Marshall Acton III Bluetooth Speaker Midnight Blue (7340055408196)
26 cm wide: it finds a place on a shelf or a chest of drawers without dominating the room, while still filling it thanks to its outward-facing treble. A 3.5 mm jack input alongside wireless, settings from the Marshall app.
Compact dimensions: 260 x 170 x 150 mm
60 W amplification: 30 W for the woofer, 2 x 15 W for the tweeters
Outward-facing treble and redesigned waveguides
3.5 mm jack input alongside wireless
Bass and treble adjustment on the speaker or in the app
Marshall Bluetooth app and over-the-air updates
70% recycled plastic, materials of no animal origin, PVC-free
The Acton III Midnight Blue carries over the signature electronics of the Acton range: a 30 W Class D amplifier dedicated to the woofer and two 15 W amplifiers for the highs, for a total of 60 W. Bluetooth 5.2 provides fast, stable pairing, complemented by a 3.5 mm jack input. Its midnight blue finish and gold woven grille offer a darker, more refined take on Marshall's vintage design, for a compact living-room speaker that fits easily into any interior.
60 W (class D amplifiers: 30 W for the woofer, 2 x 15 W for the tweeters)
Box contents
Acton III speaker, mains cord, user manual and legal and safety information
Battery capacity
None (mains power)
Battery type
None (mains powered)
IP protection rating
No protection rating stated
Frequency response
45 Hz - 20 kHz
Audio input
1 mini-jack input (3.5 mm)
Battery life
None (mains-powered, no battery)
Technical specifications (continued)
Speaker type
Living room speaker (stationary)
Audio power
31 W to 60 W
Battery runtime
Mains-powered, no battery
Playback sources
3.5 mm jack input
Charging time
None (mains powered)
Drivers (transducers)
1 woofer, 2 tweeters
Wireless pairing and daisy-chaining
None
Local media playback
None
Charging connector
None (mains power)
Warranty
1 year
Specific references
EAN
7340055408196
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Frequently asked questions about this product
Does the Marshall Acton III run on battery power?
No: it is a living-room speaker, powered from the mains, to be placed on a shelf, a sideboard or a desk. It is not designed to be taken outdoors — that is the approach of Marshall's home range, which puts sound ahead of portability.
Can two Marshall Acton III speakers be paired to cover a large room?
No. The manufacturer is explicit: this speaker is standalone and cannot be used as a pair or in a group with other Marshall speakers. For a larger room, choose a bigger model in the range rather than two Actons.
How are the Acton III's 60 W distributed?
Across three Class D amplifiers: one 30 W amplifier for the woofer and two 15 W amplifiers for the tweeters. The tweeters face outwards, with redesigned waveguides, to widen the soundstage in the room.
Can a wired device be connected to the Acton III?
Yes, via its 3.5 mm jack input — the model's only audio input. Unlike other speakers in Marshall's home range, the Acton has no RCA input, and the HDMI connector is reserved for the largest model.
Do you need to install an app to use the Acton III?
No, the speaker works without it: everything is on the top panel — source, volume, bass, treble, play, pause, skip forward and back. The Marshall Bluetooth app is still recommended for advanced settings and over-the-air updates.
Where should the Acton III be placed in a room?
Wherever you like: placement compensation, adjustable in the Marshall app, adapts the sound to the chosen spot — against a wall, in a bookcase, in a corner. At 260 x 170 x 150 mm, it fits on a shelf without dominating the room.
Can the bass and treble be adjusted on the speaker itself?
Yes: two dedicated knobs, bass and treble, sit on the top panel alongside the volume and playback controls. The app offers the same settings, plus additional controls, but it is not needed for equalisation.
How do you pair a new phone with the Acton III?
Hold down the Bluetooth button until the light flashes, then select the speaker in your phone's device list. No prior setup is needed: the model is ready to use as soon as it is switched on.
What materials is the Marshall Acton III speaker made of?
A PVC-free design including 70% recycled plastic and 100% plant-based materials: the covering imitates leather without being leather. The Midnight Blue finish and the gold woven grille echo the visual codes of the brand's amplifiers.
Is the speaker new and covered by a warranty?
Yes, new equipment, with the invoice serving as the warranty document. The Marshall Bluetooth app then provides over-the-air updates to the firmware, which lets the speaker receive new features after purchase.
Volume, bass and treble are set with knobs on the top, without going through the phone. A 30 W amplifier for the bass and two 15 W ones for the treble fill a living room, and the 3.5 mm jack input takes wired sources.
•60 W amplification: 30 W for the woofer, 2 x 15 W for the tweeters
150 W spread over three ways and bass reaching down to 35 Hz: enough to fill a large living room. The HDMI input connects it to the TV, the AUX and RCA inputs to other sources.
Built-in FM radio, MP3 player from a USB flash drive or microSD card, Bluetooth: the music starts even without a phone. 40 W, LED lighting and an IPX6 body in recycled plastic for twelve hours of partying.
More than fifty hours of playback on one charge, and sound spread over 360 degrees with no dead spot. The dials on the top panel set bass, treble and volume, just like on an amp.
The clear dome projects patterns of light above it, whose colour is set in the Harman Kardon One app. Underneath, a 143 mm woofer, six mid-range drivers and a tweeter add up to 160 W and fill the whole room.
Forty watts under an IPX6 waterproof plastic fabric cover, with a shoulder strap to carry it. Its 4,000 mAh battery also recharges the phone while the music keeps playing.
40 W and LED light effects that turn a terrace into a dance floor. Built-in FM radio and USB / microSD player: it plays even without a smartphone, and its IPX6 rating lets it stay outdoors.
Fifty watts and a rear passive radiator are enough to fill a room. Twelve hours of battery life, FM radio and playback from a USB flash drive or microSD: it plays even without a smartphone.
More than 32 hours of listening per charge, and 20 minutes on the mains is enough for 6 hours more. True Stereophonic sound is delivered at 360°, and the built-in microphone lets you take calls.
A telescopic handle and wide wheels to move 25 kg without carrying it. 400 W, a strobe light show and two XLR inputs that take a microphone, a guitar or a DJ controller for impromptu karaoke.
