Neumann KH80 DSP vs Devialet Phantom II 98 dB

Last updated: October 9, 2026

Short answer: the Neumann KH80 DSP. It ranks #4 of 100 powered bookshelf speakers by sound quality (rated 4.6/5) at $1,197.96 and is still sold new; the Devialet Phantom II 98 dB ranks #10 (rated 4.4/5) and is discontinued, so it is only an option used. The Devialet Phantom II 98 dB’s replacement, the Devialet Phantom Ultimate 98dB, is rated 4.4/5.

Neumann KH80 DSP vs Devialet Phantom II 98 dB

What the Neumann KH80 DSP does well: ASR’s selected Klippel measurement has a 1.4dB midrange response span and virtually no overall on-axis tilt. The catch: Bass reaches -3dB around 59Hz in this measurement, less deep than the KH120 II.

The Devialet Phantom II 98 dB is the more accurate, deeper-bass pick. The manufacturer-supplied measurement shows unusually deep bass for the enclosure size: -3dB at 30Hz. Its measured preference score, a predictor of how neutral it sounds, is 6.87 against 5.89 for the Neumann KH80 DSP. Its bass reaches about 30Hz before falling 3dB, against 57Hz for the Neumann KH80 DSP. The catch: Small-enclosure bass extension at the measurement level does not guarantee the same response at high volume.

Buy the Neumann KH80 DSP. It is rated higher for sound quality; the Devialet Phantom II 98 dB is no longer sold new.

Still deciding? The full Powered Home rankings cover every ranked option.

Specifications Side By Side

Neumann KH80 DSP Devialet Phantom II 98 dB
Price$1,197.96 per pair$2,998 per pair Discontinued
Ranked#4 of 100 in Medium Size Powered Bookshelf Speakers#10 of 100 in Medium Size Powered Bookshelf Speakers
Dimensions13.6”H x 10.8”W x 9.6”D (345.4 x 274.3 x 243.8 mm)6.6 x 6.2 x 8.6 in each
Frequency Response57 Hz - 25 kHz (+-3 dB) (Manufacturer specified)18Hz - 21kHz (-6dB) (Manufacturer specified)
InputsXLRWi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack
Weight9 lbs (4.1 kg) each9.5 lbs (4.3 kg) each
Drivers4.1” woofer, 1” fabric dome tweeterOne aluminum full-range driver; two aluminum bass drivers
AppYes (MA 1 alignment)-
Bass Extension (-10dB)51Hz (measured, Erin’s Audio Corner)approximately 22.6Hz (measured, spinorama.org)
Bass Extension (-3dB)57Hz (measured, Erin’s Audio Corner)30Hz (measured, spinorama.org)
BluetoothNoYes
DSPYes-
EQYes (via DSP)-
Sensitivity91.9dB (measured at 0.3V/1m, Erin’s Audio Corner)-
Amplifier Power140W (90W woofer + 50W tweeter)400W RMS each
Maximum SPL110.7dB @ 1m (manufacturer specified)98dB at 1m each (manufacturer specified)
Spinorama Preference Score5.896.87
Spinorama Preference Score with Perfect Sub8.257.95
XLR InputYesNo
RCA InputNoNo
TRS InputNoNo
Optical InputNoYes
Coaxial InputNoNo
USB InputNoNo
HDMI InputNoNo
AES InputNoNo
Aux InputNoNo
Bluetooth Codecs-SBC, AAC

More worthwhile head-to-heads for Neumann KH80 DSP:

Prices on this page were last checked October 9, 2026 at 8:01 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

Neumann KH80 DSP: $1,197.96 per pair Amazon B&H Photo Video eBay

Neumann KH80 DSP ranking card

Same family: the Neumann KH120 MKII (larger bookshelf, ranked higher, rated 4.7/5), the Neumann KH 150 (larger bookshelf, rated 4.8/5), the Neumann KH 310 A (larger bookshelf, rated 4.6/5), the Neumann KH420 (larger bookshelf, rated 4.8/5) and the Neumann KH 750 DSP (subwoofer, rated 3.5/5).

Pros: ASR’s selected Klippel measurement has a 1.4dB midrange response span and virtually no overall on-axis tilt. Scores of 5.89 standalone and 8.25 with an ideal subwoofer indicate excellent tonal accuracy in a compact monitor. The waveguide and steep crossover provide useful control of reflected sound, while placement filters help compensate for a desk or nearby boundaries. Existing multitone testing supports good moderate-level clarity. Measured bass extension of 57Hz (-3dB), with a measured sensitivity of 91.9dB.

Cons: Bass reaches -3dB around 59Hz in this measurement, less deep than the KH120 II. Output protection and increasing multitone distortion limit loud listening, especially in the bass. Room reflections and listening distance can alter perceived treble balance despite its flat direct response. Calibration equipment adds to the cost; the preference score is not a measurement of maximum clean output. It is expensive for its size.

AES InputNo
Amplifier Power140W (90W woofer + 50W tweeter)
AppYes (MA 1 alignment)
Aux InputNo
Bass Extension (-10dB)51Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)57Hz (measured, Erin’s Audio Corner)
BluetoothNo
Coaxial InputNo
DSPYes
Dimensions13.6”H x 10.8”W x 9.6”D (345.4 x 274.3 x 243.8 mm)
Drivers4.1” woofer, 1” fabric dome tweeter
EQYes (via DSP)
Frequency Response57 Hz - 25 kHz (+-3 dB) (Manufacturer specified)
HDMI InputNo
InputsXLR
Maximum SPL110.7dB @ 1m (manufacturer specified)
Optical InputNo
RCA InputNo
Sensitivity91.9dB (measured at 0.3V/1m, Erin’s Audio Corner)
Spinorama Preference Score5.89
Spinorama Preference Score with Perfect Sub8.25
TRS InputNo
USB InputNo
Weight9 lbs (4.1 kg) each
XLR InputYes

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

Devialet Phantom II 98 dB ranking card

Newer model: the Devialet Phantom Ultimate 98dB, ranked lower, estimated 4.4/5.

Pros: The manufacturer-supplied measurement shows unusually deep bass for the enclosure size: -3dB at 30Hz. Scores of 6.87 standalone and 7.95 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. Discontinued.

AES InputNo
Amplifier Power400W RMS each
Aux InputNo
Bass Extension (-10dB)approximately 22.6Hz (measured, spinorama.org)
Bass Extension (-3dB)30Hz (measured, spinorama.org)
BluetoothYes
Bluetooth CodecsSBC, AAC
Coaxial InputNo
Dimensions6.6 x 6.2 x 8.6 in each
DriversOne aluminum full-range driver; two aluminum bass drivers
Frequency Response18Hz - 21kHz (-6dB) (Manufacturer specified)
HDMI InputNo
InputsWi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack
Maximum SPL98dB at 1m each (manufacturer specified)
Optical InputYes
RCA InputNo
Spinorama Preference Score6.87
Spinorama Preference Score with Perfect Sub7.95
TRS InputNo
USB InputNo
Weight9.5 lbs (4.3 kg) each
XLR InputNo