{"data":{"slug":"kef-xio","type":"soundbar","brand":"KEF","name":"XIO","aliases":["KEF XIO","XIO Soundbar","XIO Soundbar High-End Dolby Atmos 5.1.2"],"release_date":"2025-07","url":"https://arkivo.dev/soundbars/kef-xio","specs":{"series":null,"model_numbers":["SP4083M0AA","SP4083B0AA","SP4083M0BA","SP4083B0BA","SP4083M0CA","SP4083B0CA"],"gtins":["637203051142","637203051210","637203051159","637203051227","637203051166","637203051234"],"announce_date":"2025-07-08","status":"available","predecessor":null,"successor":null,"launch_price_usd":2499.99,"launch_price_eur":2299,"markets":["US","GB","EU"],"colors":["Silver Grey","Slate Black"],"manufacturer_url":"https://us.kef.com/products/xio-soundbar","spec_sheet_url":"https://images.salsify.com/image/upload/s--BaxUJ50x--/490b1abdf40cac67829ed9c59a357e1827c56377.pdf","manual_url":"https://images.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdf","eprel_registration_number":null,"warranty_years":null,"system_channel_configuration":"5.1.2","speaker_count_total":12,"soundbar_driver_count":12,"up_firing_driver_count":2,"drivers":[{"component":"Soundbar","type":"Uni-Q MX coaxial driver","count":6,"diameter_mm":50,"orientation":"Three front-facing and three top-facing on a shelf. One top-facing driver is used only when the bar is wall mounted."},{"component":"Soundbar","type":"Full-range driver","count":2,"diameter_mm":50,"orientation":null},{"component":"Soundbar","type":"P185 racetrack bass driver with VECO","count":4,"diameter_mm":null,"orientation":"Two opposed pairs in a force-cancelling layout"}],"subwoofer_included":false,"subwoofer_connection":null,"subwoofer_driver_diameter_mm":null,"rear_speakers_included_count":0,"rear_speaker_connection":null,"detachable_rear_speakers":false,"compatible_subwoofers":null,"compatible_rear_speakers":null,"total_output_power_w":null,"peak_output_power_w":820,"frequency_response_min_hz":34,"frequency_response_max_hz":20000,"dolby_atmos":true,"dts_x":true,"audio_formats":["Dolby Atmos","Dolby TrueHD","Dolby Digital Plus","DTS:X","Sony 360 Reality Audio","MPEG-H","LPCM"],"audio_format_connections":[{"connection":"hdmi_earc","format":"5.1 Surround (compressed)","max_channels":6},{"connection":"hdmi_earc","format":"5.1 Surround (uncompressed)","max_channels":6},{"connection":"hdmi_earc","format":"Dolby Atmos","max_channels":null},{"connection":"hdmi_earc","format":"DTS:X","max_channels":null},{"connection":"hdmi_earc","format":"Sony 360 Reality Audio","max_channels":null},{"connection":"hdmi_earc","format":"MPEG-H","max_channels":null},{"connection":"hdmi_arc","format":"5.1 Surround (compressed)","max_channels":6},{"connection":"hdmi_arc","format":"Dolby Atmos","max_channels":null},{"connection":"hdmi_arc","format":"MPEG-H","max_channels":null},{"connection":"optical","format":"5.1 Surround (compressed)","max_channels":6},{"connection":"network","format":"5.1 Surround (compressed)","max_channels":6},{"connection":"network","format":"Dolby Atmos","max_channels":null},{"connection":"network","format":"DTS:X","max_channels":null},{"connection":"network","format":"Sony 360 Reality Audio","max_channels":null},{"connection":"network","format":"MPEG-H","max_channels":null}],"music_file_formats":["FLAC","WAV","AIFF","ALAC","AAC","WMA","MP3","M4A","LPCM","Ogg Vorbis"],"max_audio_sample_rate_khz":192,"max_music_file_sample_rate_khz":384,"max_audio_bit_depth_bits":24,"max_music_file_bit_depth_bits":24,"ports":[{"type":"hdmi","count":1,"version":"2.1 eARC","role":"HDMI eARC and ARC connection to the TV. There is no HDMI input."},{"type":"optical","count":1,"version":null,"role":"TOSLINK digital audio input"},{"type":"ethernet","count":1,"version":null,"role":"RJ45 network port"},{"type":"usb_c","count":1,"version":null,"role":"Service port"},{"type":"subwoofer","count":1,"version":null,"role":"RCA subwoofer output"},{"type":"ac","count":1,"version":null,"role":"AC power input"}],"hdmi_arc":true,"hdmi_earc":true,"hdmi_cec":true,"video_passthrough":false,"video_passthrough_modes":null,"hdr_passthrough_formats":null,"vrr_passthrough":null,"allm_passthrough":null,"hdcp_version":null,"bluetooth":true,"bluetooth_version":"5.3","bluetooth_codecs":null,"wifi":true,"wifi_standard":"802.11a/b/g/n/ac/ax","wifi_bands":["2.4 GHz","5 GHz","6 GHz"],"ethernet_speed_mbps":null,"streaming_protocols":["AirPlay 2","Google Cast","Spotify Connect","Tidal Connect","UPnP","QPlay"],"voice_assistants":["Siri","Google Assistant"],"built_in_microphone":true,"microphone_mute_switch":null,"companion_apps":["KEF Connect"],"companion_app_platforms":["iOS","Android"],"multiroom_audio":true,"remote_included":true,"sound_modes":["Default","Music","Movie","Night","Dialogue","Direct"],"automatic_room_calibration":true,"room_calibration_system":"Intelligent Placement Technology (IPT)","dialogue_enhancement":true,"night_mode":true,"equalizer_controls":["Treble trim","Bass extension","High-pass frequency","Subwoofer low-pass frequency","Subwoofer gain"],"tv_speaker_integration":null,"power_consumption_operating_w":400,"power_consumption_standby_w":0.45,"power_consumption_network_standby_w":1.8,"power_supply":"AC 100-240 V, 50/60 Hz","rear_speaker_battery_life_h":null,"rear_speaker_charge_time_h":null,"measured_low_frequency_extension_hz":null,"measured_high_frequency_extension_hz":null,"measured_max_spl_db":null,"measured_frequency_response_deviation_db":null,"measured_latency":null,"measured_power_consumption_operating_w":null,"measured_power_consumption_standby_w":null,"measured_weight_g":null,"dimensions_mm":{"width_mm":1210,"height_mm":70,"depth_mm":165},"weight_g":10500,"component_dimensions":null,"package_dimensions_mm":null,"package_weight_g":null,"wall_mountable":true,"in_the_box":["XIO soundbar","Remote control","AAA batteries","HDMI cable (2 m)","Power cable (2 m)","Wall mounting template","Wall mounting kit","Printed materials"],"wall_mount_included":true,"hdmi_cable_included":true,"optical_cable_included":false},"variants":[{"model_number":"SP4083M0AA","gtin":"637203051142","colors":["Silver Grey"],"markets":["EU"],"launch_price_eur":2299},{"model_number":"SP4083B0AA","gtin":"637203051210","colors":["Slate Black"],"markets":["EU"],"launch_price_eur":2299},{"model_number":"SP4083M0BA","gtin":"637203051159","colors":["Silver Grey"],"markets":["GB"]},{"model_number":"SP4083B0BA","gtin":"637203051227","colors":["Slate Black"],"markets":["GB"]},{"model_number":"SP4083M0CA","gtin":"637203051166","colors":["Silver Grey"],"markets":["US"],"launch_price_usd":2499.99},{"model_number":"SP4083B0CA","gtin":"637203051234","colors":["Slate Black"],"markets":["US"],"launch_price_usd":2499.99}],"sources":[{"url":"https://us.kef.com/products/xio-soundbar","kind":"manufacturer_page","accessed":"2026-10-15","fields":["manufacturer_url","model_numbers","gtins","launch_price_usd","markets","colors","variants","status","system_channel_configuration","drivers","soundbar_driver_count","speaker_count_total","up_firing_driver_count","peak_output_power_w","frequency_response_min_hz","frequency_response_max_hz","dolby_atmos","dts_x","audio_formats","music_file_formats","max_audio_sample_rate_khz","max_music_file_sample_rate_khz","max_audio_bit_depth_bits","max_music_file_bit_depth_bits","ports","hdmi_arc","hdmi_earc","bluetooth","bluetooth_version","wifi","wifi_standard","wifi_bands","streaming_protocols","multiroom_audio","dimensions_mm","weight_g","power_consumption_operating_w","power_supply"],"notes":{"manufacturer_url":"KEF 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.","model_numbers":"US 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.","gtins":"Barcodes (gtin12) from the page data of each store. US 637203051166 (Silver Grey) and 637203051234 (Slate Black). UK 637203051159 and 637203051227. EU 637203051142 and 637203051210.","launch_price_usd":"US page shows 2,499.99 USD, no tax included. This matches the launch price in July 2025 trade coverage. See the CEPro source.","markets":"US, UK and EU KEF stores sell the XIO. Other regions may exist and are not stored.","colors":"US and UK stores name the colours Silver Grey and Slate Black. The EU store adds (EU) to each name.","variants":"One row per regional model number and colour, from the three KEF stores.","status":"The product page is live in every store and lists a price.","system_channel_configuration":"Product title and spec table: 5.1.2, up to 5.1.2 output channels.","drivers":"Spec 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.","soundbar_driver_count":"6 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.","speaker_count_total":"All drivers are in the bar. No subwoofer or rear speakers are supplied.","up_firing_driver_count":"Page: 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.","peak_output_power_w":"EU spec table: 820 W instantaneous total power rating. No RMS figure is published. The US page does not show the amplifier row.","frequency_response_min_hz":"Spec table: 34 Hz to 20 kHz at plus or minus 3 dB, measured at 85 dB at 1 m.","frequency_response_max_hz":"Same row as the lower limit.","dolby_atmos":"Spec table lists Dolby Atmos.","dts_x":"Spec table lists DTS:X.","audio_formats":"Spec 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.","music_file_formats":"Spec table: FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM and Ogg Vorbis. Playback runs over the network and depends on the source device.","max_audio_sample_rate_khz":"Spec table: HDMI eARC up to 192 kHz and 24 bit. Optical is limited to 96 kHz and 24 bit.","max_music_file_sample_rate_khz":"Spec table: network up to 384 kHz and 24 bit, depending on the source resolution.","max_audio_bit_depth_bits":"Same row as the eARC sample rate. All routes are 24 bit.","max_music_file_bit_depth_bits":"Network route, 24 bit.","ports":"Inputs: 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.","hdmi_earc":"Spec table: HDMI 2.1 eARC. The same port also carries ARC.","bluetooth_version":"Spec table: Bluetooth 5.3. No codec list is published.","wifi_standard":"Spec 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.","wifi_bands":"Spec table: 2.4 GHz, 5 GHz and 6 GHz.","streaming_protocols":"Spec 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.","multiroom_audio":"Features list: multiroom via AirPlay 2 and Google Cast. TechRadar says the bar has no multiroom option. The maker and the manual say it has.","dimensions_mm":"Spec table: 70 x 1210 x 165 mm (H x W x D), 2.8 x 47.6 x 6.5 inches.","weight_g":"Spec table: 10.5 kg (23.1 lbs).","power_consumption_operating_w":"US 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.","power_supply":"Spec table: power input 100-240 V AC, 50/60 Hz."}},{"url":"https://uk.kef.com/products/xio-soundbar","kind":"manufacturer_page","accessed":"2026-10-15","fields":["markets","variants","gtins","model_numbers","colors"],"notes":{"markets":"UK store, price 1,999 GBP. No GBP price field exists in the schema.","variants":"UK rows: SP4083M0BA Silver Grey and SP4083B0BA Slate Black.","gtins":"UK barcodes 637203051159 (Silver Grey) and 637203051227 (Slate Black).","model_numbers":"UK store lists SP4083M0BA and SP4083B0BA.","colors":"UK store names the colours Silver Grey and Slate Black."}},{"url":"https://eu.kef.com/products/xio-soundbar","kind":"manufacturer_page","accessed":"2026-10-15","fields":["markets","variants","gtins","model_numbers","launch_price_eur","colors"],"notes":{"markets":"EU store, priced in euro. The German store shows the same models and price.","variants":"EU rows: SP4083M0AA Silver Grey and SP4083B0AA Slate Black.","gtins":"EU barcodes 637203051142 (Silver Grey) and 637203051210 (Slate Black).","model_numbers":"EU store lists SP4083M0AA and SP4083B0AA.","launch_price_eur":"EU and German stores show 2,299 EUR including VAT. The launch price is confirmed by the hifi.de test source below.","colors":"EU store names the colours Silver Grey (EU) and Slate Black (EU)."}},{"url":"https://images.salsify.com/image/upload/s--yy9XvVWq--/aac3398ff8d2a938345e79dd74360807b5aeffa0.pdf","kind":"manual","accessed":"2026-10-15","fields":["manual_url","audio_format_connections","hdmi_cec","power_consumption_standby_w","power_consumption_network_standby_w","sound_modes","equalizer_controls","automatic_room_calibration","room_calibration_system","dialogue_enhancement","night_mode","voice_assistants","companion_apps","companion_app_platforms","remote_included","in_the_box","hdmi_cable_included","optical_cable_included","wall_mountable","wall_mount_included","subwoofer_included","rear_speakers_included_count","detachable_rear_speakers","video_passthrough","ports","multiroom_audio"],"notes":{"manual_url":"XIO user manual, 2025 V10, English. KEF links it from the product page.","audio_format_connections":"Section 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.","hdmi_cec":"Section 6.1: turn on HDMI CEC in the TV settings.","power_consumption_standby_w":"Section 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.","power_consumption_network_standby_w":"Section 15.5: ECO Standby (Network Standby) 1.8 W. The spec table says under 2.0 W. Standby with high power is 3 W.","sound_modes":"Section 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.","equalizer_controls":"Section 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.","automatic_room_calibration":"Section 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.","room_calibration_system":"Section 10.4.2 names Intelligent Placement Technology.","dialogue_enhancement":"Dialogue sound profile: it emphasises vocal frequencies and reduces background noise.","night_mode":"Night sound profile: it compresses the dynamic range for quiet listening.","voice_assistants":"Section 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.","companion_apps":"The KEF Connect app sets up and controls the bar.","companion_app_platforms":"Section 4.4.1: KEF Connect for iOS 14 or above and Android 10 or above.","remote_included":"In the Box: remote control with two AAA batteries.","in_the_box":"In 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.","hdmi_cable_included":"HDMI cable of 2 m is in the box.","optical_cable_included":"No optical cable appears in the In the Box page.","wall_mountable":"Section 4.6: wall mounting with the supplied template and brackets. The bar can also stand on a TV cabinet.","wall_mount_included":"Wall mounting template and wall mounting kit are in the box.","subwoofer_included":"No subwoofer is in the box. The bar has an RCA output and a wireless output for an optional subwoofer.","rear_speakers_included_count":"No rear speakers are in the box.","detachable_rear_speakers":"The bar is one piece. A wireless surround feature with KEF speakers is announced for a later firmware update.","video_passthrough":"The 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.","ports":"Quick 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.","multiroom_audio":"Section 7.3 Multi-Room Streaming: AirPlay and Google Cast groups."}},{"url":"https://images.salsify.com/image/upload/s--BaxUJ50x--/490b1abdf40cac67829ed9c59a357e1827c56377.pdf","kind":"manufacturer_pdf","accessed":"2026-10-15","fields":["spec_sheet_url","up_firing_driver_count","wall_mount_included"],"notes":{"spec_sheet_url":"KEF XIO soundbar brochure with the specification table. Linked from the KEF product page.","up_firing_driver_count":"Brochure: two Uni-Q MX drivers dedicated to the overhead channels complete the 5.1.2 layout.","wall_mount_included":"Brochure: the soundbar includes a wall-mount kit as a default feature."}},{"url":"https://www.cepro.com/news/xio-soundbar-from-kef-complements-modern-smart-home-living/619921","kind":"press","accessed":"2026-10-15","fields":["announce_date","launch_price_usd"],"notes":{"announce_date":"CEPro article of 8 July 2025 reports the new XIO soundbar from KEF. UK early access for members started the same day.","launch_price_usd":"Article quotes KEF: available for a retail price point of 2,499.99 USD. US price, tax not stated."}},{"url":"https://hifi.de/test/kef-xio-test-236581","kind":"review_site","accessed":"2026-10-15","fields":["launch_price_eur"],"notes":{"launch_price_eur":"hifi.de test of 9 July 2025 gives the manufacturer's recommended price of 2,299 EUR. Germany, VAT included."}},{"url":"https://www.techradar.com/televisions/soundbars/kef-xio-review","kind":"review_site","accessed":"2026-10-15","fields":["release_date"],"notes":{"release_date":"TechRadar: KEF launched the XIO in July 2025 in markets including the UK and US. What Hi-Fi? published its review on 8 July 2025 and lists the launch prices."}},{"url":"https://www.whathifi.com/tv-home-cinema/soundbars/kef-xio","kind":"review_site","accessed":"2026-10-15","fields":["built_in_microphone","up_firing_driver_count","drivers"],"notes":{"built_in_microphone":"Review: 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.","up_firing_driver_count":"Review: three Uni-Q MX drivers sit on the top. The centre one is used only when the bar is wall mounted.","drivers":"Review: 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."}}],"fields_filled":65,"updated":"2026-10-16"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}