KEF XIO Slate Black vs Yamaha True X Bar 90A
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Choosing between the KEF XIO Slate Black and Yamaha True X Bar 90A? Both compete in the Soundbar segment. Here’s how they compare across the specs that matter most for your home theater.
Pricing for both models is currently unavailable. Check the retailer links below for current deals.
Looking at overall performance dimensions: The KEF XIO Slate Black scores higher in value. The Yamaha True X Bar 90A leads in form factor, room fit. They score similarly in ease of use.
These soundbars differ in channel configurations of 5.1.2 vs 3.1.2.
These two Soundbar options trade wins across different dimensions. The right choice depends on which specs matter most for your room and listening preferences — review the detailed table below to decide.
For most home theaters, the Yamaha True X Bar 90A is the stronger choice — it leads in 2 of 4 scored dimensions. The KEF XIO Slate Black makes more sense if you prioritize the 1 dimension where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
KEF XIO Slate Black
Yamaha True X Bar 90A
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Channel Config | 5.1.2 | 3.1.2 |
| Total Power (RMS) | 820W | — |
| Driver Count | 12 | — |
| Freq Response Low | — | — |
| Freq Response High | — | — |
| Passive | No | No |
| Dolby Atmos | Yes | Yes |
| Dolby Digital+ | Yes | Yes |
| Dolby TrueHD | Yes | No |
| DTS:X | Yes | Yes |
| DTS Virtual:X | No | No |
| DTS-HD Master | No | No |
| Built-in Sub | No | No |
| Wireless Sub Included | No | Yes |
| Wireless Sub Support | Yes | Yes |
| Wireless Surround Support | Yes | Yes |
| HDMI eARC | Yes | Yes |
| HDMI Inputs | 1 | 1 |
| HDMI Version | 2.1 | 2.1 |
| Optical Input | Yes | Yes |
| Analog Stereo In | No | No |
| Sub Pre-Out | Yes | No |
| Ethernet | Yes | No |
| Bluetooth | Yes | Yes |
| BT Version | 5.3 | 5.0 |
| Wi-Fi | Yes | Yes |
| Wi-Fi Standard | Wi-Fi 6 | — |
| AirPlay 2 | Yes | Yes |
| Chromecast | Yes | Yes |
| Spotify Connect | Yes | Yes |
| Voice Assistants | Alexa | |
| Room Calibration | KEF Connect | — |
| Dialog Enhancement | Yes | Yes |
| Night Mode | Yes | Yes |
| App Control | KEF Connect | Yamaha Sound Bar Controller |
| Wall Mountable | Yes | Yes |
Key Differences
- Channel Config: KEF XIO Slate Black at 5.1.2 vs Yamaha True X Bar 90A at 3.1.2
- BT Version: KEF XIO Slate Black at 5.3 vs Yamaha True X Bar 90A at 5.0
- Total Power (RMS): KEF XIO Slate Black at 820W vs Yamaha True X Bar 90A at —
- Driver Count: KEF XIO Slate Black at 12 vs Yamaha True X Bar 90A at —
- Dolby TrueHD: KEF XIO Slate Black at Yes vs Yamaha True X Bar 90A at No
See Where These Rank
Check our editorial rankings to see how KEF XIO Slate Black and Yamaha True X Bar 90A compare to the rest of the field.
Best Soundbar RankingsSpecifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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