Short answer: the Devialet Phantom Ultimate 98dB, if you are buying new. The Devialet Phantom II 98 dB ranks higher than the JBL 705P (#11 vs #43 of 108 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.
The Devialet Phantom II 98 dB is the more accurate, deeper-bass choice. A compact wireless streaming speaker with startlingly deep bass for its size and an even, well balanced sound. Its measured preference score, a predictor of how neutral it sounds, is 6.87 against 4.70 for the JBL 705P. Its bass reaches about 30Hz before falling 3dB, against 47.6Hz for the JBL 705P. The tradeoff: Small-enclosure bass extension at the measurement level does not guarantee the same response at high volume.
The case for the JBL 705P: A compact studio monitor with a compression driver tweeter, good bass reach for its size and digital and analog inputs. The tradeoff: The standalone score is 4.70, and a localized cancellation near 750Hz contributes to the large 7.8dB midrange response span.
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 JBL 705P.
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Specifications Side By Side
| Devialet Phantom II 98 dB | JBL 705P | |
|---|---|---|
| Price | $2,998 per pair Discontinued | $2,198 per pair |
| Ranked | #11 of 108 in Medium Size Powered Bookshelf Speakers | #43 of 108 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 30Hz (measured, spinorama.org) | 47.6Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | approximately 22.6Hz (measured, spinorama.org) | 38.9Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Drivers | One aluminum full-range driver; two aluminum bass drivers | 5” woofer, 2409H 1” compression driver |
| Inputs | Wi-Fi, Ethernet, Bluetooth, AirPlay 2, Spotify Connect, UPnP, Roon Ready, analog/optical combo jack | XLR/TRS combo (analog), XLR AES3 (digital) |
| Bluetooth Codecs | SBC, AAC | - |
| Amplifier Power | 400W RMS each | 500W total (250W woofer, 250W tweeter) |
| Dimensions | 6.6 x 6.2 x 8.6 in each | 10.6”H x 5.9”W x 10.8”D (268 x 151 x 274 mm) |
| Weight | 9.5 lbs (4.3 kg) each | 12.6 lbs (5.7 kg) each |
| Maximum SPL | 98dB at 1m each (manufacturer specified) | - |
| Spinorama Preference Score | 6.87 | 4.70 |
| Spinorama Preference Score with Perfect Sub | 7.95 | 6.71 |
| XLR Input | No | Yes |
| RCA Input | No | No |
| TRS Input | No | Yes |
| Optical Input | Yes | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | Yes |
| Aux Input | No | No |
| Bluetooth | Yes | No |
| Frequency Response | 18Hz - 21kHz (-6dB) (Manufacturer specified) | 39Hz - 36kHz (Manufacturer specified) |
| Bluetooth Version | 5.0 | - |
| App | - | No |
| EQ | - | No |
| DSP | - | No |
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