Short answer: it depends on which tonal flaw you can live with. Both reach decent bass for the money: the Triangle measures F3 57Hz and F10 42Hz with no real reviewer complaints, while the Lumina reaches F3 63Hz and F10 43Hz, roughly 50Hz in-room. The deciding flaw is tonal, with a noticeable mid-range suckout in the Triangle against 3-6dB of treble lift in the Lumina.
Buy the Sonus Faber Lumina II Amator if sound quality is the priority over the price, or the Triangle Borea BR03 if the price is the priority over sound quality.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Sonus Faber Lumina II Amator | Triangle Borea BR03 | |
|---|---|---|
| Price | $2000 per pair | $398.00 per pair |
| Ranked | #110 of 134 in Large Size Bookshelf Speakers | #113 of 134 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) | 42Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 63Hz (measured, Erin’s Audio Corner) | 57Hz (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal, 3.9 ohms minimum (measured, Erin’s Audio Corner) | 8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86.9dB (2.83V/1m, measured by Erin’s Audio Corner) | 87.5dB (measured at 2.83V/1m, Erin’s Audio Corner) |
| Drivers | 1.14” DAD (Damped Apex Dome) tweeter, 5.9” paper cone woofer | 6.5” natural cellulose midwoofer, 1” (25mm) EFS silk dome tweeter |
| Weight | 12.8 lbs (5.8 kg) | 13.2 lbs (6 kg) each |
| Dimensions | 12” x 7.1” x 10.4” (304 x 180 x 263 mm) | 14.96”H x 8.11”W x 12.36”D |
| Frequency Response | 55Hz - 24kHz (Manufacturer specified) | - |
| Crossover Frequency | 2600Hz | 3600Hz |
| Woofer Cabinet | Bass reflex, ported | ported, dual front ports |
| Recommended Power | 30W - 150W | 100W |
| Country | Italy (Vicenza) | - |
| DIY Kit | No | No |
| Spinorama Preference Score | - | 4.03 |
| Spinorama Preference Score with Perfect Sub | - | 6.38 |
Related Speaker Comparisons
How Sonus Faber Lumina II Amator compares with other leading options:
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Prices on this page were last checked October 2, 2026 at 10:18 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 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 |
| DIY Kit | No |
| 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
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Triangle Borea BR03: $398.00 per pair Amazon eBay
Pros: Bass output is genuinely decent for the price: measured extension reaches F3 57Hz/F10 42Hz, which the reviewer had no real complaints about. Dual front-firing ports and a well-stuffed, well-braced cabinet. Solid build quality overall. Measured bass extension of 57Hz (-3dB), with a measured sensitivity of 87.5dB.
Cons: A noticeable mid-range suckout, most pronounced in the upper mid-range/lower treble, that the reviewer attributes to cabinet resonances and driver breakup rather than a deliberate voicing choice: it makes vocals and instruments sound recessed and thin rather than warm. Sibilance in the 4-8kHz region shows up on every track the reviewer tried. Measured minimum impedance dips to about 4.2 ohms (with an even lower EPDR), despite the speaker and its own rear panel being labeled 8 ohms: worth knowing if you’re planning to drive these with a receiver/AVR that assumes an 8-ohm nominal load. The reviewer is upfront that this speaker has a devoted following among other reviewers, but says he specifically doesn’t hear what they hear and wants people who own it to trust their own ears rather than assume something’s wrong with their hearing if they don’t love it either.
Full Triangle Borea BR03 review and specifications →
| Bass Extension (-10dB) | 42Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 57Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 3600Hz |
| DIY Kit | No |
| Dimensions | 14.96”H x 8.11”W x 12.36”D |
| Drivers | 6.5” natural cellulose midwoofer, 1” (25mm) EFS silk dome tweeter |
| Impedance | 8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin’s Audio Corner) |
| Recommended Power | 100W |
| Sensitivity | 87.5dB (measured at 2.83V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.03 |
| Spinorama Preference Score with Perfect Sub | 6.38 |
| Weight | 13.2 lbs (6 kg) each |
| Woofer Cabinet | ported, dual front ports |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Triangle Borea BR03 vs B&W 805S
- Triangle Borea BR03 vs Wharfedale Diamond 9.1
- Triangle Borea BR03 vs Klipsch RP-600M
- Triangle Borea BR03 vs Aperion Audio Verus V8B
- Triangle Borea BR03 vs KEF Q350
- Triangle Borea BR03 vs Emotiva Airmotiv B2+
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- Triangle Borea BR03 vs ATC SCM19
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