Wireless speakers / Compare

Marshall Acton III vs Marshall Acton IV

A

Product A: Marshall

Acton III

40 of 96 known

Change Marshall Acton III

Compare the Marshall Acton IV with

Search wireless speakers

B

Product B: Marshall

Acton IV

43 of 96 known

Change Marshall Acton IV

Compare the Marshall Acton III with

Search wireless speakers

All 96 fields

Every value links to where we found it.

Only differences

AMarshall Acton III

BMarshall Acton IV

General

5 of 8 differ

Series

Not available

Not available

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

1006008, 1006009, 1006078, 1008131, 1008174, 1006006, 1006007, 1006077, 1008184, 1008185, 1006004, 1006005, 1006075, 1008173, 1008130, 1009086, 1009088, 10090901Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Page data lists product ids per colour and region. US store: 1006008 Black, 1006009 Cream, 1006078 Brown, 1008131 Midnight Blue, 1008174 Burgundy. UK, IE and AE: 1006006 Black, 1006007 Cream, 1006077 Brown, 1008184 Burgundy, 1008185 Midnight Blue. NL and NT: 1006004 Black, 1006005 Cream, 1006075 Brown, and 1008173 Burgundy (tagged CN, NL and NT). CN: 1009086 Black, 1009088 Brown, 1009090 Cream. 1008130 Midnight Blue has no region tag. The ids differ by colour and market, most likely by mains plug. The speaker is the same.

1009789, 1009794, 1009292, 1009301, 1009851, 10098521Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Colour selector product ids 1009789 Black and 1009794 Cream, read from the page data. The German store lists 1009292 and 1009851 for Black and 1009301 and 1009852 for Cream. John Lewis sells 1009851. Which ids differ by plug or region is not stated.2Maker product pagemarshall.com/de/de/product/acton-ivRead 14 October 2026German store page data lists variants ACTON IV BLACK 1009851 and 1009292, ACTON IV CREAM 1009852 and 1009301, all priced at EUR 299.12Retailer pagejohnlewis.com/marshall-acton-iv-bluetooth-speaker/black/p115377409Read 14 October 2026UK retailer lists manufacturer part number 1009851 for the Black model.

GTIN / EAN

7340055385060, 7340055385091, 7340055387194, 7340055408219, 73400554087381Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026EAN in the page data of each US colour page: 1006008 is 7340055385060, 1006009 is 7340055385091, 1006078 is 7340055387194, 1008131 is 7340055408219 and 1008174 is 7340055408738. EANs of the other ids were not found.

7340055423533, 73400554236321Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026EAN in the US page data: 1009789 is 7340055423533 and 1009794 is 7340055423632. EANs of the other ids were not found.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

9 June 20226Press articleengadget.com/marshall-home-speakers-acton-stockton-woburn-iii-lineup-wide-soundstage-hdmi-140038655.htmlRead 20 October 2026Article of 2022-06-09 reports the new Home Line III speakers. Pre-orders opened that day.

7 July 20265Press releasegroup.marshall.com/2026/07/07/marshall-unveils-next-generation-acton-iv-and-stanmore-iv-speakers-for-the-homeRead 14 October 2026Launch release dated 7 July 2026.6Press articlesoundguys.com/marshall-acton-iv-and-stanmore-iv-launch-159646Read 14 October 2026Published 2026-07-07, 8:00 AM ET.

Status

Available1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026US store sells all five colours at USD 299.99 with an Add to Bag button on 2026-10-20. The GB and DE stores also list them as orderable.

Available1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Listed on the maker store. The US store showed Sold Out with a Notify Me button on 2026-10-14. The German store and John Lewis take orders.2Maker product pagemarshall.com/de/de/product/acton-ivRead 14 October 2026Orderable on the German store.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Marshall Acton III11Reviewtomsguide.com/audio/smart-speakers/marshall-acton-iv-reviewRead 14 October 2026Tom's Guide says the Marshall Acton IV succeeds the four-year-old Acton III.

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Marshall Acton IV13Reviewtomsguide.com/audio/smart-speakers/marshall-acton-iv-reviewRead 23 October 2026Tom's Guide says the Marshall Acton IV succeeds the four-year-old Acton III.

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$2796Press articleengadget.com/marshall-home-speakers-acton-stockton-woburn-iii-lineup-wide-soundstage-hdmi-140038655.htmlRead 20 October 2026Article lists Acton III at USD 279. Tom's Guide and What Hi-Fi also give USD 279. US list prices exclude tax.

$299.996Press articlesoundguys.com/marshall-acton-iv-and-stanmore-iv-launch-159646Read 14 October 2026Launch article of 2026-07-07: Acton IV USD 299.99. TechRadar gives USD 299.99 and Tom's Guide USD 299. The US store later shows USD 329.99 and MusicTech reports that figure, so the store price changed or one outlet differs. The launch price is stored. Tax is not included in US list prices.9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-acton-iv-reviewRead 14 October 2026Price and release date: USD 299.99 / GBP 259.99 / AU$499, first released July 2026.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€2697Press articlehifi.de/news/marshall-update-bluetooth-lautsprecher-100860Read 20 October 2026German article of 2022-06-10 lists Acton III at EUR 269 and orderable at once. The German maker store shows EUR 299 including VAT now, which is a later price.

€2997Press articlehifi.blog/marshall-acton-iv-and-stanmore-iv-more-room-more-bass-more-marshallRead 14 October 2026Article of 2026-07-08 lists Acton IV at EUR 299. Stereonet of 2026-07-09 also gives EUR 299. The German maker store shows EUR 299 including VAT.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, GB, DE, FR1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026US store page with USD price. The maker's GB store (GBP 259.99) and DE store (EUR 299) list the same product ids as orderable on 2026-10-20. LDLC sells it in France.10Retailer pageldlc.com/en/product/PB00503434.htmlRead 20 October 2026Sold in France.

US, DE, FR, GB1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026US store page with USD price.2Maker product pagemarshall.com/de/de/product/acton-ivRead 14 October 2026German store sells it.12Retailer pagejohnlewis.com/marshall-acton-iv-bluetooth-speaker/black/p115377409Read 14 October 2026Sold in the UK at GBP 259.99.13Retailer pageldlc.com/en/product/PB00747535.htmlRead 14 October 2026Sold in France.

ColoursiThe maker's own colour names

Black, Cream, Brown, Midnight Blue, Burgundy1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Colorways: Black, Cream, Brown, Midnight Blue, Burgundy.

Black, Cream1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Colorways: Black, Cream.

Speaker typeiHome covers speakers made to stay in one place, including smart speakers. A speaker with Wi-Fi or a voice assistant can be of any type.

Home1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Page: Bluetooth home speaker, home line-up.

Home1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Page: Bluetooth home speaker.

Audio

6 of 18 differ

Audio channelsiSound channels reproduced by one speaker. Pairing two speakers for stereo is separate.

Stereo1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Stereo/mono: Stereo. Sound channels of one speaker.

Stereo1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Stereo/mono: Stereo. Sound channels of one speaker.

Audio driversiPowered audio transducers in one speaker. Passive radiators are counted separately. Circular diameter and rectangular width and height have separate columns. Per-driver power must state continuous or RMS basis and battery or mains operation in the source note.

AMarshall Acton III

Driver type	Count	Diameter (mm)
Woofer	1	101.6
Tweeter	2	19.05

Source9Reviewbeat.com.au/review-marshall-acton-iii-wireless-bluetooth-speakerRead 20 October 2026Review: two-way design with a 4-inch woofer and two 3/4-inch tweeters. Converted exactly to 101.6 mm and 19.05 mm. The maker page lists amplifier ratings only, one for the woofer and two for the tweeters, so the counts agree. No per-driver power is stored. The maker lists a bass-reflex cabinet, so no passive radiator is stored.10Retailer pageldlc.com/en/product/PB00503434.htmlRead 20 October 2026Retailer: 2 angled tweeters and 1 woofer.

BMarshall Acton IV

Driver type	Count	Diameter (mm)
Woofer	1	101.6
Tweeter	2	19.05

Source1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026One 4 inches woofer and two 0.75 inch tweeters with waveguides. Converted exactly to 101.6 mm and 19.05 mm. The page lists amplifier ratings only, so no per-driver power is stored. Bass-reflex cabinet, so no passive radiator.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

Not available

Not available

Rated audio poweriMaker-published total rated continuous audio output. Battery power is used for portable speakers when mains and battery ratings differ. Peak marketing power is separate.

Not available

Not available

Rated audio power on mainsiTotal rated continuous audio output with external power. Store a separate battery rating when the maker publishes both.

Not available

Not available

Audio output power (unspecified rating)iMaker- or reviewer-published audio output power whose continuous or peak rating basis is not stated. This is separate from rated continuous output and explicitly published peak output.

60W9Reviewbeat.com.au/review-marshall-acton-iii-wireless-bluetooth-speakerRead 20 October 2026Review: 60 W. This equals the maker's amplifier ratings of 30 W for the woofer plus 2 x 15 W for the tweeters. No continuous, RMS or peak basis is stated by the maker. LDLC calls it 60 W RMS, a retailer wording that is not used.10Retailer pageldlc.com/en/product/PB00503434.htmlRead 20 October 2026Retailer: 60 W total, class D amplification 2 x 15 W for the tweeters and 30 W for the woofer.

110W8Press articlesoyacincau.com/2026/08/17/marshall-acton-iv-and-stanmore-iv-speakers-launched-in-malaysia-priced-from-rm1699Read 14 October 2026Launch article: the Acton IV operates on a total power output of 110 W Class D amplification. This equals the maker's amplifier ratings of 60 W plus 2 x 25 W. No continuous, RMS or peak basis is stated, so it goes in the unspecified-rating field. LDLC lists 85 W RMS, which is not the sum of the maker's ratings and is not used.

Peak audio poweriExplicitly published peak audio output. Never substitute for rated continuous output.

Not available

Not available

Frequency response lower limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

45Hz1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Frequency range 45-20,000 Hz. Tolerance and mode are not stated.

37Hz1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Frequency range 37-38,000 Hz. Tolerance and mode are not stated.

Frequency response upper limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

20kHz1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Frequency range 45-20,000 Hz. Tolerance and mode are not stated.

38kHz1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Frequency range 37-38,000 Hz. Tolerance and mode are not stated.

Signal-to-noise ratio (claimed)

Not available

Not available

Adjustable equalizeriUser-adjustable frequency bands. Selecting fixed sound presets alone does not qualify.

Yes1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Page: Adjustable bass and treble controls, and customise sound: yes, on speaker and in app. The maker FAQ says the EQ can be adjusted using the top controls on the speaker. Two tone knobs, no multiband EQ is documented.9Reviewbeat.com.au/review-marshall-acton-iii-wireless-bluetooth-speakerRead 20 October 2026Review: physical treble and bass knobs on the top panel give on-unit tone control, separate from the app.

Yes9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-acton-iv-reviewRead 14 October 2026The Marshall app has a five-band equalizer with three presets of your liking. The M button cycles them.10Reviewheadphonecheck.com/test/marshall-acton-ivRead 14 October 2026App: five presets plus a 5-band EQ with three memory slots.

Equalizer bandsiNumber of user-adjustable frequency bands. Do not count sound presets.

21Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Two user-adjustable bands, the bass control knob and the treble control knob. Dynamic Loudness is automatic and is not counted.

59Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-acton-iv-reviewRead 14 October 2026Five-band equalizer in the Marshall app.10Reviewheadphonecheck.com/test/marshall-acton-ivRead 14 October 20265-band EQ. The review prints the dimensions as 171 x 150 x 260 mm labelled width, height and depth, copied from the maker page. That order is not used.

Automatic sound adjustmentiAdjusts audio to placement or playback conditions. Keep the named feature and conditions in the source note.

Yes1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Built-in Dynamic Loudness adjusts the tonal balance as the volume changes, so it is automatic. The FAQ also names Placement Correction in the Marshall app, which the user sets. Digit reports it is a questionnaire in the app and not automatic. Only Dynamic Loudness is automatic.

Yes9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-acton-iv-reviewRead 14 October 2026The app has a placement compensation tool that optimizes the audio for the speaker's position. The maker page calls it placement compensation and room calibration. Dynamic Loudness is a separate loudness balance feature.

Sound modesiNamed playback modes. Battery extension modes are also qualified in battery source notes.

Not available

Not available

Wireless stereo pairingiTwo compatible speakers can play separate left and right channels.

No1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026FAQ: this speaker is a stand-alone and cannot be used in pairs or multiple groups.2Maker product pagemarshall.com/us/en/support/speakers/support-for-acton-iiiRead 20 October 2026FAQ: this speaker is a stand-alone and cannot be used in pairs or multiple groups.11Reviewdigit.in/reviews/marshall-acton-iii-review-the-definition-of-luxury-listening-experience.htmlRead 20 October 2026Review: the speaker lacks daisy-chaining for a wireless stereo setup.12Spec databasesoundguys.com/product/marshall-acton-iiiRead 20 October 2026Spec table: stereo pairing No and multi speaker chain No.

Not available

Speaker link protocolsiNamed systems for linking compatible speakers, such as PartyBoost, Auracast or Party Connect. Linking support does not establish compatibility across all models.

Not available

Auracast1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Multi-speaker connectivity through Auracast broadcasts. Marshall Heddon, sold separately, is the broadcaster for older Marshall speakers and for Acton IV.11Reviewtomsguide.com/audio/smart-speakers/marshall-acton-iv-reviewRead 14 October 2026Auracast-enabled and connects to its Homeline IV sibling. Multi-speaker connectivity is listed as unlimited with the Heddon hub. No numeric maximum is stored.

Max linked speakersiPublished maximum in a speaker group. A stereo pair is recorded separately. A figure such as 100+ is stored as 100.

Not available

Not available

Max Bluetooth group speakersiPublished maximum speakers in one Bluetooth playback group, including the first speaker. Source notes name the compatible models or families, linking system and firmware requirements. Wi-Fi groups and concurrent Bluetooth source devices are excluded. A stereo pair alone does not establish the maximum when other Bluetooth linking systems are supported. A figure such as 100+ is stored as 100.

Not available

Not available

Connectivity

5 of 16 differ

Bluetooth audio playbackiPlays audio streamed over Bluetooth from a phone or other source. Bluetooth used only for setup or app control does not count.

Yes11Reviewdigit.in/reviews/marshall-acton-iii-review-the-definition-of-luxury-listening-experience.htmlRead 20 October 2026

Yes1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026

Bluetooth versioniVersion of the Bluetooth radio. Some Wi-Fi speakers use Bluetooth only for setup. See Bluetooth audio playback.

5.21Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Wireless connectivity: Bluetooth 5.2.

5.31Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Wireless connectivity: Bluetooth 5.3.

Bluetooth codecsiExplicitly supported receive codecs. Bluetooth version alone does not establish codecs.

SBC11Reviewdigit.in/reviews/marshall-acton-iii-review-the-definition-of-luxury-listening-experience.htmlRead 20 October 2026Review of 2023-11-01: the speaker comes with only the SBC codec, with no aptX or LDAC. The maker does not publish codecs. Some listings claim aptX. They do not name a source for it, so they are not used.

SBC, AAC, LDAC, LC31Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Codecs: SBC, AAC (MPEG-2), LDAC, LC3. Receive codecs.

Bluetooth profiles

Not available

Not available

Bluetooth LE AudioiExplicit LE Audio support. Bluetooth LE for app control alone does not qualify.

Not available

Yes3Owner's manualassets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdfRead 14 October 2026The factory reset steps name a second Bluetooth entry, ACTON IV [LE], which is the LE Audio device. HeadphoneCheck's Acton IV review also mentions LE Audio.10Reviewheadphonecheck.com/test/marshall-acton-ivRead 14 October 2026Review text mentions LE Audio, and LC3 is in the codec list. Notebookcheck also says both speakers support LE Audio.

AuracastiExplicit Auracast support. Sending, receiving and speaker-group roles belong in source notes.

Not available

Yes1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Wireless connectivity lists Auracast. FAQ: Acton IV is an Auracast receiver and joins a broadcast from a Marshall broadcaster such as Heddon, or from phones with the Listen to Broadcast feature in the Marshall app. It does not state a broadcaster role.4Maker product pagemarshall.com/us/en/support/speakers/support-for-acton-ivRead 14 October 2026Acton IV is an Auracast receiver and can be added to a multi-speaker setup using a Marshall broadcaster such as Heddon.

MultipointiConcurrent Bluetooth source connections. Pairing memory and speaker-to-speaker linking do not qualify.

Yes3Owner's manualassets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdfRead 20 October 2026Bluetooth pairing: Acton III can be connected to two Bluetooth devices at the same time. If a connected device is playing, a second connected device cannot start playing until the first is paused.

Yes1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Bluetooth Multipoint Connectivity: Yes.

Multipoint source devicesiMaximum concurrently connected Bluetooth source devices, not remembered pairings.

23Owner's manualassets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdfRead 20 October 2026Two Bluetooth devices at the same time.

23Owner's manualassets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdfRead 14 October 2026Pairing with a Bluetooth device: can connect to 2 Bluetooth devices at a time and remembers up to 8 previously paired devices.

Bluetooth range (claimed)iMaker-claimed Bluetooth range to the source device. Test conditions belong in the source note.

10m1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Bluetooth range 10 m / 30 ft.

10m1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Bluetooth range 10 m / 32.8 ft.

Wi-FiiBuilt-in Wi-Fi, for audio streaming, setup or control.

No1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026WI-FI: No.12Spec databasesoundguys.com/product/marshall-acton-iiiRead 20 October 2026Spec table lists Bluetooth and 3.5 mm AUX as connection types, no Wi-Fi.

No9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-acton-iv-reviewRead 14 October 2026Review states there is no Wi-Fi connectivity.11Reviewtomsguide.com/audio/smart-speakers/marshall-acton-iv-reviewRead 14 October 2026Review: Acton IV has no Wi-Fi streaming and no voice assistant support.

Wi-Fi standardsiOne 802.11 name per item, such as 802.11ax. A Wi-Fi generation is written as its standard, so Wi-Fi 5 is 802.11ac and Wi-Fi 6 is 802.11ax. Older standards are listed only when a source names them.

Not available

Not available

Network audio protocolsiNamed systems that stream audio to the speaker over the home network. AirPlay is written as AirPlay 2. Chromecast built-in is written as Google Cast. Other names follow the maker, such as Spotify Connect.

Not available

Not available

USB audio inputiPlayback from a connected computer or phone through USB. Charging, service ports and USB flash-drive playback do not qualify.

Not available

Not available

USB drive playbackiPlayback of audio files on a connected USB storage device.

Not available

Not available

USB audio file formats

Not available

Not available

PortsiPhysical speaker connectors. Record charging, audio input, power output and service roles separately. A shared microphone and guitar jack is one port. A combo jack that takes XLR and 6.35 mm plugs is 6.35 mm audio, and the role names XLR. Optical is a TOSLINK digital audio socket.

AMarshall Acton III

Connector	Count	Role
3.5 mm audio	1	AUX audio input on the top panel
AC power	1	Mains power input, 100 to 240 V, 50 to 60 Hz

Source1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Wired connectivity: 3.5 mm input. The product details and manual show the 3.5 mm input on the top panel and a power input. Mains input voltage 100-240 V and mains frequency 50-60 Hz. The FAQ says Acton has no RCA input.3Owner's manualassets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdfRead 20 October 2026Device layout: 3.5 mm input on top, source selection, power input with the included mains lead.

BMarshall Acton IV

Connector	Count	Role
3.5 mm audio	1	AUX audio input on the top panel
RCA	1	Stereo RCA audio input pair on the bottom panel, preamp required for turntables
AC power	1	Mains power input, 100 to 240 V

Source1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Wired connectivity lists AUX 3.5 mm. The features text and FAQ add the RCA input, and the manual shows both. Mains input voltage 100-240 V.3Owner's manualassets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdfRead 14 October 2026Top panel AUX 3.5 mm audio input. Bottom panel stereo RCA inputs, with an RIAA preamp for turntables, and the mains power input.

Controls and software

2 of 8 differ

SpeakerphoneiBuilt-in microphone and call support, through a connected phone or a voice assistant's calling. A microphone used only for voice commands does not count. Microphone inputs for karaoke are separate.

No1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Microphone system: No.12Spec databasesoundguys.com/product/marshall-acton-iiiRead 20 October 2026Spec table: speakerphone No.

No1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Microphone system: No.

Voice assistantsiVoice assistants explicitly usable through the speaker, such as Amazon Alexa, Google Assistant, Siri or Sonos Voice Control. State whether a connected phone is required.

Not available

Not available

Controls

Source button, Volume knob, Bass knob, Treble knob, Play/pause button, Skip backward and forward control, Power switch1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Top panel controls: source button, volume control knob, bass control knob, treble control knob, play/pause button, skip backward/forward control knob, power switch.3Owner's manualassets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdfRead 20 October 2026Device layout: source button, audio controls for volume, bass and treble, media control (push to play or pause, push right or left to skip), power switch.

Bass knob, Treble knob, Volume knob, Power switch, Media jog for play, pause and track change over Bluetooth, Customisable M-button, Source button1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Top panel controls: bass, treble, volume, power switch, media jog, M-button, source button.3Owner's manualassets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdfRead 14 October 2026Top panel: AUX input, source selector, audio controls for volume, bass and treble, M-button, media control, power switch.

Companion app

Marshall Bluetooth1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Compatible apps: Marshall Bluetooth app (iOS and Android).3Owner's manualassets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdfRead 20 October 2026Marshall Bluetooth app named for setup and updates.

Marshall1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Compatible apps: Marshall app.

App platforms

iOS, Android1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Compatible apps: Marshall Bluetooth app (iOS and Android).

iOS, Android3Owner's manualassets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdfRead 14 October 2026Closing page offers the Marshall app on Google Play and the App Store.

User firmware updates

Yes1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026OTA (over-the-air) software updates: Yes, through the Marshall Bluetooth app.2Maker product pagemarshall.com/us/en/support/speakers/support-for-acton-iiiRead 20 October 2026Latest firmware version: ensure the firmware is up to date by connecting the product to the Marshall Bluetooth app.3Owner's manualassets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdfRead 20 October 2026Troubleshooting: connect to the Marshall Bluetooth app and follow the in-app instructions to get the latest firmware.

Yes3Owner's manualassets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdfRead 14 October 2026Troubleshooting: connect to the Marshall app and follow the in-app instructions to get the latest firmware.4Maker product pagemarshall.com/us/en/support/speakers/support-for-acton-ivRead 14 October 2026Ensure the firmware is up to date by connecting the product to the Marshall app.

Built-in lightingiDecorative or ambient lighting. Status, battery, connection and microphone indicator LEDs alone do not qualify.

Not available

Not available

Lighting modes

Not available

Not available

Smart home

None of 3 known

Matter controlleriCan add and control Matter devices. Being a Matter device alone does not count.

Not available

Not available

Thread border routeriConnects Thread smart home devices to the home network.

Not available

Not available

Zigbee hubiA built-in Zigbee radio that controls Zigbee smart home devices.

Not available

Not available

Battery and charging

0 of 17 differ

Built-in battery

No1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Power section lists mains input only. The box holds a mains lead and no battery or charger is named. Digit and SoundGuys state it is mains powered.11Reviewdigit.in/reviews/marshall-acton-iii-review-the-definition-of-luxury-listening-experience.htmlRead 20 October 2026Review: powered off the wall and has no battery.12Spec databasesoundguys.com/product/marshall-acton-iiiRead 20 October 2026Spec table: power source AC mains.

No9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-acton-iv-reviewRead 14 October 2026Designed for home use and needs the mains. It has no rechargeable battery.11Reviewtomsguide.com/audio/smart-speakers/marshall-acton-iv-reviewRead 14 October 2026Spec table: Battery life: Mains-powered.

Playback time (claimed)iMaximum maker-claimed music playback on one charge in normal playback mode. Battery extension or reduced-bass boost modes belong in battery_life_boost_h. Record volume and lighting conditions in the source note.

Not available

Not available

Playback with battery extension (claimed)iTotal claimed runtime with the named battery extension mode enabled. Store the total, not only the extra hours. Keep sound and lighting restrictions in the source note.

Not available

Not available

Battery energyiPublished battery pack energy. Do not calculate from an assumed voltage.

Not available

Not available

Battery capacityiPublished pack capacity at the voltage in battery_voltage_v. Do not substitute power-bank output capacity. A figure written per cell, such as 5000mAh*2, is not a pack capacity unless the maker states the pack figure.

Not available

Not available

Nominal battery voltage

Not available

Not available

Battery chemistry

Not available

Not available

User-replaceable batteryiBattery that the maker documents as replaceable by the user. Service replacement does not qualify.

Not available

Not available

Full charge timeiTime from discharged to full under the maker conditions. Adapter rating and simultaneous use belong in source notes.

Not available

Not available

Quick charge duration

Not available

Not available

Playback after quick chargeiClaimed music playback after quick_charge_min of charging. Source conditions apply.

Not available

Not available

Charging input ratingiPublished speaker input voltage and current. An adapter rating alone does not establish device input.

Not available

Not available

Max charging inputiPublished maximum charging input. USB audio power requirements and adapter output are separate.

Not available

Not available

USB Power Delivery charging

Not available

Not available

Charges other devices

Not available

Not available

Max power-bank outputiPublished power delivered by the speaker to another device. Output voltage and current belong in the source note.

Not available

Not available

Wireless chargingiThe speaker battery can be charged wirelessly. Wireless power output to another device is separate.

Not available

Not available

Durability

None of 5 known

Dust and water ratingiExact published IP rating. Keep separate ratings, such as IP68 and IP69, as separate entries.

Not available

Not available

Floats

Not available

Not available

Drop resistanceiExplicit maker claim or defined drop test. Do not infer from rugged wording.

Not available

Not available

Drop test heightiMaker-published tested height. Surface and conditions belong in source notes.

Not available

Not available

Carry featuresiPublished handles, straps, carabiners or wheels.

Not available

Not available

Measured

None of 6 known

Playback time (measured)iReviewer-measured playback per charge. Volume, lighting, sound mode, firmware and connection belong in the source note.

Not available

Not available

Max sound pressure (measured)iReviewer-measured maximum SPL. Distance, test method and power source belong in source notes.

Not available

Not available

Low-frequency extension (measured)iReviewer-measured low-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

High-frequency extension (measured)iReviewer-measured high-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

Audio latency (measured)iReviewer-measured source-to-speaker latency. Source device, app, codec, firmware and connection belong in source notes. App compensation may affect results.

Not available

Not available

Full charge time (measured)iReviewer-measured time from empty to full. Power adapter and method belong in the source note.

Not available

Not available

Dimensions and weight

3 of 3 differ

DimensionsiSpeaker body width, height and depth on explicitly identified axes. Unlabeled tuples do not establish axis meanings. Handle, strap and orientation conditions belong in the source note.

Width260Height170Depth150mm(10.2 × 6.7 × 5.9 in)1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026The product details block prints 260 x 170 x 150 mm. The hardware table labels the same numbers as width 170, height 150 and depth 260 mm. The printed order is stored, as for Acton IV. LDLC labels width 260, height 170 and depth 150. This is a conflict in the maker page.10Retailer pageldlc.com/en/product/PB00503434.htmlRead 20 October 2026Retailer spec labels width 260 mm, height 170 mm and depth 150 mm, with weight 2.85 kg. Manufacturer reference ACTON3BTBK.

Width260Height171Depth150mm(10.2 × 6.7 × 5.9 in)1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026The product details block prints 260 x 171 x 150 mm. The hardware table labels the same numbers as width 171, height 150 and depth 260 mm, in the German and UK pages too. That order does not match the maker's own Stanmore IV table, where width, height and depth follow the printed order. LDLC labels width 260, height 171 and depth 150, and TechRadar prints 260 x 171 x 150 mm. The printed order is stored. This is a conflict in the maker page.9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-acton-iv-reviewRead 14 October 2026Spec table prints 10.24 x 6.73 x 5.91 inches / 260 x 171 x 150 mm.13Retailer pageldlc.com/en/product/PB00747535.htmlRead 14 October 2026Retailer spec labels width 260 mm, height 171 mm and depth 150 mm, with weight 2.65 kg.

WeightiSpeaker mass including its battery. Excludes packaging, charger and removable carry accessories unless the source states otherwise.

2,850g(6.3 lb)1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Weight 2.85 kg / 6.28 lb.

2,650g(5.8 lb)1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Weight 2.65 kg / 5.84 lb.

Body materials

Leather-like material1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026FAQ: all Marshall products are vegan-friendly and only leather-like material is used. The maker does not name the material further.

MDF cabinet, PU leather covering1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026MDF cabinet made from FSC 100%-certified material. The covering is leather-like material, named PU leather in the maker's launch release.5Press releasegroup.marshall.com/2026/07/07/marshall-unveils-next-generation-acton-iv-and-stanmore-iv-speakers-for-the-homeRead 14 October 2026Release names signature PU leather wrapping and an MDF cabinet from FSC 100%-certified wood.

Certifications

1 of 1 differ

FCC IDs

Not available

Not available

Other certifications

Not available

FSC 100% certified wood for the MDF cabinet (FSC C225755)1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026FSC 100% certified wood (FSC C225755). The claim applies only to the wood cabinet.

In the box

1 of 1 differ

In the box

Acton III speaker, User manual and legal and safety information, Mains lead1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Box contents: Acton III speaker, user manual and legal and safety information, mains lead.

Acton IV speaker, Mains lead, Quick start guide, Legal and safety information1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Box contents: Acton IV speaker, mains lead, quick start guide, legal and safety information.

Links

Not compared

Product page

www.marshall.com/us/en/product/acton-iii1Maker product pagemarshall.com/us/en/product/acton-iiiRead 20 October 2026Maker's US product page, Black colour selected (pid 1006008).

www.marshall.com/us/en/product/acton-iv1Maker product pagemarshall.com/us/en/product/acton-ivRead 14 October 2026Maker's US product page for Acton IV.

Spec sheet

Not available

Not available

Manual

assets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdf2Maker product pagemarshall.com/us/en/support/speakers/support-for-acton-iiiRead 20 October 2026Documents section links the full online manual.3Owner's manualassets.ctfassets.net/javen7msabdh/rk9IngkjyhsC6mtEdeV8o/dcf160d14cddc030bc37534e1daf78e5/Marshall-Acton-III-User-Manual_EN.pdfRead 20 October 2026Full online manual, English first, many languages in one PDF.

assets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdf3Owner's manualassets.ctfassets.net/javen7msabdh/2q5fFgyvxRLfv92NLj86Jz/0a4d833ac4fa00292ac253d488d5b7b9/Marshall_Acton_IV_OLM_260414_R1_2.pdfRead 14 October 2026Full online manual, 260414 R1.2, English first. Combined PDF with many languages.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

0 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

2years4Maker product pagemarshall.com/us/en/policies/warrantyRead 20 October 2026US market. Marshall's policy gives a two-year limited warranty on speakers bought from marshall.com or a Marshall authorized dealer in the United States, counted from purchase or delivery. The support page says one year for all products and an exclusive two years for marshall.com purchases. So two years is certain only for marshall.com purchases.5Maker product pagemarshall.com/us/en/support/warrantyRead 20 October 2026Support page: all products carry a 1-year warranty, and an exclusive 2-year warranty applies to speakers bought online at marshall.com.

2years14Maker product pagemarshall.com/us/en/policies/warrantyRead 14 October 2026US market. Marshall's policy of 2025-02-13 gives a two-year limited warranty on speakers bought from marshall.com or a US authorized dealer, counted from purchase or delivery. The maker's support page says one year for all products and an exclusive two years for purchases on marshall.com. The two pages differ for dealer purchases, so two years applies to marshall.com purchases only. Statutory rights are excluded.15Maker product pagemarshall.com/us/en/support/warrantyRead 14 October 2026Support page: all products carry a 1-year warranty, and speakers bought online at marshall.com carry an exclusive 2-year warranty.

Both are also in the API. Back to all wireless speakers.