Devialet Phantom II 98 dB vs Genelec 8330A

Last updated: September 16, 2026

Short answer: the Genelec 8330A. It ranks #7 of 65 powered bookshelf speakers by sound quality at $1125; the Devialet Phantom II 98 dB ranks #9 and costs $2998, so there is not much of a tradeoff to weigh.

Devialet Phantom II 98 dB vs Genelec 8330A

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 Genelec 8330A offers: ASR’s measurements give a 2.3dB midrange response span and a -3dB point around 56Hz. Scores of 4.78 standalone and 7.03 with an ideal subwoofer indicate solid tonal accuracy, while deeper bass than the 8320A helps without a sub. GLM calibration, the waveguide and rounded aluminum enclosure make it a practical compact studio system. Watch for: The listening-window response has more local variation than the 8030C or KH80 in the selected measurements, so DSP capability should not be mistaken for superior native neutrality. GLM calibration hardware costs extra. Small-driver bass headroom remains finite, and neither the modeled ideal-subwoofer score nor the fitted bass Q establishes maximum output or freedom from resonances.

Buy the Genelec 8330A. It ranks higher for sound quality than the Devialet Phantom II 98 dB and costs less, so there is no real case for the other one.

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Specifications Side By Side

Devialet Phantom II 98 dB Genelec 8330A
Price$2,998 per pair$2,250 per pair
Ranked#9 of 65 in Medium Size Powered Bookshelf Speakers#7 of 65 in Medium Size Powered Bookshelf Speakers
Bass Extension (-3dB)30Hz (measured, spinorama.org)55.7Hz (measured, Audio Science Review)
Bass Extension (-10dB)approximately 22.6Hz (measured, spinorama.org)44.9Hz (measured, Audio Science Review)
DriversOne aluminum full-range driver; two aluminum bass drivers0.75" metal dome tweeter, 5.1" cone woofer
InputsWi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack-
Bluetooth CodecsSBC, AAC-
Amplifier Power400W RMS each100W total (50W woofer, 50W tweeter, Class D)
Dimensions6.6 x 6.2 x 8.6 in each11.8"H x 7.4"W x 7"D (299 x 189 x 178 mm)
Weight9.5 lbs (4.3 kg) each11.2 lbs (5.1 kg) each
Maximum SPL98dB at 1m each (manufacturer specified)104dB (manufacturer specified)
Spinorama Preference Score6.074.78
Spinorama Preference Score with Perfect Sub7.157.03
Enclosure-ported
Frequency Response-45Hz-23kHz -6dB
Warranty-2 years (5 with product registration)
Country-Finland

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The Two Speakers In Full

Devialet Phantom II 98 dB: $2,998 per pair Devialet eBay

Devialet Phantom II 98 dB ranking card

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.

Amplifier Power400W RMS each
Bass Extension (-10dB)approximately 22.6Hz (measured, spinorama.org)
Bass Extension (-3dB)30Hz (measured, spinorama.org)
Bluetooth CodecsSBC, AAC
Dimensions6.6 x 6.2 x 8.6 in each
DriversOne aluminum full-range driver; two aluminum bass drivers
InputsWi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack
Maximum SPL98dB at 1m each (manufacturer specified)
Spinorama Preference Score6.07
Spinorama Preference Score with Perfect Sub7.15
Weight9.5 lbs (4.3 kg) each

Genelec 8330A: $2,250 per pair B&H Photo Video eBay

Genelec 8330A ranking card

Pros: ASR’s measurements give a 2.3dB midrange response span and a -3dB point around 56Hz. Scores of 4.78 standalone and 7.03 with an ideal subwoofer indicate solid tonal accuracy, while deeper bass than the 8320A helps without a sub. GLM calibration, the waveguide and rounded aluminum enclosure make it a practical compact studio system. Measured bass extension of 55.7Hz (-3dB).

Cons: The listening-window response has more local variation than the 8030C or KH80 in the selected measurements, so DSP capability should not be mistaken for superior native neutrality. GLM calibration hardware costs extra. Small-driver bass headroom remains finite, and neither the modeled ideal-subwoofer score nor the fitted bass Q establishes maximum output or freedom from resonances.

Amplifier Power100W total (50W woofer, 50W tweeter, Class D)
Bass Extension (-10dB)44.9Hz (measured, Audio Science Review)
Bass Extension (-3dB)55.7Hz (measured, Audio Science Review)
CountryFinland
Dimensions11.8"H x 7.4"W x 7"D (299 x 189 x 178 mm)
Drivers0.75" metal dome tweeter, 5.1" cone woofer
Enclosureported
Frequency Response45Hz-23kHz -6dB
Maximum SPL104dB (manufacturer specified)
Spinorama Preference Score4.78
Spinorama Preference Score with Perfect Sub7.03
Warranty2 years (5 with product registration)
Weight11.2 lbs (5.1 kg) each