Short answer: the ELAC Uni-Fi Reference UBR62. It ranks #56 of 141 bookshelf speakers by sound quality, rated 4.1/5, at $1,199; the Sonus Faber Sonetto II G2 ranks #112, rated 3.1/5, and costs $3,500, so there is not much of a tradeoff to weigh.
The ELAC Uni-Fi Reference UBR62 is the more accurate choice. True three-way stand-mount using a 1-inch tweeter concentrically mounted in a 4-inch aluminum midrange plus a dedicated 6.5-inch aluminum woofer. Its measured preference score, a predictor of how neutral it sounds, is 5.44 against 4.25 for the Sonus Faber Sonetto II G2. Watch for: Erin measured very low 83dB/2.83V/1m sensitivity; his 110W Parasound was insufficient for the high-level test and the more powerful HINT 6 was needed.
The case for the Sonus Faber Sonetto II G2: 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. Watch for: Sounds notably bright pointed directly on-axis; toeing the speaker out about 30° reduces treble energy and sibilance meaningfully.
Buy the ELAC Uni-Fi Reference UBR62. It is rated higher for sound quality than the Sonus Faber Sonetto II G2 and costs less, so only choose the other one for a particular feature it does better.
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Specifications Side By Side
| ELAC Uni-Fi Reference UBR62 | Sonus Faber Sonetto II G2 | |
|---|---|---|
| Price | $1,199 per pair | $3500 per pair |
| Ranked | #56 of 141 in Large Size Bookshelf Speakers | #112 of 141 in Large Size Bookshelf Speakers |
| Bass Extension | 41Hz manufacturer specified; Erin’s response-linearity graph shows limited high-output bass headroom | - |
| Bass Extension (-3dB) | 58.6Hz (measured, Erin’s Audio Corner) | 62Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 41.9Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 83dB/2.83V/1m (measured, Erin’s Audio Corner) | 87dB (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms minimum near 50Hz (measured, Erin’s Audio Corner) | 4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner) |
| Drivers | 1” tweeter coaxial with 4” midrange; 6.5” woofer | 1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter |
| Dimensions | 14.1”H x 8.2”W x 13.1”D | 16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm) |
| Woofer Cabinet | ported, dual front slot vents | ported, front |
| Weight | 23.5 lbs (10.68 kg) each | 38.4 lbs (17.4 kg) |
| Spinorama Preference Score | 5.44 (measured, spinorama.org) | 4.25 |
| Spinorama Preference Score with Perfect Sub | 7.7 (measured, spinorama.org) | 6.54 |
| DIY Kit | No | No |
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The Two Speakers In Full
ELAC Uni-Fi Reference UBR62: $1,199 per pair Amazon eBay
Pros: True three-way stand-mount using a 1-inch tweeter concentrically mounted in a 4-inch aluminum midrange plus a dedicated 6.5-inch aluminum woofer. Erin found the directivity and overall tonality well controlled, with dual front slot vents minimizing placement sensitivity and cabinet bracing suppressing obvious coloration. The mostly 5-ohm-or-higher load is manageable for a genuinely 4-ohm-capable amplifier, and the coherent concentric upper range supports stable imaging across seats. Measured bass extension of 58.6Hz (-3dB), with a measured sensitivity of 83dB.
Cons: Erin measured very low 83dB/2.83V/1m sensitivity; his 110W Parasound was insufficient for the high-level test and the more powerful HINT 6 was needed. Impedance reaches 4 ohms near 50Hz (Erin), while woofer excursion and bass output were less capable than expected for the cabinet size. A broad 500-700Hz rise and associated lower/female-vocal coloration were audible, and the slightly subdued listening-window treble is necessary to avoid an overly bright in-room balance rather than evidence of ruler-flat axial tuning.
Full ELAC Uni-Fi Reference UBR62 review and specifications →
| Bass Extension | 41Hz manufacturer specified; Erin’s response-linearity graph shows limited high-output bass headroom |
|---|---|
| Bass Extension (-10dB) | 41.9Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 58.6Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.1”H x 8.2”W x 13.1”D |
| Drivers | 1” tweeter coaxial with 4” midrange; 6.5” woofer |
| Impedance | 4 ohms minimum near 50Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 83dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.44 (measured, spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.7 (measured, spinorama.org) |
| Weight | 23.5 lbs (10.68 kg) each |
| Woofer Cabinet | ported, dual front slot vents |
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Sonus Faber Sonetto II G2: $3500 per pair Crutchfield eBay
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.
Full Sonus Faber Sonetto II G2 review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 62Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm) |
| Drivers | 1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner) |
| Sensitivity | 87dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.25 |
| Spinorama Preference Score with Perfect Sub | 6.54 |
| Weight | 38.4 lbs (17.4 kg) |
| Woofer Cabinet | ported, front |
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