Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
For the KEF XIO, start with Movie for films and cinematic television, Music for most music, and Dialogue when speech is difficult to understand. Choose Direct when you want unvirtualised two-channel playback, and Night when you need quieter, less startling dynamics. After selecting a profile, set the correct room-size option, then tune bass and any connected subwoofer gradually by ear.
There is no single numeric EQ preset that is best for every room. The XIO’s profile choice handles the character of the programme, while room size, listening position, subwoofer placement and level determine whether the result sounds balanced or boomy.
Quick settings guide
These are the most useful starting points for the XIO’s documented sound profiles. They are starting points rather than laboratory-validated performance rankings; KEF’s published material describes the intended behaviour of each mode but does not report independent measurements of how much intelligibility or bass improvement each one produces.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →| What you are listening to | First profile to try | What it is intended to do | When to change it |
|---|---|---|---|
| Films and cinematic TV | Movie | Enhances the cinematic presentation, dialogue, soundstage and impactful effects. | Try Default if the surround effect sounds over-processed or unnatural. |
| Music | Music | Provides balanced, natural audio with minimal effects. | Use Direct for an unvirtualised two-channel presentation. |
| Hard-to-understand voices | Dialogue | Emphasises vocal frequencies and reduces background noise. | If voices become too prominent, return to Movie or Default and reduce excessive bass. |
| Late-night viewing | Night | Compresses dynamics so quiet sounds are easier to hear and loud sounds are reduced. | Turn it off when you want the full contrast and impact of a film mix. |
| Simple stereo playback | Direct | Plays two-channel material without virtualisation. | Switch to Music when you prefer a broader, more processed presentation. |
How the XIO profiles differ
The profile is the quickest control on the soundbar because it changes processing for the type of content you selected. Treat it as a programme mode, not as a replacement for room calibration. A mode that sounds impressive for an action film may make a vocal recording less natural, and a speech-enhancement mode can make a music mix feel unnaturally forward.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Movie: the film and television starting point
KEF describes Movie as enhancing the cinematic experience, including dialogue, soundstage and impactful effects. It is therefore the sensible first choice for a film, drama or spectacle-heavy television programme. Listen for a wider sense of space and clearer placement of effects without assuming that the most dramatic presentation is automatically the most accurate.
Some mixes already contain strong surround information, and some listeners prefer a less processed sound. If Movie makes ambience appear detached from the screen, voices sound coloured, or effects dominate the programme, compare it directly with Default. Default is the useful control case when you want the XIO’s normal processing rather than the extra cinematic emphasis.
Music: balanced and natural
Music is designed for balanced, natural audio with minimal effects. It is the best first choice for albums, radio, concerts and playlists when you want the recording’s tonal balance to remain recognisable. Use the same volume and a familiar track when comparing Music with another profile; otherwise a louder mode can seem better simply because it is louder.
Recommended Free Tools
Direct: two-channel without virtualisation
Direct is for listeners who want unvirtualised two-channel playback. It avoids the XIO’s virtual surround presentation and is useful for a carefully produced stereo recording, a near-field listening position or any situation where spatial processing sounds artificial. Direct is not a quality ranking: it is a different presentation. If a stereo track feels too narrow, Music may give you a more enveloping result.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Dialogue: the first response to unclear speech
KEF’s manual defines Dialogue as a mode that enhances speech clarity by emphasising vocal frequencies and reducing background noise. It is intended for television shows, documentaries and news programmes where understanding spoken words matters most.
Use Dialogue before raising the overall volume dramatically. If the voice becomes nasal, overly loud or disconnected from the rest of the mix, return to Movie or Default and inspect the bass settings. Excessive low-frequency energy can mask consonants, so a modest bass reduction may solve the problem without making the entire programme thin.
Night: controlled dynamics after dark
Night compresses dynamic range: quiet sounds remain more audible while loud sounds are reduced. This is useful when other people are sleeping or when room acoustics make explosions and advertisements startling. Compression changes the intended contrast of a film, so switch back to Movie, Music or Direct when you can listen at a normal level.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Best XIO settings for movies
- Select Movie. Start playback from a scene containing both speech and effects rather than judging the mode from a silent menu.
- Compare with Default. Leave the volume unchanged and switch modes during the same scene. Keep Movie if its added soundstage and impact remain coherent; choose Default if processing draws attention to itself.
- Set the room-size option. In the XIO’s bass controls, choose the room size that most closely matches the listening room. The room-size selection changes the speaker roll-off point: a larger-room choice uses a lower roll-off point.
- Balance bass before increasing it. If a subwoofer is connected, use the bar/subwoofer balance and subwoofer gain controls in small increments. Bass should support effects without sounding like a separate source.
- Check dialogue at your normal seat. A setting that sounds spacious from one position can become boomy or indistinct elsewhere. Make the final decision from the main viewing position.
Movie mode cannot correct a poor connection, a badly placed subwoofer or a room with severe bass resonances. Solve those physical issues before assuming that another profile will provide a permanent fix.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Best XIO settings for music
- Begin with Music. Its minimal-effects approach is the most neutral starting point for mixed music libraries.
- Try Direct for stereo purists. Use the same two-channel track and switch between Music and Direct. Keep Direct when you prefer a focused, unvirtualised image; keep Music when a broader presentation is more enjoyable.
- Use a recording you know. Acoustic instruments, vocals and familiar bass lines reveal changes in tonal balance more reliably than an unfamiliar track.
- Set bass for the room, not the genre. A bass-heavy song can make a correct setting seem excessive. Check several recordings before changing Sub Gain or the room-size selection.
Neither Music nor Direct is a universal “audiophile” choice. The appropriate mode depends on whether you value the XIO’s virtual soundstage or want the signal to remain recognisably two-channel.
How to make dialogue clearer
Use the profile first
Select Dialogue for speech-heavy material. It is specifically designed to emphasise vocal frequencies and reduce background noise, so it should be your first experiment when words are being lost under music, ambience or effects.
Reduce masking bass
If Dialogue makes voices too prominent, do not keep increasing the profile or the master volume. Return to Movie or Default and reduce excessive bass instead. Low-frequency energy from the bar or subwoofer can mask the consonants that make speech intelligible.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteCheck the source and listening conditions
- Test a programme with a clean studio mix and a programme recorded in a noisy location; the latter may remain difficult even with Dialogue enabled.
- Listen from the main seat, because reflections and room modes can change the balance between voice and effects.
- If a late-night session is also required, use Night for its dynamic control, but remember that Night and Dialogue solve different problems: one compresses level differences and the other changes speech emphasis.
Room-size and bass controls explained
The XIO manual describes several expert controls. They interact, so make one change at a time and return to the previous value if the result becomes less natural.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
| Control | What it changes | Practical use |
|---|---|---|
| Bass Extension | Adjusts speaker roll-off through a room-size selection. Larger-room settings use a lower roll-off point. | Choose the room-size option that matches the actual room before fine-tuning level. |
| Soundbar/Subwoofer Balance | Shifts bass responsibility between the soundbar and the subwoofer. | Use it when the combined system sounds too heavy from the subwoofer or too light at the low end. |
| High-Pass Frequency | Routes frequencies above the selected point to the soundbar. | Use it to define which upper-bass and midrange content remains with the bar when a subwoofer is handling lower frequencies. |
| Sub Out Low-Pass Frequency | Routes frequencies below the selected point to the subwoofer. | Adjust only after the room-size choice and basic balance are sensible; an overly high hand-off can make bass localisable. |
| Sub Gain | Changes subwoofer output level. | Raise it gradually until bass fills in the programme, then stop before it sounds like a separate speaker. |
| Sub Polarity | Changes the subwoofer’s phase relationship with the bar. | Try the alternate polarity when bass cancels at the listening position or becomes unexpectedly weak around the crossover region. |
A reliable tuning sequence
Changing several controls at once makes it impossible to know which adjustment helped. Use this order instead:
- Choose the content profile. Movie, Music, Dialogue, Direct or Night should match what you are watching or hearing.
- Match room size. Select the Bass Extension room-size option that reflects the physical listening room.
- Set the subwoofer’s position. Start at the front of the room or slightly to one side, then test another position. Every room responds differently, so placement is part of tuning rather than an afterthought.
- Start Sub Gain low. KEF’s setup guidance is to begin with low gain and raise it until you just notice the bass filling in the sound; stop at that point.
- Adjust balance and crossover controls. If the sub is obvious, shift responsibility toward the soundbar or lower the sub level. If bass disappears around the hand-off, review High-Pass Frequency, Sub Out Low-Pass Frequency and Sub Polarity one at a time.
- Recheck at several volumes. A setting that is balanced quietly may become dominant when played loudly. Keep the setting that remains integrated at your normal level.
Connecting the XIO to a television
Use HDMI eARC when available
KEF recommends HDMI eARC as the preferred connection for the XIO when the television supports it. Connect the soundbar to the television’s port labelled eARC or ARC, then enable the television’s eARC and HDMI-CEC controls. Manufacturers use different names and menu locations for CEC and eARC, so consult the television’s audio or external-device settings if the soundbar does not switch on or receive audio.
Use optical when eARC is unavailable
Optical is the fallback for televisions without eARC. Select optical as the television’s audio output and verify that the XIO is listening to the corresponding input. Optical can carry television sound without an HDMI eARC connection, but the exact format options depend on the television and source.
Confirm the result
- Play a programme and verify that the XIO, rather than the television’s speakers, is producing sound.
- Raise and lower the volume with the television remote to confirm that CEC control is working over HDMI.
- If there is no audio, reselect the output after changing cables and check that the television is not muted or set to an incompatible digital-audio mode.
Adding and positioning a KEF subwoofer
A compatible KEF subwoofer can extend the system’s low-frequency output, but more bass is not automatically better bass. KEF recommends trying a front position or a position slightly to the side because room boundaries create different peaks and cancellations. Move the subwoofer and listen from the main seat rather than choosing a position based only on appearance.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
The KW2 RX Receiver enables wireless pairing of a KEF subwoofer. The KEF Connect app can identify the subwoofer model to make integration easier. Wireless pairing removes a signal cable between the bar and subwoofer, but it does not remove the need to set gain, polarity and placement.
Choosing the right integration goal
| Your priority | Integration approach | What to listen for |
|---|---|---|
| Cinematic impact | Movie profile, carefully increased Sub Gain and a position that supports effects without booming. | Explosions have weight while dialogue and music remain anchored to the soundbar. |
| Tighter musical bass | Music or Direct, conservative Sub Gain and the position with the smoothest response. | Bass lines start and stop with the recording rather than lingering in the room. |
| Small or bass-sensitive room | Lower sub level, correct room-size selection and Night when late viewing requires reduced peaks. | Quiet details remain audible without room-shaking bursts. |
Troubleshooting common problems
Voices are still hard to hear
- Select Dialogue and compare it with Movie at the same volume.
- Reduce Sub Gain or adjust Soundbar/Subwoofer Balance if low end is masking speech.
- Check that the television is outputting the intended audio path over HDMI eARC or optical.
- Listen from the main seat; moving closer to a wall or corner can exaggerate bass and reduce perceived clarity.
The sound is too processed
Compare Movie with Default, or compare Music with Direct. The alternatives reduce or remove some virtualisation, so choose the mode whose spatial effect remains believable on the programme you are hearing.
Bass is boomy or detached
- Lower Sub Gain before changing several crossover values.
- Try a front or slightly side position for the subwoofer.
- Review the room-size selection and Soundbar/Subwoofer Balance.
- Try the alternate Sub Polarity if bass is weak in some seats but excessive in others.
Night viewing is still startling
Enable Night and reduce the master volume to a comfortable level. Night compresses dynamic range; it does not eliminate every sudden change created by the source, the room or a television’s own volume processing.
The soundbar does not respond to the TV remote
With HDMI, verify that HDMI-CEC is enabled on the television and that the cable is connected to the eARC/ARC-labelled port. Because brands use different names for CEC, look for settings such as device control, HDMI control or a manufacturer-specific equivalent. With optical, volume control may require the television’s optical-output or remote-control configuration rather than an HDMI-CEC setting.
What “best” means for the XIO
The best setting is the one that keeps the intended part of the programme audible without drawing attention to the soundbar’s processing or subwoofer. Movie is the practical film default, Music is the balanced music default, Direct preserves two-channel playback, Dialogue addresses speech intelligibility, and Night manages late-night dynamics. The room-size choice, placement and low-frequency controls then determine whether those profiles sound integrated in your room.
Make changes in the order the system depends on them: connection, profile, room size, placement, gain, then crossover and polarity. This prevents a connection fault or room resonance from being mistaken for a profile problem and gives you a repeatable way to return to a setting that works.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
