Short answer: the Devialet Phantom II 98 dB for better sound quality, the Kali Audio IN-UNF for the lower price. The Devialet Phantom II 98 dB ranks #9 of 65 powered bookshelf speakers at $2998. The Kali Audio IN-UNF ranks #55 at $699, $2299 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 Kali Audio IN-UNF offers: A specialized ultra-nearfield system with coaxial satellites and an opposed-woofer bass module designed to sit on the desk. Erin found it worked much better when positioned using Kali’s placement template, with useful agreement between the intended response and close-range moving-microphone measurements. DSP placement controls and varied inputs make it a thoughtful solution for the right desk. Watch for: The intended desk geometry is part of the acoustic design. The bass module and prescribed spacing occupy considerable desk space and may conflict with large monitors. It is not designed for arbitrary room placement.
Buy the Devialet Phantom II 98 dB when sound quality outweighs the price for you, and the Kali Audio IN-UNF when the price outweighs sound quality instead.
The Kali Audio IN-UNF is not a sound-quality pick. It sits near the bottom of the 65 powered bookshelf speakers; there are better options higher up.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| Devialet Phantom II 98 dB | Kali Audio IN-UNF | |
|---|---|---|
| Price | $2,998 per pair | $699 per pair |
| Ranked | #9 of 65 in Medium Size Powered Bookshelf Speakers | #55 of 65 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 30Hz (measured, spinorama.org) | 47Hz (manufacturer specified; Erin did not publish an anechoic F3) |
| Bass Extension (-10dB) | approximately 22.6Hz (measured, spinorama.org) | 39Hz (manufacturer specified; Erin did not publish an anechoic F10) |
| Drivers | One aluminum full-range driver; two aluminum bass drivers | Bass module: two opposed 4.5" woofers; satellites: 4" coincident midrange with 1" textile-dome tweeter |
| Inputs | Wi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack | USB-C, optical, 3.5mm, balanced TRS |
| Bluetooth Codecs | SBC, AAC | - |
| Amplifier Power | 400W RMS each | 100W LF + 60W mid/HF per channel (continuous) |
| Dimensions | 6.6 x 6.2 x 8.6 in each | Bass module: 11.6"H x 19.4"W x 5.25"D; satellites: 6.25" diameter |
| Weight | 9.5 lbs (4.3 kg) each | - |
| Maximum SPL | 98dB at 1m each (manufacturer specified) | 103dB peak at 1m (manufacturer specified) |
| Spinorama Preference Score | 6.07 | - |
| Spinorama Preference Score with Perfect Sub | 7.15 | - |
| Frequency Response | - | 47Hz - 21kHz +/-3dB (manufacturer specified) |
| Crossover Frequency | - | 280Hz LF-to-midrange; 2.8kHz midrange-to-HF |
| DSP | - | Yes (placement/boundary and tonal trims) |
| Bluetooth | - | No |
Related Speaker Comparisons
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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
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- Devialet Phantom II 98 dB vs Dynaudio LYD 5
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Kali Audio IN-UNF: $699 per pair Kali Audio eBay
Pros: A specialized ultra-nearfield system with coaxial satellites and an opposed-woofer bass module designed to sit on the desk. Erin found it worked much better when positioned using Kali’s placement template, with useful agreement between the intended response and close-range moving-microphone measurements. DSP placement controls and varied inputs make it a thoughtful solution for the right desk.
Cons: The intended desk geometry is part of the acoustic design. The bass module and prescribed spacing occupy considerable desk space and may conflict with large monitors. It is not designed for arbitrary room placement.
Full Kali Audio IN-UNF review and specifications →
| Amplifier Power | 100W LF + 60W mid/HF per channel (continuous) |
|---|---|
| Bass Extension (-10dB) | 39Hz (manufacturer specified; Erin did not publish an anechoic F10) |
| Bass Extension (-3dB) | 47Hz (manufacturer specified; Erin did not publish an anechoic F3) |
| Bluetooth | No |
| Crossover Frequency | 280Hz LF-to-midrange; 2.8kHz midrange-to-HF |
| DSP | Yes (placement/boundary and tonal trims) |
| Dimensions | Bass module: 11.6"H x 19.4"W x 5.25"D; satellites: 6.25" diameter |
| Drivers | Bass module: two opposed 4.5" woofers; satellites: 4" coincident midrange with 1" textile-dome tweeter |
| Frequency Response | 47Hz - 21kHz +/-3dB (manufacturer specified) |
| Inputs | USB-C, optical, 3.5mm, balanced TRS |
| Maximum SPL | 103dB peak at 1m (manufacturer specified) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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