Sennheiser Accentum Plus review: One-minute review

The Sennheiser Accentum Plus was created by taking everything that was enjoyable about the more entry-level Accentum wireless over-ear headphones and adding touch-controls, aptX Adaptive capability and (perhaps most significantly) a carry-case. They prove that sometimes a gap in the market is so small that you don’t even notice it, but Sennheiser certainly did.

There’s plenty to like here, from the neat and tidy design and excellent standard of fit and finish to the robustly informative sound the headphones make. Active noise cancellation is decent, control options are very nicely implemented, and battery life is approaching ‘epic’.

Nothing’s perfect, though, and the wider-headed among us are likely to find the Accentum Plus a non-starter – the fit is about as snug as these things ever get. And the richly bassy sonic signature won’t suit everyone either – although it can be mitigated, just a little, using the five-band EQ embedded in the control app.

Fundamentally, the Accentum Plus are the same as the Accentum – but more so. They also come with a carry-case, something that a lot of the best wireless headphones offer as standard.  

Sennheiser Accentum Plus review: Price and release date

• Released on February, 22, 2024
• Price: $229 / £199 / AU$399

The Sennheiser Accentum Plus went on sale on 20th February this year for $229 in the US and £199 in the UK. Meanwhile in Australia, they’ll set you back AU$399.

At this money they sit nicely between the more affordable Sennheiser Accentum and the pricier Sennheiser Momentum 4 – but, of course, there are more brands than just Sennheiser ready to part you from this sort of money for a pair of wireless over-ear noise-cancellers…

Sennheiser Accentum Plus review: Specs

Sennheiser Accentum Plus review: Features

• Bluetooth 5.2 with aptX Adaptive compatibility 
• 50 hours of battery life 
• 37mm full-range dynamic drivers

Obviously it’s a bit of a theme of this review – but in quite a few ways, the Accentum Plus are very, very similar to their more affordable Sennheiser Accentum stablemates.

Certainly there’s nothing broken about the 50-hour battery life and ‘ten minutes charge equals five hours playback time” of the original Accentum, and the Plus hasn’t bothered to fix it. These are both very competitive numbers, after all. And the Plus also utilise the same 37mm full-range dynamic drivers in order to do the audio business, which, again, seems only sensible.

The changes that have been made all seem like upgrades, though. Bluetooth 5.2 wireless connectivity with aptX Adaptive codec compatibility is very promising where sound quality is concerned, and the appearance of a 3.5mm socket on the right earcup means hard-wired listening is available this way as well as through the USB-C socket positioned alongside it. 

The right earcup also has a single physical control, which covers ‘power on/off’ and Bluetooth pairing. Otherwise, control is available either via the capacitive area of the right earcup (‘play/pause’, ‘volume up/down’, ‘skip forwards/backwards’ and ‘answer/end/reject call’ are all available) or the exemplary ‘Smart Control’ app that’s free for iOS and Android. 

The app features a five-band adjuster, with a number of presets and the facility to store one user-defined setting. The wind noise reduction feature of the newly adaptive active noise-cancellation system can be switched on or off. The multi-point wireless connectivity can be managed from here, and it’s also where you can check for firmware updates, adjust the volume of your own voice that’s audible during calls, and rearrange the various ‘tiles’ that control the different app functions to best suit your purposes. And if you fancy registering with Sennheiser and forking over some personal info, you can use the app’s ‘sound check’ and ‘sound zones’ features to tailor the sound to specific circumstances and environments – and switch between them automatically. 

Otherwise, the most obvious upgrade the Plus enjoy over the standard Accentum is their carry-case. It’s soft but protective, has handy storage for your cables, and generally helps no end in keeping the finish of your headphones nice and tidy. 

Features score: 5 / 5 

Sennheiser Accentum Plus review: Design

• Clean, basically anonymous looks
• Fine standard of build and finish 
• Quite a snug, narrow fit

‘Less is more’, so they say, and there’s even less here in terms of design than there is of the more affordable Sennheiser Accentum. Because most of the interface is now touch controls, there’s just one physical control button here – it’s on the edge of the right earcup.

Otherwise, the Accentum Plus are basically featureless – whether or not that’s a good thing will depend on your feelings regarding ‘discretion’ where design is concerned. At a glance, the only thing that separates them from their Accentum sibling is the silver, rather than matte black, ‘Sennheiser’ logo at each end of the headband.

So you get a clean, minimal look and a quality of build and finish that’s well up to the established Sennheiser standard. The articulation in the yokes allow the headphones to fold flat, and there’s enough articulation to allow the to fit snugly over even the more eccentrically shaped ears and heads that might wish to wear them. The concealed headband adjustment works smoothly, the pleather covering the memory foam-filled earpads is comfortable – and it doesn’t get too hot too quickly, unlike some alternative designs.

Really, the only conceivable shortcoming where the design of the Accentum Plus is concerned is the relative narrowness of the fit. I know I spend a lot of time complaining about the massive, head-swamping nature of a lot of over-ear headphones – but it’s possible to go too far the other way. These Sennheiser are a snug fit, and it’s perfectly possible that the larger-headed among us might find them quite tight.  

Design score: 4.5 / 5

Sennheiser Accentum Plus review: Sound quality

• Weighty, punchy sound
• Dynamic up to a point
• Good noise-cancellation

Obviously there’s more to the sound a pair of headphones makes than the physical characteristics of the drivers that are delivering it. But nevertheless it’s notable that despite being so closely related to the more affordable Accentum model in terms of specification, these Accentum Plus differ in terms of sonic balance. Not dramatically, but noticeably nevertheless. 

With a 44.1kHz file of Cranes in the Sky by Solange playing via Qobuz, the Accentum Plus are an assertive, big-boned listen with impressively solid, nicely controlled low-frequency presence. The bass hits hard here, but with the kind of straight-edged precision that allows the rhythm proper expression and keeps momentum high. That the overall frequency balance is skewed towards the bottom end is undeniable, but there are any number of listeners for whom this will be just the ticket.

And besides, it’s not as if this emphasis puts undue pressure on the midrange. Voices enjoy more than enough room in which to express themselves, and the Accentum Plus retain and reveal plenty of fine detail regarding tone, texture, technique and all the rest of it. The soundstage they create is spacious and convincing where layout is concerned, too, and while the midrange in general and vocalists in particular are hundred towards the front they never sound estranged or separated. The Sennheiser are adept of unifying a recording, no matter how complex, into a coherent and convincing whole – no element of it is left behind.

At the top of the frequency range there’s a polite level of attack – it’s not enough to let treble response get out of hand, even at volume (good) but it’s not quite sufficient to claim the Accentum Plus are giving you the complete high-frequency picture (not quite so good). 

Dynamics – especially the big dynamic shifts in volume and intensity apparent in a TIDAL stream of James Brown’s Give It Up or Turnit a Loose, for example – are given a reasonable amount of emphasis. The Sennheiser Accentum Plus either aren’t deep-breathing enough or aren’t impolite enough to go to town on big dynamic shifts, but they’re certainly more than alluded to.

The always-on active noise cancellation proves just as effective here as in the original Accentum. Which means that almost all external distractions are dealt with confidently, and without any disruption to the sound you’re enjoying. Other headphones (mostly those that say ‘Bose’ on them somewhere) can do a more complete job, but it seems unlikely anyone will reject the Accentum Plus on the basis of their ANC.  

Sound quality score: 4.5 / 5

Sennheiser Accentum Plus review: Value

• Good build quality and standard finish
• Very descent specification 
• Slightly colored audio performance

It should go without saying by now that you could do a lot worse than decide on a pair of Sennheiser Accentum Plus. The company’s reputation for sterling build quality and finish wasn’t attained by accident, the headphones are very competitively specified at this price. 

The Accentum Plus also have a particularly attention-grabbing battery life and the control app is one of the more useful around. Those who enjoy the balance of the sound will be pleased, too, although in absolute terms it’s not as neutral as some listeners might prefer.

Value score: 4.5 / 5

Should I buy the Sennheiser Accentum Plus?

Buy them if…

Don’t buy them if…

Sennheiser Accentum Plus review: Also consider

How I tested Sennheiser Accentum Plus

• At home and in transit
• Wired and wireless
• With iOS and Android devices

My custody of the Sennheiser Accentum Plus coincided with a very disrupted flight to Germany – and so as well as using them at my desk, I was able to test them while in the back of taxis, on trains and on aeroplanes. 

Used them with Apple and Samsung smartphones ares sources, as well as an Apple laptop, and I used them connected both wirelessly and using their analogue connection. And naturally, I listened to a lot of different styles of music, derived from lots of different sizes of digital audio files. 

• First reviewed in February 2024

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Bose QuietComfort Ultra Headphones: Two-minute review

The Bose QuietComfort Ultra Headphones are my favorite cans released in the past year, and are an absolutely thrilling listen that also set a new standard when it comes to active noise cancellation. See, maybe I didn't even need two minutes to help you make your decision about them.

Of course, you've probably already noticed that the Bose QuietComfort Ultra Headphones achieve this by being more expensive than most of the best noise-cancelling headphones, so that complicates things – though I think they more than earn this price tag.

Things are also complicated by their short battery life, which is really noticeable compared to the 30 hours minimum we expect from the best wireless headphones these days. 24 hours doesn't sound terrible, but the difference has really jumped out to me compared to Sony headphones with 30 hours of battery.

It's also a bit of a shame they don't match some of the other more elite options by including USB-C audio support or next-gen Bluetooth (at the time of writing), though they do have aptX for higher-quality wireless streaming.

But that doesn't matter. It's only the battery life that's pulled them down from a full five-star rating, because they sound so full, and exciting, and rich – while simultaneously clamping down on outside sound. When you throw in the bonus of effective spatial audio modes among other useful smart features, it feels like a package that's well worth the price.

They've replaced the AirPods Max as my high-end headphones of choice, though if you want something that offers a lot of the same features as these for a lower price (and with a 60-hour battery life), look to the Sennheiser Momentum 4 Wireless. But if you want the ultimate balance of sound quality and noise cancellation, pay for these.

Bose QuietComfort Ultra Headphones review: Price & release date

• $429 / £449 / AU$649
• Released in early October 2023
• Priced higher than Sony and Sennheiser's best

The QuietComfort Ultra Headphones are the most expensive option in Bose's range, adding a significant premium over the $349 / £350 / AU$549 for the non-Ultra Bose QuietComfort Headphones released at roughly the same time – and which are already available for a significant discount compared to that MSRP.

The price pulls them more into line with the AirPods Max or Bang & Olufsen BeoPlay HX, and a clear level beyond the likes of the Sony WH-1000XM5, which are obviously a major competitor.

However, I should note that in the UK, the price has consistently been £399 since November, and in Australia we've seen them as low for as low as AU$550 outside of sales season, so that now seems to be the standard kind of price in those countries, which helps.

Bose QuietComfort Ultra Headphones review: Specs

Bose QuietComfort Ultra Headphones review: Features

• Immersive Audio creates spatial sound from any source
• Bose Music app provides lots of control option
• Great connectivity options overall, including multi-point Bluetooth

The Bose QuietComfort Ultra Headphones are the most feature-packed cans from Bose yet, bringing two of the hottest bits of tech in headphones at the moment: multi-point Bluetooth and spatial audio.

Multi-point Bluetooth isn't a surprise given how many of the best wireless headphones feature this ability to connect to two devices simultaneously and switch seamless between them, but it's a first for Bose, and it's something we consider a must-have for premium headphones these days (it's notable and frustrating that the cheaper Bose QuietComfort Headphones lack this). You may have to turn this on in the Bose Music app, in the Source screen.

Spatial audio is handled by Bose's own special sauce, and is called Immersive Audio. Much like on AirPods Max, you can turn it off, you can set it so that sound is coming from a bubble around you that moves with your head, or you can have it so that the orientation of sound is locked and when you turn your head it's like you're doing so in a room full of speakers. If you'll use it, we recommend the first Immersive option for music, and the second for movies, since the latter is more like a home theater setup.

Bose also adds tech called CustomTune here, which adapts to both the shape of your ears as well as the environment to make sure you're always hearing the sound accurately, in theory.

And speaking of adjusting to the environment, there's active noise cancellation that's Bose's most advanced so far, and it's pleasingly customizable. It comes with Quiet Mode (normal noise cancelling), Aware Mode (that lets in outside sounds) and Immersion Mode (which puts ANC on full and activates Spatial Audio). But you can also create your own modes – go to the Modes screen in the Bose Music app and tap the + to do this. You can choose a use-case, and then adjust the noise cancellation level in 10 increments, choose the Wind Block feature to reduce wind noise (which also turns ANC to full if you activate it), and choose whether to active Immersive Audio or not, and if so with what kind of head tracking. When you've made custom modes, you can switch between them using a button on the headphones, so it's easy to move from your custom commute mode with full ANC and no Immersive Audio to your office mode with 60% ANC power and Immersive turned on.

Elsewhere in the app, you can adjust a three-band EQ, disconnect from paired devices in the Source screen, and decide a use for the secret Shortcut button on the headphones. There's a touch strip on the right earcup for adjusting volume, and if you turn Shortcut on, pressing and holding this will act as a third button. You can use it to switch the type of Immersive Audio, activate a voice assistant, tell you the battery level, or use it to activate Spotify and resume where you left of, or switch straight to your Discover station. I hope Bose will add more options in the future, but these are a good start.

In terms of wireless connectivity, you've got Bluetooth 5.3 – with support for SBC and AAC codecs, though not Bluetooth LE Audio and the LC3 codec yet, though Bose says it will come at some point – and Snapdragon Sound. This is a form of aptX Adaptive that works with phones with Snapdragon Sound in, but not with most aptX devices, which is frustrating. But if you've got the right kind of phone, at least it's there for you. Everyone else will have to hope for higher-quality streaming from LE Audio in the future.

You've got a 2.5mm jack for a wired connection, and it comes with a 2.5mm-to-3.5mm cable in the box (along with a nice protective case). There's also a USB-C connection, but unlike the Sennheiser Momentum 4 Wireless or Shure Aonic 50 Gen 2, this can't be used for wired Hi-Res Audio from a phone or laptop – it's just for charging. A shame, considering the price of these headphones, but not a dealbreaker.

Bose says that these have a "revolutionary mic system" for clarity on calls, and while it's definitely good for a pair of cans without a boom mic, I would not call it revolutionary. Using them, you sound generally clear if a tad quiet, and occasionally a little digitally enhanced. It was good enough, but a real mic close to the mouth is still way, way better. They have a 'Self Voice' feature to hear yourself on calls, and overcome the weird 'I sound like I'm locked in a box' feeling of talking on the phone with headphones on. You can turn this off if you prefer.

The battery life is perhaps the biggest flaw here: 24 hours with ANC on, and 18 hours with Immersive Audio on, is meager. You get a middle-of-the-road 30 hours from the Sony WH-1000XM5 and an excellent 60 hours from the Sennheiser Momentum 4 Wireless. And compared to using a pair of Sony cans regularly, I really noticed how quickly these were running down in comparison; Bose's estimate appears to be accurate, and it makes a difference. It's the single thing that held them back from a full five stars, to be blunt about it.

There a few things to mitigate this, though. They have a prompt auto-pause feature when you remove them from your ears, and an auto-off feature if left turned on but unused, though this was set to 24 hours by default, and that eats a ton of battery over that 24 hours. In the Bose Music app, I switched this to 20 minutes, and that's working great for me, especially since they turn on and connect very promptly. They also charge quickly, including a 15-minute juice-up for two hours of use.

• Features score: 4/5

Bose QuietComfort Ultra Headphones review: Sound quality

• Stunning detailed and powerful sound balanced perfectly
• The ANC is the best-in-class, no question
• Immersive Audio does its job, but adds some effects

Bose doesn't really mention this in the QuietComfort Ultra Headphones' specs, but they use a pair of angled drivers in the earcups. We've seen this concept before on the Bowers & Wilkins Px8, and the idea is that, while most headphones have drivers installed flat inside the earcups, this isn't ideal for perfect audio. Your head is not square (er, probably), and earcups don't sit directly flat on your skull, which means in most headphones, the drivers aren't parallel to your ear canals. One side of the driver is closer, which means its sound reaches you marginally faster. So the speakers in the Ultra (and the Px8) are angled in the earcup, so when they're on the head they're parallel to your ears (or as close to it as possible). This should mean improved timing, and the best possible detail, because all the air is reaching you in a balanced manner.

I mention all this for some context, because these things absolutely freaking rule. They deliver some of the most alive, exciting, textured, finely resolved, deeply engaging music I've ever heard from a pair of wireless headphones. It's the kind of sound I would expect to pay 50% or even twice as much for – and I'd begrudgingly accept that it's worth it. The Bose QuietComfort Ultra Headphones may not be cheap, but on the music quality alone, I think they're a great deal.

You will probably notice the bass first. Put on anything with some low-end chops, and you'll notice yourself sinking into its depths immediately, but with a firm and controlled floor. It can punch deep down and pull straight back up with precision, and never feel like it's overplayed its hand.

It's helped by just how rich and layered the mids are. Bass is free to go for a walk because it doesn't drag the mid-range with it – voices hover comfortably and naturally, instruments stay separated but part of a whole, fine detail is clear from everywhere. And the treble is shimmering and lofty without ever getting harsh or detached.

The dynamism within the Ultra Headphones' range is just astounding. They can go from nothing to rocketing through sounds like a firework that's just sparked up. Their timing is so strong and they're so responsive that this aspect alone can really spoil other headphones, making them feel like they're moving with weights attached in comparison.

And they sound like this with active noise cancellation on, over AAC on Bluetooth! Several companies (including Apple) say that most headphones don't even reveal the detail possible in standard wireless sound and that hi-res isn't really necessary for a lot of people. We've always championed that people should have the higher-quality option available to them, at least… but I can certainly feel some truth of this argument when I'm using these headphones.

Like the sound, the active noise cancellation is mind blowing. It's absolutely best in class, there's no question. I've never heard busy cities become as quiet as when I'm walking with these on, it's truly next-level stuff.

I have found them to have an odd processing issue with some extremely loud sounds – during a plane take-off, an especially loud bus struggling to get up a hill, and on an extremely windy day, for instance. In these cases, when the noise reached its apex, the headphones' sound became blocky and loud, too. It was brief, so I don't find it to be a dealbreaker, but the fact remains. Bose may be able to fix this with an update, who knows.

The Immersive Audio option does well at its fundamental job of making it feel more like the sound is coming from speakers around you, rather than being pumped straight into your ears. The head tracking works very well, and never felt lagged or detached from my head movements, either. But while it's pleasant for both music and movies, ultimately, I didn't find it very additive, partly because it turns out to be a trade-off.

The immersion and positioning of sounds is done based on processing stereo sound, which is a bit different to the spatial audio you get from Apple's AirPods, where it's based on Dolby Atmos 3D sound systems (when possible). And, as someone who's used AirPods Max and AirPods Pro 2 a lot, it didn't have the same convincing recreation of a theater system as you get from those headphones. Again, this isn't really a problem, and I still liked having it on for watching a movie on a plane because it did still create the feeling of the sound coming from outside of the earcups.

But it also adds some effects, including a sense of reverb for some upper-mid or treble sounds. It makes the sound feel less sweet, so for music I never got on with it. I'll still use it for watching movies on flights, however.

• Sound quality score: 5/5

Bose QuietComfort Ultra Headphones review: Design

• Very premium plastic and faux leather finish
• Folding design is great for travel
• Physical and touch-based controls

The QuietComfort Ultra Headphones are as comfortable and premium-feeling as you'd expect for the money. The plastic earcups and headband top have a great soft-touch matte finish, and are connected to the headband by solid aluminum hinges. Protein- and plastic-based faux leather are used for the headband's underside and the earpads, and they're very comfortable and soft to wear.

The earcups fold into the headphones, so they can get smaller for journeying, and they come with a nice hard case, which has a USB-C-to-A charging cable and the audio jack cable inside the box. They're definitely some of the best headphones for travel, thanks to this combined with their active noise cancellation might.

On the right earcup are the controls, which include one button that turns them on and off, and controls pairing mode, and does play/pause/skip tracks. A second button switches between different listening modes – it cycles through whatever you have set in the Modes screen, so if you've added custom ones, it includes that. Next to these buttons is a touch-sensitive strip that controls volume, and holding on it is the 'Shortcut' button. These all work well.

On the left earcup is the USB-C port and the 2.5mm jack, plus a charging light.

I can only find one minor gripe with the fit, and that's the fact that if you put them around your neck and rotate the earcups to lie flat, they rotate so the open side is up, rather than facing down towards your body. I prefer the other way around. Hardly a major issue.

• Design score: 5/5

Bose QuietComfort Ultra Headphones review: Value

• Expensive, but easily worth it overall
• A clear step from the non-Ultra QuietComfort Headphones
• Lack of other hi-res support is a shame

While any pair of headphones that costs this much is going to be hard to describe as the bargain of the century, I still think the Bose QuietComfort Ultra Headphones are actively good value considering just how strong their active noise cancellation and audio quality is. They're not a little better than the likes of the Sony WH-1000XM5; they're clearly and obviously better. They're slightly better than the AirPods Max, and those are much more expensive than the Bose.

And they tick almost all the feature boxes, too, so they feel like a great investment from the smart side of things – though they are beaten in smarts by the location-based cleverness of the Sennheiser Momentum 4 Wireless or Sony headphones.

Where they obviously fall short is a lack of full aptX or LDAC support for wider wireless CD-quality sound, or USB-C audio support for hi-res digital wired audio. Other premium options have this, it should really be here – but not everyone will mind. I don't, really.

The battery is the clear lacking element, since less expensive headphones with the same kind of features are able to not just beat these, but to absolutely embarrass them in the case of the Sennheiser Momentum 4 Wireless.

But I'm living with that. It's a small frustration, it's not a dealbreaker. I still think they're well worth the price tag.

• Value score: 4/5

Should I buy the Bose QuietComfort Ultra Headphones?

Buy them if...

Don't buy them if...

Bose QuietComfort Ultra Headphones review: Also consider

How I tested the Bose QuietComfort Ultra Headphones

• Tested over three months
• Used mainly with an iPhone and MacBook Air
• Tested in real-world office, city and travel situations

I've been using the Bose QuietComfort Ultra Headphones since their launch, taking the time to test them in as many different situations as possible. I've used them in the TechRadar offices, at home, and travelling on buses, trains and planes, to really get a sense of their real-world performance. They've been my primary over-ear headphones during that time.

I've been compared them directly to headphones including the Bose QuietComfort Headphones, Bose Noise Cancelling Headphones 700, Apple AirPods Max, Sennheiser Momentum 4 Wireless, and Sennheiser HD600.

In day-to-day use, I mainly used them with my iPhone to listen to Apple Music tracks, but I used them with an iPad Pro for watching videos from various streaming services, and to test the multi-point connectivity. I've also used them with audio from various other sources, including Spotify, podcasts and YouTube. For wired use, I connected them to my MacBook Air.

Read more about how we test

• First reviewed: January 2024