Does it matter what size soundbar you buy?
Yes, for all sorts of reasons
A soundbar is a must-buy for any home cinema enthusiast who doesn't have the budget and/or space for a full speaker package – but, with a wealth of options, how do you know which one is right for you? You could start by looking at the size.
While size may not be everything, it does have a big impact on how the bar performs and how it fits into your home entertainment set-up. Let me explain.
Like a glove
First of all, and most obviously, you need a soundbar that fits your space. You might be tempted to get the biggest, most powerful model you can afford, but if it doesn’t fit in the area allotted, it's not going to be much good.
But there's a lot more to it than just making sure it physically fits into your TV cabinet. There are also the aesthetics to consider. Remember, you'll have to look at it every time you settle down to watch something, so you want a soundbar that’s of a piece with its surroundings.
I was so keen to try out the Sonos Arc Ultra for a feature a while ago that I eschewed the tape measure altogether. As you can see from the photo at the top of this article, it made my ageing LG TV look like it had wings.
For the neatest look, go for a soundbar that’s roughly the same width as your TV, or slightly shorter. We’ve made some pairing recommendations below to get you started.
A soundbar that’s too big for your TV won’t simply look awkward; it will skew the sound, too. Soundbars are designed to project sound from just below the screen, and if yours extends way beyond the dimensions of your TV, it could throw the staging off.
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Made to measure
There are other, more practical considerations, too. You need to make sure the soundbar doesn’t obstruct the bottom of the screen while you’re watching – otherwise you could miss elements such as a key plot development, visual gag or match-saving tackle.
Most premium TVs let you adjust their height to accommodate a soundbar. But it’s still vital you measure the bar’s height first to make sure it fits.
Your TV cabinet might have a shelf on which your soundbar fits perfectly, but there are other factors to consider.
Lots of the best Dolby Atmos soundbars have upwards-firing drivers to add height channels to the mix – that way, a helicopter on-screen will sound as if it is passing overhead. But if your soundbar is on a shelf, those height channels will be shooting straight into the underside of the surface above. Imagine turning your hi-fi speaker against the wall, and you get the idea.
Wall-mounting avoids a lot of these pitfalls, but that brings hazards of its own – the most important being weight. A big soundbar such as the Sennheiser Ambeo Soundbar Max tips the scales at 18.5kg, so you want to make sure your wall is up to the task of supporting it. No one needs their movie watching interrupted by the soundbar thundering to the floor, ripping off half the wall in the process.
The best soundbars for big and small TVs
So now you know what to look out for, which models of soundbar should you consider? We have collected some of the best below to match to your TV size.
The best soundbars for small TVs
When it comes to choosing a soundbar, you might restrict your choice to the big hitters (Samsung, Sonos, Sony), but that would be a mistake. Lesser-known brands can deliver too – just take the Creative Stage Pro.
At 55cm wide, it’s small enough to fit under a 32-inch TV, though you will have to find space for the separate subwoofer. Despite its small size, it delivers a surprisingly cinematic performance, with impressive detail and solid low-level dynamics.
Stepping up a gear is the Sony HT-SF150, which is ideally suited to a 43-inch TV. It is also very affordable, yet feels much more premium, and has Bluetooth for wireless playback from your phone or tablet. Sony’s S-Force Front Surround technology is on board, too – this applies processing to make the sound more enveloping, adding more weight and separation to the mix.
But probably the best of the small soundbars is the Sonos Beam Gen 2, which we have no hesitation in recommending – it has won a What Hi-Fi? Award for five years running. It offers Dolby Atmos but without the upwards-firing drivers. It still puts in a convincing performance, though: rich, three-dimensional and full of detail. It will even serve bigger TVs well, such is its power.
The best soundbars for bigger TVs
At 114cm wide, the Sonos Arc is more than twice the width of the Beam, making it ideal for TVs around 55 inches in size (such as the Sony Bravia 8 II and TCL C7K and LG C6).
It has 11 drivers (two of which are upwards-firing) to create one of the most convincing Atmos performances you can get from a single-chassis soundbar. Placement is superb, and there’s great weight and dynamism to the sound.
The Focal Mu-so Hekla is another great option at this size, though it doesn’t come cheap. Though when you consider that it’s basically a home hi-fi system as well as a soundbar, it looks like considerably better value.
Because of its unusual skillset, it is an odd shape, and so harder to accommodate than a more traditional bar. But one listen and you’ll know that it’s worth it.
The best soundbars for massive TVs
If your TV is more like an advertising screen than a television, then you have some great options for soundbars.
The Samsung HW-Q990F managed to outdo even its Product of the Year predecessor. This soundbar package comes with a subwoofer and two surround speakers, making it a bit more intrusive than a simple ’bar alone. But a big TV demands a big room, so hopefully you’ll have space for these extra components.
And it’s worth making space if you can. The subwoofer unearths new levels of bass, but manages to sound wholly integrated into the overall sound at the same time.
The Sonos Arc Ultra is Sonos’s flagship soundbar, and another Award winner. Its sound is clean, precise, spacious and three-dimensional, with enough scale to do even huge TVs justice.
The KEF XIO also won a What Hi-Fi? Award last year – a stunning feat for KEF’s first-ever soundbar. It blesses larger TVs with impressive musicality, tight bass and a full-bodied midrange.
Finally, the Sennheiser Ambeo Soundbar Max is a hulking beast of a ’bar. It stands 127cm wide and weighs a whopping 18.5kg. Good luck getting it in place, but once you have, the results are glorious.
MORE:
The best soundbars you can buy
The best Dolby Atmos soundbars around
Strapped? The best budget soundbars

Joe has been writing about tech for 20 years, first on staff at T3 magazine, then in a freelance capacity for Stuff, The Sunday Times Travel Magazine (now defunct), Men's Health, GQ, The Mirror, Trusted Reviews, TechRadar and many more. His specialities include all things mobile, headphones and speakers that he can't justifying spending money on.
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