Great hi-fi sound from stereo speakers with built-in amplification

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Three main parts are required for a hi-fi system: two speakers, an amplifier, and a source. However, not every task necessitates distinct boxes; active speakers, or speakers with built-in features, can tick off two of those boxes with just a source attached to them. As comprehensive hi-fi systems, many active speakers nowadays—including those on this list—check all three boxes by providing wi-fi connectivity and integrated access to music streaming services.

Active speakers, on the other hand, more often cling to physical analogue and digital connections, but they occasionally conveniently accept Bluetooth as well. Although the active speakers may appear to be ordinary passive speakers from the front, these cabinets are packed with powerful and intelligent processing, and many of them can handle high-resolution audio.

The benefits? Less boxes to accommodate—a separate stereo amplifier is unnecessary, after all—and a harmonious sound integration between the speaker and amplification components. Indeed, if you value system neatness, active speakers make a great deal of sense.

Our section below on how to choose active speakers will be helpful if you’re not exactly sure what you need. If you do, however, you should dive right into our list of the top active speakers, which has been carefully examined in special testing areas and personally selected as the greatest of the best by our in-house specialists with over 150 years of combined experience.

QUICK LIST

• BEST OVERALL : KEF LSX II
• BEST BUDGET : Triangle AIO Twin
• BEST PREMIUM : KEF LS50 Wireless II
• BEST FLOORSTANDERS : KEF LS60 Wireless
• BEST HIGH-END : JBL 4329P Studio Monitor

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1. KEF LSX II

Awards winner. Awesome active speakers with built-in streaming, perfect for smaller rooms.

SPECIFICATIONS

Bluetooth: 4.2

Inputs: HDMI ARC, USB-C, optical, wi-fi streaming, AirPlay 2, Google Chromecast

Outputs: Subwoofer

Power: 200W

Dimensions (hwd): 24 x 15.5 x 18cm

Weight: 3.5kg (each)

TODAY’S BEST DEALS

For those seeking whole-system convenience and musicality from two small boxes, the KEF LSX II are excellent active speakers. They combine an amplifier, network streamer, and Bluetooth receiver into a stylish set of stereo speakers. For those who cannot afford the company’s more expensive, larger, and admittedly better-sounding LS50 Wireless II, of which the LSX II is descended, these are our top pick.

The original KEF LSX provided a wide range of source options, including AirPlay 2, Spotify Connect, Roon compatibility, DLNA streaming, and Tidal. However, this sequel goes even further by supporting even more streaming services and adding modern features like USB-C and HMDI ARC for TV and laptop/phone connectivity, respectively.

Fundamentally, KEF has taken an already successful formula, added some significant enhancements to boost utility and usability, and—without really changing the speaker hardware—produced a gifted stereo speaker system that sounds great with any kind of music that is thrown at it.

The system “has an assured approach to rhythms,” as our in-house reviews team noted in our LSX II review. But when we moved to Olafur Arnalds’ piano-led Ljósið, we found that the LSX really captured our attention: “Smooth and bodied enough to bring a sweet lushness to the piano-playing, but insightful enough to reveal the varying weight on the keys as well as the slight coarseness in the accompanying violin.”

In the end, the KEF LSX II is a sophisticated system without any of the extra boxes and luggage that come with a separate setup. The crowning glory? They are available in a variety of chic colours, including black, white, red, blue, and green, to go with your interior design.

Having said that, if the LSX II is a bit too expensive for you, KEF’s more recent model, the LSX II LT, provides the same performance at a lower cost; they simply lack a few extras, such a wireless connection between the speakers.

At this price range, the somewhat bigger but otherwise identical in design and functionality Dali Oberon 1 C active speakers are also worth taking into account. They also include a separate hub to house all of their connectivity.

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2. Triangle AIO Twin

Awards winner. Surprisingly versatile, great-sounding streaming active speakers for not much money

SPECIFICATIONS

Bluetooth: 5.0, aptX, aptX HD, aptX LL

Inputs: Wi-fi, Ethernet, RCA / Phono MM line level, 3.5mm, optical, USB-A

Outputs: Subwoofer

Power : 2 x 50W

Dimensions (hwd): 23.5 x 16.5 x 30.4cm

Weight: 10.3kg

TODAY’S BEST DEALS

Although the Triangle AIO Twin appears to be a pair of “normal” speakers, these active speakers are actually a full-featured hi-fi system, albeit one that is far more reasonably priced, much like the KEF LSX II above and many others on this page.

However, the amenities offered don’t match this low price tag. With a built-in phono stage, this Triangle system can play almost anything, including vinyl records and music files stored on your home network (via wired Ethernet or wi-fi). It can even play Bluetooth streaming from your phone. Its optical input allows it to also function as a TV soundbar substitute. Additional physical connections consist of a subwoofer output, a USB-A port for phone charging, a pair of RCA analogue connectors, and a 3.5mm aux input.

The great app allows you to play internet radio and supports all the major streaming services.

We stated in our AIO Twin review that “this system is incredibly fun to listen to”. “It’s a passionate performer that wants you to enjoy the music being played. It’s willing to tackle any genre and recording quality.” However, it also has a very stunning adult sense of serenity coursing through it.” We also praised its mastery of tempo, dynamics, and frequency balance—two crucial musical components. Expect “taut bass, clear voices and sparkling, clean treble that’s punchy but never bright”.

It only falters a little when using the integrated phono stage. We would advise installing an external, budget-friendly phono stage to improve on that front, even though the lively character stays the same. In comparison to the other inputs or network streaming quality, it doesn’t sound as clear, accurate, or expressive.

This system is worth considering if you want an affordable high-quality music system that sounds amazing and doesn’t require a lot of money.

(Image credit: whathifi)

3. KEF LS50 Wireless II

Awards winner. These multi-award-winning streaming active speakers are complete in every way.

SPECIFICATIONS

Bluetooth: 4.2

Inputs: RCA, optical, coaxial, 3.5mm, HDMI eARC, wi-fi streaming, AirPlay 2, Google Chromecast

Outputs: Subwoofer

Power: 760W

Dimensions (hwd): 30.5 x 20 x 31.1cm

Weight: 20.1kg

TODAY’S BEST DEALS

When it was first released, the KEF LS50 Wireless active speaker system was quite distinctive, which inspired other manufacturers to take similar approaches. It’s true that this much expected sequel surpasses the excellence of its predecessor, which is no small accomplishment, especially for an audio company as savvy as KEF.

Because of its cutting-edge performance and connection, the LS50 Wireless II, like its esteemed predecessor, makes an excellent all-in-one (or all-in-two) system. Upgraded parts and a new KEF Connect app, which gives you access to services like Tidal, Qobuz, Amazon Music, and Deezer, are among the improvements. In addition, these Roon-ready active speakers support AirPlay 2, Google Chromecast, Bluetooth, and other streaming services.

The remarkable sonics of KEF’s design are complemented by its revolutionary MAT absorption technology, which won us the Innovation of the Year award, and the company’s updated Uni-Q drivers.

For an integrated product, the original LS50 Wireless was a breakthrough in sound performance, and its sequel only builds on those strengths. Here, the “neatly layered and nicely defined” soundscape and “clean and precise” approach are elevated to a new level. “The whole presentation has been opened out, that extra room not only filled with subtler, more precise detail, but also allowing for greater instrument separation that makes its delivery sound much less congested in comparison,” observed one of our in-house testers, highlighting the presentation’s spaciousness. The crisp mids and enhanced treble also reflect the use of the new MAT technology.

Simply said, this sophisticated sequel—and big brother to the LSX II above—should be at the top of your shopping list if you’re looking for a well-equipped, incredibly convenient, superb-sounding system loaded with streaming intelligence.

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4. KEF LS60 Wireless

Ambitious and pricey, but ultimately everything an active floorstanding system should be.

SPECIFICATIONS

Bluetooth : 4.2

Inputs: Optical, coaxial, RCA, HDMI eARC, wi-fi streaming, AirPlay 2, Google Chromecast

Outputs: Subwoofer

Power: 1400W

Dimensions (hwd): 109 x 21.2 x 39.4cm (with plinth)

Weight: 36.2kg

TODAY’S BEST DEALS

With the LS50 Wireless standmounts (above), KEF redefined what you could expect from an all-in-one stereo system. Now, with the gorgeous LS60 Wireless floorstanders, which pack stereo speakers, amplification, and streaming intelligence into two slim (CD-width!) towers, the company has managed to raise the bar once more.

However, to put it mildly, the KEF LS60 Wireless are more than merely floorstanding speakers modelled after the bookshelf model. The picture and asking price above demonstrate how much more the firm has thrown at the LS60, putting it on a completely new level. If you’re intrigued by what these beauties are capable of, we highly suggest reading our comprehensive review of the KEF LS60 Wireless.

In summary, though, the British company has succeeded in fusing outstanding feature set, engineering, and user experience with an alluring user interface, all culminating in outstanding audio quality.

AirPlay 2, Google Chromecast, UPnP, Bluetooth, Roon Ready, Spotify Connect, Tidal Connect, and additional access to Amazon Music, Qobuz, and Deezer are just a few of its multipurpose features. HDMI eARC, optical, coaxial, and RCA stereo are all supported for connectivity, but neither PCM 24-bit/384kHz PCM, DSD256, nor MQA file support can be sniffed at.

Furthermore, “it’s fair to say this system serves up arguably the finest audio we’ve heard from such a product so far,” as our reviewers enthusiastically stated. The soundstage has a beautiful dimension and spaciousness to it, and the drive components are well integrated. We were really astonished by how much power and weight were on display for speakers that are so little. The presentation is not just entertaining and exciting but also well-organised and precise.

For those looking for a superior floorstanding solution that is both practical and affordable, the LS60 Wireless system is a great example of contemporary hi-fi and currently has no genuine competitors.

(Image credit: whathifi)

5. JBL 4329P Studio Monitor

Awards winner. An impressively powerful and imposing active speaker system, both to look at and listen to.

SPECIFICATIONS

Streaming: Wi-fi, Google Cast, AirPlay 2, aptX Adaptive Bluetooth

Inputs: XLR, 3.5mm aux, Toslink/optical, USB Type B

Outputs: Subwoofer

Finishes: x3

Dimensions (hwd): 51.5 x 32 x 32.2cm

Weight: 15.7kg (primary); 15.6kg (secondary)

TODAY’S BEST DEALS

Although active speakers are frequently made to take up less space, if you choose to get a pair of JBL 4329P Studio Monitors, you’ll need a lot of room.

These speakers are large and commanding, and not just because all the necessary equipment for streaming and amplification is integrated into them. It should come as no surprise that each speaker weighs more than 15.5 kg considering that each is powered by a 300-watt amplifier, of which 250 watts go to the 20cm woofer and the remaining 250 watts to the 25mm horn-loaded driver. To put them in perspective, they might be twice as big as the KEF LS50 Wireless II mentioned above.

They generate a similarly massive and strong sound that effectively captures the scope and magnitude of a recording. Bass chords can also be effectively anchor by their bass extension. Even while we think the KEFs are a little more musical overall, they outperform the KEFs in this particular area by a large margin.

Here, there’s no shortage of nuance or tonal balance, even with the JBL’s exuberant drive and undeniable influence. It is by no means a brute: in our evaluation of the 4329P Studio Monitor, we noted that “there’s a sophistication brought by decent levels of dynamic expression here, as well as a smoothness to the midrange that ensures vocals sound pleasingly lush and full.” Impressive is also the dynamic expression.

There’s no doubting the JBL’s presence and abilities, although the treble could be a little more refined and the Bluetooth performance is notably worse than the presentation over the wi-fi or cable connections.

Every speaker requires mains power, and 32-bit/192kHz playback can be accessed by connecting them via an Ethernet cable (the wireless link can only handle 24-bit audio). There are numerous options available for music playback, regardless of how you want to set them up. In addition to balanced XLR, Toslink/optical, USB, and 3.5mm inputs, they support AirPlay 2, Google Chromecast, and DLNA. These speakers have a lot of low-end weight, but you can also attach a subwoofer if you’d like to add extra bass!

Searching for something with a somewhat more understated style? Maybe the Dali Rubicon 2 C, which is priced similarly, is more your style.

How to choose the best active speakers for you

Like the Acoustic Energy AE1 Active in this list, active speakers have historically required sources to be connected to them. But these days, a lot of them—like the few KEF LS systems mentioned above—integrate Bluetooth and, more and more, even network streaming, effectively turning them into full hi-fi systems. Just like anything else, though, the engineering of a device may be impacted by the addition of streaming, so select active speakers with streaming only if you want to utilise the capability. If you’re content to occasionally stream music on your phone, you can always attach a specialised music streamer for high-performance streaming in the future. Alternatively, you can just use a Bluetooth receiver.

In general, connectivity options are just as crucial to consider when making a purchase as sound and aesthetic preferences; the active speakers you select should also be determined by the degree of source integration you need. When connecting a TV as one of your sources, for instance, search for a pair that has an HDMI connector or, better yet, an optical port.

Either your record player or your speakers must include a phono stage if you wish to play vinyl through your active speakers. If your turntable is without one, search for active speakers that have one built in. Read our reviews to determine how well they perform; if not, you will need to install an extra phono stage in between the two parts.

Lastly, unless their design is suitable for a desktop, budget for a set of high-quality speaker stands if you decide to go with standmount (or “bookshelf”) active speakers. They will function at their best if you set them up on strong, stable stands.

FAQ

What are active speakers and how do they work?

Active and passive stereo speakers are the two distinct kinds that can be distinguished. The’standard’ driver-filled enclosures that are known as passive speakers need an external stereo amplifier in order to produce sound. An internal crossover filters the proper frequencies for each driver once the signal from the amplifier reaches these boxes.

Even while some speakers are passive, they nevertheless contain an amplifier built in, frequently hidden inside only one of the two boxes. Known as “powered” speakers, these comprise the majority of the more reasonably priced amplified models, including the Ruark Audio MR1 Mk2 on our list.

Alright, speaking now. These again feature built-in amplifiers, but this time there’s a single amp for every ‘way’. Thus, two power amplifier modules will be present in a two-way speaker that has a single tweeter and a single mid/bass driver unit. The ‘active’ digital crossover that powers these devices operates at a voltage far lower than that of its passive relatives. This implies that the parts can be tuned for accuracy rather than just power management, which could lead to a more well-balanced, accurate sound.

How do you connect active speakers to a TV?

You can connect your TV to a pair of active speakers using either HDMI ARC/eARC or optical connections. (RCA and 3.5mm connectors were once common, but fewer TVs now have them.)

Both optical and HDMI ARC can broadcast stereo PCM (uncompressed) and Dolby/DTS 5.1 (compressed); but, because to its larger bandwidth, HDMI eARC is able to send the next-generation surround sound formats, DTS:X and Dolby Atmos. To be clear, this discrepancy shouldn’t significantly affect how you watch TV with your stereo active speakers.

Be aware that while optical does not support HDMI CEC (Consumer Electronics Control), ARC/eARC enables your primary TV remote to manage the fundamental power and volume settings of your soundbar.

See How to Connect Speakers to TV for further information.

Can you use active speakers with a turntable?

Yes, but you need a phono stage on your turntable or active speakers, if not both. This is required to provide a sound that is audible via your system and elevate the audio output of your turntable to line-level. Additionally, it adds standardised equalisation at the same time.

Your turntable can be connected straight to the RCA inputs of an active speaker if it has an integrated phono stage. If not, it can be connected to the special phono-toting RCA input on your active speakers (usually this has a switch to set the RCA input to ‘phono’ mode).

If none of them work, you’ll have to wire a different phono stage box to the turntable and speakers.

How we test active speakers

Every piece of hi-fi and AV equipment that comes through our doors, including active speakers, is tested by our team of knowledgeable in-house reviewers in our cutting-edge testing facilities in London and Reading.

Since the whole point of What Hi-Fi? is comparative testing, we evaluate each pair of active speakers by comparing them to the industry leader at the moment to see how they stack up against the finest in their respective classes. Ruark Audio MR1 MkII and KEF LS50 Wireless II are two examples of What Hi-Fi? Award winners that we maintain in our stockroom so we can always compare new products to beloved models. In order to confirm our contextual knowledge, we also try our best to examine as many new models in as many markets as we can.

When doing our tests, we always maintain objectivity and make sure to use reliable sources to hear each pair of active speakers at their best. We test them in optimal scenarios using various collaborating source kits, such as a laptop or phone streaming from a compatible streaming service over Bluetooth or wi-fi, or a comparable wired source component. We test each input that a pair of active speakers provides in order to determine how consistently they work. In order to make sure they match their file support specifications and have sound qualities that suit a wide range of musical tastes, we also play a variety of file formats and music genres through them. We, of course, allow each pair to listen for several days (and at least 48 hours to run in), too.

To ensure that we are being as thorough as possible and to remove any personal preferences, the team as a whole agrees on every review verdicts rather than just one reviewer. Regarding the decision, neither our sales team nor PR firms have any say. What Hi-Fi? is happy to have provided objective, truthful reviews for many years.