Short answer: the AsciLab F6Bs. It ranks #20 of 222 bookshelf speakers by sound quality (rated 4.5/5); the Sonus Faber Sonetto II G2 ranks #183 (rated 3.1/5).
The Sonus Faber Sonetto II G2 is the deeper-bass pick. An Italian bookshelf speaker with a silk dome tweeter, a stylish concrete and metal base and evenly behaved dispersion. Its bass reaches about 62Hz before falling 3dB, against 82Hz for the AsciLab F6Bs. The catch: Sounds notably bright pointed directly on-axis; toeing the speaker out about 30° reduces treble energy and sibilance meaningfully.
The AsciLab F6Bs is the more accurate choice. A slim, sealed bookshelf speaker that mounts flat on a wall bracket, with accurate sound and wide, even dispersion for a great price. Its measured preference score, a predictor of how neutral it sounds, is 5.24 against 4.25 for the Sonus Faber Sonetto II G2. Watch for: AsciLab’s own site shows the F6Bs sold out, though it remains in stock through resellers like Audiophonics and Tested Audio.
Buy the AsciLab F6Bs. It is rated higher for sound quality than the Sonus Faber Sonetto II G2.
Looking for alternatives? See the complete Passive Home rankings.
An Italian bookshelf speaker with a silk dome tweeter, a stylish concrete and metal base and evenly behaved dispersion.
A slim, sealed bookshelf speaker that mounts flat on a wall bracket, with accurate sound and wide, even dispersion for a great price.
Prices on this page were last checked October 31, 2026 at 7:11 PM 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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Specifications Side By Side
| Sonus Faber Sonetto II G2 | AsciLab F6Bs | |
|---|---|---|
| Price | $3500 per pair | €799 per pair |
| Ranked | #183 of 222 in Large Size Bookshelf Speakers | #20 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Erin’s Audio Corner) | 50.1Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 62Hz (measured, Erin’s Audio Corner) | 82.0Hz (measured, Audio Science Review) |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner) | 4 ohms nominal, 3.7 ohms minimum |
| Sensitivity | 87dB (measured, Erin’s Audio Corner) | 85.2dB @ 2.83V/1m (measured, Audio Science Review) |
| Drivers | 1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter | 1” aluminum dome tweeter with waveguide and phase plug, 6” fiber cone woofer |
| Weight | 38.4 lbs (17.4 kg) | 12.3 lbs (5.6 kg) each |
| Dimensions | 16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm) | 14.5”H x 8”W x 6.1”D (368 x 203 x 154 mm) |
| Woofer Cabinet | ported, front | - |
| Spinorama Preference Score | 4.25 | 5.24 |
| Spinorama Preference Score with Perfect Sub | 6.54 | 7.90 |
| DIY Kit | No | No |
| Enclosure | - | sealed |
| Crossover Frequency | - | 1kHz |
| Mounting | - | VESA 100 wall mount compatible |
| Warranty | - | 2 years |
| Country | - | South Korea |
| Maximum SPL | - | 100dB full bandwidth, 102dB above 100Hz (manufacturer specified) |
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