Wireless speakers / Compare

Amazon Echo Dot Max vs Marshall Acton IV

A

Product A: Amazon

Echo Dot Max

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B

Product B: Marshall

Acton IV

43 of 96 known

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Only differences

AAmazon Echo Dot Max

BMarshall Acton IV

General

6 of 8 differ

Series

Echo Dot1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Amazon sells it as part of the Echo Dot line. It is a larger and pricier model than the Echo Dot (5th Gen).

Not available

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

MA49CA2Maker product pagedigprjsurvey.amazon.co.uk/csad/help/node/TPx5qo6zqds5Hoyjo3Read 20 October 2026Amazon Safety and Compliance for Echo Dot Max (UK version): model number MA49CA. The US version of the page lists the same model.

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

Not available

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.

30 September 20256Press releaseaboutamazon.ca/news/devices/amazon-unveils-its-all-new-echo-lineup-with-premium-audio-and-striking-designRead 20 October 2026Amazon's 2025 devices event, 30 September 2025. The Canadian CAD price on that page is not stored.

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 pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Amazon US lists the Echo Dot Max (2025 release) for sale. Amethyst, Glacier White and Graphite are the color options, with a Stereo (Pack of 2) option.

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.

Amazon Echo Dot (5th Gen)8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: the Echo Dot (5th Gen) is the predecessor to the Echo Dot Max. Amazon prices the Max higher, so the 5th Gen stays on sale next to it.

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.

Not available

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.

$99.995Press releaseaboutamazon.com/news/devices/amazon-new-echo-devices-alexa-plusRead 20 October 2026Amazon announcement: Echo Dot Max is $99.99 in the US. US prices exclude sales 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.

€109.9911Reviewmobiflip.de/amazon-echo-dot-max-test/ampRead 20 October 2026German test: the Echo Dot Max costs 109.99 EUR at market start, which includes VAT. hifi.de gives the same list price of 109.99 EUR. The German sale started after the US sale.12Reviewhifi.de/test/amazon-echo-dot-max-test-252742Read 20 October 2026Spec table: list price 109.99 EUR, street price about 90 EUR. Germany, VAT included.

€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, DE9Reviewexpertreviews.co.uk/technology/headphones-audio/amazon-echo-dot-max-reviewRead 20 October 2026UK review with a UK price of about 100 GBP.11Reviewmobiflip.de/amazon-echo-dot-max-test/ampRead 20 October 2026German price and sale. hifi.de's test of 28 December 2025 lists German retailers.

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

Graphite, Glacier White, Amethyst1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Color selector: Amethyst, Glacier White, Graphite. Retailer and review pages use the same three names.

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 pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026The page sells it for living rooms and medium-sized spaces. It runs from a power adapter and has no battery, so it is a home speaker.

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

Audio

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

Mono1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Technical Details: Playback Channels is Two-way mono. SoundGuys confirms one mono speaker that pairs for stereo.8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: a mono speaker. You can pair two together for stereo.

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.

AAmazon Echo Dot Max

Driver type	Count	Diameter (mm)
Woofer	1	63.5
Tweeter	1	20.32

Source1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Technical Details: 1x 0.8 inch tweeter, 1x 2.5 inch woofer. Stored as the exact metric conversion of the maker's inches. Reviewers round them to 64 mm and 20 mm. Per-driver power is not published.9Reviewexpertreviews.co.uk/technology/headphones-audio/amazon-echo-dot-max-reviewRead 20 October 2026Review: a 0.8 in tweeter and 2.5 in woofer. The woofer fires upwards and slightly rearwards and the tweeter fires forwards and down.10Reviewtechradar.com/home/smart-home-hubs/echo-dot-max-review-amazons-best-mid-range-speaker-but-not-by-muchRead 20 October 2026Review: a single 20mm tweeter and a 6cm woofer. This is a rounded figure and the maker's inches are used for the diameter.

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.

Not available

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.

53Hz1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Technical Details list Audio Bandwidth as 53 Hz to 16 kHz at volume 6. No tolerance is published. This is the acoustic bandwidth, not a Bluetooth range.

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.

16kHz1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Audio Bandwidth 53 Hz to 16 kHz at volume 6. See the lower limit note.

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.

Yes8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: a simple three-band EQ for bass, midrange and treble in the Alexa app.9Reviewexpertreviews.co.uk/technology/headphones-audio/amazon-echo-dot-max-reviewRead 20 October 2026Review: the Alexa app has an equaliser, group options and a stereo pair for two Echo Dot Max.

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.

38Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Three bands: bass, midrange, treble.

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 pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Technical Details: Audio Signal Processing lists Automatic Room Adaptation. The feature bullets say it adapts to your space and fine-tunes playback.5Press releaseaboutamazon.com/news/devices/amazon-new-echo-devices-alexa-plusRead 20 October 2026Sound automatically adapts to your space.7Press releaseaboutamazon.com/news/devices/amazon-echo-dot-max-echo-studio-sound-quality-bassRead 20 October 2026The device analyzes what it plays, detects how the room changes the sound and rebalances its output without manual calibration.

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.

Yes1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Feature bullets: pairs with a second Echo Dot Max for richer sound. The Stereo (Pack of 2) option sells two.3Maker product pagedigprjsurvey.amazon.com/csad/help/node/GZRS8FRPWWFPPZ63Read 20 October 2026Compatible Echo Devices for Stereo Pairs: the Echo Dot Max pairs with another Echo Dot Max or with an Echo Sub.8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: pair two Echo Dot Max for proper stereo.9Reviewexpertreviews.co.uk/technology/headphones-audio/amazon-echo-dot-max-reviewRead 20 October 2026Review: form a stereo pair with two of these speakers.12Reviewhifi.de/test/amazon-echo-dot-max-test-252742Read 20 October 2026Spec table: stereo mode available with a second speaker.

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.

Alexa Multi-Room Music, Alexa Home Theater4Maker product pagedigprjsurvey.amazon.com/csad/help/node/GYYMWGZJUK28FEN6Read 20 October 2026Alexa Home Theater Device Compatibility Guide: the Echo Dot Max works with Fire TV Cube (3rd Gen) and Fire TV Stick 4K models in Configuration 1.5Press releaseaboutamazon.com/news/devices/amazon-new-echo-devices-alexa-plusRead 20 October 2026Up to five Echo Studio or Echo Dot Max devices work with compatible Fire TV sticks for surround sound through Alexa Home Theater.

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.

54Maker product pagedigprjsurvey.amazon.com/csad/help/node/GYYMWGZJUK28FEN6Read 20 October 2026Configuration 1 allows up to five Echo speakers plus one Echo Sub. The five are Echo Dot Max or Echo Studio (2025 release) units and must match. This is the Alexa Home Theater group. No maximum is published for Multi-Room Music groups.

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

11 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.

Yes8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 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.

5.31Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Technical Details Bluetooth row: Bluetooth Low Energy 5.3. SoundGuys, Expert Reviews and hifi.de all name Bluetooth 5.3.12Reviewhifi.de/test/amazon-echo-dot-max-test-252742Read 20 October 2026Spec table: Wi-Fi and Bluetooth 5.3.

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.

SBC8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: Bluetooth audio uses only the SBC codec.

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

A2DP, AVRCP1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Bluetooth row: A2DP audio streaming to the speaker and from the speaker to a Bluetooth speaker, and AVRCP for voice control of connected phones.

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.

Not available

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.

Not available

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.

Not available

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.

Yes1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Technical Details: Wi-Fi 6E (IEEE 802.11ax).

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.

802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026The page names IEEE 802.11ax. The Amazon compliance page lists 802.11a/b/g/n/ac/ax.2Maker product pagedigprjsurvey.amazon.co.uk/csad/help/node/TPx5qo6zqds5Hoyjo3Read 20 October 2026Wi-Fi standards 802.11a/b/g/n/ac/ax, with 2.4 GHz, 5 GHz and 6 GHz bands.

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.

No8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: no wired inputs, including no 3.5mm jack, USB audio or Ethernet port.

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.

AAmazon Echo Dot Max

Connector	Count	Role
DC power	1	Power input for the included 22 W adapter (18 V DC, 1.23 A)

Source2Maker product pagedigprjsurvey.amazon.co.uk/csad/help/node/TPx5qo6zqds5Hoyjo3Read 20 October 2026No ports are listed on the page. The included adapter PA42EU is rated 100 to 240 V AC input and 18 V DC, 1.23 A, 22 W output. The device electrical rating is 18.0 V, 1.23 A. The power socket is confirmed by TechRadar.9Reviewexpertreviews.co.uk/technology/headphones-audio/amazon-echo-dot-max-reviewRead 20 October 2026Review: no physical connections except the power. The 3.5 mm jack is absent.10Reviewtechradar.com/home/smart-home-hubs/echo-dot-max-review-amazons-best-mid-range-speaker-but-not-by-muchRead 20 October 2026Review: on the rear is a single power port, with no 3.5mm jack. PCWorld also describes a barrel-shaped power socket.

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

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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.

Yes8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review FAQ: supports Alexa calling, including calls to other Alexa devices and the Alexa app. These calls run through Alexa, not through a phone over Bluetooth. Availability depends on region and account.

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.

Amazon Alexa, Alexa+1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Alexa is built in. The page says Designed for Alexa+. Alexa+ availability depends on country and account.

Not available

Controls

Volume down button, Microphone off button, Volume up button, Tap gestures to pause music and snooze alarms8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: physical buttons for volume up, volume down and microphone mute, with the mute button in the middle. Tap gesture support through the accelerometer.9Reviewexpertreviews.co.uk/technology/headphones-audio/amazon-echo-dot-max-reviewRead 20 October 2026Review: front controls to mute the mic and change volume, plus tap gestures to pause music or snooze an alarm.

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

Amazon Alexa1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026System requirements: works with the Alexa app.

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

App platforms

iOS, Android, Fire OS1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026System requirements: the Alexa app supports Fire OS, Android, iOS and web browsers. The web browser is not an app and is not stored.

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

Not available

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

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Lighting modes

Not available

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Smart home

None of 3 known

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

Not available

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

Not available

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

Not available

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Battery and charging

0 of 17 differ

Built-in battery

No8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review: no built-in battery. It runs on AC power only.

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

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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

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Quick charge duration

Not available

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

Not available

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

Not available

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

Not available

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USB Power Delivery charging

Not available

Not available

Charges other devices

Not available

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

Not available

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

Not available

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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

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

Not available

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Carry featuresiPublished handles, straps, carabiners or wheels.

Not available

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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

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Dimensions and weight

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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.

Width108.7Height99.2Depth108.6mm(4.3 × 3.9 × 4.3 in)1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Size: 4.27 x 4.27 x 3.9 in (108.7 mm x 108.6 mm x 99.2 mm). The compare table labels it 4.27 in W x 4.27 in D x 3.9 in H, so width 108.7, depth 108.6 and height 99.2 mm. hifi.de labels the first two as width and height, which does not match Amazon's labels.

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.

505.3g(1.1 lb)1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Weight: 17.82 oz (505.3 g). The page notes that actual size and weight may vary by manufacturing process. Expert Reviews, SoundGuys and hifi.de agree.8Reviewsoundguys.com/amazon-echo-dot-max-review-bigger-dot-better-hub-152545Read 20 October 2026Review spec table: 17.8 oz / 505.3 g.9Reviewexpertreviews.co.uk/technology/headphones-audio/amazon-echo-dot-max-reviewRead 20 October 2026Review: 505.3 g.12Reviewhifi.de/test/amazon-echo-dot-max-test-252742Read 20 October 2026Spec table: 505 g.

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

3D knit fabric7Press releaseaboutamazon.com/news/devices/amazon-echo-dot-max-echo-studio-sound-quality-bassRead 20 October 2026Amazon audio engineers: the exterior uses a new 3D knit fabric designed for acoustic transparency.

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

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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

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In the box

Echo Dot Max (2025 release), Power adapter (22 W), Quick start guide1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Included in the box: Echo Dot Max (2025 release), power adapter (22 W) and quick start guide.

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.amazon.com/dp/B0D6SX8VLQ1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Amazon US product page.

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

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Manual

Not available

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

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Warranty

1 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.

1year1Maker product pageamazon.com/dp/B0D6SX8VLQRead 20 October 2026Technical Details: 1-year limited warranty and service included for the US. Optional 2 and 3-year extended warranties are sold separately.

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.