Soundbars / Compare

KEF XIO vs Sennheiser AMBEO Soundbar Plus

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Product A: KEF

XIO

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B

Product B: Sennheiser

AMBEO Soundbar Plus

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Only differences

AKEF XIO

BSennheiser AMBEO Soundbar Plus

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.

7.1.43Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Maker-advertised virtual 7.1.4 sound field. Does not describe physical channel or driver count. The reference package is the standalone bar.

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.

93Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

93Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

23Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Plus: two full-range speakers explicitly called top-firing on pp.9 and 25. The top-positioned woofers are excluded from this directional height count.

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.

BSennheiser AMBEO Soundbar Plus

Component	Driver type	Count	Diameter (mm)	Orientation
Soundbar	Full-range aluminum cone	3	50	Front left, center and right
Soundbar	Full-range aluminum cone	2	50	Side left and right
Soundbar	Full-range aluminum cone	2	50	Up-firing left and right
Soundbar	Inverse cone cellulose woofer	2	100	Top left and right

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Speaker quantities, locations and centimetre diameters from the exact-model specifications on p.78.

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.

No3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Built-in woofers are included. The separate AMBEO Sub is optional, not part of this package.

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.

03Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Standalone bar package, no separate rear enclosures.

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.

No3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Fixed one-piece bar with no detachable rear enclosures, shown in product overview and package contents.

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

Not available

Sennheiser AMBEO Sub3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Up to four wireless AMBEO Subs can be added separately. Optional subs contribute no specifications to this reference package.

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

400W3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Maker total audio power explicitly RMS for the standalone bar, p.78.

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.

38Hz3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Maker response limit at -3 dB, standalone bar.

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.

20kHz3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Maker response limit at -3 dB, standalone bar.

Audio formats

6 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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

LPCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS, DTS-ES Discrete 6.1, DTS-ES Matrix 6.1, DTS 96/24, DTS-HD High Resolution Audio, DTS-HD Master Audio, DTS-HD LBR, DTS:X, MPEG-H, Sony 360 Reality Audio3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Shared supported surround formats table p.82. Lossless TrueHD and DTS-HD formats require an appropriate digital route.

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.

BSennheiser AMBEO Soundbar Plus

Connection	Format
HDMI eARC	LPCM
HDMI eARC	Dolby Digital
HDMI eARC	Dolby Digital Plus
HDMI eARC	Dolby TrueHD
HDMI eARC	Dolby Atmos
HDMI eARC	DTS
HDMI eARC	DTS-ES Discrete 6.1
HDMI eARC	DTS-ES Matrix 6.1
HDMI eARC	DTS 96/24
HDMI eARC	DTS-HD High Resolution Audio
HDMI eARC	DTS-HD Master Audio
HDMI eARC	DTS-HD LBR
HDMI eARC	DTS:X
HDMI eARC	MPEG-H
HDMI eARC	Sony 360 Reality Audio
HDMI ARC	LPCM stereo
HDMI ARC	Dolby Digital
HDMI ARC	DTS Digital Surround
HDMI ARC	DTS 96/24
HDMI ARC	DTS-ES Discrete/Matrix
Optical	LPCM stereo
Optical	Dolby Digital
Optical	DTS
Optical	DTS-ES Discrete 6.1
Optical	DTS 96/24

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026eARC decoding follows p.82. ARC entries are the unqualified supported combinations from p.32. TV-dependent ARC object/lossless modes are omitted. Optical is Plus only. The optical multichannel LPCM, Dolby Digital Plus, Atmos over DD+, MPEG-H and 360 Reality Audio claims on p.82 conflict with S/PDIF transport limits and are omitted. The ARC table describes calculated speaker layouts, not incoming channel counts. No max_channels cell is inferred from its 5.1, 6.1 or 7.1 values.

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.

DSD, MP3, AAC, HE-AAC, LPCM, FLAC, AIFF, ALAC, Vorbis3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Playable network-streaming file formats p.81. USB is service/power only.

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.

192kHz3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Optical S/PDIF input sampling rates up to 192 kHz, p.80. Does not establish the same limit for every codec or route.

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

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.

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.

BSennheiser AMBEO Soundbar Plus

Connector	Count	Version	Role
HDMI	1	2.1	TV output with ARC and eARC
USB-A	1	Not available	Service updates and 5 V 1 A accessory power
AC power	1	Not available	Power input
HDMI	2	2.0a	Source input
Optical	1	Not available	S/PDIF audio input
RCA	2	Not available	Left and right analog audio input
RCA	1	Not available	Mono powered subwoofer pre-output
Ethernet	1	Not available	Network input

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Physical connector counts p.11 (Plus) or p.12 (Mini) and p.80. Stereo RCA is two sockets. USB is not a music-file input.

HDMI ARC

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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

BSennheiser AMBEO Soundbar Plus

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

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026HDMI 2.0a source inputs support up to 4K 60 Hz, p.80. Chroma and bit depth are not stated.

HDR passthrough formats

Not available

Dolby Vision3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Manual p.80 explicitly lists Dolby Vision passthrough. Other HDR formats are not inferred.

VRR passthrough

Not available

No6Measurementlesnumeriques.com/barre-de-son/sennheiser-ambeo-soundbar-plus-p70753/test.htmlRead 8 October 2026The review explicitly states HDMI inputs do not pass VRR.

ALLM passthrough

Not available

No7Reviewwhathifi.com/news/sennheisers-five-star-dolby-atmos-soundbar-is-back-down-to-its-lowest-price-everRead 8 October 2026The article explicitly says the HDMI passthrough inputs do not support 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

2.23Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Plus HDMI source inputs HDCP 2.2, TV eARC output HDCP 1.4, p.80.

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

5.03Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 20265.0 Classic/BLE source-audio link. The optional AMBEO Sub link uses 5.2 and does not replace the source version.

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

Not available

AAC, SBC3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026AAC and SBC for received Bluetooth audio. LC3 is confined to the optional subwoofer link.

Wi-Fi

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

802.11a/b/g/n/ac/ax3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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 GHz3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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

Not available

100Mbps3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026RJ45 network port rated 100/10 Mbit, p.80.

Streaming and control

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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.

Google Cast, AirPlay 2, Spotify Connect, Tidal Connect, UPnP3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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 Assistant, Apple Siri3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Alexa is built-in and uses bar microphones. Google Assistant requires an external device. Siri casting uses a separate Siri-enabled device via AirPlay, per maker press release. Availability depends on language and region.4Press releasenewsroom.sennheiser.com/the-worlds-most-immersive-sound-7ez2v6Read 8 October 2026Alexa built-in, external Google Assistant device and Siri casting integration. The Mini release makes the separate Siri device route explicit.

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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Four integrated microphones for room calibration and Alexa.

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Physical Mic Mute touch button. The manual states it mutes the built-in microphones, not an electrical disconnect.

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.

Sennheiser Smart Control3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

iOS, Android3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

Yes6Measurementlesnumeriques.com/barre-de-son/sennheiser-ambeo-soundbar-plus-p70753/test.htmlRead 8 October 2026Connectivity and streaming section explicitly identifies AirPlay 2, Google Chromecast and Alexa Cast as multiroom routes.

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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

Adaptive, Music, Movie, News, Neutral, Sports3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Acoustic measurements with built-in microphones via Smart Control setup.

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.

AMBEO Self-Calibration3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 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.

Foundation, Low-Mid, Clarity and Brilliance3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026User-adjustable Foundation bass, Low-Mid midrange and Clarity and Brilliance treble controls described p.70.

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

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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.

Not available

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.

0.5W3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Upper limit only: standby without a network connection is less than 0.5 W.

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.

1.9W3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Standby with network connection is 1.9 W, standalone bar.

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.

100–240 V AC, 50/60 Hz3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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

BSennheiser AMBEO Soundbar Plus

Connection	Latency (ms)
Bluetooth	485

Source6Measurementlesnumeriques.com/barre-de-son/sennheiser-ambeo-soundbar-plus-p70753/test.htmlRead 8 October 2026Bluetooth latency measured by Les Numériques, standalone bar. Review 6 December 2022, firmware 0.0.62. Source device, codec and measurement compensation settings are not published.

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.

Width1,051Height77Depth121mm(41.4 × 3 × 4.8 in)3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Maker approximate dimensions including tabletop feet from p.78.

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).

6,300g(13.9 lb)3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Maker approximate bar weight p.78.

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

Width1,144Height135Depth219mm(45 × 5.3 × 8.6 in)2Maker spec sheet (PDF)files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2BsheetRead 8 October 2026Single product retail packaging. Outer master carton excluded.

Package weightiShipping package including supplied components and packaging.

Not available

10,000g(22 lb)2Maker spec sheet (PDF)files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2BsheetRead 8 October 2026Retail package gross weight, not outer carton weight.

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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Optional SB02-WM wall mount, pp.26–27.

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.

AMBEO Soundbar Plus, Remote control with CR2032 battery, Premium high-speed HDMI cable, Power cord, Quick guide, Safety guide, Compliance sheet3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

No3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026SB02-WM is sold separately, not in the bar package.

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.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

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.

No3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026

General

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Series

Not available

AMBEO1Maker product pageus.sennheiser-hearing.com/products/ambeo-soundbar-plusRead 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.

SB02M, 700144, 7001432Maker spec sheet (PDF)files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2BsheetRead 8 October 2026US and EU country-specific standalone articles in the Technical Data table. Regional power cords differ. China-specific hardware is excluded.

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).

4260752330220, 810091270226, 4260752330213, 8100912702192Maker spec sheet (PDF)files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2BsheetRead 8 October 2026US and EU EAN and UPC codes in the Technical Data table.

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.

1 September 20224Press releasenewsroom.sennheiser.com/the-worlds-most-immersive-sound-7ez2v6Read 8 October 2026Maker announcement for the standalone bar.

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 pageus.sennheiser-hearing.com/products/ambeo-soundbar-plusRead 8 October 2026

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.

$1,499.954Press releasenewsroom.sennheiser.com/the-worlds-most-immersive-sound-7ez2v6Read 8 October 2026US launch MSRP excluding tax, separate AMBEO Sub excluded.

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.

€1,4995Press releasenewsroom.sennheiser.com/immersiver-sound-fur-die-beste-unterhaltungRead 8 October 2026German maker launch consumer recommended retail price, VAT included. Standalone bar only.

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.

US, EU2Maker spec sheet (PDF)files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2BsheetRead 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).

Anthracite2Maker spec sheet (PDF)files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2BsheetRead 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.

us.sennheiser-hearing.com/products/ambeo-soundbar-plus1Maker product pageus.sennheiser-hearing.com/products/ambeo-soundbar-plusRead 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.

files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2Bsheet2Maker spec sheet (PDF)files.bbystatic.com/NmMAkVBXKG2LIYiT9ifffA%3D%3D/Spec%2BsheetRead 8 October 2026

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.

cdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdf3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/ambeo-soundbar-plus/Instruction%20manual%20AMBEO%20Soundbar%20system%20SB02/Instruction_manual_AMBEO_Soundbar_system_SB02.pdfRead 8 October 2026Instruction manual version 07/25 A04. Plus specifications pp.78 and 80, Mini pp.79 and 80. Shared audio and network tables pp.81–82. Package contents p.7.

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

1 of 1 differ

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

Not available

2years1Maker product pageus.sennheiser-hearing.com/products/ambeo-soundbar-plusRead 8 October 2026US maker store includes a two-year manufacturer warranty.

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