Soundbars / Compare

KEF XIO vs Samsung HW-QS90H

A

Product A: KEF

XIO

65 of 98 known

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B

Product B: Samsung

HW-QS90H

67 of 98 known

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Every value links to where we found it.

Only differences

AKEF XIO

BSamsung HW-QS90H

Audio system

8 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 pageus.kef.com/products/xio-soundbarRead 15 October 2026Product title and spec table: 5.1.2, up to 5.1.2 output channels.

7.1.21Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 20267 channels, built-in woofer channel and two height channels. This is the maker channel layout, not a count of discrete enclosures.

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.

121Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026All drivers are in the bar. No subwoofer or rear speakers are supplied.

131Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026General Feature gives 13 speakers. All are built into the bar, with no separate subwoofer or rears supplied.

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.

121Maker product pageus.kef.com/products/xio-soundbarRead 15 October 20266 Uni-Q MX plus 2 full-range plus 4 P185 drivers. Each Uni-Q MX counts once, as KEF counts it. KEF also states 12 Class D amplifier channels, 8 for the HF/MF drivers and 4 for the P185 drivers.

131Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026True 7.1.2ch All-in-one Sound states 13 built-in speakers. Four built-in woofers are included in that count.

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 pageus.kef.com/products/xio-soundbarRead 15 October 2026Page: two Uni-Q MX drivers support the two overhead channels. A third Uni-Q MX on the top face is used only when the bar is wall mounted. Three reviews describe this. The count is the two overhead drivers in the standard shelf position.5Maker spec sheet (PDF)images.salsify.com/image/upload/s--BaxUJ50x--/490b1abdf40cac67829ed9c59a357e1827c56377.pdfRead 15 October 2026Brochure: two Uni-Q MX drivers dedicated to the overhead channels complete the 5.1.2 layout.9Reviewwhathifi.com/tv-home-cinema/soundbars/kef-xioRead 15 October 2026Review: three Uni-Q MX drivers sit on the top. The centre one is used only when the bar is wall mounted.

28Reviewexpertreviews.co.uk/technology/tvs-home-cinema/samsung-qs90h-reviewRead 8 October 2026What you need to know explicitly states two up-firing drivers in the single soundbar. No optional rear drivers counted.

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.

AKEF XIO

Component	Driver type	Count	Diameter (mm)	Orientation
Soundbar	Uni-Q MX coaxial driver	6	50	Three front-facing and three top-facing on a shelf. One top-facing driver is used only when the bar is wall mounted.
Soundbar	Full-range driver	2	50	Not available
Soundbar	P185 racetrack bass driver with VECO	4	Not available	Two opposed pairs in a force-cancelling layout

Source1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: 6 x 50 mm Uni-Q MX drivers, 2 x 50 mm full-range drivers and 4 P185 racetrack bass drivers of 50 x 180 mm with VECO. The racetrack driver has no round diameter, so none is stored. Orientation comes from the reviews listed below.9Reviewwhathifi.com/tv-home-cinema/soundbars/kef-xioRead 15 October 2026Review: three Uni-Q MX face forward and three sit on top. The four P185 drivers form two pairs facing opposite directions. T3 says two drivers fire upward on a shelf. StereoNET says five of the six Uni-Q MX work at one time.

BSamsung HW-QS90H

Component	Driver type	Count	Orientation
Soundbar	Wide-range speaker	9	Front, side, wide and upward
Soundbar	Built-in woofer	4	Not available

Source4Press releasenews.samsung.com/global/samsung-expands-its-audio-ecosystem-for-2026-with-smarter-multi-device-sound-and-immersive-new-designsRead 8 October 2026Redefining Cinematic Sound section explicitly gives 13 drivers including nine wide-range speakers and Quad Bass Woofers. UK product page describes front-, side-, wide- and up-firing roles. No per-driver diameter is published. Wide-range orientation is aggregated, not an inferred allocation. The two counts sum to 13.

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

No4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026No subwoofer is in the box. The bar has an RCA output and a wireless output for an optional subwoofer.

No1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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.

04Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026No rear speakers are in the box.

01Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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.

No4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026The bar is one piece. A wireless surround feature with KEF speakers is announced for a later firmware update.

No2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 4 supplied components and page 9 optional SWA-9500S kit. This single-body bar has no detachable rear enclosures.

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

Not available

Not available

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

Not available

SWA-9500S1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026Speaker section explicitly names optional SWA-9500S. Music Studio 7 expansion requires a compatible Samsung TV and Q-Symphony, so it is not listed as a direct rear-speaker kit.

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.

820W1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026EU spec table: 820 W instantaneous total power rating. No RMS figure is published. The US page does not show the amplifier row.

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.

34Hz1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: 34 Hz to 20 kHz at plus or minus 3 dB, measured at 85 dB at 1 m.

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 pageus.kef.com/products/xio-soundbarRead 15 October 2026Same row as the lower limit.

Not available

Audio formats

7 of 9 differ

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

Yes1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table lists Dolby Atmos.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026Dolby Atmos and Atmos Music. Wireless Dolby Atmos requires a compatible 2022-2026 Samsung TV. HDMI playback does not require a Samsung TV.

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

Yes1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table lists DTS:X.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026UK feature section explicitly names DTS:X. Confirmed in the exact UK Simple User Guide playback list. Contrary US retailer claims are not used.

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, Dolby TrueHD, Dolby Digital Plus, DTS:X, Sony 360 Reality Audio, MPEG-H, LPCM1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table lists Dolby Atmos, DTS:X, 360 Reality Audio, MPEG-H and LPCM. The FAQ also names Dolby TrueHD and Dolby Digital Plus over eARC when the TV supports them.

Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD, DTS-HD Master Audio, DTS:X, LPCM, Eclipsa Audio3Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 2 Supported formats for playback lists Dolby 5.1ch, Dolby Digital Plus, Dolby TrueHD, Atmos, DTS 5.1ch, DTS HD, DTS-HD Master Audio, DTS:X and LPCM 8Ch. LPCM is stored without its 8 channel limit. Eclipsa Audio is explicitly supported by the UK product page. Decoder support is separate from Bluetooth and music-file formats.

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.

AKEF XIO

Connection	Format	Max input channels
HDMI eARC	5.1 Surround (compressed)	6
HDMI eARC	5.1 Surround (uncompressed)	6
HDMI eARC	Dolby Atmos	Not available
HDMI eARC	DTS:X	Not available
HDMI eARC	Sony 360 Reality Audio	Not available
HDMI eARC	MPEG-H	Not available
HDMI ARC	5.1 Surround (compressed)	6
HDMI ARC	Dolby Atmos	Not available
HDMI ARC	MPEG-H	Not available
Optical	5.1 Surround (compressed)	6
Network	5.1 Surround (compressed)	6
Network	Dolby Atmos	Not available
Network	DTS:X	Not available
Network	Sony 360 Reality Audio	Not available
Network	MPEG-H	Not available

Source4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 11.1 Compatibility with XIO (printed page 90). Optical: compressed 5.1 only. HDMI eARC: compressed and uncompressed 5.1, Dolby Atmos, DTS:X, Sony 360 Reality Audio and MPEG-H. HDMI ARC: compressed 5.1, Dolby Atmos and MPEG-H. Wireless: compressed 5.1 and all four object formats. The wireless column is stored as the network connection. Compatibility depends on the source and the content. A 5.1 layout has 6 channels. The table gives no channel count for the object formats.

BSamsung HW-QS90H

Connection	Format
HDMI input	Dolby Atmos
HDMI input	DTS:X
HDMI ARC	Dolby Atmos
HDMI eARC	Dolby Atmos

Source2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 10 explicitly supports Atmos over ARC/eARC. Page 13 external HDMI source instructions explicitly name Dolby Atmos and DTS:X. Transport codec and channel maxima are not specified in these rows. General decoder support is not used to infer other input combinations.

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

FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM, Ogg Vorbis1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM and Ogg Vorbis. Playback runs over the network and depends on the source device.

MP3, AAC, OGG, FLAC, WAV, ALAC, AIFF1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026Decoding Format list is the maker music-file list. USB music playback is explicitly unsupported. These are not Bluetooth codecs.

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.

192kHz1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: HDMI eARC up to 192 kHz and 24 bit. Optical is limited to 96 kHz and 24 bit.

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.

384kHz1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: network up to 384 kHz and 24 bit, depending on the source resolution.

Not available

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.

24bits1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Same row as the eARC sample rate. All routes are 24 bit.

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.

24bits1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Network route, 24 bit.

Not available

Connectivity

9 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.

AKEF XIO

Connector	Count	Version	Role
HDMI	1	2.1 eARC	HDMI eARC and ARC connection to the TV. There is no HDMI input.
Optical	1	Not available	TOSLINK digital audio input
Ethernet	1	Not available	RJ45 network port
USB-C	1	Not available	Service port
Subwoofer	1	Not available	RCA subwoofer output
AC power	1	Not available	AC power input

Source1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Inputs: HDMI 2.1 eARC, TOSLINK optical, USB Type C for service and RJ45 Ethernet. Outputs: wireless subwoofer output and RCA subwoofer output. The wireless output is a radio link to the KW2 RX receiver and not a connector. The back panel photo in the manual also shows the AC input.4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Quick start guide back panel: reset button, Bluetooth pairing button, IPT switch, power switch, service port, subwoofer output, optical input, AC input, HDMI eARC input and network port.

BSamsung HW-QS90H

Connector	Count	Role
HDMI	1	Audio and video input
HDMI	1	TV video output and ARC/eARC audio return
Optical	1	Digital audio input
USB-A	1	SERVICE firmware updates only
AC power	1	AC mains power input

Source2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 5 rear-side connector diagram. USB-A shape is visible and the SERVICE description restricts it to firmware updates. There is one HDMI source input, not two.

HDMI ARC

Yes1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

HDMI eARC

Yes1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: HDMI 2.1 eARC. The same port also carries ARC.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

HDMI-CEC

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 6.1: turn on HDMI CEC in the TV settings.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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

No4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026The only HDMI connector is the eARC and ARC connection to the TV. FAQ 8: the HDMI port is for connecting to a TV and not for sources.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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

AKEF XIO

Not available

BSamsung HW-QS90H

Width (px)	Height (px)	Refresh rate (Hz)
3840	2160	60

Source1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 20264K Video Pass states 60 Hz. Full EU manual page 14 defines UHD as 3840 x 2160p. No lower-resolution maximum is inferred. Manual allows 8-bit RGB/YCbCr 4:4:4, 4:2:2 and 4:2:0, and 10-bit 4:2:2 or 4:2:0. 12-bit and 4K 120 Hz are unsupported.

HDR passthrough formats

Not available

HDR10+1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

VRR passthrough

Not available

No10Measurementlesnumeriques.com/barre-de-son/samsung-hw-qs90h-p78179/test.htmlRead 8 October 2026Connectivite section explicitly says VRR and ALLM require the higher HW-Q995F, while QS90H input is limited to 4K60. Exact marketed QS90H review, French test unit.

ALLM passthrough

Not available

No10Measurementlesnumeriques.com/barre-de-son/samsung-hw-qs90h-p78179/test.htmlRead 8 October 2026Same connectivity section explicitly distinguishes the QS90H from the higher model supporting VRR/ALLM.

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.

Not available

Not available

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

Yes1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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

5.31Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: Bluetooth 5.3. No codec list is published.

5.31Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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

Not available

SBC2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 15 explicitly states SBC data at 44.1 kHz and 48 kHz with A2DP. Music-file AAC is not proof of Bluetooth AAC.

Wi-Fi

Yes1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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.

802.11a/b/g/n/ac/ax1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: IEEE 802.11a/b/g/n/ac/ax. The manual router requirements list 802.11a/b/g/n/ac. The spec table is used.

Not available

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

2.4 GHz, 5 GHz, 6 GHz1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: 2.4 GHz, 5 GHz and 6 GHz.

2.4 GHz, 5 GHz11Reviewtest-achats.be/hightech/barres-de-son/comparateur/samsung-hw-qs90h/283/129013Read 8 October 2026Public technical specifications state Compatible Wi-Fi Dual band (2.4 and 5GHz): Oui. Highest Wi-Fi protocol is explicitly not indicated. Exact marketed HW-QS90H. The UK manual independently requires 5 GHz for Group Play.

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

Not available

Not available

Streaming and control

5 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 Connect, UPnP, QPlay1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: KEF Connect, AirPlay, Google Cast, UPnP and Bluetooth. Streaming services: Spotify via Spotify Connect, Tidal via Tidal Connect and QQ Music via QPlay. The features list names multiroom through AirPlay 2 and Google Cast.

AirPlay 2, Google Cast, Spotify Connect, Tidal Connect, Roon Ready1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026UK Special Feature list supports Chromecast, Spotify Connect, Tidal Connect, Roon Ready and AirPlay. UK Expert Reviews explicitly identifies AirPlay 2. This is UK service support, not every regional SKU.

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

Siri, Google Assistant4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 7.4: Siri controls playback while an iOS device streams to the XIO. Google Assistant does the same for an Android device. The bar has no built-in assistant and What Hi-Fi? lists no voice control.

Amazon Alexa, Google Assistant1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026UK Voice Feature identifies Alexa built-in and Works with Google. Google Assistant uses an external compatible Google device. Bixby is explicitly No on the UK reference.

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

Yes9Reviewwhathifi.com/tv-home-cinema/soundbars/kef-xioRead 15 October 2026Review: built-in microphones allow the XIO to measure the room and detect walls and furniture. Tom's Guide and T3 also mention built-in microphones. The maker pages do not state a microphone.

Yes2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 5 microphone control and page 8 SpaceFit Sound Pro microphone analysis.

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 manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 5 physical microphone button turns microphone off, indicated by red LED. This is a button, not a documented electrical disconnect switch.

Companion apps

KEF Connect4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026The KEF Connect app sets up and controls the bar.

Samsung Sound, SmartThings2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Samsung Sound App network setup on page 15. SmartThings is explicitly supported on the UK product page and UK simple guide.

Companion app platforms

iOS, Android4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 4.4.1: KEF Connect for iOS 14 or above and Android 10 or above.

Android, iOS9Retailer pagebusiness.currys.co.uk/catalogue/tv-entertainment/dvd-blu-ray-home-cinema/soundbars/samsung-hw-qs90h-xu-7-1-2-all-in-one-sound-bar-with-dolby-atmos-dts-x/N524480WRead 8 October 2026App compatibility lists Android and iOS for the exact UK model. The erroneous retailer HDMI x2 input row is not used.

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

Yes1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Features list: multiroom via AirPlay 2 and Google Cast. TechRadar says the bar has no multiroom option. The maker and the manual say it has.4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 7.3 Multi-Room Streaming: AirPlay and Google Cast groups.

Yes2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 16 Group Play connects two or more audio devices on the same 5 GHz Wi-Fi network through Samsung Sound. UK page footnote allows up to ten devices. This is network group audio, not optional rear expansion.

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

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026In the Box: remote control with two AAA batteries.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

Sound processing

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Sound modes

Default, Music, Movie, Night, Dialogue, Direct4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 10.4.5 sound profiles: Default, Music, Movie, Night, Dialogue and Direct. The remote has two sound profile buttons that default to Dialogue and Night.

Standard, Surround, Game Pro, AI Adaptive Sound1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026Names follow full EU manual page 7. Product page calls Surround mode Surround Sound Expansion and AI Adaptive Sound Adaptive 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.

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 10.4.2 Calibrate with IPT: it adjusts the EQ to the listening environment in about 45 seconds. The app also asks for the soundbar height and the room size.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026SpaceFit Sound Pro uses a built-in microphone for automatic room analysis. Full manual page 8 confirms automatic optimization.

Room calibration system

Intelligent Placement Technology (IPT)4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 10.4.2 names Intelligent Placement Technology.

SpaceFit Sound Pro1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Dialogue sound profile: it emphasises vocal frequencies and reduces background noise.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

Night mode

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Night sound profile: it compresses the dynamic range for quiet listening.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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

Treble trim, Bass extension, High-pass frequency, Subwoofer low-pass frequency, Subwoofer gain4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 10.4.4 Expert Mode: Treble Trim minus 3.0 to plus 3.0 dB, Bass Extension Less, Standard or Extra, High-Pass Frequency 50 to 120 Hz, Sub Out Low-Pass Frequency 40 to 250 Hz and Sub Gain minus 3.0 to plus 3.0 dB.

Bass, Treble, 7-band EQ2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Pages 7-8. Bass/treble controls work outside Standard mode. The seven-band EQ works in Standard mode. Bass and treble run from -6 to +6. The seven bands are 150 Hz, 300 Hz, 600 Hz, 1.2 kHz, 2.5 kHz, 5 kHz and 10 kHz, each -6 to +6. Controls are distinct from per-channel level adjustments.

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

Not available

Q-Symphony1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

Power

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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.

400W1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026US spec table: 400 W maximum operating power. The EU page says 401 W. The manual says 400 W and is used. Idle power is 20 W.

65W1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026Operating Power Consumption (Main) is 65 W for the single soundbar. This is electrical draw, not audio output power.

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

0.45W4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 15.5: Non wireless mode standby 0.45 W with HDMI auto wake-up. The spec table says under 0.5 W for Non Wi-Fi mode. The same section lists Non Wi-Fi mode standby as 1.5 W, so the 0.45 W row is used as the bar with all radios off.

0.5W7Maker spec sheet (PDF)images.samsung.com/is/content/samsung/p6/common/energylabel/common-energylabel-hw-qs90h-xu-standby.pdfRead 8 October 2026Page 1 English Networked Standby Information, row D: standby-mode power consumption 0.5 W. This is separate from row F with all network ports on. Bar-only single-body reference.

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

1.8W4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 15.5: ECO Standby (Network Standby) 1.8 W. The spec table says under 2.0 W. Standby with high power is 3 W.

2W7Maker spec sheet (PDF)images.samsung.com/is/content/samsung/p6/common/energylabel/common-energylabel-hw-qs90h-xu-standby.pdfRead 8 October 2026Page 1 row F: overall standby consumption 2.0 W with all network ports on. Wi-Fi and Bluetooth rows each state 2.0 W. Auto power down time 20 minutes. This resolves the simple guide overall standby figure versus product-page 0.5 W.

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

AC 100-240 V, 50/60 Hz1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: power input 100-240 V AC, 50/60 Hz.

AC mains power cable2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Pages 4 and 9 describe an AC mains power cable directly connected to the soundbar. Numeric input voltage/frequency is not published in the document.

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

Not available

Not available

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

Not available

Not available

Measured

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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.

AKEF XIO

Not available

BSamsung HW-QS90H

Connection	Latency (ms)
Bluetooth	220

Source10Measurementlesnumeriques.com/barre-de-son/samsung-hw-qs90h-p78179/test.htmlRead 8 October 2026Connectivite section explicitly reports 220 ms measured when connecting the bar to a compatible television over Bluetooth. TV model, firmware, Bluetooth codec and sync correction are not disclosed. No optical or HDMI measurement is inferred. French QS90H sample, supplied bar without separate subwoofer/rears.

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

Not available

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.

Width1,210Height70Depth165mm(47.6 × 2.8 × 6.5 in)1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: 70 x 1210 x 165 mm (H x W x D), 2.8 x 47.6 x 6.5 inches.

Width1,245Height68.8Depth125mm(49 × 2.7 × 4.9 in)1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026Net Dimension (Main Speaker), normal tabletop orientation. Wall orientation is different.

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

10,500g(23.1 lb)1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Spec table: 10.5 kg (23.1 lbs).

6,700g(14.8 lb)1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026Net Weight (Main Speaker) is 6.7 kg. Exact kg-to-g conversion. Set Weight 8.9 kg describes the package.

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

Width1,373Height138Depth174mm(54.1 × 5.4 × 6.9 in)1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

Package weightiShipping package including supplied components and packaging.

Not available

8,900g(19.6 lb)1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026UK Set Weight 8.9 kg matches Samsung specification sheet page 2 weight with box. Exact kg-to-g conversion.

Wall mountable

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Section 4.6: wall mounting with the supplied template and brackets. The bar can also stand on a TV cabinet.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

In the box

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In the box

XIO soundbar, Remote control, AAA batteries, HDMI cable (2 m), Power cable (2 m), Wall mounting template, Wall mounting kit, Printed materials4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026In the Box (printed page 7): XIO, remote control, AAA batteries, printed materials, HDMI cable (2 m), power cable (2 m), wall mounting template and wall mounting kit. The kit drawing shows two small parts, each marked x4.

Soundbar, Remote control, 2 AAA batteries, AC power cable, Wall-mounting guide, Wall-mounting bracket, Holder screw, 2 M4 x L10 screws, 2 wall anchors, 2 M5 x L55 wall screws, 4 rubber feet2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 4 components, page 6 two AAA batteries. UK simple guide confirms this list. Remote and wall mount are confirmed on the UK page. Regional cable/battery caveat applies. HDMI cable is kept out of this list because the UK guide warns it may not be provided.9Retailer pagebusiness.currys.co.uk/catalogue/tv-entertainment/dvd-blu-ray-home-cinema/soundbars/samsung-hw-qs90h-xu-7-1-2-all-in-one-sound-bar-with-dolby-atmos-dts-x/N524480WRead 8 October 2026Exact UK /XU box-contents list confirms remote control, batteries, power cable and wall mount kit. Battery type/quantity is stated by the maker manual. Retailer power-adapter claim is not used because the maker shows direct AC cable input.

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

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026Wall mounting template and wall mounting kit are in the box.5Maker spec sheet (PDF)images.salsify.com/image/upload/s--BaxUJ50x--/490b1abdf40cac67829ed9c59a357e1827c56377.pdfRead 15 October 2026Brochure: the soundbar includes a wall-mount kit as a default feature.

Yes1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

HDMI cable included

Yes4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026HDMI cable of 2 m is in the box.

Not available

Optical cable included

No4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026No optical cable appears in the In the Box page.

No2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Pages 10 and 14 explicitly label optical cable sold separately.

General

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Series

Not available

Q-Series1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

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

SP4083M0AA, SP4083B0AA, SP4083M0BA, SP4083B0BA, SP4083M0CA, SP4083B0CA1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026US store lists SP4083M0CA for Silver Grey and SP4083B0CA for Slate Black. The UK store lists the BA models and the EU store the AA models. All six are stored.2Maker product pageuk.kef.com/products/xio-soundbarRead 15 October 2026UK store lists SP4083M0BA and SP4083B0BA.3Maker product pageeu.kef.com/products/xio-soundbarRead 15 October 2026EU store lists SP4083M0AA and SP4083B0AA.

HW-QS90H/XU1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026UK HW-QS90H/XU reference package. Regional suffixes with different service support are not combined.

GTIN / EAN

637203051142, 637203051210, 637203051159, 637203051227, 637203051166, 6372030512341Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026Barcodes (gtin12) from the page data of each store. US 637203051166 (Silver Grey) and 637203051234 (Slate Black). UK 637203051159 and 637203051227. EU 637203051142 and 637203051210.2Maker product pageuk.kef.com/products/xio-soundbarRead 15 October 2026UK barcodes 637203051159 (Silver Grey) and 637203051227 (Slate Black).3Maker product pageeu.kef.com/products/xio-soundbarRead 15 October 2026EU barcodes 637203051142 (Silver Grey) and 637203051210 (Slate Black).

88060990146989Retailer pagebusiness.currys.co.uk/catalogue/tv-entertainment/dvd-blu-ray-home-cinema/soundbars/samsung-hw-qs90h-xu-7-1-2-all-in-one-sound-bar-with-dolby-atmos-dts-x/N524480WRead 8 October 2026Basic Specifications identifies exact UK HW-QS90H/XU and EAN 8806099014698. Samsung Spanish sheet has a different regional EAN.

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

8 July 20256Press articlecepro.com/news/xio-soundbar-from-kef-complements-modern-smart-home-living/619921Read 15 October 2026CEPro article of 8 July 2025 reports the new XIO soundbar from KEF. UK early access for members started the same day.

28 December 20254Press releasenews.samsung.com/global/samsung-expands-its-audio-ecosystem-for-2026-with-smarter-multi-device-sound-and-immersive-new-designsRead 8 October 2026Global announcement dated Korea December 28, 2025. Regional stories dated December 29 are later republications.

Status

Available1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026The product page is live in every store and lists a price.

Available1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026UK maker page has a Where to buy route and describes the model as now available. May 2026 maker launch also confirms retail launch.

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

Not available

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

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.

$2,499.991Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026US page shows 2,499.99 USD, no tax included. This matches the launch price in July 2025 trade coverage. See the CEPro source.6Press articlecepro.com/news/xio-soundbar-from-kef-complements-modern-smart-home-living/619921Read 15 October 2026Article quotes KEF: available for a retail price point of 2,499.99 USD. US price, tax not stated.

Not available

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.

€2,2993Maker product pageeu.kef.com/products/xio-soundbarRead 15 October 2026EU and German stores show 2,299 EUR including VAT. The launch price is confirmed by the hifi.de test source below.7Reviewhifi.de/test/kef-xio-test-236581Read 15 October 2026hifi.de test of 9 July 2025 gives the manufacturer's recommended price of 2,299 EUR. Germany, VAT included.

Not available

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

US, GB, EU1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026US, UK and EU KEF stores sell the XIO. Other regions may exist and are not stored.2Maker product pageuk.kef.com/products/xio-soundbarRead 15 October 2026UK store, price 1,999 GBP. No GBP price field exists in the schema.3Maker product pageeu.kef.com/products/xio-soundbarRead 15 October 2026EU store, priced in euro. The German store shows the same models and price.

GB1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

ColoursiThe maker's own colour names

Silver Grey, Slate Black1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026US and UK stores name the colours Silver Grey and Slate Black. The EU store adds (EU) to each name.2Maker product pageuk.kef.com/products/xio-soundbarRead 15 October 2026UK store names the colours Silver Grey and Slate Black.3Maker product pageeu.kef.com/products/xio-soundbarRead 15 October 2026EU store names the colours Silver Grey (EU) and Slate Black (EU).

Graphite Black1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

Links

Not compared

Product page

us.kef.com/products/xio-soundbar1Maker product pageus.kef.com/products/xio-soundbarRead 15 October 2026KEF US product page. The spec table, features and variants below were read from this page and the same table on the KEF UK and EU pages.

www.samsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xu1Maker product pagesamsung.com/uk/audio-devices/soundbar/qs90h-black-hw-qs90h-xuRead 8 October 2026

Spec sheet

images.salsify.com/image/upload/s--BaxUJ50x--/490b1abdf40cac67829ed9c59a357e1827c56377.pdf5Maker spec sheet (PDF)images.salsify.com/image/upload/s--BaxUJ50x--/490b1abdf40cac67829ed9c59a357e1827c56377.pdfRead 15 October 2026KEF XIO soundbar brochure with the specification table. Linked from the KEF product page.

www.supersonido.es/media/productos/59259/docs/documento-28683.pdf6Maker spec sheet (PDF)supersonido.es/media/productos/59259/docs/documento-28683.pdfRead 8 October 2026Samsung Spain 2026 HW-QS90H product sheet hosted by Supersonido. Page 2 has EAN 8806099013493 for the /XC region, not the UK /XU GTIN. This document was opened and visually checked. Its unqualified 330 W output is not stored as RMS or peak.

Manual

images.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdf4Owner's manualimages.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdfRead 15 October 2026XIO user manual, 2025 V10, English. KEF links it from the product page.

org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx2Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Samsung UK support download for HW-QS90H/XU. EU user guide AH81-18516B-00, version 260423.0. Also covers sibling QS95H/QS95GH. Only the exact QS90H functions confirmed on the UK page are used.

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.

Not available

1year3Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 2 UK/EIRE warranty statement: twelve months from original purchase against defective materials and workmanship. UK HW-QS90H/XU reference only. Retailer extended cover and statutory rights excluded.

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