Soundbars / Compare
KEF XIO vs Klipsch Flexus Core 300
Product A: KEF
65 of 98 known
Product B: Klipsch
52 of 98 known
Change Klipsch Flexus Core 300
45 of 90 fields differ
- 22 different values
- 23 known for one only
- 20 the same
- 25 missing for both
Weight
0 to 30,000 g
Soundbar weight
A10,500g
B8,500g
All 98 fields
Every value links to where we found it.


Audio system
7 of 17 differ
System channel configuration
Physical drivers in the package
Physical drivers in the bar
Up-firing drivers in the package
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.
Driver layout
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.
BKlipsch Flexus Core 300
| Component | Driver type | Count | Diameter (mm) | Orientation |
|---|---|---|---|---|
| Soundbar | Paper cone driver | 4 | 57.15 | Front-firing |
| Soundbar | Horn-loaded tweeter | 1 | 19.05 | Front-firing |
| Soundbar | Discrete full-range Dolby Atmos driver | 2 | 57.15 | Up-firing |
| Soundbar | Paper cone driver | 2 | 57.15 | Side-firing |
| Soundbar | High-output paper cone built-in subwoofer driver | 4 | 101.6 | Not available |
Separate subwoofer included
Included subwoofer connection
Not available
Not available
Included subwoofer driver diameter
Not available
Not available
Rear speakers included
Included rear speaker connection
Not available
Not available
Detachable rear speakers
Compatible optional subwoofers
Not available
Compatible optional rear speakers
Not available
Total RMS audio output power
Not available
Not available
Total peak audio output power
Not available
Published frequency response lower limit
Published frequency response upper limit
Audio formats
7 of 9 differ
Dolby Atmos
DTS:X
Supported audio formats
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.
PCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD, DTS:X3Owner's manuald2um2qdswy1tb0.cloudfront.net/product-manuals/Flexus-Core_300-Manual.pdfRead 10 October 2026Decoding and playback modes page: PCM (LPCM up to 8 channels), Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD and DTS:X. The page does not tie each format to one input.
Audio formats by connection
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 |
BKlipsch Flexus Core 300
Not availableMusic file formats
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.
Max wired audio sample rate
Not available
Max music file sample rate
Not available
Max wired audio bit depth
Not available
Max music file bit depth
Not available
Connectivity
7 of 17 differ
Ports on the bar
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.
BKlipsch Flexus Core 300
| Connector | Count | Version | Role |
|---|---|---|---|
| HDMI | 1 | 2.1 | HDMI IN for a source device with video passthrough |
| HDMI | 1 | Not available | HDMI eARC output to the TV |
| Optical | 1 | Not available | Digital audio input |
| USB-C | 1 | Not available | USB input. The spec sheet says system updates and MP3 playback |
| Ethernet | 1 | Not available | Network connection |
| RCA | 1 | Not available | SUB OUT subwoofer output |
| 3.5 mm audio | 1 | Not available | MIC input for the supplied Dirac Live calibration microphone |
| Other | 1 | Not available | Flexus transmitter port for the wireless subwoofer and surround dongles |
| AC power | 1 | Not available | Mains power input |
HDMI eARC
HDMI-CEC
HDMI video passthrough
Video passthrough modes
AKEF XIO
Not availableBKlipsch Flexus Core 300
| Width (px) | Height (px) | Refresh rate (Hz) |
|---|---|---|
| 3840 | 2160 | 120 |
HDR passthrough formats
Not available
Not available
VRR passthrough
Not available
Not available
ALLM passthrough
Not available
Not available
HDCP version
Not available
Not available
Bluetooth audio input
Bluetooth version
Not available
Bluetooth audio codecs
Not available
Not available
Wi-Fi
Wi-Fi standard
Not available
Wi-Fi bands
Built-in Ethernet speed
Not available
Not available
Streaming and control
5 of 8 differ
Streaming protocols
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, QPlay1Maker product pageklipsch.com/products/flexus-core-300Read 10 October 2026Page lists built-in connections to Apple AirPlay, Google Cast, TIDAL Connect, QPlay and Spotify Connect. The manual names AirPlay 2 on the display list.4Reviewtechradar.com/televisions/soundbars/klipsch-flexus-core-300-reviewRead 10 October 2026Review: Wi-Fi streaming supports Spotify Connect, Tidal Connect, AirPlay and Google Cast.
Voice assistants
Not available
Built-in microphone
No3Owner's manuald2um2qdswy1tb0.cloudfront.net/product-manuals/Flexus-Core_300-Manual.pdfRead 10 October 2026The bar has a MIC input for a supplied wired calibration microphone. No built-in microphone or voice assistant is described.4Reviewtechradar.com/televisions/soundbars/klipsch-flexus-core-300-reviewRead 10 October 2026Review: no voice assistant support and a wired microphone supplied for Dirac Live.
Microphone mute control
Not available
Not available
Companion apps
Companion app platforms
Multiroom audio
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.
Not available
Remote included
Sound processing
3 of 7 differ
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.
Automatic room calibration
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.
Dirac Live1Maker product pageklipsch.com/products/flexus-core-300Read 10 October 2026Page: Dirac Live. A public review says the supplied version is basic and a fuller licence costs extra.4Reviewtechradar.com/televisions/soundbars/klipsch-flexus-core-300-reviewRead 10 October 2026Review: Dirac Live calibration uses the supplied wired microphone and takes about ten minutes.5Reviewrtings.com/soundbar/reviews/klipsch/flexus-core-300Read 10 October 2026Public review intro says it is the first model with a basic version of Dirac Live, and the full licence costs extra. Membership-locked measurements were not used.
Dialogue enhancement
Yes1Maker product pageklipsch.com/products/flexus-core-300Read 10 October 2026Page: Dialogue Boost in the Klipsch Connect Plus app. The manual lists Low, Medium and High levels.3Owner's manuald2um2qdswy1tb0.cloudfront.net/product-manuals/Flexus-Core_300-Manual.pdfRead 10 October 2026Display list: Dialog Boost with three levels.
Night mode
Yes1Maker product pageklipsch.com/products/flexus-core-300Read 10 October 2026Page: Night Mode in the Klipsch Connect Plus app. The manual shows NGT ON and NGT OFF on the display.3Owner's manuald2um2qdswy1tb0.cloudfront.net/product-manuals/Flexus-Core_300-Manual.pdfRead 10 October 2026Display list: NGT OFF and NGT ON.
Equalizer controls
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 level, Three-band EQ, Per-channel level1Maker product pageklipsch.com/products/flexus-core-300Read 10 October 2026Page: EQ presets or a custom EQ mix in the app.3Owner's manuald2um2qdswy1tb0.cloudfront.net/product-manuals/Flexus-Core_300-Manual.pdfRead 10 October 2026Display list: bass equalizer level -6 to +6. Review text adds a three-band EQ and per-channel levels in the app.4Reviewtechradar.com/televisions/soundbars/klipsch-flexus-core-300-reviewRead 10 October 2026Review: three-band EQ with 6 dB boost or cut and individual channel volumes in the app.
TV speaker integration
Not available
Not available
Power
4 of 6 differ
Published operating power
Not available
Published standby power
Not available
Published networked standby power
Power supply
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.
Not available
Detachable rear battery life
Not available
Not available
Detachable rear charge time
Not available
Not available
Measured
None of 8 known
Low-frequency extension (measured)
Not available
Not available
High-frequency extension (measured)
Not available
Not available
Max sound pressure (measured)
Not available
Not available
Frequency response deviation (measured)
Not available
Not available
Measured latency
Not available
Not available
Operating power (measured)
Not available
Not available
Standby power (measured)
Not available
Not available
Soundbar weight (measured)
Not available
Not available
Dimensions and weight
2 of 6 differ
Soundbar dimensions
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.
Soundbar weight
Component dimensions and weight
Not available
Not available
Package dimensions
Not available
Not available
Package weight
Not available
Not available
Wall mountable
In the box
2 of 4 differ
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.
Sound bar, Remote control with 2 AAA batteries, Power cord (2.0 m, region specific), HDMI cable (1.5 m), Wired microphone, User manual2Maker spec sheet (PDF)d2um2qdswy1tb0.cloudfront.net/spec-sheets/Flexus-Core-300-Spec-Sheet-v08.pdfRead 10 October 2026Included accessories: BLE backlit remote, 2.0 m power cord (region specific), 1.5 m HDMI cable, 2 AAA batteries and user manual. The manual's Inside page also shows a microphone.3Owner's manuald2um2qdswy1tb0.cloudfront.net/product-manuals/Flexus-Core_300-Manual.pdfRead 10 October 2026Inside page shows sound bar, remote, power cord, HDMI cable and a microphone.
Wall mount hardware 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.
HDMI cable included
Optical cable included
General
7 of 7 differ
Series
Not available
Model numbers
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.
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).
743878066692, 743878066708, 7438780667152Maker spec sheet (PDF)d2um2qdswy1tb0.cloudfront.net/spec-sheets/Flexus-Core-300-Spec-Sheet-v08.pdfRead 10 October 2026Model table lists UPC 743878066692 for NA, EAN 0743878066708 for EUA and 0743878066715 for CCC. Stored in the 12-digit UPC form with the leading zero removed from the EANs.
Announced
Not available
Status
Not available
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
$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.
Launch price (EU)
€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
Markets
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.
Not available
Colours
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).
Links
Not compared
Product page
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.
Manual
EPREL registration number
Not available
Not available
Warranty
1 of 1 differ
Manufacturer warranty (source market)
Not available
Both are also in the API. Back to all soundbars.













