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But just because theyve become a little more affordable, they havent lost their high-end, premium credentials.

On paper, theres very little between the Bose QuietComfort Ultra Headphones and the Sonos Ace.

Bose Quietcomfort Ultra

Both are properly built and finished, both look pretty good by prevailing standards.

So how do they stack up when theyre pitched together head-to-head?

They have multipoint connectivity, too.

Sonos Ace headphones

Crucially, it works from any source, not only compatible devices or sources.

Naturally, off is the way forward if you have battery life concerns.

you might even adjust the amount of your own voice you hear during phone calls.

Someone holding the Bose QuietComfort Ultra Headphones against a blue wall

Its worth noting this touch-control is pointlessly close to the physical controls, and is easy to use unintentionally.

The Sonos Ace are slightly more cutting-edge where the headline specification is concerned.

The company is prepared to admit to some ported acoustic architecture that contributes to the headphones low-frequency extension.

Bose QuietComfort Ultra…

Flat to full takes around three hours.

There are other physical controls here, too.

Naturally, the Ace can also be controlled by the Sonos app.

Bose QuietComfort Ultra…

The app is also where TV audio swap can be activated.

It’s compatible withSonos Arc Ultra,Sonos Arc,Sonos Beam,Sonos Beam Gen 2andSonos Raysoundbars.

The Bose QuietComfort Ultra Headphones sound very good indeed in stereo.

Bose QuietComfort Ultra…

Switching on immersive audio in the app certainly makes a difference.

Every strand of a recording becomes easier to follow, and the overall presentation is hey!

but they dont get sniffy if you stream some compressed 320kbps MP3 files instead.

Prime

In every circumstance, theyre an insightful and politely entertaining listen.

And the Ace resist changing their sonic characteristics as you increase the volume.

Integration is smooth, and the overall tonality is only slightly on the warmer side of neutral.

Sonos Ace - Black - Wireless…

Its definitely more pronounced if you listen to Atmos movie content either directly or using the TV audio swap.

The Ace cant quite summon the sort of dynamic impetus the QuietComfort Ultra Headphones can, either.

This is especially true of the Sonos Ace.

Sonos Ace - Black

The earpads are magnetically attached, and so can be easily removed to be cleaned or renewed.

And thats true no matter if you choose, black, white or the Bose website-exclusive sandstone finish.

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Sonos Ace headphones in their case, showing how they fit flat

Matt Bolton wearing the Bose QuietComfort Ultra Headphones next to a dark blue wall

A close-up of the Sonos Ace headphones pictured in their carrying case

Someone holding the Bose QuietComfort Ultra Headphones against a dark blue background

Sonos Ace headphones in soft white hanging on a stand

The Bose QuietComfort Ultra Headphones pictured in their carry case

Someone wearing the Sonos Ace headphones