual: PDF


Being who we are and doing what we do means we spend a majority of our lives not just playing music, but primarily consuming it. After all, aside from listening like everybody else does, we also spend a lot of time figuring out what deserves to be played out and what doesn’t, followed by the routine grind of setting beat grids and cue points – and creating playlists, which we often do en route to a gig.

I think I’m not just speaking for myself here when I say that we also listen at louder volumes than the average person. We’re used to it so much that we often aren’t even aware of how hard we blast our ears on a regular basis. I’ve had a couple of situations where people I handed my headphones to visibly recoiled and asked me to turn it down. A Sennheiser HD25 is still pretty damn loud when hooked up to an iPod – but sometimes that’s the only way to suppress outside noise.

There are many reasons why DJ cans aren’t usually the best choice for regular, on-the-go listening. In most cases, it’s the cables and the overall bulkiness. Don’t get me wrong – I love my HD25 and my NS900. But wearing either of these now, in summertime? That’s a sweaty mess, so: no thanks. On-ear and over-ear headphones are a fall/winter thing for me.

For that reason, I’ve gone with in-ear models for a very long time. They’re lightweight and deliver pretty solid quality, unless you go for the bottom-shelf models which all consistently suck. The last pair I used was the Sennheiser CX-400II, and it survived a solid 7 years before the cable finally gave out. The thing with these is, they require a lot of maintenance – if you think about it, sticking a rubber cone into your ear canal isn’t exactly hygienic, especially if your method of storage is a tangled mess in your pocket. We’ve all been there, I’m no saint myself. But it’s still kind of disgusting. So I’ve spent a lot of time disinfecting the rubber parts, just like I do with my Elacin filters.

With the Sennheiser CX-400II dead and (sadly) not in production anymore, I started looking for a quality replacement. Several friends mentioned that I should try the noise-cancelling Bose models – so I did, picking up both the circumaural QC25 as well as the QC20 earbuds. After a few weeks of daily use, I decided to write about them.
REVIEW: Bose QC20 and QC25 noise-cancelling headphones 3


Every time any member of our team reviews headphones, we start with the same opening line: describing how a pair of monitors sounds is impossible, as all we can give you is our individual impression – for that reason, you should always double-check yourself if you have the chance.

In that regard, what I liked about the Bose salon I went to is that they let me test the QC20 earbuds, as they had spare silicone caps ready just for that purpose. In most cases, when buying in-ears, you’re playing a game of chance based on the specs on the package (which Bose curiously doesn’t provide) and maybe a review in a consumer mag – running the risk of dishing out on a pair you simply may not like, and not being able to return it for obvious reasons of hygiene.

Given the price tag on these, I’d say above-average consumer experience can be expected, but I was still pleasantly surprised. Of course, with the over-ear QC25, testing was no problem.
REVIEW: Bose QC20 and QC25 noise-cancelling headphones 4


The QC20 comes with three sizes of silicone plugs which should make a nice fit for most people. They’re quite unobtrusive, despite being held in place very well. As earbuds, they also don’t fully enter your ear canal – they just sort of sit on top of it, which is (literally) a clean solution. The QC20 has an integrated battery for the noise cancelling system attached to the cable (with a microUSB charging port).

With the QC25, the system is embedded in the ear cups, and powered by a single AAA battery – also included in the box, along with an airline adapter. Both the QC20 and the QC25 come with stylish and sturdy carrying cases. One small detail I really like is that both 3.5mm plugs are angled. Why this hasn’t become an industry standard yet it a complete mystery to me. Both cables also come with remotes and microphones for controlling music playback and answering calls – something I’ll come back to later.


Bose is a high-end consumer brand, so the quality of these products is no joke. In the simplest of words, you get impressive overall clarity without the over-exposed low-end often found even with expensive headphones (*cough* Beats). I like both the QC20 and the QC25 in that regard, and there isn’t a lot I can say except that they’re each well worth a try.

Of course, you have to keep in mind that these are consumer products – not professional monitors. They’re made for casual listening, not perfect linear reproduction – but within that classification, they sound really pleasant to my ears. However, what I’d like to focus the review on is the active noise cancelling system, and its effect on the overall listening experience.

As I’ve said before, we DJs often listen to music at too high a volume. Call it whatever you want – force of habit, occupational disease, I don’t know. But I’m guilty of that, and I’m pretty sure a lot of you guys are as well. No matter how well your headphones isolate – when you’re out and about, some noise is going to get through, and you’re going to crank the volume to drown it out and fully immerse yourself in the music… it turns out there are healthier ways of going about that.


By now, noise-cancelling headphones aren’t anything spectacularly new. However, Bose is the company that originated the idea – as far back as the late 1970s, in fact. How does this system work? The principle is simple to grasp. The headphones are equipped with microphones which capture ambient noise, and immediately play it back phase-inverted – thus eliminating most of the outside world you’d hear very effectively. This is similar to how you can get a useable acapella out of a track if you have both the original and the instrumental – just layer them over another with maximum precision, phase-flip one of them, and presto – there’s your vocal track with some barely audible artefacts.

The noise-cancelling effect is best noticeable when flying. Nobody likes the constant droning of the ambient engine hum, and those headphones kill it off almost completely. Even with no music playing, you can just enjoy some relative peace & quiet. To be honest, when I activated the noise-cancelling system for the first time, I just stood there for a while with my jaw dropped – it’s quite amazing. On the QC20, one charge will last you around 12 hours – that’s a whole flight from Paris to LA. With the QC25, it depends entirely on the AAA battery you use, but you can always pack spares.

The good thing about such a powerful reduction of ambient noise is that you can follow suit by reducing your playback volume significantly, sacrificing nothing in terms of immersive listening pleasure. This is what really appeals to me – after all, our ears are an important asset to say the least, so we should take care and protect them. This is one very effective method of doing so, and I can only encourage you to try it – it’s an eye (or should I say ear? #DadPuns) opener. One thing that needs to be mentioned is that disabling the noise cancelling system has a tremendous negative impact on sound quality – but they’re obviously not intended to be used without it on.
REVIEW: Bose QC20 and QC25 noise-cancelling headphones 5


Aside from the form factor, there are several minor differences between the QC20 and the QC25. My impression is that the low end on the QC20 has a little more presence, although that may be a very individual perception based on the shape of my ears – but the QC25, being circumaural, isolates a noticeable bit better than the QC20. However, the QC20 has one useful feature missing from the QC25: it has an additional button on the remote that reduces the intensity of noise reduction slightly, so you can still hear your surroundings. This “aware mode” is useful for many reasons – not wanting to miss an announcement at an airport, talking to someone without taking out the earbuds, or added safety when you do something dangerously stupid like riding a bike while listening to music (seriously: don’t).

The main difference between the QC20 and QC25 is that the QC20 is pretty much an integrated all-in-one device – all you can swap out, if necessary, are the silicone earbuds. With the QC25, the cable is detachable and can be swapped out easily – although I don’t like that the ear cup port isn’t a standard 3.5mm one. If you want a spare, it’s going to have to be a Bose spare.REVIEW: Bose QC20 and QC25 noise-cancelling headphones 6


As I said before, both units come with remotes attached to the cables – and those are specific to your mobile OS. So when buying, you’ll have to choose between iOS and Android. If your cable doesn’t match your device, you’re still going to be able to start and pause playback, as well as answer calls – it’s the volume/playlist controls that don’t work.

Of course, it’s not Bose’s fault that there are different standards for these systems (which is just stupid) – but I can’t help but wonder if it would be that much trouble to simply include cables with remotes for both systems in the package, like NOCS did with the NS900. It is a premium product, after all. With the QC20 being a one-piece unit, it’s not that easy – but I imagine a dip switch on the noise cancelling box could take care of that. Or, you know, use the microUSB port not just for charging, but also to change the setting from your computer. Seems more complicated than a dip switch, but it’s a possibility.


One would assume it’s not that far-fetched an idea – noise cancellation could protect you from blaring monitors to some degree, for sure. But I wouldn’t DJ with earbuds except in an emergency, so the QC20 is a clear “no” right off the bat.

The QC25 on the other hand could be used like that, but there is a difference between a consumer product – however high-end – and a pro one. While all Bose gear I’ve seen so far is definitely very well-built, it also definitely wasn’t designed with stage performers in mind – I don’t think they’d survive a DJ’s level of abuse for very long. I guess if you’re playing a calm background music type set, they’ll do as a backup solution, but that’s it.

Where they excel beyond any a doubt is when you’re sitting on a plane or train and working on playlists – listening at a reasonably low volume means your ears don’t get too tired, and that’s a big deal when you’ve got a long night ahead of you. That being said, it could be interesting to see Bose come out with a sturdier pro model – why not? If you look at their growing line-up of PA systems, we can’t rule out they’ll enter the DJ market at some point in the future.
REVIEW: Bose QC20 and QC25 noise-cancelling headphones 7


To sum up everything I’ve said – both the QC20 and QC25 are great for everyday listening, and the noise cancellation makes it easy to maintain healthy volume levels while doing so. If you like to pump club material at peak volume, however, they’re probably not for you. They’re also not cheap – but few good things ever are. I can’t give you a clear preference between the earbuds and headphones, because I like both. In any case, if you’re looking for a new set of pure listening cans, you should check them both out.

Although pricey, the Bose QC20 and QC25 deliver solid results overall. The noise cancelling functionality is great and has made me listen to music at less damaging volume levels. I think I'll stick with them for quite some time.
Sound quality (subjective!)
Noise cancelling
Features & accessories
Value for money
Noise cancelling with impressive results
Clear sound without an over-emphasized low end
Noise-cancelling "aware mode" (QC20 earbuds only)
iOS / Android compatibility nonsense
QC20 could be more "modular"