These sit in different size classes, so this is not a straight ranking comparison. The Sonus Faber Sonetto III G2 ranks #168 of 188 floorstanding speakers by sound quality at $5,000; the Sonus Faber Sonetto II ranks #173 of 203 bookshelf speakers by sound quality at $2,500.
What the Sonus Faber Sonetto III G2 does well: The slimmest Sonetto G2 tower, a 2.5-way with the range’s 1.1” DAD Arrow Point tweeter, a 6.5” midwoofer and a 6.5” woofer that adds output only in the bass, which is rated to 38Hz. The catch: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Sonetto II G2, which showed an uneven listening window (a 4.25 Spinorama preference score).
What the Sonus Faber Sonetto II does well: A two-way stand-mount with a 6.5” paper pulp woofer, a 29mm silk dome tweeter and a downward-firing port in Sonus Faber’s curved wood cabinet. The catch: The response is uneven (0.53 on-axis deviation), for a preference score of 3.97 that reaches 5.92 with an ideal subwoofer.
One note: the Sonus Faber Sonetto II is discontinued and no longer widely available new. The Sonus Faber Sonetto II’s replacement, the Sonus Faber Sonetto II G2, is still sold new.
Buy the Sonus Faber Sonetto III G2 at $5,000 for a floorstanding speaker, or the Sonus Faber Sonetto II at $2,500 for a bookshelf speaker instead.
Worth knowing: the Sonus Faber Sonetto III G2 has not been measured yet. Its rating is estimated from related models, with a likely range of 2.8 to 3.6, so treat this verdict as provisional.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Sonus Faber Sonetto III G2 | Sonus Faber Sonetto II | |
|---|---|---|
| Price | $5,000.00 per pair | $2,500 per pair Discontinued |
| Ranked | #168 of 188 in Large Size Floorstanding Speakers Estimated | #173 of 203 in Large Size Bookshelf Speakers |
| Drivers | 1.1” (28mm) DAD Arrow Point tweeter, 6.5” midwoofer, 6.5” woofer | 6.5” (165mm) paper pulp woofer, 29mm silk dome tweeter |
| Frequency Response | 38Hz - 40kHz (manufacturer specified) | 42Hz-40kHz (manufacturer specified) |
| Sensitivity | 88dB (2.83V/1m, manufacturer specified) | 87dB (manufacturer specified) |
| Impedance | 4 ohms nominal (manufacturer specified) | 4 ohms |
| Crossover Frequency | 2.7kHz | - |
| Woofer Cabinet | ported, rear and down-firing | ported, downward-firing |
| Dimensions | 42”H x 11.3”W x 13.8”D (1068 x 287 x 350 mm) | 16.3”H x 8.9”W x 13.2”D (414 x 227 x 335 mm) |
| Weight | 56.9 lbs (25.8 kg) each | 22.9 lbs (10.4 kg) each |
| DIY Kit | No | No |
| Bass Extension (-3dB) | - | 58Hz (measured, third-party data via spinorama.org) |
| Bass Extension (-10dB) | - | about 37.3Hz (measured, third-party data via spinorama.org) |
| Spinorama Preference Score | - | 3.97 |
| Spinorama Preference Score with Perfect Sub | - | 5.92 |
Related Speaker Comparisons
More worthwhile head-to-heads for Sonus Faber Sonetto II:
- Sonus Faber Sonetto II G2 vs Sonus Faber Sonetto II
- Sonus Faber Sonetto III G2 vs Sonus Faber Sonetto I G2
- Sonus Faber Sonetto III G2 vs Sonus Faber Sonetto II G2
- Sonus Faber Sonetto V G2 vs Sonus Faber Sonetto II
- Sonus Faber Sonetto I G2 vs Sonus Faber Sonetto II
Prices on this page were last checked October 7, 2026 at 9:25 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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The Two Speakers In Full
Sonus Faber Sonetto III G2: $5,000.00 per pair Estimated Audio Advice eBay
Same family: the Sonus Faber Sonetto I G2 (smaller bookshelf, estimated 3/5), the Sonus Faber Sonetto II G2 (larger bookshelf, rated 3.1/5), the Sonus Faber Sonetto V G2 (larger floorstanding, ranked higher, estimated 3.3/5) and the Sonus Faber Sonetto Center G2 (center, estimated 3/5).
Pros: The slimmest Sonetto G2 tower, a 2.5-way with the range’s 1.1” DAD Arrow Point tweeter, a 6.5” midwoofer and a 6.5” woofer that adds output only in the bass, which is rated to 38Hz. Sensitivity is 88dB, and the concrete base improves stability.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Sonetto II G2, which showed an uneven listening window (a 4.25 Spinorama preference score). The 4 ohm load needs an amplifier comfortable with low impedances.
Full Sonus Faber Sonetto III G2 review and specifications →
| Crossover Frequency | 2.7kHz |
|---|---|
| DIY Kit | No |
| Dimensions | 42”H x 11.3”W x 13.8”D (1068 x 287 x 350 mm) |
| Drivers | 1.1” (28mm) DAD Arrow Point tweeter, 6.5” midwoofer, 6.5” woofer |
| Frequency Response | 38Hz - 40kHz (manufacturer specified) |
| Impedance | 4 ohms nominal (manufacturer specified) |
| Sensitivity | 88dB (2.83V/1m, manufacturer specified) |
| Weight | 56.9 lbs (25.8 kg) each |
| Woofer Cabinet | ported, rear and down-firing |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Sonus Faber Sonetto II: $2,500 per pair Discontinued eBay
Newer model: the Sonus Faber Sonetto II G2, ranked higher, rated 3.1/5.
Pros: A two-way stand-mount with a 6.5” paper pulp woofer, a 29mm silk dome tweeter and a downward-firing port in Sonus Faber’s curved wood cabinet. Measurements show good bass for its size, 58Hz (-3dB) and about 37Hz (-10dB). Measured bass extension of 58Hz (-3dB).
Cons: The response is uneven (0.53 on-axis deviation), for a preference score of 3.97 that reaches 5.92 with an ideal subwoofer. That data is low quality, from a reviewer’s home measurement. The load is 4 ohms. Sonus Faber replaced it with the Sonetto II G2. Discontinued.
Full Sonus Faber Sonetto II review and specifications →
| Bass Extension (-10dB) | about 37.3Hz (measured, third-party data via spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 58Hz (measured, third-party data via spinorama.org) |
| DIY Kit | No |
| Dimensions | 16.3”H x 8.9”W x 13.2”D (414 x 227 x 335 mm) |
| Drivers | 6.5” (165mm) paper pulp woofer, 29mm silk dome tweeter |
| Frequency Response | 42Hz-40kHz (manufacturer specified) |
| Impedance | 4 ohms |
| Sensitivity | 87dB (manufacturer specified) |
| Spinorama Preference Score | 3.97 |
| Spinorama Preference Score with Perfect Sub | 5.92 |
| Weight | 22.9 lbs (10.4 kg) each |
| Woofer Cabinet | ported, downward-firing |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons