Short answer: the Devialet Phantom II 98 dB for better sound quality, the Kanto YU6 for the lower price. The Devialet Phantom II 98 dB ranks #9 of 65 powered bookshelf speakers at $2998. The Kanto YU6 ranks #29 at $579.99, $2418.01 cheaper.
What the Devialet Phantom II 98 dB offers: The manufacturer-supplied measurement shows unusually deep bass for the enclosure size: -3dB at 30Hz. Scores of 6.07 standalone and 7.15 with an ideal subwoofer suggest that its appeal is not limited to bass quantity. Integrated amplification and network playback can replace several components, and its 2.3dB midrange response span is reasonably even. Watch for: Small-enclosure bass extension at the measurement level does not guarantee the same response at high volume. Stereo requires two units, and the integrated architecture offers less system flexibility than conventional monitors.
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 Devialet Phantom II 98 dB 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
| Devialet Phantom II 98 dB | Kanto YU6 | |
|---|---|---|
| Price | $2,998 per pair | $579.99 per pair |
| Ranked | #9 of 65 in Medium Size Powered Bookshelf Speakers | #29 of 65 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 30Hz (measured, spinorama.org) | - |
| Bass Extension (-10dB) | approximately 22.6Hz (measured, spinorama.org) | - |
| Drivers | One aluminum full-range driver; two aluminum bass drivers | 1" silk dome tweeter, 5.25" Kevlar woofer |
| Inputs | Wi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack | Bluetooth aptX, RCA phono preamp, 2x optical |
| Bluetooth Codecs | SBC, AAC | SBC, aptX |
| Amplifier Power | 400W RMS each | 200W peak Class D (100W RMS total) |
| Dimensions | 6.6 x 6.2 x 8.6 in each | 6.9W x 8.1D x 10.7H in each |
| Weight | 9.5 lbs (4.3 kg) each | 11.5 lbs (5.2 kg) (active), 8.6 lbs (3.9 kg) (passive) |
| Maximum SPL | 98dB at 1m each (manufacturer specified) | - |
| Spinorama Preference Score | 6.07 | 3.37 |
| Spinorama Preference Score with Perfect Sub | 7.15 | 5.98 |
| Enclosure | - | 2-way active, MDF cabinet |
| Country | - | Canada (design) |
| Subwoofer Output | - | Yes |
| Outputs | - | Subwoofer |
Related Speaker Comparisons
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- Genelec 8030C vs Devialet Phantom II 98 dB
- Neumann KH80 DSP vs Devialet Phantom II 98 dB
- Devialet Phantom II 98 dB vs Dynaudio LYD 5
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
Devialet Phantom II 98 dB: $2,998 per pair Devialet eBay
Pros: The manufacturer-supplied measurement shows unusually deep bass for the enclosure size: -3dB at 30Hz. Scores of 6.07 standalone and 7.15 with an ideal subwoofer suggest that its appeal is not limited to bass quantity. Integrated amplification and network playback can replace several components, and its 2.3dB midrange response span is reasonably even. Measured bass extension of 30Hz (-3dB).
Cons: Small-enclosure bass extension at the measurement level does not guarantee the same response at high volume. Stereo requires two units, and the integrated architecture offers less system flexibility than conventional monitors.
Full Devialet Phantom II 98 dB review and specifications →
| Amplifier Power | 400W RMS each |
|---|---|
| Bass Extension (-10dB) | approximately 22.6Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 30Hz (measured, spinorama.org) |
| Bluetooth Codecs | SBC, AAC |
| Dimensions | 6.6 x 6.2 x 8.6 in each |
| Drivers | One aluminum full-range driver; two aluminum bass drivers |
| Inputs | Wi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack |
| Maximum SPL | 98dB at 1m each (manufacturer specified) |
| Spinorama Preference Score | 6.07 |
| Spinorama Preference Score with Perfect Sub | 7.15 |
| Weight | 9.5 lbs (4.3 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Devialet Phantom II 98 dB vs Genelec 8020D
- Devialet Phantom II 98 dB vs Genelec 8330A
- Devialet Phantom II 98 dB vs Klipsch The Fives
- Devialet Phantom II 98 dB vs Dynaudio LYD 5
- Devialet Phantom II 98 dB vs JBL 305P MKII
- Devialet Phantom II 98 dB vs Neumann KH80 DSP
- Devialet Phantom II 98 dB vs KEF LS50 Wireless II
- Devialet Phantom II 98 dB vs Genelec 8030C
- See all 37 comparisons
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