Short answer: the Devialet Phantom Ultimate 98dB, if you are buying new. The Devialet Phantom II 98 dB ranks higher than the Adam Audio T5V (#10 vs #37 of 100 powered bookshelf speakers) but is discontinued; its replacement, the Devialet Phantom Ultimate 98dB, is rated 4.4/5 at $3,998 and is still sold new.
What the Adam Audio T5V does well: ASR’s data shows a small 2.0dB span from 300Hz to 5kHz, a -3dB point around 59Hz, and scores of 4.65 standalone and 7.02 with an ideal subwoofer. The tradeoff: The response rises toward the treble by about 0.56dB per octave, so the small midrange span should not be mistaken for flat full-band response.
The Devialet Phantom II 98 dB is the more accurate, deeper-bass option. 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 4.65 for the Adam Audio T5V. Its bass reaches about 30Hz before falling 3dB, against 58.6Hz for the Adam Audio T5V. The tradeoff: Small-enclosure bass extension at the measurement level does not guarantee the same response at high volume.
Buy the Devialet Phantom Ultimate 98dB, the replacement for the discontinued Devialet Phantom II 98 dB; it is rated higher for sound quality than the Adam Audio T5V.
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Specifications Side By Side
| Adam Audio T5V | Devialet Phantom II 98 dB | |
|---|---|---|
| Price | $451.16 per pair | $2,998 per pair Discontinued |
| Ranked | #37 of 100 in Medium Size Powered Bookshelf Speakers | #10 of 100 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 58.6Hz (measured, Audio Science Review) | 30Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 45.9Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | approximately 22.6Hz (measured, spinorama.org) |
| Dimensions | 11.7”H x 7”W x 11.7”D (297.2 x 177.8 x 297.2 mm) | 6.6 x 6.2 x 8.6 in each |
| Frequency Response | 58Hz - 24kHz (-3dB) (Manufacturer specified) | 18Hz - 21kHz (-6dB) (Manufacturer specified) |
| Inputs | XLR, RCA | Wi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack |
| Weight | 12.6 lbs (5.7 kg) each | 9.5 lbs (4.3 kg) each |
| Drivers | 5” (127mm) woofer | One aluminum full-range driver; two aluminum bass drivers |
| App | No | - |
| Bluetooth | No | Yes |
| EQ | Yes (Room adjustment) | - |
| Amplifier Power | 70w Per Speaker | 400W RMS each |
| Spinorama Preference Score | 4.65 | 6.87 |
| Spinorama Preference Score with Perfect Sub | 7.02 | 7.95 |
| XLR Input | Yes | No |
| RCA Input | Yes | No |
| TRS Input | No | No |
| Optical Input | No | Yes |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Bluetooth Codecs | - | SBC, AAC |
| Maximum SPL | - | 98dB at 1m each (manufacturer specified) |
Related Speaker Comparisons
How Devialet Phantom II 98 dB compares with other leading options:
- Genelec 8331A vs Devialet Phantom II 98 dB
- Neumann KH120 MKII vs Devialet Phantom II 98 dB
- 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 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
Adam Audio T5V: $451.16 per pair Amazon eBay
Same family: the Adam Audio T7V (larger bookshelf, rated 3.9/5) and the Adam Audio T8V (larger bookshelf, rated 3.9/5).
Pros: ASR’s data shows a small 2.0dB span from 300Hz to 5kHz, a -3dB point around 59Hz, and scores of 4.65 standalone and 7.02 with an ideal subwoofer. It offers useful bass and midrange performance for an affordable studio monitor. Rear tonal trims allow broad placement adjustment. Measured bass extension of 58.6Hz (-3dB).
Cons: The response rises toward the treble by about 0.56dB per octave, so the small midrange span should not be mistaken for flat full-band response. Upper-frequency unevenness remains, and a shelving control cannot precisely remove every peak. The existing review finds distortion reasonable for the price rather than reference-class; deeper bass and demanding levels still call for more capable hardware.
Full Adam Audio T5V review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 70w Per Speaker |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 45.9Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 58.6Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 11.7”H x 7”W x 11.7”D (297.2 x 177.8 x 297.2 mm) |
| Drivers | 5” (127mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 58Hz - 24kHz (-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, RCA |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 4.65 |
| Spinorama Preference Score with Perfect Sub | 7.02 |
| TRS Input | No |
| USB Input | No |
| Weight | 12.6 lbs (5.7 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements More from Audio Science Review →
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- DSAUDIO.review: DSAUDIO.review Adam Audio A5X vs Adam Audio T5V sound.DEMO
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- DSAUDIO.review: Adam Audio T5V vs Presonus Eris E5 5 Track Comparison
- DSAUDIO.review: KRK Rokit 5 G4 RP5G4 vs Adam Audio T5V Sound & Frequency Response Comparison
- DSAUDIO.review: Bright and brighter. PreSonus E5 XT takes on Adam Audio T5V SOUND & FREQUENCY RESPONSE COMPARISON
- DSAUDIO.review: Adam Audio T5V vs Adam Audio T7V Sound & Frequency Response Comparison
- Audio Science Review Measurements (spinorama.org)
- Jasper Tech: Best Desktop Computer Speakers for Every Budget – 2026 More from Jasper Tech →
- Jasper Tech: Are the iLoud Micro Monitor Pro the Best Studio Monitor Speakers for your Home Studio?
- Head-to-Head Comparisons
Devialet Phantom II 98 dB: $2,998 per pair Discontinued Devialet eBay
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.
Full Devialet Phantom II 98 dB review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 400W RMS each |
| Aux Input | No |
| Bass Extension (-10dB) | approximately 22.6Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 30Hz (measured, spinorama.org) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Coaxial Input | No |
| Dimensions | 6.6 x 6.2 x 8.6 in each |
| Drivers | One aluminum full-range driver; two aluminum bass drivers |
| Frequency Response | 18Hz - 21kHz (-6dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | Wi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack |
| Maximum SPL | 98dB at 1m each (manufacturer specified) |
| Optical Input | Yes |
| RCA Input | No |
| Spinorama Preference Score | 6.87 |
| Spinorama Preference Score with Perfect Sub | 7.95 |
| TRS Input | No |
| USB Input | No |
| Weight | 9.5 lbs (4.3 kg) each |
| XLR Input | No |
- 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 8320A
- Devialet Phantom II 98 dB vs Genelec 8330A
- Devialet Phantom II 98 dB vs Dynaudio LYD 5
- Devialet Phantom II 98 dB vs Neumann KH80 DSP
- Devialet Phantom II 98 dB vs Klipsch The Fives
- Devialet Phantom II 98 dB vs JBL 305P MKII
- Devialet Phantom II 98 dB vs Genelec 8030C
- See all 39 comparisons