Short answer: the Dynaudio Special Forty for better sound quality, the Sonus Faber Lumina II for the lower price. The Dynaudio Special Forty ranks #61 of 100 bookshelf speakers at $3600. The Sonus Faber Lumina II ranks #66 at $1600, $2000 cheaper.
The case for the Dynaudio Special Forty: Smooth, “buttery” overall tonal character consistent with Dynaudio’s house sound. The tradeoff: A glaring, sometimes sibilant quality around 3-4kHz was the most noticeable issue in listening, the one thing the reviewer would want notched out with EQ.
What the Sonus Faber Lumina II offers: Handmade in Italy with a gloss-finished front baffle and black leather-wrapped cabinet - genuinely nice-looking speaker with real brand cachet. Watch for: Not a neutral speaker - has a persistent high-frequency boost/lift that makes it sound forward and bright, present whether pointed directly at the listener or toed out.
Buy the Dynaudio Special Forty if sound quality matters more than the price. Buy the Sonus Faber Lumina II if the price matters more than sound quality.
Specifications Side By Side
| Dynaudio Special Forty | Sonus Faber Lumina II | |
|---|---|---|
| Price | $3600 | $1600 |
| Ranked | #61 of 100 in Large Size Bookshelf Speakers | #66 of 100 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) | 41Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Erin’s Audio Corner) |
| Dimensions | 14.1"H x 7.7"W x 12.1"D (358.1 x 195.6 x 307.3 mm) | 12"H x 7.1"W x 10.3"D (304 x 180 x 263mm) |
| Impedance | 6 ohms nominal (4.9 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 4 ohms nominal, 4.1 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) | 86dB (measured average, Erin’s Audio Corner; matches manufacturer spec) |
| Drivers | 5.9" MSP (Magnesium Silicate Polymer) cone woofer, 1" Esotar soft dome tweeter | 29mm DAD dome tweeter, 150mm paper cone mid-woofer |
| Weight | 17.9 lbs / 8.1 kg each | 12.5 lbs (12.5 lbs / 5.65 kg) each |
| Woofer Cabinet | ported | - |
| Crossover Frequency | - | 1800Hz |
| Frequency Response | - | 55Hz - 24kHz (manufacturer specified) |
| Recommended Power | - | 30W - 150W |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Focal Aria 906 vs Sonus Faber Sonetto II G2
- KEF R3 Meta vs Focal Aria 906
- McIntosh XR50 vs Audio Craftsmen Victoria
- Wharfedale Linton 85 vs Dynaudio Special Forty
- Sonus Faber Lumina II vs Sonus Faber Sonetto II G2
The Two Speakers In Full
Dynaudio Special Forty: $3600 Safeandsoundhq
Pros: Smooth, “buttery” overall tonal character consistent with Dynaudio’s house sound. Surprisingly precise, focused imaging despite wide horizontal radiation (about ±70°) - atypical, since wide-radiating speakers usually sacrifice some image precision in reflective rooms. Strong output capability: reached 100-101dB average at 3.5 meters with no audible distortion or woofer distress, and compression testing at 102dB shows the cabinet holding up mechanically well at extreme output. Bass reaches a genuine 50Hz (potentially 40Hz) in most rooms from a rear-ported design. Distortion stays below 1% at 86dB and doesn’t cross 3% THD until about 50Hz even at 96dB. Extra weight and impact on snares and percussion around 700-800Hz that the reviewer found appealing on many tracks.
Cons: A glaring, sometimes sibilant quality around 3-4kHz was the most noticeable issue in listening, the one thing the reviewer would want notched out with EQ. Multiple enclosure resonances appear between 500Hz-1kHz across on-axis, listening window, early-reflections, and sound-power measurements, corroborated by independent third-party CSD data showing similar 500-800Hz cabinet resonances. A dip around 1.2kHz traces to a cone-edge-to-surround compliance mismatch in the driver itself (confirmed by testing the bare driver’s impedance) - a known artifact common to many similarly-sized drivers across several manufacturers, contributing to elevated second-order distortion in that region. A somewhat laid-back, recessed 1-2kHz character (sometimes described as a “BBC dip”) gives an overall subdued quality that isn’t overtly problematic but shapes the tonal balance. Impedance drops below 3 ohms in the 100-200Hz region, requiring a genuinely 4-ohm-stable amplifier rather than an AVR. Rear port means it can’t be placed directly against a wall.
Full Dynaudio Special Forty review and specifications →
| Bass Extension (-10dB) | 39Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 54Hz (measured, Erin's Audio Corner) |
| Dimensions | 14.1"H x 7.7"W x 12.1"D (358.1 x 195.6 x 307.3 mm) |
| Drivers | 5.9" MSP (Magnesium Silicate Polymer) cone woofer, 1" Esotar soft dome tweeter |
| Impedance | 6 ohms nominal (4.9 ohms minimum above 80Hz, measured, Erin's Audio Corner) |
| Sensitivity | 83.5dB (measured, Erin's Audio Corner; 86dB manufacturer specified) |
| Weight | 17.9 lbs / 8.1 kg each |
| Woofer Cabinet | ported |
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- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Dynaudio Special Forty vs ELAC Debut 2.0 B6.2
- Dynaudio Special Forty vs SVS Prime Bookshelf
- Dynaudio Special Forty vs Infinity IL10
- Dynaudio Special Forty vs KEF Q3 Meta
- Dynaudio Special Forty vs Polk Monitor XT20
- Dynaudio Special Forty vs Behringer B2030P
- Dynaudio Special Forty vs JBL Studio 630
- Dynaudio Special Forty vs Focal Aria 906
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Sonus Faber Lumina II: $1600 Crutchfield
Pros: Handmade in Italy with a gloss-finished front baffle and black leather-wrapped cabinet - genuinely nice-looking speaker with real brand cachet. Bass extension is competitive for the size, reaching about 50 Hz in-room with mild compression and good distortion figures, so higher output levels and greater listening distances aren’t a problem down to that point. About 20 dB of dynamic range at typical listening levels (73 dB at 4m), which comfortably covers most music without the tonal balance shifting as instruments and vocals peak. Off-axis behavior is consistent - toeing the speakers 20-30 degrees out doesn’t meaningfully change the in-room high-frequency character, so placement flexibility is good once you’ve dialed in the tonal balance.
Cons: Not a neutral speaker - has a persistent high-frequency boost/lift that makes it sound forward and bright, present whether pointed directly at the listener or toed out. A slightly nasal quality traced to a resonance around 1 kHz that EQ can address. The reviewer needed to trim treble by about 4 dB on his preamp to get the tonal balance he wanted, meaning most listeners will want equalization available to fully enjoy this speaker. At roughly the same $1,000ish price point, alternatives like the Ascend Acoustics Sierra 1 V2 measure more linear (with a tradeoff in distortion and crossover-region directivity), and the Dynaudio Emit 20 offers deeper bass extension and lower compression at the cost of a more deliberately colored tonal signature.
Full Sonus Faber Lumina II review and specifications →
| Bass Extension (-10dB) | 41Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 60Hz (measured, Erin's Audio Corner) |
| Crossover Frequency | 1800Hz |
| Dimensions | 12"H x 7.1"W x 10.3"D (304 x 180 x 263mm) |
| Drivers | 29mm DAD dome tweeter, 150mm paper cone mid-woofer |
| Frequency Response | 55Hz - 24kHz (manufacturer specified) |
| Impedance | 4 ohms nominal, 4.1 ohms minimum (measured, Erin's Audio Corner) |
| Recommended Power | 30W - 150W |
| Sensitivity | 86dB (measured average, Erin's Audio Corner; matches manufacturer spec) |
| Weight | 12.5 lbs (12.5 lbs / 5.65 kg) each |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sonus Faber Lumina II vs Focal Aria 906
- Sonus Faber Lumina II vs Polk Monitor XT20
- Sonus Faber Lumina II vs KEF Q3 Meta
- Sonus Faber Lumina II vs Revel Performa M22
- Sonus Faber Lumina II vs Polk R200
- Sonus Faber Lumina II vs SVS Prime Bookshelf
- Sonus Faber Lumina II vs Polk Reserve R100
- Sonus Faber Lumina II vs ELAC Debut 2.0 B6.2
- See all 15 comparisons