Short answer: the Sonus Faber Sonetto II G2, if you are buying new. The JBL Studio 630 ranks higher than it (#123 vs #168 of 203 bookshelf speakers, 3.6/5 vs 3.1/5) but is discontinued, so only consider it used; the Sonus Faber Sonetto II G2 is still sold new at $3,500.
The JBL Studio 630 is the better-sounding, deeper-bass option. Excellent directivity linearity: harmonics of the same instrument stay collocated in the soundstage instead of drifting between positions, giving precise, stable imaging that holds up well into higher frequencies where many speakers start to beam and narrow. Its bass reaches about 54.2Hz before falling 3dB, against 62Hz for the Sonus Faber Sonetto II G2. Watch for: Noticeable mid-range dip/scoop relative to the higher frequencies: not dramatic, but audibly “missing” something by the second or third track.
The Sonus Faber Sonetto II G2 is the more accurate pick. 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. Its measured preference score, a predictor of how neutral it sounds, is 4.25 against 3.67 for the JBL Studio 630. Watch for: Sounds notably bright pointed directly on-axis; toeing the speaker out about 30° reduces treble energy and sibilance meaningfully.
Buy the Sonus Faber Sonetto II G2 if you want one new; the JBL Studio 630 is discontinued, so only look for it used.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| JBL Studio 630 | Sonus Faber Sonetto II G2 | |
|---|---|---|
| Price | $699 per pair Discontinued | $3500 per pair |
| Ranked | #123 of 203 in Large Size Bookshelf Speakers | #168 of 203 in Large Size Bookshelf Speakers |
| Drivers | 6.5” PolyPlas cone woofer, 1” compression driver (2414H-1) with waveguide | 1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter |
| Dimensions | 14-13/16”H x 9”W x 11-5/16”D | 16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm) |
| Weight | 19.8 lbs (9 kg) each | 38.4 lbs (17.4 kg) |
| Impedance | 6 ohms nominal, 4.7 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner) |
| Sensitivity | 83.2dB (measured, Erin’s Audio Corner; 85dB manufacturer specified) | 87dB (measured, Erin’s Audio Corner) |
| Frequency Response | 45Hz - 40,000Hz (manufacturer specified) | - |
| Bass Extension (-3dB) | 54.2Hz (measured, Erin’s Audio Corner) | 62Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 37.0Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Erin’s Audio Corner) |
| Power Handling | up to 150W | - |
| Spinorama Preference Score | 3.67 | 4.25 |
| Spinorama Preference Score with Perfect Sub | 5.68 | 6.54 |
| DIY Kit | No | No |
| Woofer Cabinet | - | ported, front |
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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
JBL Studio 630: $699 per pair Discontinued eBay
Same family: the JBL Studio 698 (floorstanding, rated 4.3/5).
Pros: Excellent directivity linearity: harmonics of the same instrument stay collocated in the soundstage instead of drifting between positions, giving precise, stable imaging that holds up well into higher frequencies where many speakers start to beam and narrow. Good compression behavior: mid-bass stays taut and controlled from low to high volume without the sound falling apart or distorting as you turn it up. A pleasant, controlled mid-bass bump in the 60-100 Hz range adds punch to kick drums without bleeding into an uncontrolled boom on bass guitar. Horizontal radiation holds steady off-axis (about ±60°), so toe-in isn’t fussy. Compared directly to its predecessor, the JBL Studio 530, the reviewer would pick the 630 (smoother trend line through the upper mids and treble, and likely more dynamic headroom) as long as you’re willing to EQ. Measured bass extension of 54.2Hz (-3dB), with a measured sensitivity of 83.2dB.
Cons: Noticeable mid-range dip/scoop relative to the higher frequencies: not dramatic, but audibly “missing” something by the second or third track. Some tracks read as forward or aggressive around 2 kHz, like the upper frequencies are jumping out at you rather than sitting in stage depth. Needs EQ to bring the mid-range back up to be fully recommendable; without EQ available, the reviewer says he’d look at a different speaker entirely. Measured sensitivity (about 83.2dB) runs noticeably below the 85dB manufacturer spec, likely a byproduct of the mid-range dip skewing the average downward. Discontinued and no longer sold new.
Full JBL Studio 630 review and specifications →
| Bass Extension (-10dB) | 37.0Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 54.2Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14-13/16”H x 9”W x 11-5/16”D |
| Drivers | 6.5” PolyPlas cone woofer, 1” compression driver (2414H-1) with waveguide |
| Frequency Response | 45Hz - 40,000Hz (manufacturer specified) |
| Impedance | 6 ohms nominal, 4.7 ohms minimum (measured, Erin’s Audio Corner) |
| Power Handling | up to 150W |
| Sensitivity | 83.2dB (measured, Erin’s Audio Corner; 85dB manufacturer specified) |
| Spinorama Preference Score | 3.67 |
| Spinorama Preference Score with Perfect Sub | 5.68 |
| Weight | 19.8 lbs (9 kg) each |
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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 |
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