Acton III Bluetooth Speaker
Acton III Bluetooth Speaker
Expert Praise
This tiny home speaker will surprise you with brilliantly powerful sound and it looks really cool with its vintage style
— T3
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Why It Made The List
The largest in our Marshall lineup, the Acton III is a serious home speaker, made with solid, premium components and robust build specs. This updated version features redesigned surround sound, resulting in a larger, more immersive acoustic footprint. It connects quickly with Bluetooth and OTA (Over-the-Air) functionality delivers next-gen software features as soon as they're released. The iconic brass Marshall control panel lets you dial volume, base and treble directly, and pairing with the Marshall app gives you even greater control over the equaliser. This latest design strips back the aesthetics to better emulate the legendary guitar amps that started it all. The look and feel is high-quality vintage, which is exactly what we want from Marshall.
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At A Glance
- Wider soundstage with angled tweeters
- HDMI input adds easy TV hookup
- Pair, play and tweak via the app
- Marshall styling looks as good as it sounds
SPECIFICATIONS
SPECIFICATIONS
AUDIO SPECIFICATION
Frequency range: 45–20,000 Hz
Adjustable bass and treble controls: Fine-tune your music using the analogue controls on your speaker
Stereo/mono: Stereo
Maximum sound pressure level: 95 dB @ 1 m
Cabinet principle: Bass-reflex
Power Amplifiers: One 30 Watt Class D amplifier for the woofer, two 15 Watt Class D amplifiers for the tweeters
POWER
Power: Mains input voltage 100–240 V
Network Power Standby: No
Mains Frequency: 50–60 Hz
CONTROLS AND CONNECTIVITY
Wireless connectivity: Bluetooth 5.2, ready for Bluetooth LE Audio
Wired connectivity: 3.5 mm Input
Bluetooth range: 10 m / 30 ft
Customise sound: Yes, on speaker and in app
Top panel controls: Source button, volume control knob, bass control knob, treble control knob, play/pause button, skip backward/forward control knob, power switch
WI-FI: No
Microphone system: No
Voice command: No
COMPATIBLE APPS
Apps: Marshall Bluetooth app (iOS & Android)
OTA (over-the-air) software updates: Yes
Guaranteed product software security support until:
December 2025
PHYSICAL UNIT
Dimensions: 260 x 170 x 150 mm
Weight: 2.85 kg
Water Resistance: No
Colourway: Black
MORE DETAIL
MORE DETAIL
This generation in the home lineup features an even wider acoustic footprint than before, with Marshall's characteristic surround sound that has been redesigned to give you a more immersive experience. Generation III speakers carry outward-angled treble and updated waveguides to deliver solid sound that's so wide it reaches anywhere in the room.
These speakers are straight to business, so you can just pair and play without the hassle of a complex set-up. You’ll find everything you need right there on the unit, including the Bluetooth pairing button, power switch, bass and treble controls and the control knob so you can easily control your music without ever picking up your device.
Marshall has taken its signature rock ’n’ roll home speaker line-up and given it a stripped-back look that makes a loud statement. This iconic design knocks all other speakers off the shelf. Signature details such as the Marshall script and brass control knobs adorn each speaker, echoing the legacy of rock ’n’ roll.
With next-generation Bluetooth 5.2 and the 3.5 mm input, connecting to your speaker and listening to your music has never been so effortless. Download and connect to the Marshall Bluetooth app to access advanced settings and Over-the-Air (OTA) updates. While you can control the bass and treble on top of each speaker, you’ll also find additional controls in the app. Just connect to your speaker directly from your device and start listening.
Generation III is ready for the future of Bluetooth technology and has been built to deliver next-generation Bluetooth features the moment they are available. Over the Air (OTA) updates via the app ensure that your speaker is always up to date with the latest software and features.
The home line-up has music at heart and the environment in mind. While staying true to the iconic design that speaks to the brand’s heritage, this generation takes a more sustainable approach with a PVC-free build made from 70% recycled plastic and only vegan materials. Durable and solid, comprising high-quality materials and components, you can trust that your speaker will last.
SHIPPING AND RETURNS
SHIPPING AND RETURNS
SHIPPING OPTIONS
Standard - Royal Mail Tracked 48 (2-3 business days): £2.95
DPD Next Business Day (Cut off: 2pm Mon-Fri): £5.95
DPD Next Business Day by 12 Midday (Cut off: 2pm Mon-Fri): £12.95
DPD Saturday Delivery (Cut-off: Fri 2pm): £9.95
DPD Saturday Delivery by 12 Midday (Cut off: Fri 2pm): £12.95
DPD Sunday Delivery (Cut-off: Fri 2pm): £9.95
18+ PRODUCTS
18+ Standard - Royal Mail Tracked 48 + Age Verified (2-3 business days): £4.95
18+ Express - Royal Mail Tracked 24 + Age Verified (Usually next business day but not guaranteed, cut-off 2pm Mon-Fri): £7.95
FREE SHIPPING
FREE Royal Mail Tracked 48 (2-3 Business Days): Orders £90+
FREE Premium DPD Next Business Day (Cut off: 2pm Mon-Fri): Orders £250+
*All time-specific deliveries are usually delivered within advertised timeframes, but carriers do not 100% guarantee
N.B. For 18+ orders that include bladed products or alcohol, a £2 surcharge is added to normal shipping costs, to cover the legally required Age Verification service (as detailed above). All such orders will be shipped via Royal Mail.
For some rural postcodes next day delivery is not possible. For more detail on these postcodes, please see our Shipping page. There is no system check for these postcodes, so please do not select these services if your delivery address falls within this list.
RETURNS
We offer 100-day returns, provided items are returned in a perfectly re-sellable condition (undamaged and in original condition with tags/packaging). For more detailed information on conditions of return and the process involved, please see our Returns policy page.

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