Sonus Faber Sonetto II G2 vs Triangle Borea BR03

Last updated: October 1, 2026

Short answer: the Sonus Faber Sonetto II G2 if sound quality matters most, the Triangle Borea BR03 if price matters most. The Sonus Faber Sonetto II G2 ranks #106 of 134 bookshelf speakers, rated 3.1/5, at $3,500. The Triangle Borea BR03 ranks #113, rated 2.8/5, at $398, $3,102 cheaper.

Sonus Faber Sonetto II G2 vs Triangle Borea BR03

Buy the Sonus Faber Sonetto II G2 when sound quality outweighs the price for you, and the Triangle Borea BR03 when the price outweighs sound quality instead.

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Specifications Side By Side

Sonus Faber Sonetto II G2 Triangle Borea BR03
Price$3500 per pair$398.00 per pair
Ranked#106 of 134 in Large Size Bookshelf Speakers#113 of 134 in Large Size Bookshelf Speakers
Bass Extension (-10dB)38Hz (measured, Erin’s Audio Corner)42Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)62Hz (measured, Erin’s Audio Corner)57Hz (measured, Erin’s Audio Corner)
Impedance4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner)8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity87dB (measured, Erin’s Audio Corner)87.5dB (measured at 2.83V/1m, Erin’s Audio Corner)
Drivers1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter6.5” natural cellulose midwoofer, 1” (25mm) EFS silk dome tweeter
Weight38.4 lbs (17.4 kg)13.2 lbs (6 kg) each
Dimensions16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm)14.96”H x 8.11”W x 12.36”D
Woofer Cabinetported, frontported, dual front ports
Spinorama Preference Score4.254.03
Spinorama Preference Score with Perfect Sub6.546.38
DIY KitNoNo
Crossover Frequency-3600Hz
Recommended Power-100W

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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 Sonetto II G2: $3500 per pair Crutchfield eBay

Sonus Faber Sonetto II G2 ranking card

Pros: Two-way design with a 1.125” damped Apex Dome silk tweeter and 6.5” cone woofer, using a base of concrete, aluminum, and steel with under-cabinet venting. Notably more neutral than Sonus Faber’s own Lumina 2, which runs 2-5dB hotter in the treble. Horizontal directivity narrows at a fairly constant, well-behaved rate rather than narrowing-then-widening-then-narrowing like some rivals (including the Lumina 2), meaning sidewall reflections match the direct sound well enough that the reviewer doesn’t recommend sidewall absorption for this speaker. The tweeter-to-woofer crossover handoff around 3kHz looks clean, suggesting a higher-order crossover than typical for the size/price class. Good dynamic range: the low end loses only about 2dB from 76dB to 96dB, otherwise holding up well. Not a difficult amplifier load (about 4.2 ohms minimum impedance). Bass extension reaches a genuine 50Hz in-room, fuller than the Lumina 2. Measured bass extension of 62Hz (-3dB), with a measured sensitivity of 87dB.

Cons: Sounds notably bright pointed directly on-axis; toeing the speaker out about 30° reduces treble energy and sibilance meaningfully. A resonance around 700Hz gives vocals a slightly nasal, hollow quality. A dip in the upper midrange (roughly 1-2kHz) reduces perceived detail and attack, while the elevated treble can read as “analytical” or “detailed” to some listeners despite being a coloration rather than true resolution. Needs more clearance from the rear wall than some rivals (about 1.5-2 feet in an ideal room, more or less depending on your specific room modes) or the 80-120Hz region can become boomy. Vertical listening window is limited to about ±10-15° from the tweeter axis. Some unexplained directivity irregularities appear around 1.2kHz and 1.6kHz, possibly port-related, along with a longer decay in the 800Hz-1600Hz range in burst-decay measurements. Multitone distortion approaches the reviewer’s 3% threshold through the midrange, though likely not obviously audible without direct A/B comparison. A resonance in the cabinet appears around 400Hz in impedance measurements.

Bass Extension (-10dB)38Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)62Hz (measured, Erin’s Audio Corner)
DIY KitNo
Dimensions16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm)
Drivers1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter
Impedance4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner)
Sensitivity87dB (measured, Erin’s Audio Corner)
Spinorama Preference Score4.25
Spinorama Preference Score with Perfect Sub6.54
Weight38.4 lbs (17.4 kg)
Woofer Cabinetported, front

Triangle Borea BR03: $398.00 per pair Amazon eBay

Triangle Borea BR03 ranking card

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.

Bass Extension (-10dB)42Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)57Hz (measured, Erin’s Audio Corner)
Crossover Frequency3600Hz
DIY KitNo
Dimensions14.96”H x 8.11”W x 12.36”D
Drivers6.5” natural cellulose midwoofer, 1” (25mm) EFS silk dome tweeter
Impedance8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin’s Audio Corner)
Recommended Power100W
Sensitivity87.5dB (measured at 2.83V/1m, Erin’s Audio Corner)
Spinorama Preference Score4.03
Spinorama Preference Score with Perfect Sub6.38
Weight13.2 lbs (6 kg) each
Woofer Cabinetported, dual front ports