Short answer: the KEF LS50 Wireless II for better sound quality, the Kanto YU6 for the lower price. The KEF LS50 Wireless II ranks #14 of 65 powered bookshelf speakers at $2999. The Kanto YU6 ranks #29 at $579.99, $2419.01 cheaper.
What the KEF LS50 Wireless II offers: Erin’s measurements give preference scores of 4.52 standalone and 6.59 with an ideal subwoofer, with a -3dB point around 51Hz. The coincident Uni-Q layout helps preserve tonal consistency across horizontal and vertical listening positions. Low listening-window narrow-band deviation of 0.308 supports relatively clean midrange reproduction. HDMI eARC and streaming functions make it a capable all-in-one stereo system. Watch for: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency. Compact bass drivers limit deep-bass output. App placement adjustments are not the same as microphone-based automatic room correction. The price and primary/secondary architecture are practical trade-offs; neither driver geometry nor a single directivity statistic guarantees the best sound in every room.
What the Kanto YU6 offers: ASR’s measurements give preference scores of 3.37 standalone and 5.98 with an ideal subwoofer, stronger than several smaller lifestyle pairs. Phono input, optical connections and remote control make it useful for a simple multi-source system. The overall response trend is close to level rather than strongly tilted. Watch for: Local response variation remains despite the mild overall tilt: the midrange span is 3.8dB and listening-window narrow-band deviation is 0.419. Bass reaches -3dB around 75Hz, so the preference model’s 58Hz LFX value should not be quoted as full-level bass extension. A subwoofer improves bandwidth but does not remove tonal irregularities.
Buy the KEF LS50 Wireless II if sound quality matters more than the price. Buy the Kanto YU6 if the price matters more than sound quality.
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Specifications Side By Side
| KEF LS50 Wireless II | Kanto YU6 | |
|---|---|---|
| Price | $2,999.00 per pair | $579.99 per pair |
| Ranked | #14 of 65 in Medium Size Powered Bookshelf Speakers | #29 of 65 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) | - |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) | - |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet | Bluetooth aptX, RCA phono preamp, 2x optical |
| Drivers | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter | 1" silk dome tweeter, 5.25" Kevlar woofer |
| App | KEF Connect (placement EQ presets, source selection, firmware updates) | - |
| Bluetooth | Yes, 4.2 | - |
| EQ | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction | - |
| Weight | 44.3 lbs (20.1 kg) for the pair | 11.5 lbs (5.2 kg) (active), 8.6 lbs (3.9 kg) (passive) |
| Amplifier Power | 280W (LF) + 100W (HF) per speaker, bi-amped | 200W peak Class D (100W RMS total) |
| Dimensions | 12" x 7.9" x 12.2" (305 x 200 x 311 mm) each | 6.9W x 8.1D x 10.7H in each |
| Frequency Response | 45Hz - 28kHz ±3dB | - |
| Maximum SPL | 108dB at 1m (manufacturer specified) | - |
| Spinorama Preference Score | 4.52 | 3.37 |
| Spinorama Preference Score with Perfect Sub | 6.59 | 5.98 |
| Subwoofer Output | Yes | Yes |
| Outputs | RCA subwoofer | Subwoofer |
| Enclosure | - | 2-way active, MDF cabinet |
| Bluetooth Codecs | - | SBC, aptX |
| Country | - | Canada (design) |
Related Speaker Comparisons
How KEF LS50 Wireless II compares with other leading options:
- Genelec 8331A vs KEF LS50 Wireless II
- Neumann KH120 MKII vs KEF LS50 Wireless II
- Genelec 8030C vs KEF LS50 Wireless II
- Neumann KH80 DSP vs KEF LS50 Wireless II
- Dynaudio LYD 5 vs KEF LS50 Wireless II
Prices on this page were last checked September 16, 2026 at 12:41 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
KEF LS50 Wireless II: $2,999.00 per pair Amazon KEF Crutchfield eBay
Pros: Erin’s measurements give preference scores of 4.52 standalone and 6.59 with an ideal subwoofer, with a -3dB point around 51Hz. The coincident Uni-Q layout helps preserve tonal consistency across horizontal and vertical listening positions. Low listening-window narrow-band deviation of 0.308 supports relatively clean midrange reproduction. HDMI eARC and streaming functions make it a capable all-in-one stereo system. Measured bass extension of 51.3Hz (-3dB).
Cons: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency. Compact bass drivers limit deep-bass output. App placement adjustments are not the same as microphone-based automatic room correction. The price and primary/secondary architecture are practical trade-offs; neither driver geometry nor a single directivity statistic guarantees the best sound in every room.
Full KEF LS50 Wireless II review and specifications →
| Amplifier Power | 280W (LF) + 100W (HF) per speaker, bi-amped |
|---|---|
| App | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) |
| Bluetooth | Yes, 4.2 |
| Dimensions | 12" x 7.9" x 12.2" (305 x 200 x 311 mm) each |
| Drivers | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| EQ | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Frequency Response | 45Hz - 28kHz ±3dB |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Maximum SPL | 108dB at 1m (manufacturer specified) |
| Outputs | RCA subwoofer |
| Spinorama Preference Score | 4.52 |
| Spinorama Preference Score with Perfect Sub | 6.59 |
| Subwoofer Output | Yes |
| Weight | 44.3 lbs (20.1 kg) for the pair |
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Kanto YU6: $579.99 per pair Amazon eBay
Pros: ASR’s measurements give preference scores of 3.37 standalone and 5.98 with an ideal subwoofer, stronger than several smaller lifestyle pairs. Phono input, optical connections and remote control make it useful for a simple multi-source system. The overall response trend is close to level rather than strongly tilted.
Cons: Local response variation remains despite the mild overall tilt: the midrange span is 3.8dB and listening-window narrow-band deviation is 0.419. Bass reaches -3dB around 75Hz, so the preference model’s 58Hz LFX value should not be quoted as full-level bass extension. A subwoofer improves bandwidth but does not remove tonal irregularities.
Full Kanto YU6 review and specifications →
| Amplifier Power | 200W peak Class D (100W RMS total) |
|---|---|
| Bluetooth Codecs | SBC, aptX |
| Country | Canada (design) |
| Dimensions | 6.9W x 8.1D x 10.7H in each |
| Drivers | 1" silk dome tweeter, 5.25" Kevlar woofer |
| Enclosure | 2-way active, MDF cabinet |
| Inputs | Bluetooth aptX, RCA phono preamp, 2x optical |
| Outputs | Subwoofer |
| Spinorama Preference Score | 3.37 |
| Spinorama Preference Score with Perfect Sub | 5.98 |
| Subwoofer Output | Yes |
| Weight | 11.5 lbs (5.2 kg) (active), 8.6 lbs (3.9 kg) (passive) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons