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Marshall has refreshed its mid-sized home speaker, which promises enhanced bass, dynamic loudness tech and improved tweeters, among other things. Yes, the Marshall Acton IV looks to be quite the improvement over its predecessor, and after testing it for myself, I have to say, it certainly makes good on its promises.

Let’s start by taking a look at the tech specs. The Acton IV features a single 60W woofer alongside two 25W tweeters, helping it to produce powerful and energetic audio. It also has a frequency response of 37Hz-38kHz, meaning it can extend down seriously deep for such a compact speaker — and you can really feel the bass… more on that later.

One standout difference between the Acton IV and its predecessor is its inclusion of RCA connectivity. This makes it a great option for hooking it up to turntables, for instance, and it’s easy to switch between Bluetooth and RCA mode with the built-in source controls. 3.5mm connectivity is back too, if you want to access lossless audio — something I always look out for when testing the best Bluetooth speakers.

Although these connectivity options are all very welcome, it would have been great to see Wi-Fi playback, given that this is a speaker most people will likely keep at home. Streaming using your home's Wi-Fi network is ideal for such speakers because it provides an even more stable, higher-resoltuion quality than Bluetooth can offer, and means that notification sounds on your source device don’t play through your speaker. Still, there is LDAC this time out — something that Marshall has been keen to integrate into its consumer audio products recently, as we saw with the Marshall Milton ANC. This opens up higher-res wireless playback over Bluetooth (provided you've got a source device that supports it), and it works great if you’re streaming on platforms such as Tidal, for instance.

Despite the omission of Wi-Fi, the Acton IV does include Auracast, enabling you to create a multi-room setup with other products from the brand, such as the Marshall Heston 120 soundbar and Marshall Stanmore IV. Some older models, like the Marshall Acton III can also join the Auracast multi-room setup with the Marshall Heddon streaming hub.

I was also interested to find that the Acton IV connects to the newer ‘Marshall’ app, which has so far been restricted to the brand’s TV audio gear. It feels more intuitive and detailed than the standard app, and features a five-band equalizer, which enables you to set three presets of your liking. You can also customize the speaker’s M button to cycle between these. The app also enables you to cycle between different sources, optimize audio with a placement compensation tool, set a standby timer, and adjust the brightness of the speaker’s LED indicators. Good stuff.

One thing that may dissuade some from picking up the Acton IV is that it lacks baked-in voice assistant support. This means that it can’t act like a smart home speaker in the way that a Sonos model would, say.

But, by now, you must be wondering: just how good does the Marshall Acton IV sound? Well it’s good news, because it sounds pretty great. Something that instantly struck me, is that the speaker has a very exciting sound signature, with attention-grabbing and relatively prominent bass, as well as energetic, forward-sounding treble.

This was great for livelier genres like dance tracks. For instance, in Get It On by Jansons, higher-pitched drums came through with serious bite, hitting with speed and precision. Meanwhile, pumping bass came through with great impact without ever overshadowing vocal chops and synths in the mid-range. Even with some deeper house tracks, I was truly wowed by the Acton IV’s bass extension. It can reach down into deep dark depths with great confidence, and even the sub-bass was full-sounding and seismic.

Luckily, the Acton IV continued to perform well with more laid-back tracks. In Ned Doheny’s Sing To Me, soulful vocals were nicely weighted, and came through with solid clarity. They weren’t separated to the point that they occupied a unique pocket in the mix, although when I bumped things up in the mid-range, they had a little more space to express themselves. Bass definitely remained fairly weighty, and although this gave the tune a pleasantly funky edge, some may prefer to mess around with different EQ settings.

It’s also worth noting that the Acton IV has a stereo sound configuration, rather than the basic mono that a lot of Bluetooth speakers use. While it doesn’t produce the most amazing stereo imaging I’ve ever experienced, this is understandable for a smaller-sized speaker. In All Along the Watchtower by Jimi Hendrix, vocals were well-defined in the left channel, and percussion expanded well beyond the Acton IV’s limited confines. With LDAC on, I also appreciated the speakers attention to detail, with small vocal quirks and subtle percussive elements illuminated to impressive effect.

My main critique of the Acton IV’s audio output relates to its control at higher volumes. Despite including the dynamic loudness tech seen on the Marshall Kilburn III, for instance, I found that the speaker could sound a tad harsh at high volumes. At 90% and above, compression was more noticeable, with highs turning slightly shrill and bass lacking the control I’d experienced at mid-volumes. It's pretty standard for speakers to compress towards maximum loudness, though, and if you’re looking for meatier sound, the mightier Stanmore IV is available.

Moving on to an area where Marshall speakers always excel now: design. The Acton IV looks very similar to its predecessor, but that’s no bad thing. It has enticing faux leather casing, a neat speaker grille, and a gorgeous golden control panel. Its amp-inspired aesthetic makes it feel like just as much of a statement piece as it is a great-sounding speaker.

The buttons and control knobs are also highly responsive and satisfying to use, and there are even onboard EQ controls for the bass and treble if you want to make some changes on the fly.

But it’s time to address the most crucial question of all: is the Marshall Acton IV worth the money? Let’s start by looking at its price. The Acton IV comes in at $299.99 / £259.99 (AU$430). That’s by no means cheap, and puts the speaker in competition with the Wi-Fi equipped Sonos Play and home speakers like the JBL Authentics 200.

I’d argue that the Acton IV certainly sounds up to scratch for this money. It offers mighty yet refined bass, clean and detailed mids, and vivid highs. It's also decently powerful, and would make a great fit for a small or medium-sized space. However, the lack of Wi-Fi playback may prove to be a deal-breaker for some — it’s the connectivity method many will favor for home speaker use, and again offers better quality and seamlessness than Bluetooth.

Still, its brilliant design, solid set of features and, of course, impressive audio capabilities, means this is still a great home speaker. All in all, I’d recommend the Acton IV if you want a powerful and stylish speaker, even if you’re a little limited on space. If you want something more portable, the Marshall Kilburn III is a great alternative, though, coming with a handle, 50-hour battery life, and waterproofing at a very similar cost.

• $299.99 / £259.99 (AU$430)
• First released July 2026

The Marshall Acton IV was released in July 2026, just short of four years after its predecessor came to market. It launched alongside the Marshall Stanmore IV, which is essentially just a larger variant of the Acton. It comes in at $299.99 / £259.99 (AU$430), representing a slight price bump in the US, but continuity in the UK, if we’re comparing it against the Acton III.

Weight

5.8lbs / 2.6kg

Dimensions

10.24 x 6.73 x 5.91 inches / 260 x 171 x 150 mm

Connectivity

Bluetooth 5.3, 3.5mm, RCA

Speaker drivers

1x 4-inch 60W woofer, 2x 0.75-inch 25W tweeters

Waterproofing

Not stated

Attribute

Notes

Score

Features

Nifty app and RCA is a welcome addition, but lacks Wi-Fi playback.

4/5

Performance

Fantastic bass extension and vivid highs with clean mids, some compression at top volumes though.

4.5/5

Design

Brilliant looking speaker with retro, amp-inspired aesthetic.

4.5/5

Value

Not the cheapest, but performance and build help it to earn price.

4/5

You want a stylish home speaker
Something that stands out with Marshall speakers every time is their design. And the Acton IV is no exception. Its faux leather outer casing, its golden details, its eye-catching grille… it all comes together to make a truly stellar-looking speaker.

You want great sound in a (relatively) compact model
Although the Acton IV is hardly the largest home speaker out there, it really does sound great. It has fantastic bass extension, with clean and hard-hitting low end. Highs are articulate and vibrant too, although mids still get plenty of space to shine. The LDAC codec also helps you access a more detailed listen.

You want a speaker to take on the road
The Marshall Acton IV is designed for home use. Therefore, it needs to be plugged into the mains to be used, and its lack of a handle, rechargeable battery, or waterproofing, means you’re better off with a model like the Marshall Kilburn III for on-the-go audio.

You want a smart speaker with Wi-Fi
Although the Acton IV is designed for home use, it misses out on some of the properties of a smart speaker, like voice-assistant compatibility and Wi-Fi connectivity for the most seamless playback around.

Marshall Acton IV

Sonos Era 100 SL

WiiM Sound

Price

$299.99 / £259.99 (AU$430)

$189 / £169 / AU$289

$299 / £299 / AU$499

Weight

5.8lbs / 2.6kg

4.3lbs / 2kg

5.5lbs / 2.5kg

Dimensions

10.24 x 6.73 x 5.91 inches / 260 x 171 x 150mm

7.2 x 4.7 x 5.1 inches / 182.5 x 120 x 130.5mm

5.7 x 5.7 x 7.5 inches / 146 x 146 x 193mm

Connectivity

Bluetooth 5.3, 3.5mm, RCA

Wi-Fi 6, Bluetooth 5.3, USB-C

Wi-Fi 6E, Bluetooth 5.3, 3.5mm

Speaker drivers

1x 4-inch 60W woofer, 2x 0.75-inch 25W tweeters

2 x angled tweeters, 1 x mid-woofer

2x tweeters, 1x woofer

Sonos Era 100 SL
Want a Sonos home speaker at an easy-to-stomach price? Then the Era 100 SL is an ideal option. It has Wi-Fi playback, precise and detailed sound, and a gorgeous look, making it well worth its modest price tag. Read our full Sonos Era 100 SL review.

WiiM Sound
Another great Wi-Fi equipped speaker is the WiiM sound, and it sits at a very similar price as the Acton IV. The WiiM sound supplies fantastic sound quality, has a unique and intuitive touchscreen, and voice assistant support. Read our full WiiM Sound review.

• Tested across multiple days
• Used at our dedicated music testing space at Future Labs
• Mainly streamed music over Tidal

I spent days testing the Marshall Acton IV, listening to hours worth of music, testing its various features, and exhausting every option available in its companion app.

For the most part, I tested the Acton IV in our dedicated music testing room at Future Labs, where I mainly streamed tunes via Tidal on my Xiaomi 17. I started by playing tracks in our TechRadar reference playlist — which features songs from a wide variety of genres — but I also bumped a bunch of tunes from my personal library.

More generally, I’ve spent years testing audio gear here at TechRadar. I’ve reviewed all sorts of tech, from premium wireless headphones like the Sony 1000X The Collexion through to Dolby Atmos soundbars such as the JBL Bar 1300MK2. I’ve also tested more than 50 Bluetooth speakers, including lots of Marshall models, such as the Marshall Middleton II and Kilburn III.

• Read TechRadar’s reviews guarantee
• First reviewed: July 2026

• A Reddit user manually upgraded their MacBook’s storage chips
• The process involved soldering, 12 hours and ‘some nerves’
• The move saved them $2,200 after Apple recently increased its prices

How much is too much to pay for laptop storage? After Apple’s shocking price rises, things might feel so bad that you’re tempted to roll up your sleeves and perform an emergency DIY upgrade job on your MacBook. That’s exactly what one Apple fan did — and they saved themselves a cool $2,200 in the process.

Posting on Reddit, user arduinoRPi4 explained how they took their MacBook Pro with 2TB of storage and boosted it all the way to 8TB, quadrupling their available storage with a serious improvement that means they can “store anything I want.” They spent “around $800” on parts, which saved them $2,200 (around £1,650 / AU$3,170) compared the exorbitant $3,000 (about £2,240 / AU$4,320) it would have cost to pay Apple for a similar upgrade.

Of course, this being Apple, opening a MacBook Pro and increasing its storage yourself is far from straightforward. The post revealed that it took them 12 hours “and some nerves” to make the change — and no wonder, as doing so requires removing the existing storage modules from the MacBook Pro’s mainboard and soldering alternative chips in their place.

As well as that, the poster indicated that they had to “fill in the power components on the other side as well” in order to complete the upgrade. “That was really hell,” they admitted, adding that these parts “are TINY packages.”

All the work was done while they were on vacation in Shenzhen, China, where they “borrowed a lab from a friend who does component level repair.” They used a hot air station and microscope soldering and stencils to do the work, which involved soldering power management integrated circuits into place, followed by 4TB of NAND storage chips on each side of the laptop for a total of 8TB.

If you’ve got the resolve, patience and skill for a spot of laptop surgery like this, the savings can be enormous. A 14-inch MacBook Pro with M5 Max chip and 2TB of storage will set you back $4,099 / £4,099 / AU$6,399 at Apple’s increased prices. Change the storage to 8TB and that tweak will add a hefty $3,000 to your bill, bringing the total to an eye-watering $7,099 / £7,099 / AU$10,899.

The difference is even starker when you apply this change to Apple’s entry-level MacBook Pro. A 14-inch MacBook Pro with M5 chip and 2TB of storage currently costs $2,499 / £2,499 / AU$3,949. Add 8TB of storage and the total shoots up by a colossal $4,600. That’s partly due to the expensive storage addition and partly because it requires changing the M5 chip to an M5 Max, which is the only chip that can be configured with 8TB of storage.

A $3,000 upgrade is well out of reach for most MacBook buyers (much less a $4,600 one), so it should perhaps be unsurprising that an enterprising user with plenty of experience and a little time on their hands felt motivated to manually upgrade their storage.

Most posters in the thread were highly impressed with their work, with comments like “very impressive, I could never” being typical. One user was especially effusive in their praise, saying “This kind of work blows my mind.”

That said, other users weren’t happy that a task like this is even needed at all. “Crazy that you have to go this level of modifying just to upgrade your storage,” said one, indicating that Apple’s increased storage prices are not exactly the most popular move it’s ever made.

But with the artificial intelligence (AI) goldrush pushing up component prices worldwide and Apple unwilling to compromise its famously high margins, increased costs are here to stay, at least for the time being. And while that’s still the case, there will probably be plenty more people willing to take on the considerable task of upgrading their laptop’s storage with a few off-the-shelf components and a soldering iron to hand.

Chinese robotics firm Agibot has launched a range of humanoid robots designed to look, move, and sound like human beings in the UK business-to-business (B2B) market.

The Shanghai-based company, founded in 2023 by two former Huawei engineers, hosted a launch event in London on June 30, 2026, with several of its A3 full-sized humanoid and X2 half-size humanoid robots in attendance, as well as current and prospective business partners.

The robots — all controlled by humans with smartphones and DualSense controllers — were deployed at several demo stations in the event space.

One X2 humanoid robot was set up to dance to peppy music, cutting some serious shapes for a constant crowd, while another in a Harry Kane shirt kicked a football into a net. A third wore a suit of (admittedly very cool) Gundam-style armor, demonstrating the robots’ potential for customization.

As for the full-sized A3 humanoid — less expressive than its smaller sibling, with sharper angles and a rather blank circle in place of the X2’s animated ‘eyes’ — a unit was made available to greet guests and for photo opportunities.

In a presentation at the UK launch event, Agibot co-founder and COO Daniel Jiang said: “The robot business is the AI business. Robots should understand you, know what you say, talk to you, and work for you.”

Indeed, at the launch event, the word ‘robot’ was as common as the phrase ‘embodied AI’, as Agibot representatives attempted to position the firm’s product range as a signifier of a new technological era: the ‘fourth industrial revolution.’

In a later talk, co-founder and R&D president Yan Xiong said: “Of the products I’ve worked on, embodied AI is the most exciting and inspiring. Through three intelligences in one body, robots can become human-like.”

The three intelligences in question control interaction, locomotion, and manipulation, powered by on-device AI models that communicate with cloud servers. It seems that Agibot sees itself as an AI company first and foremost, and is allocating its resources in kind: “Our main focus is the research and development of the three intelligences, taking up 75% of our R&D staff, and 80 per cent of our R&D budget.”

That’s not to say that the firm's humanoid robots aren’t profoundly impressive. The units are made mainly of magnesium alloy, with titanium reinforcements at pressure points to ensure rigidity. The A3 weighs 55kg, which is pretty reasonable when you consider its 5-foot-8-inch (173cm) height, and lasts up to 10 hours on a single charge of its 1152W battery.

In comparison, the 4-foot-3-inch (131cm) X2 weighs 39kg and lasts for two hours. The units communicate with the internet via dual-module, dual-SIM 5G.

Also present were units from Agibot's D1 quadruped range, inexplicably programmed to do backflips on command, as well as G2-series industrial robots and C5 cleaning robots. The top-tier D1 model, the D1 MaxPro, has a carrying capacity of 50kg, while only weighing 68kg itself.

Agibot is young but quickly increasing its production capacity. It recently rolled out its 15,000th unit, having passed 10,000 units just three months earlier, and has already deployed its G2 industrial robots in China’s Longcheer electronics factory. Indeed, much of the event was dedicated to promoting possible use cases for each model in industries like construction, live entertainment, and the corporate world.

Having shaken hands with the X2 and watched the D1 wave its ‘paw’ and, again, perform several perfect backflips, I have to admit that I’m still stunned by Agibot's range of robots. The firm’s launch has done nothing to allay my many concerns about AI, but it’s still almost unbelievable to see actual droids walking around.

It’s clear that Agibot wants its robots to be relatable — the dance moves, handshakes, and free kicks are obviously an effort to instill some kind of affection in a crowd of possible customers. I’d be lying if I said I didn’t find the X2 wildly entertaining, even though I know it's just metal and plastic — but that’s the power of pattern recognition.

If Agibot can make strides towards its professed goal of autonomous operation, then we really aren’t too far away from having a real-life C3PO on our hands.

It’s early days, but the firm’s leadership sounds committed. In his presentation, Yan Xiong said: “Scaling to mass production is the first hurdle to mature the embodied AI industry. After we achieve mass production, the next step is to bring our portfolio to commercial availability."

“AI should not be confined behind screens,” he later added, “it must be brought into the physical world.”