Short answer: the KEF R3 Meta, and it costs less too. It ranks #10 of 203 large bookshelf speakers at $2,499.99, while the Sonetto II G2 ranks #168 at $3,500, $1,000.01 more, so there is little reason to consider the pricier speaker on sound quality grounds alone.
The measurements explain the gap. Erin’s Audio Corner found the R3 Meta has class-leading directivity and sound power along with very linear on-axis response at the recommended 10 degree toe-out, so it takes EQ exceptionally well. The Sonetto II G2 sounds notably bright pointed straight on-axis, and needs about 30 degrees of toe-out to tame its treble energy and sibilance, a much bigger correction than the R3 Meta requires. The Sonetto II G2 also carries a resonance around 700Hz that gives vocals a slightly nasal, hollow quality, plus a dip in the upper midrange around 1 to 2kHz that reduces perceived detail even as the elevated treble reads as falsely “detailed” to some listeners.
Bass extension is close, but the R3 Meta’s design is more forgiving. Both measure similarly deep at -10dB, 37Hz for the R3 Meta against 38Hz for the Sonetto II G2, and the R3 Meta’s vertical sweet spot extends to about plus or minus 20 to 30 degrees off axis with nearly identical tonality, unusually wide for a two or three-way design. The Sonetto II G2’s vertical window is far narrower, limited to roughly plus or minus 10 to 15 degrees from the tweeter axis, meaning seating height and speaker placement matter more.
The R3 Meta is the harder amplifier load, worth knowing before you buy: its minimum impedance dips to about 3.2 ohms, so it needs a 4-ohm-stable amplifier and likely won’t work well off a standard AVR. The Sonetto II G2 is the easier load at around 4.2 ohms minimum, though it needs more rear-wall clearance, about 1.5 to 2 feet in an ideal room, or the 80 to 120Hz region can turn boomy.
Buy the KEF R3 Meta. It measures more linear, more directionally consistent, and easier to correct with EQ, and it costs less, which settles this pairing without much of a real tradeoff.
Buy the Sonus Faber Sonetto II G2 only if its cabinet materials and industrial design matter enough to you to accept a brighter, less neutral measured performance at a higher price.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| KEF R3 Meta | Sonus Faber Sonetto II G2 | |
|---|---|---|
| Price | $2,499.99 per pair | $3500 per pair |
| Ranked | #10 of 203 in Large Size Bookshelf Speakers | #168 of 203 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 37Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 76Hz (measured, Erin’s Audio Corner) | 62Hz (measured, Erin’s Audio Corner) |
| Dimensions | 16.6”H x 7.9”W x 13.2”D (421.6 x 200.7 x 335.3 mm) | 16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm) |
| Impedance | 4 ohms nominal (3.2 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner) |
| Drivers | 6.5” Hybrid aluminum ported woofer, 5” aluminum cone midrange, 1” vented aluminium dome with MAT tweeter | 1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter |
| Sensitivity | 85.9dB (measured, Erin’s Audio Corner; 87dB manufacturer specified) | 87dB (measured, Erin’s Audio Corner) |
| Weight | 27.3 lbs (12.4 kg) each | 38.4 lbs (17.4 kg) |
| Woofer Cabinet | ported | ported, front |
| Spinorama Preference Score | 6.10 | 4.25 |
| Spinorama Preference Score with Perfect Sub | 7.91 | 6.54 |
| DIY Kit | No | No |
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Prices on this page were last checked October 7, 2026 at 9:25 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
KEF R3 Meta: $2,499.99 per pair Amazon Crutchfield eBay
Older model: the KEF R3 (ranked lower, rated 4.5/5).
Same family: the KEF R5 Meta (smallest floorstanding, rated 4.6/5), the KEF R7 Meta (floorstanding, estimated 4.6/5), the KEF R11 Meta (largest floorstanding, rated 4.4/5), the KEF R2 Meta (smaller center, rated 4.3/5) and the KEF R6 Meta (larger center, rated 4.2/5).
Pros: Three-way design with an unconventional concentric layout: the 1” tweeter is recessed into the throat of the 5.25” midrange driver, deeper integration than a standard coaxial arrangement. A quasi sealed/ported bass alignment gives an extended low-end shelf tuned to match typical in-room gain, reaching about 50Hz for most content: deeper than recently-tested rivals like the Focal Aria 906, Polk R200, and an 8” Aperion design. Spinorama measurements show class-leading directivity and sound power, plus very linear on-axis response (at the recommended 10° toe-out) and early-reflections directivity, so it takes EQ exceptionally well. The vertical sweet spot extends to about ±20-30° off the reference axis with nearly identical tonality, unusually wide for a two- or three-way design. A clear upgrade over the earlier, non-Meta R3, eliminating the treble brightness the original had even when toed off-axis. Outperforms similarly-priced rivals (Revel M106, Wharfedale Linton, Philharmonic BMR V2, JBL HDI 1600) specifically on directivity and linearity in the reviewer’s measurements. At $2500/pair, called the best value in its class with near-reference-level anechoic performance. Measured bass extension of 76Hz (-3dB), with a measured sensitivity of 85.9dB.
Cons: Pointed straight on-axis, there’s a 1-2dB bump around 9kHz that stays consistent across angles thanks to the constant-directivity waveguide: only toeing the speaker out about 10° tames it. Minimum impedance dips to about 3.2 ohms nominal (EPDR as low as 1.9 ohms), so it needs a 4-ohm-stable amplifier; a standard AVR likely won’t cut it. Distortion crosses the reviewer’s 3% threshold around 80Hz at 96dB output and shows added deviation again near 50Hz, indicating it runs out of headroom at higher volumes: a subwoofer is recommended for loud listening. Horizontal radiation narrows from about ±70° at low frequency to ±40° at high frequency. Below about 100Hz, compression testing shows fairly wide deviations at both 86dB and 96dB output, though the reviewer notes this is typical for speakers in this size and price class. Current R3 owners who are already happy with that speaker have little reason to upgrade.
Full KEF R3 Meta review and specifications →
| Bass Extension (-10dB) | 37Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 76Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 16.6”H x 7.9”W x 13.2”D (421.6 x 200.7 x 335.3 mm) |
| Drivers | 6.5” Hybrid aluminum ported woofer, 5” aluminum cone midrange, 1” vented aluminium dome with MAT tweeter |
| Impedance | 4 ohms nominal (3.2 ohms minimum above 80Hz, measured, Erin’s Audio Corner) |
| Sensitivity | 85.9dB (measured, Erin’s Audio Corner; 87dB manufacturer specified) |
| Spinorama Preference Score | 6.10 |
| Spinorama Preference Score with Perfect Sub | 7.91 |
| Weight | 27.3 lbs (12.4 kg) each |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: KEF R3 Meta: The Speaker to Beat. More from Erin’s Audio Corner →
- Erin’s Audio Corner Website KEF R3 Meta Review
- Erin’s Audio Corner: Upgrade Your Sound with These 6 Surprisingly Affordable Speakers!
- Erin’s Audio Corner: My Personal Favorite Speakers Under $2500
- Erin’s Audio Corner: My Top Picks of 2023: Must-Haves Under $3000
- GR-Research: Finally… a Speaker Danny Doesn’t Have to Fix? More from GR-Research →
- New Record Day: The Gold Standard Of "Pretty Good" KEF R3 Meta Review
- Erin’s Audio Corner Measurements (spinorama.org)
- Erin’s Audio Corner: KEF R3 vs R3 Meta vs Reference 1 Meta. Why such a big price gap?
- Head-to-Head Comparisons
Sonus Faber Sonetto II G2: $3500 per pair Crutchfield eBay
Older model: the Sonus Faber Sonetto II (ranked lower, rated 3/5).
Same family: the Sonus Faber Sonetto I G2 (smaller bookshelf, estimated 3/5), the Sonus Faber Sonetto III G2 (smaller floorstanding, estimated 3.2/5), the Sonus Faber Sonetto V G2 (larger floorstanding, estimated 3.3/5) and the Sonus Faber Sonetto Center G2 (center, estimated 3/5).
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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sonus Faber Sonetto II G2 vs Audio Craftsmen Victoria
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- Sonus Faber Sonetto II G2 vs Pylon Jasper Monitor 18
- Sonus Faber Sonetto II G2 vs JBL XPL-90
- Sonus Faber Sonetto II G2 vs KEF Q350
- Sonus Faber Sonetto II G2 vs Sonus Faber Lumina II Amator
- Sonus Faber Sonetto II G2 vs Polk R200
- Sonus Faber Sonetto II G2 vs Sonus Faber Sonetto II
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