Short answer: the Neumann KH120 MKII. It ranks #2 of 65 powered bookshelf speakers by sound quality at $2000; the Devialet Phantom II 98 dB ranks #9 and costs $2998, so there is not much of a tradeoff to weigh.
What the Neumann KH120 MKII offers: ASR’s Klippel data shows exceptional neutrality: only a 1.5dB span from 300Hz to 5kHz and low listening-window narrow-band deviation of 0.208. Scores of 5.75 standalone and 7.70 with an ideal subwoofer place it among the strongest measured options here. Bass reaches -3dB around 45Hz. The review reports very low distortion at 86dB/1m and clean performance outside deep bass at 96dB. Watch for: Vertical crossover interference makes listening height important even though horizontal dispersion is well controlled. A small directivity irregularity remains around 2kHz. Distortion increases below about 50Hz at high output; a subwoofer can extend the system and reduce low-frequency demands. High price, and a flat anechoic response still needs suitable placement in the room.
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.
Buy the Neumann KH120 MKII. It ranks higher for sound quality than the Devialet Phantom II 98 dB and costs less, which settles it without a real tradeoff to make.
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Specifications Side By Side
| Neumann KH120 MKII | Devialet Phantom II 98 dB | |
|---|---|---|
| Price | $2000 per pair | $2,998 per pair |
| Ranked | #2 of 65 in Medium Size Powered Bookshelf Speakers | #9 of 65 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 36Hz (measured, Audio Science Review) | approximately 22.6Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 46Hz (measured, Audio Science Review) | 30Hz (measured, spinorama.org) |
| Dimensions | 11.3"H x 7.2"W x 8.9"D (287 x 182.9 x 226.1 mm) | 6.6 x 6.2 x 8.6 in each |
| Inputs | XLR | Wi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack |
| Drivers | 5.25" woofer, 1" titanium fabric dome tweeter | One aluminum full-range driver; two aluminum bass drivers |
| Weight | 14.6 lbs (6.6 kg) each | 9.5 lbs (4.3 kg) each |
| App | Yes (MA 1 alignment) | - |
| Bluetooth | No | - |
| DSP | Yes | - |
| EQ | Yes (via DSP) | - |
| Frequency Response | 44Hz - 21kHz (±3dB) (Manufacturer specified) | - |
| Amplifier Power | 245W (145W woofer + 100W tweeter) | 400W RMS each |
| Maximum SPL | 116.8dB @ 1m (manufacturer specified) | 98dB at 1m each (manufacturer specified) |
| Spinorama Preference Score | 5.75 | 6.07 |
| Spinorama Preference Score with Perfect Sub | 7.70 | 7.15 |
| Bluetooth Codecs | - | SBC, AAC |
Related Speaker Comparisons
How Neumann KH120 MKII compares with other leading options:
- Genelec 8331A vs Neumann KH120 MKII
- Genelec 8030C vs Neumann KH120 MKII
- Neumann KH120 MKII vs Neumann KH80 DSP
- Neumann KH120 MKII vs Dynaudio LYD 5
- Neumann KH120 MKII vs Genelec 8330A
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The Two Speakers In Full
Neumann KH120 MKII: $2000 per pair B&H Photo Video eBay
Pros: ASR’s Klippel data shows exceptional neutrality: only a 1.5dB span from 300Hz to 5kHz and low listening-window narrow-band deviation of 0.208. Scores of 5.75 standalone and 7.70 with an ideal subwoofer place it among the strongest measured options here. Bass reaches -3dB around 45Hz. The review reports very low distortion at 86dB/1m and clean performance outside deep bass at 96dB. Measured bass extension of 46Hz (-3dB).
Cons: Vertical crossover interference makes listening height important even though horizontal dispersion is well controlled. A small directivity irregularity remains around 2kHz. Distortion increases below about 50Hz at high output; a subwoofer can extend the system and reduce low-frequency demands. High price, and a flat anechoic response still needs suitable placement in the room.
Full Neumann KH120 MKII review and specifications →
| Amplifier Power | 245W (145W woofer + 100W tweeter) |
|---|---|
| App | Yes (MA 1 alignment) |
| Bass Extension (-10dB) | 36Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 46Hz (measured, Audio Science Review) |
| Bluetooth | No |
| DSP | Yes |
| Dimensions | 11.3"H x 7.2"W x 8.9"D (287 x 182.9 x 226.1 mm) |
| Drivers | 5.25" woofer, 1" titanium fabric dome tweeter |
| EQ | Yes (via DSP) |
| Frequency Response | 44Hz - 21kHz (±3dB) (Manufacturer specified) |
| Inputs | XLR |
| Maximum SPL | 116.8dB @ 1m (manufacturer specified) |
| Spinorama Preference Score | 5.75 |
| Spinorama Preference Score with Perfect Sub | 7.70 |
| Weight | 14.6 lbs (6.6 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Neumann KH120 MKII vs Genelec 8030C
- Neumann KH120 MKII vs Genelec 8331A
- Neumann KH120 MKII vs Neumann KH80 DSP
- Neumann KH120 MKII vs Dynaudio LYD 5
- Neumann KH120 MKII vs Genelec 8330A
- Neumann KH120 MKII vs Genelec 8320A
- Neumann KH120 MKII vs Topping MA4
- Neumann KH120 MKII vs Genelec 8020D
- See all 50 comparisons
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