Short answer: the AsciLab F6Bs. It ranks #20 of 130 bookshelf speakers by sound quality at $799; the Sonus Faber Lumina II Amator ranks #106 and costs $2000, so there is little reason to consider the other one.
What the AsciLab F6Bs offers: A slimmer, sealed, VESA 100 wall mountable variant of AsciLab’s F6B, trading the F6B’s passive radiator for a shallower 15.4cm deep cabinet that can go straight on a wall bracket. The sound power directivity index has the tightest standard deviation, 3.32, of anything in this batch of new additions, meaning off axis energy tracks the on axis response unusually consistently for a sealed 2-way this size, and on axis deviation measures a clean 0.25dB average. Watch for: AsciLab’s own site shows the F6Bs sold out, though it remains in stock through resellers like Audiophonics and Tested Audio. Bass extension is measured at 82.0Hz at -3dB, noticeably less than the passive radiator equipped F6B, and listening window smoothness measures only a moderate 0.39. The 4 ohm nominal impedance calls for a reasonably capable amplifier.
What the Sonus Faber Lumina II Amator offers: Solid bass extension for a bookshelf (F3 63Hz, F10 43Hz), reaching about 50Hz in-room. Decent sensitivity and wide, consistent horizontal dispersion (~60-70 degrees) - better directivity than expected for a two-way design. Gorgeous, luxury-grade cabinet design. Watch for: Very bright treble, running 3-6dB above the midrange depending on measurement angle - independently corroborated by other owners online, not just one reviewer’s opinion. Causes audible sibilance and a forward, grainy character. Notably the brightest of three Sonus Faber models Erin’s Audio Corner has tested, even brighter than the brand’s own Sonetto II G2. A mechanical resonance/ringing artifact shows up around 1kHz in measurements. Needs a subwoofer for anything below about 50Hz.
Buy the AsciLab F6Bs. It ranks higher for sound quality than the Sonus Faber Lumina II Amator and costs less, so there is no real case for the other one.
If sound quality matters at all to you, skip the Sonus Faber Lumina II Amator. It ranks near the bottom of the 130 bookshelf speakers, so look higher up the list instead.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| AsciLab F6Bs | Sonus Faber Lumina II Amator | |
|---|---|---|
| Price | €799 per pair | $2000 per pair |
| Ranked | #20 of 130 in Large Size Bookshelf Speakers | #106 of 130 in Large Size Bookshelf Speakers |
| Enclosure | sealed | - |
| Drivers | 1" aluminum dome tweeter with waveguide and phase plug, 6" fiber cone woofer | 1.14" DAD (Damped Apex Dome) tweeter, 5.9" paper cone woofer |
| Dimensions | 14.5"H x 8"W x 6.1"D (368 x 203 x 154 mm) | 12" x 7.1" x 10.4" (304 x 180 x 263 mm) |
| Weight | 12.3 lbs (5.6 kg) each | 12.8 lbs (5.8 kg) |
| Sensitivity | 85.2dB @ 2.83V/1m (measured, Audio Science Review) | 86.9dB (2.83V/1m, measured by Erin's Audio Corner) |
| Impedance | 4 ohms nominal, 3.7 ohms minimum | 4 ohms nominal, 3.9 ohms minimum (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 82.0Hz (measured, Audio Science Review) | 63Hz (measured, Erin's Audio Corner) |
| Bass Extension (-10dB) | 50.1Hz (measured, Audio Science Review) | 43Hz (measured, Erin's Audio Corner) |
| Crossover Frequency | 1kHz | 2600Hz |
| Mounting | VESA 100 wall mount compatible | - |
| Warranty | 2 years | - |
| Country | South Korea | Italy (Vicenza) |
| Maximum SPL | 100dB full bandwidth, 102dB above 100Hz (manufacturer specified) | - |
| Spinorama Preference Score | 4.35 | - |
| Spinorama Preference Score with Perfect Sub | 7.01 | - |
| Frequency Response | - | 55Hz - 24kHz (Manufacturer specified) |
| Woofer Cabinet | - | Bass reflex, ported |
| Recommended Power | - | 30W - 150W |
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Prices on this page were last checked September 16, 2026 at 12:41 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
AsciLab F6Bs: €799 per pair Audiophonics eBay
Pros: A slimmer, sealed, VESA 100 wall mountable variant of AsciLab’s F6B, trading the F6B’s passive radiator for a shallower 15.4cm deep cabinet that can go straight on a wall bracket. The sound power directivity index has the tightest standard deviation, 3.32, of anything in this batch of new additions, meaning off axis energy tracks the on axis response unusually consistently for a sealed 2-way this size, and on axis deviation measures a clean 0.25dB average. Measured bass extension of 82.0Hz (-3dB), with a measured sensitivity of 85.2dB.
Cons: AsciLab’s own site shows the F6Bs sold out, though it remains in stock through resellers like Audiophonics and Tested Audio. Bass extension is measured at 82.0Hz at -3dB, noticeably less than the passive radiator equipped F6B, and listening window smoothness measures only a moderate 0.39. The 4 ohm nominal impedance calls for a reasonably capable amplifier.
Full AsciLab F6Bs review and specifications →
| Bass Extension (-10dB) | 50.1Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 82.0Hz (measured, Audio Science Review) |
| Country | South Korea |
| Crossover Frequency | 1kHz |
| Dimensions | 14.5"H x 8"W x 6.1"D (368 x 203 x 154 mm) |
| Drivers | 1" aluminum dome tweeter with waveguide and phase plug, 6" fiber cone woofer |
| Enclosure | sealed |
| Impedance | 4 ohms nominal, 3.7 ohms minimum |
| Maximum SPL | 100dB full bandwidth, 102dB above 100Hz (manufacturer specified) |
| Mounting | VESA 100 wall mount compatible |
| Sensitivity | 85.2dB @ 2.83V/1m (measured, Audio Science Review) |
| Spinorama Preference Score | 4.35 |
| Spinorama Preference Score with Perfect Sub | 7.01 |
| Warranty | 2 years |
| Weight | 12.3 lbs (5.6 kg) each |
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Sonus Faber Lumina II Amator: $2000 per pair Crutchfield eBay
Pros: Solid bass extension for a bookshelf (F3 63Hz, F10 43Hz), reaching about 50Hz in-room. Decent sensitivity and wide, consistent horizontal dispersion (~60-70 degrees) - better directivity than expected for a two-way design. Gorgeous, luxury-grade cabinet design. Measured bass extension of 63Hz (-3dB), with a measured sensitivity of 86.9dB.
Cons: Very bright treble, running 3-6dB above the midrange depending on measurement angle - independently corroborated by other owners online, not just one reviewer’s opinion. Causes audible sibilance and a forward, grainy character. Notably the brightest of three Sonus Faber models Erin’s Audio Corner has tested, even brighter than the brand’s own Sonetto II G2. A mechanical resonance/ringing artifact shows up around 1kHz in measurements. Needs a subwoofer for anything below about 50Hz.
Full Sonus Faber Lumina II Amator review and specifications →
| Bass Extension (-10dB) | 43Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 63Hz (measured, Erin's Audio Corner) |
| Country | Italy (Vicenza) |
| Crossover Frequency | 2600Hz |
| Dimensions | 12" x 7.1" x 10.4" (304 x 180 x 263 mm) |
| Drivers | 1.14" DAD (Damped Apex Dome) tweeter, 5.9" paper cone woofer |
| Frequency Response | 55Hz - 24kHz (Manufacturer specified) |
| Impedance | 4 ohms nominal, 3.9 ohms minimum (measured, Erin's Audio Corner) |
| Recommended Power | 30W - 150W |
| Sensitivity | 86.9dB (2.83V/1m, measured by Erin's Audio Corner) |
| Weight | 12.8 lbs (5.8 kg) |
| Woofer Cabinet | Bass reflex, ported |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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