Our Verdict 
A small speaker with big personality, the Qb combines style, substance and a whole lot of features at a more affordable price
For 
Outstanding build
Feature-packed
Big, bold sound
Decent detail
Strong rhythmic know-how
Against 
Bass a little rich at high volume
Could have a touch more insight through the midrange
Reviewed on

In 2014, Naim took some time out from producing more traditional hi-fi kit to have a punt at the wireless speaker market, and not only gained a legion of new fans, but also proved it could bring hi-fi sound quality to a one-box design, albeit at a price.

Now Naim is taking this a step further, by taking everything that we love about the original Mu-so and squeezing it into a more affordable, more compact design.

The result is the Mu-so Qb, a stylish speaker with a small footprint but a big personality. And with a performance this good, we’re only too happy to stand back and let it work its magic.

MORE: Awards 2015: best wireless speakers

Video review

Build

If you've seen the Mu-so, the Qb’s design will look familiar, except instead of a long, rectangular outline, the Qb is – as its name alludes to – a compact cube shape. It’s a striking yet minimalist design, with an illuminated acrylic base that makes it look as though it’s hovering; its otherwise crisp outlines softened by the characteristic ripple of the Qb’s three grilles.

As with the Mu-so, these grilles can be switched up from a dramatic black to more playful choices of blue, red or orange, while the back edge of the cube is given up to the same distinctive aluminium heat sink that kept things cool on the original.

Plenty of design similarities then, but while the original Mu-so needs a considerable amount of space, the Qb’s more flexible design means it can fit on your bedside table, on the kitchen worktop or in the corner of a room.

It’s impeccably made – heavier than it you might expect, and topped with the same gorgeous touchscreen dial that we loved on the original Mu-so. As well as adjusting the volume, the aluminium dial also doubles as the control panel for the Qb, allowing you to tap illuminated icons to select inputs and manage playback.

It’s a stylish and sophisticated system that works wonderfully well, while also looking the part. Considering the design has been borrowed from Naim’s £100,000 flagship Statement pre/power amp, we’re not surprised.

MORE: Naim Mu-so Qb - a compact £595 wireless speaker

More after the break

Features

To get the sound it wanted from such a small speaker, Naim carefully positioned a five-strong custom driver set up into a sturdy casing behind the front panel, placing some at an angle in order to widen the sound.

The set up comprises two dome tweeters and two mid-range drivers, as well as a single woofer supported by two passive radiators, which helps the Qb go deep in the low end. It’s run on the exact same 32-bit DSP as the Mu-so too, all of which comes together to deliver a huge 300W of sound – no mean feat for a speaker of this size.

But the real coup for the Naim Qb is that it comes with all the streaming features found in the bigger Mu-so. This means Apple AirPlay, aptX Bluetooth, Spotify Connect, Tidal and internet radio are all present, as is uPnP for sniffing out music stored on your home network for playback.

MORE: Naim Mu-so review

On its back panel there are also a number of physical connections, including a 3.5mm aux in and an optical input, plus a USB port for external drives and Apple devices.

Fans of high-resolution music are in luck, with support for everything from MP3s all the way up to 24-bit/192kHz hi-res tracks in WAV, FLAC and AIFF. The only catch is that you’ll need to be hardwired to get the very best sample rates – any hi-res tracks streamed over wi-fi will be downsampled to a still respectable and “better-than-CD-quality” 24-bit/48kHz.

With all the connectivity to choose from, connecting to the Qb can be as simple as pairing via Bluetooth, but you’ll get the most from it (and unlock all of its functionality) by hooking it up to your home network via wi-fi or ethernet.

For the former, the easiest way to get things rolling is to download the Naim control app, ensuring your device is connected to the network. The app will then walk you through the set-up process – with an iPhone or iPad it’s as simple as selecting the Qb from a list of Airplay devices within your wi-fi settings menu.

Once you’re set up, the app of course doubles up as a controller – handy since there’s no remote in the box. We don’t miss it though – the app is well designed and allows you to skip between sources, select and edit internet radio presets and control playback with ease. It also gives you access to further settings like controlling the base’s illumination and setting the alarm clock.

It will even allow you to set up a multi-room system with up to four other Mu-so’s, which can play in simultaneously or independently – all controlled from your phone or tablet.

Sound

One of the first things that strikes us about the Qb is just how powerful it is for a small speaker. It delivers a size and scale that you just wouldn’t have expected from such compact dimensions.

It suits its rather bold demeanour, with an upfront, muscular presentation that certainly isn’t short of clout in the low end.

Listen to Top Boy by Blacks and the larger-than-life bassline is deep and weighty. It’s taut and controlled for the most part, if perhaps a little on the rich side for neutral ears, but it does deliver a real sense of solidity to its character that helps with lower quality recordings and streams.

There is a hint of thickness to the bass when the volume is pushed, but it’s far from a dealbreaker. Most usage won’t require anything like the volume levels you have to reach before it really becomes noticeable… because this can go loud. Really loud.

While the bass might steal the show in the sonic signature, its solidity rubs off on the midrange and treble too. Vocals are clean and focused, while the high-end sounds open and composed – there’s no hint of hardness here.

We do note a slight lack of subtlety in the midrange when compared to something like the cheaper B&W Zeppelin Wireless though, with finer details staying hidden beneath its bold-as-brass presentation and dynamics also not quite as expressive.

For example, Nina Simone’s Baltimore, with its sassy instrumental mix of guitars and violins, doesn’t rise and fall with quite the same command as you’ll hear with the B&W.

But where it falls short of in these areas, it really makes up for in its rhythmic flair, and leaves the Zeppelin Wireless for dust. Half of the charm of Baltimore’s instrumental is the foot-tapping exchange between the bass guitar and kick drum that punctuates the track, and the Qb delivers the punch it needs.

Play Home by St. Lucia, and the staccato electronic instrumental is delivered with both bite and precision, starting and stopping on queue while keeping a tight hold on its presentation throughout.

Even the most complex rhythmic patterns can’t fluster it, as is shown by a playthrough of Roulette Dares (The Haunt of) by The Mars Volta. The Qb keeps up at every change of tempo and makes rhythmic sense of manic riffs that lesser speakers would stumble over.

It’s a masterclass in timing, and it’s this that really makes the Qb character one to fall in love with. Its bold, upfront sound may well grab your attention, but the punchy precision and rhythmic know-how holds it from there on in.

Verdict

We praised the ability of the original Naim Mu-so to deliver hi-fi sound in a wireless speaker, and the Qb follows in these footsteps with a big, authoritative sound that belies its small stature.

It complements the Mu-so’s slightly more refined sound with one that’s a touch more mainstream in its balance, packing a punch in the low end and delivering a real sense of presence and solidity.

This confident persona can mean the Qb falls a touch short with finer detail and dynamics, but it makes up for this with a superb handle on timing for a tight presentation that’s both upfront and exciting. Add to this a whole load of connectivity for streaming to the Qb and it makes for a very comprehensive speaker indeed.

While £600 is still a lot of money to spend on a wireless speaker, if the budget is there, there’s no doubt the Qb should be on top of your consideration list.

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Naim Mu-so Qb
£499
Receive free UK delivery on eligible orders from one of the largest, most trusted independent Hi-Fi and AV specialists in the UK. Established in 1972, our focus has been providing excellent products, service and value to our customers for over 40 years.
£649
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£649
Free delivery UK mainland, brand new products, full warranty, official authorised dealers, over 30 years’ experience in Hi Fi and Home Cinema
£525
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The Competition 

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Sonos Play:5 (2015)

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Price from £409
Breakdown 
Sound
Features
Build