Soundbars / Compare

Marshall Heston 120 vs Sonos Arc

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Product A: Marshall

Heston 120

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Product B: Sonos

Arc

57 of 98 known

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Only differences

AMarshall Heston 120

BSonos Arc

Audio system

7 of 17 differ

System channel configurationiMaker-stated channel layout of the exact package, such as 5.1.2. This can include virtual channels. It is not a count of physical drivers. Optional speakers do not count.

5.1.21Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Configuration 5.1.2 in the maker audio specification.

5.0.212Press articletechradar.com/reviews/sonos-arcRead 10 October 2026Review lists the speaker layout as 5.0.2 with 11 Class-D amplifiers, 8 woofers and 3 tweeters. This is the maker channel layout and not a driver count.15Reviewwhathifi.com/reviews/sonos-arcRead 10 October 2026Review states Sonos refers to the Arc arrangement as 5.0.2.16Reviewrtings.com/soundbar/reviews/sonos/arcRead 10 October 2026Public review lists the channels as 5.0.2.

Physical drivers in the packageiCount of physical active speaker drivers across the supplied bar, subwoofer and rear speakers. Passive radiators, microphones and virtual channels do not count. A coaxial driver, such as KEF Uni-Q, counts once, as makers count it.

111Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 202611 drivers facing in different directions per the maker: 2 rear-facing subwoofers, 2 midwoofers, 2 tweeters and 5 full-range drivers. 4 passive radiators are not counted. No separate subwoofer or rear speakers are supplied.

111Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026All eleven drivers are in the bar. No subwoofer or rear speaker is supplied.13Press articletechradar.com/news/sonos-arc-enters-the-stratosphere-with-its-first-dolby-atmos-soundbarRead 10 October 2026News: an array of 11 drivers, eight mid-range woofers and three dedicated tweeters.

Physical drivers in the bariCount of physical active speaker drivers in the soundbar alone. Passive radiators and virtual channels do not count. A coaxial driver, such as KEF Uni-Q, counts once, as makers count it.

111Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Same 11 drivers. All are in the bar.

111Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker states eleven internal speakers, made of three tweeters and eight woofers on the Tech Specs tab.

Up-firing drivers in the packageiPhysical active drivers explicitly firing upwards across the supplied package. Virtual height channels and passive radiators do not count. A driver that fires upwards only when the bar is wall mounted is not counted.

21Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Maker page: up-firing tweeters project sound overhead. The spec table lists 2 tweeters of 0.8 in.

Not available

Driver layoutiPublished physical driver layout for the supplied components. A row names one driver type in one component. Do not translate channel count into driver count.

AMarshall Heston 120

Component	Driver type	Count	Diameter (mm)	Orientation
Soundbar	Full-range driver	5	50.8	Not available
Soundbar	Midwoofer	2	76.2	Not available
Soundbar	Tweeter	2	20.32	Up-firing
Soundbar	Subwoofer, 2 in x 5 in	2	Not available	Rear-facing

Source1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Spec table: subwoofers 2 x 2 in by 5 in, midwoofers 2 x 3 in, tweeters 2 x 0.8 in, full range 5 x 2 in. Inch sizes are converted exactly. The page says the subwoofers face the rear and the tweeters fire up. The midwoofers are described as optimized for lateral sound and side-firing drivers reflect sound off the walls, so their direction is not stored.

BSonos Arc

Component	Driver type	Count
Soundbar	Silk dome tweeter	3
Soundbar	Elliptical woofer	8

Source1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs: three silk-dome tweeters and eight elliptical woofers. Driver sizes and orientations are not published.

Separate subwoofer includediA separate powered subwoofer is supplied with the reference package. A built-in woofer does not count.

No1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Two built-in rear-facing subwoofers and four passive radiators. A SUB OUT port connects an optional active subwoofer.

No1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Complete package contents on the Tech Specs tab. Separate Sonos subwoofers are optional.

Included subwoofer connectioniAudio link used by the supplied separate subwoofer. Wireless subwoofers can still require an AC power cable.

Not available

Not available

Included subwoofer driver diameteriPublished diameter of an active driver in the supplied separate subwoofer. Do not use enclosure size or passive radiator size.

Not available

Not available

Rear speakers includediCount of separate rear speaker enclosures supplied with the reference package. Detachable bar ends count when usable as rears. Optional rear speakers do not count.

01Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026No rear speakers are in the box.

02Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Package contents list no rear speakers. Rear speakers are optional.

Included rear speaker connectioniAudio link to the supplied rear speaker enclosures. Their power connection is separate.

Not available

Not available

Detachable rear speakersiThe bar has supplied detachable end sections usable as separate rear speakers.

No1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026The bar has no detachable end sections.

No2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Single-piece bar. Package contents list no detachable sections.

Compatible optional subwoofersiMaker-named compatible additional subwoofer models. These do not contribute to the reference package layout, dimensions or measurements.

Heston Sub 2001Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026The maker sells Heston 120 together with Heston Sub 200 as a bundle. The page also says SUB OUT takes an active subwoofer.

Sub (Gen 1), Sub (Gen 2), Sub (Gen 3), Sub 4, Sub Mini1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Support page for Sub compatibility lists Arc with all Sub models in certain configurations. Sub Mini support is listed in the next source.8Maker product pagesupport.sonos.com/en-us/article/sonos-products-that-support-sub-miniRead 10 October 2026Arc is listed under Home Theater products that support Sub Mini.9Maker product pagesupport.sonos.com/en-us/article/set-up-your-sonos-subRead 10 October 2026Sub (Gen 1, 2 and 3) and Sub 4 are compatible with Arc. Arc works with all Sub models in certain configurations. Optional subwoofers are not supplied.

Compatible optional rear speakersiMaker-named compatible additional rear speaker models. These do not contribute to the reference package layout, dimensions or measurements.

Not available

Not available

Total RMS audio output poweriMaker-stated RMS or rated continuous amplifier output for the exact supplied package. Peak or unspecified maximum claims do not qualify. Distortion, load and rating conditions belong in the source note. Power consumption is separate.

Not available

Not available

Total peak audio output poweriMaker-stated peak or maximum amplifier output for the exact supplied package. This is separate from RMS or continuous output and from electrical consumption. Rating conditions belong in the source note.

150W1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Total audio power output 150 W (Peak). The same table lists 11 class D amplifiers, 2 x 50 W and 9 x 30 W, which add up to more than 150 W. The maker does not explain the difference, so only the stated peak total is stored. No RMS figure is published.

Not available

Published frequency response lower limitiMaker-published lower limit for the exact supplied package. Tolerance and test conditions belong in the source note. Reviewer extension measurements are separate.

40Hz1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Frequency range 40 Hz to 20 kHz. Tolerance is not stated. Maximum sound pressure level is stated as 95 dB and is not stored.

Not available

Published frequency response upper limitiMaker-published upper limit for the exact supplied package. Tolerance and test conditions belong in the source note.

20kHz1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

Not available

Audio formats

6 of 9 differ

Dolby AtmosiExplicit support for Dolby Atmos playback. Transport codec and connection restrictions belong in source notes.

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker states Dolby Atmos with upward-firing drivers. Atmos over Dolby Digital Plus works on ARC or eARC. Dolby TrueHD and MAT Atmos need eARC.4Maker product pagesupport.sonos.com/en-us/article/listen-to-dolby-atmos-audio-from-your-tv-on-sonosRead 10 October 2026Arc supports Dolby Atmos playback in a Home Theater setup over HDMI ARC or eARC. Most Atmos plays over ARC with Dolby Digital Plus. Lossless Atmos with Dolby TrueHD needs eARC.

DTS:XiExplicit support for DTS:X playback. Virtual surround processing alone does not establish DTS:X decoding.

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Immersive audio formats supported: Dolby Atmos, DTS-X. The page FAQ says both Dolby Atmos and DTS:X are supported.

No1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026The maker format list names only DTS Digital Surround for DTS. DTS:X is not listed, so it is stored as not supported.

Supported audio formatsiAudio formats explicitly decoded by the device. Codec and connection restrictions belong in source notes. Bluetooth codecs and music-file formats are separate.

Dolby Atmos, DTS:X1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Only the immersive formats are listed. Other decoded formats are not published.

Stereo PCM, Dolby Digital, DTS Digital Surround, Dolby Digital Plus, Dolby Atmos (Dolby Digital Plus), Dolby TrueHD, Dolby Atmos (Dolby TrueHD), Multichannel PCM, Dolby Multichannel PCM, Dolby Atmos1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Home Theater Audio Formats list on the Tech Specs tab. eARC is required for Dolby Atmos (MAT), Dolby TrueHD, Dolby Atmos via TrueHD, Multichannel PCM and Dolby Multichannel PCM. The maker notes DTS Digital Surround is not an indication of a licensed decoder.

Audio formats by connectioniExplicitly supported audio decoding combinations. Max input channels counts decoded input audio channels, including LFE. A 5.1 layout has 6 channels and 7.1 has 8. Output speaker layouts and Atmos objects do not count. Atmos over Dolby Digital Plus and over Dolby TrueHD are separate rows. Format support on one input does not prove support on another.

AMarshall Heston 120

Not available

BSonos Arc

Connection	Format
HDMI ARC	Stereo PCM
HDMI ARC	Dolby Digital
HDMI ARC	DTS Digital Surround
HDMI ARC	Dolby Digital Plus
HDMI ARC	Dolby Atmos (Dolby Digital Plus)
HDMI eARC	Stereo PCM
HDMI eARC	Dolby Digital
HDMI eARC	DTS Digital Surround
HDMI eARC	Dolby Digital Plus
HDMI eARC	Dolby Atmos (Dolby Digital Plus)
HDMI eARC	Dolby TrueHD
HDMI eARC	Dolby Atmos (Dolby TrueHD)
HDMI eARC	Multichannel PCM
HDMI eARC	Dolby Multichannel PCM
HDMI eARC	Dolby Atmos

Source1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Rows follow the maker format list and its eARC-required footnote. ARC carries stereo PCM, Dolby Digital, DTS Digital Surround, Dolby Digital Plus and Atmos over Dolby Digital Plus. eARC adds the lossless and MAT rows. Channel limits are not published.3Maker product pagesupport.sonos.com/en-us/article/supported-home-theater-audio-formatsRead 10 October 2026Sonos Arc is listed for Dolby Digital Plus and Dolby Atmos over Dolby Digital Plus. Dolby TrueHD, Atmos over TrueHD, Atmos MAT, Multichannel PCM and Dolby Multichannel PCM require an eARC connection.

Music file formatsiPublished local or network music-file playback formats. Playback route and app restrictions belong in source notes.

Not available

MP3, MP4, M4A, WMA, AAC, HE-AAC, OGG, FLAC, ALAC, AIFF, WAV5Maker product pagesupport.sonos.com/en-us/article/supported-audio-formats-for-sonos-music-libraryRead 10 October 2026Local music library playback through the current Sonos app. Mono or stereo files. This is separate from the HDMI home theater formats.

Max wired audio sample rateiHighest explicitly published supported sample rate for decoded wired audio input. Name the exact HDMI, ARC, eARC or optical connection and codec in source notes. This is the published route limit, not proof of a device-wide maximum across all inputs. Local or network music-file limits and Bluetooth do not qualify. A chipset limit is not device evidence.

Not available

Not available

Max music file sample rateiHighest explicitly published supported local or network music-file sample rate. Name the playback route and file format in source notes. This is the published route and format limit, not proof of a device-wide maximum across all music formats. Wired HDMI or optical input and Bluetooth are separate.

Not available

48kHz5Maker product pagesupport.sonos.com/en-us/article/supported-audio-formats-for-sonos-music-libraryRead 10 October 2026Maker states local library files up to 48 kHz. Not a claim for HDMI input rates.

Max wired audio bit depthiHighest explicitly published supported bit depth for decoded wired audio input. Name the exact HDMI, ARC, eARC or optical connection and codec in source notes. This is the published route limit, not proof of a device-wide maximum across all inputs. Local or network music-file limits and Bluetooth do not qualify.

Not available

Not available

Max music file bit depthiHighest explicitly published supported local or network music-file bit depth. Name the playback route and file format in source notes. This is the published route and format limit, not proof of a device-wide maximum across all music formats. Wired HDMI or optical input and Bluetooth are separate.

Not available

24bits5Maker product pagesupport.sonos.com/en-us/article/supported-audio-formats-for-sonos-music-libraryRead 10 October 2026FLAC and ALAC up to 24-bit. AIFF and WAV are limited to 16-bit. FLAC and ALAC are limited to 16-bit in the Sonos S1 Controller app.

Connectivity

11 of 17 differ

Ports on the bariPhysical connectors on the soundbar alone. Record input, output, ARC or eARC, service, subwoofer and power roles explicitly. Count identical connectors per row. Component connectors are described in source notes.

AMarshall Heston 120

Connector	Count	Version	Role
HDMI	1	2.1	HDMI 1 (TV), video output and eARC or ARC audio return
HDMI	1	2.1	HDMI 2 (IN), external source routed through HDMI 1 to the TV
RCA	2	Not available	Stereo audio input, left and right
Subwoofer	1	Not available	SUB OUT for an external active subwoofer, RCA mono
USB-C	1	Not available	Power output, 5 V 500 mA
Ethernet	1	10/100 Mbps	LAN
AC power	1	Not available	Mains power input

Source2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026Back panel: LAN, HDMI 2 (IN), HDMI 1 (TV / EARC / ARC), USB-C power output 5 V/500 mA, RCA input left and right, SUB OUT, mains power input. There is no optical input.

BSonos Arc

Connector	Count	Version	Role
HDMI	1	Not available	TV connection for HDMI ARC or eARC audio
Ethernet	1	10/100 Mbps	Network connection
AC power	1	Not available	Mains power input

Source2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Connector panel: one HDMI port, one Join button, one Ethernet port and the AC input. The optical audio adapter attaches to the HDMI cable and is not a native socket. HDMI is a TV audio connection and not a source input.

HDMI ARC

Yes2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026HDMI 1 (TV / EARC / ARC).

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs HDMI eARC entry. Connects to the TV HDMI eARC or ARC port with the included HDMI cable.

HDMI eARC

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026HDMI spec: HDMI 2.1 eARC. HDMI 1 (TV / eARC / ARC) is the TV connection.

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs HDMI eARC entry and feature list.

HDMI-CEC

Not available

Yes2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026The guide describes TV control through the HDMI ARC link. See the TV requirements article for the CEC condition.10Maker product pagesupport.sonos.com/en-us/article/tv-requirements-for-sonos-home-theater-speakersRead 10 October 2026Arc needs a TV with an HDMI ARC port to use CEC or voice control of the TV. CEC control is unavailable through the optical adapter.

HDMI video passthroughiCan pass video from a dedicated HDMI source input to a television output. ARC or eARC alone does not qualify.

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

No15Reviewwhathifi.com/reviews/sonos-arcRead 10 October 2026Review lists no HDMI pass-through ports as a drawback.

Video passthrough modesiPublished supported passthrough combinations, not inferred maxima at untested resolutions. State chroma, bit depth, HDR and firmware restrictions in source notes.

AMarshall Heston 120

Width (px)	Height (px)	Refresh rate (Hz)
3840	2160	120

Source1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026HDMI spec: 4K 120 Hz. Chroma, bit depth and HDR combinations are not published.

BSonos Arc

Not available

HDR passthrough formats

Dolby Vision1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026HDMI spec: Supports Dolby Vision. Other HDR formats are not listed.

Not available

VRR passthrough

Not available

Not available

ALLM passthrough

Not available

Not available

HDCP versioniHighest HDCP version the maker states for an HDMI port of the soundbar, such as 2.3. When the source inputs and the TV output differ, the source input version is stored. A bar with no HDMI input stores the version of its TV output, also when that output carries video from a built-in streaming player.

1.41Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026HDMI spec: HDCP 1.4.

Not available

Bluetooth audio inputiCan receive audio from a Bluetooth source. A Bluetooth remote alone does not qualify.

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

No14Reviewsoundguys.com/sonos-arc-review-118429Read 10 October 2026Review FAQ states the Sonos Arc does not have Bluetooth.15Reviewwhathifi.com/reviews/sonos-arcRead 10 October 2026Review spec table lists Bluetooth as No.16Reviewrtings.com/soundbar/reviews/sonos/arcRead 10 October 2026Public review verdict lists no Bluetooth support. Membership-locked measurements were not used.

Bluetooth versioniPublished version of the soundbar audio connection. An optional remote or detachable rear can use a different version.

5.31Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

Not available

Bluetooth audio codecsiExplicitly supported codecs for received Bluetooth audio. A Bluetooth version alone does not establish a codec.

SBC, AAC, LC31Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Codecs row lists SBC, LC3, AAC and further formats. Only the Bluetooth codecs are stored. The press release says Bluetooth LE audio with Auracast is available.

Not available

Wi-Fi

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs WiFi entry.

Wi-Fi standardiPublished Wi-Fi standards for the soundbar, written as 802.11 names without IEEE, such as "802.11a/b/g/n/ac/ax". A Wi-Fi generation is written as its standard, so Wi-Fi 5 is "802.11ac" and Wi-Fi 6 is "802.11ax". Do not infer the standard from frequency bands.

802.11ax1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Wireless connectivity: Bluetooth 5.3, Wi-Fi 6. Bands are not published.

802.11b/g/n6Maker product pagesupport.sonos.com/en-us/article/supported-wifi-modes-and-security-standards-for-sonos-productsRead 10 October 2026Dedicated support list names Arc under 802.11n, on top of the 802.11b/g baseline for all Sonos products. The 802.11n mode needs the current Sonos app and is not available after S1 setup.

Wi-Fi bandsiPublished radio bands, such as 2.4 GHz and 5 GHz.

Not available

2.4 GHz6Maker product pagesupport.sonos.com/en-us/article/supported-wifi-modes-and-security-standards-for-sonos-productsRead 10 October 2026Arc is not in the 5 GHz list. The product guide states 2.4 GHz routers.

Built-in Ethernet speediRated speed of the built-in port. An optional adapter does not count.

100Mbps1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Ethernet spec: 10 / 100 MBit.

100Mbps1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs Ethernet entry: 10/100 port.

Streaming and control

6 of 8 differ

Streaming protocolsiNamed network playback protocols, such as AirPlay 2, Google Cast, Spotify Connect and Tidal Connect. Bluetooth is separate.

AirPlay 2, Google Cast, Spotify Connect, Tidal Connect1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

AirPlay 21Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Feature list names Apple AirPlay 2. Other service-level connect protocols are not stored.

Voice assistantsiNamed assistants supported by the soundbar. Built-in and external-device routes and market restrictions belong in source notes.

Not available

Sonos Voice Control, Amazon Alexa, Google Assistant1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs Voice entry: works with Sonos Voice Control, Amazon Alexa and Google Assistant. Availability varies by country and language.

Built-in microphoneiPhysical microphone in the bar for voice or calibration. An external setup phone or remote microphone does not count.

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Microphones: 2 pieces used for room calibration.

Yes2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Specifications: four microphone array for voice control and Trueplay.

Microphone mute controliA physical control on the soundbar explicitly disables its built-in voice microphone. State whether this is an electrical switch or software-controlled button when known.

Not available

Yes2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Specifications state the LED is hardwired to the voice microphones for privacy control. The control is a capacitive touch button on the bar and not a rear mechanical switch.

Companion apps

Marshall1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

Sonos7Maker product pagesupport.sonos.com/en-us/article/sonos-app-requirementsRead 10 October 2026Maker app is named Sonos.

Companion app platforms

Android, iOS2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026The manual points to the Marshall app on Google Play and the App Store.

iOS, iPadOS, Android, Fire OS, macOS, Windows, Web7Maker product pagesupport.sonos.com/en-us/article/sonos-app-requirementsRead 10 October 2026Current app: iOS and iPadOS 18+, Android 10+, Fire OS 7+. Desktop macOS 10.12+ and Windows 8+. Web app in Chrome, Firefox, Safari and Edge. Desktop and web have limited system setup features. Mobile iOS or Android is required for initial setup.

Multiroom audioiCan play synchronised audio with other rooms through a supported network platform. Optional surround expansion alone does not qualify.

Not available

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker describes grouping speakers in different rooms in one Sonos system.

Remote includediA separate remote control supplied with the reference package. Phone apps and TV remotes do not count.

No2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026No remote in the box. The manual says use the TV remote over eARC or the Marshall app.

No1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Package contents list no separate remote. Control uses the TV remote, touch controls, voice or the app.

Sound processing

3 of 7 differ

Sound modes

Music, Movie, Night, Voice1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Movie, Voice, Music and Night modes.

Speech Enhancement, Night Sound1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs Speech Enhancement and Night Sound entries.2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Home theater settings: Speech enhancement and Night sound.

Automatic room calibrationiExplicit acoustic measurement or analysis used to adapt playback to the room. Manual EQ alone does not qualify. Setup phone requirements belong in source notes.

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026The page says the app uses room calibration. Two bar microphones are used.

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Trueplay measures room acoustics with the microphones of an iOS device and tunes the EQ and height channels. Android is not supported for Trueplay on this model.

Room calibration system

Room correction2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026Using room correction: app feature named Room correction.

Trueplay1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker name is Trueplay.

Dialogue enhancementiA dialogue or voice mode counts, also when the maker lists it as an EQ preset.

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Voice mode makes dialogue clear.

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Speech Enhancement setting boosts voice frequencies.

Night mode

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Night mode lowers loud sounds and keeps softer details clear, per the manual.

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Night Sound setting reduces the intensity of loud sounds.

Equalizer controlsiPublished user-adjustable EQ controls. Bass and treble controls are distinct from multi-band EQ.

Bass, Treble1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Bass and treble knob. The Marshall app adjusts EQ for more bass or treble. Band count is not published.

Bass, Treble, Loudness1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs Adjustable EQ entry: bass, treble and loudness in the Sonos app.

TV speaker integrationiNamed features allowing compatible television speakers to play with the bar. TV models and connection requirements belong in source notes.

Not available

Not available

Power

3 of 6 differ

Published operating poweriMaker-published operating electrical consumption of the soundbar alone. Included subwoofer and rear-speaker consumption do not count. Keep workload and method in source notes. Audio amplifier output is separate.

Not available

Not available

Published standby poweriMaker-published non-networked standby consumption of the bar alone. Networked standby and other components are separate.

0.5W2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026Power modes: low power mode, Wi-Fi and Bluetooth disabled, below 0.5 W. Stored as the 0.5 W upper bound.

Not available

Published networked standby poweriMaker-published networked standby consumption of the bar alone. Enabled radio and network conditions belong in source notes.

2W2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026Power modes: network standby below 2.0 W. Stored as the 2.0 W upper bound.

Not available

Power supplyiPublished AC input range or external DC adapter arrangement. Electrical input ratings are not operating consumption.

Not available

100-240 V AC, 50/60 Hz, 3.5 A2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Product guide specifications: auto-switching 100-240 V, 50-60 Hz, 3.5 A AC universal input. This is an input rating, not consumption.

Detachable rear battery lifeiMaker-stated runtime of the supplied detachable rear speakers. Volume, mode and recharge conditions belong in source notes.

Not available

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Detachable rear charge timeiMaker-stated full recharge time of supplied detachable rear speakers. Charging route belongs in source notes.

Not available

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Measured

None of 8 known

Low-frequency extension (measured)iReviewer-measured lower extension for the exact tested package. Test threshold, mode, room correction and configuration belong in source notes.

Not available

Not available

High-frequency extension (measured)iReviewer-measured upper extension for the exact tested package. Test threshold and configuration belong in source notes.

Not available

Not available

Max sound pressure (measured)iReviewer-measured maximum sound pressure. Signal, distance, sound mode and supplied or optional speaker configuration belong in source notes.

Not available

Not available

Frequency response deviation (measured)iReviewer-measured standard error against the stated target. Target, averaging range, preset and test method belong in source notes.

Not available

Not available

Measured latencyiReviewer-measured audio latency. Keep source/TV, firmware, codec, synchronisation correction and exact tested speaker configuration in source notes. Negative offsets are valid when the method reports them.

Not available

Not available

Operating power (measured)iReviewer-measured operating consumption of the soundbar alone. Optional or supplied external speakers do not count. Workload and enabled radio conditions belong in source notes.

Not available

Not available

Standby power (measured)iReviewer-measured bar-only standby consumption. Network state and test conditions belong in source notes.

Not available

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Soundbar weight (measured)iReviewer-measured bar-only weight. Excludes subwoofer, rears, mounting hardware and cables.

Not available

Not available

Dimensions and weight

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Soundbar dimensionsiBar alone in its normal tabletop orientation, without detachable rears, wall brackets or external cables. A source that includes detachable ends must use component_dimensions instead. A size labelled L x W x H, as on Amazon, is width x depth x height.

Width1,100Height76Depth145mm(43.3 × 3 × 5.7 in)1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 20262Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026Physical unit table: width 1100 mm, height 76 mm, depth 145 mm. The product details block lists 1100 x 145 x 76 mm in width, depth, height order.

Width1,141.7Height87Depth115.7mm(44.9 × 3.4 × 4.6 in)2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026Product guide specifications: 3.4 x 45 x 4.5 in (87 x 1141.7 x 115.7 mm), H x W x D. The shop page rounds to 1,142 x 87 x 116 mm.

Soundbar weightiBar alone, without detachable rears, subwoofer, wall brackets or external cables. Source-published masses including detachable ends belong in component_dimensions.

7,040g(15.5 lb)1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 20267040 g.

6,250g(13.8 lb)1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Shop page gives 13.78 lb (6.25 kg), the same as the product guide.

Component dimensions and weightiPublished dimensions and mass for named supplied components, including a bar with detachable rears attached when stated. Each row describes one enclosure, not the pair, unless the component label explicitly states a set. Width, height and depth use normal installed orientation.

Not available

Not available

Package dimensions

Not available

Not available

Package weightiShipping package including supplied components and packaging.

Not available

Not available

Wall mountable

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Compatible with the Heston 120 Wall Mount, sold separately.

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Tech Specs Mounting entry gives a threaded mount socket and the maker sells wall mounts.

In the box

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In the box

Heston 120 TV soundbar, Quick start guide and legal and safety information, Mains lead, HDMI cable1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Box contents: Heston 120 TV soundbar, quick start guide and legal and safety information, mains lead, HDMI cable.

Sonos Arc, Power cord, HDMI cable, Optical audio adapter, Quickstart guide1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Package contents on the guide specifications. The shop Box Contents tab lists the soundbar, power cable, HDMI cable and optical audio adapter.

Wall mount hardware includediSupplied bar mounting brackets or mount. Screws alone do not establish that a complete mount is included.

No1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Wall mount is sold separately. The box contents list has none.

No1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Wall mount kit is sold separately.

HDMI cable included

Yes1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

Yes1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Box Contents lists an HDMI cable, 4.9 ft (1.5 m).14Reviewsoundguys.com/sonos-arc-review-118429Read 10 October 2026Review FAQ states the Arc comes with an HDMI cable in the box.

Optical cable included

No2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026No optical port and no optical cable in the box.

No1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026The included optical audio adapter attaches to the HDMI cable. It is not an optical cable.

General

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Series

Heston1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

Not available

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

10068871Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026The maker US page lists HESTON 120 BLACK as product 1006887. The default global black item is 1006888 and is not stored as this US model.

ARCG1US1BLK, ARCG1US11Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker ProductGroup JSON-LD lists the black and white US standalone soundbar SKUs.

GTIN / EAN

Not available

840136800019, 8401368000021Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker JSON-LD publishes these 12-digit US UPC values under the gtin13 key, matched to the black and white SKUs.

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

20 May 20253Press releasegroup.marshall.com/2025/05/20/marshall-shakes-up-home-audio-with-the-debut-of-its-first-ever-tv-soundbar-introducing-heston-120Read 13 October 2026Maker release dated 20 May 2025. It says Heston 120 goes on sale from June 3 at Marshall.com.

6 May 202013Press articletechradar.com/news/sonos-arc-enters-the-stratosphere-with-its-first-dolby-atmos-soundbarRead 10 October 2026News dated 6 May 2020 announces the Sonos Arc with pre-orders open.

Status

Available1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026The maker US page is live and orderable. The maker raised the US price after launch.

Discontinued1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker shop page marks the bar out of stock. Arc Ultra is its current product. The discontinued statement comes from the press source.15Reviewwhathifi.com/reviews/sonos-arcRead 10 October 2026Review update states the Sonos Arc has been discontinued and replaced by the Arc Ultra.

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

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Not available

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

Sonos Arc Ultra15Reviewwhathifi.com/reviews/sonos-arcRead 10 October 2026Review update states the Arc was replaced by the Arc Ultra.

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

$999.994Press articleandroidcentral.com/accessories/audio/marshall-heston-120-launchRead 13 October 2026Launch report dated 20 May 2025: US price $999.99, tax not included. Tom's Guide gives $999 / £899. The maker later raised the US price to $1,299.99.

$79912Press articletechradar.com/reviews/sonos-arcRead 10 October 2026Review states the launch price was $799 for the standalone unit, before the later price increase to $899. Excludes US sales tax.13Press articletechradar.com/news/sonos-arc-enters-the-stratosphere-with-its-first-dolby-atmos-soundbarRead 10 October 2026News states a $799 launch price, with the UK and Australian prices alongside. Excludes US sales tax.15Reviewwhathifi.com/reviews/sonos-arcRead 10 October 2026Review header and price section state the Arc launched at $799, then rose to $899 in 2021.

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.

Not available

Not available

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

US4Press articleandroidcentral.com/accessories/audio/marshall-heston-120-launchRead 13 October 2026US price and US product number.

Not available

ColoursiThe maker's own colour names

Black1Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026Colorways: Black.

Black, White1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026Maker colour selector offers Black and White.13Press articletechradar.com/news/sonos-arc-enters-the-stratosphere-with-its-first-dolby-atmos-soundbarRead 10 October 2026News states matte black and matte white.

Links

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Product page

www.marshall.com/us/en/product/heston-1201Maker product pagemarshall.com/us/en/product/heston-120Read 13 October 2026

www.sonos.com/en-us/shop/arc1Maker product pagesonos.com/en-us/shop/arcRead 10 October 2026

Spec sheet

Not available

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Manual

assets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdf2Owner's manualassets.ctfassets.net/javen7msabdh/7wNRKI8QhxTx6kluKdqS06/505538018c1a16d4470773b76fb7ea16/Marshall_Heston_120_OLM_2.pdfRead 13 October 2026

www.sonos.com/en-us/guides/arc2Owner's manualsonos.com/en-us/guides/arcRead 10 October 2026

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

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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.

2years5Maker product pagemarshall.com/us/en/policies/warrantyRead 13 October 2026US headphones and speakers policy: two-year limited warranty for purchases through marshall.com or an authorized US dealer. Other channels are excluded.

1year11Maker product pagesonos.com/en-us/legal/terms-of-useRead 10 October 2026US new product warranty in section 10(a): one year after original purchase. It excludes statutory rights and extended protection.

Both are also in the API. Back to all soundbars.