Sonus Faber Sonetto II G2 vs JBL HDI-1600

Last updated: August 25, 2026

Short answer: the JBL HDI-1600. It ranks #44 of 131 bookshelf speakers by sound quality at $1980; the Sonus Faber Sonetto II G2 ranks #104 and costs $3500, so there is not much of a tradeoff to weigh.

What the Sonus Faber Sonetto II G2 offers: 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. Watch for: 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.

What the JBL HDI-1600 offers: CEA2034 spinorama is very flat in the critical mid-to-upper frequencies, with a slight bass boost that should have a good subjective effect and very smooth early-window directivity. Predicted in-room response in a simulated average listening room closely tracks the reviewer’s own preferred target curve. Watch for: A dip appears above 10kHz on-axis. Cumulative spectral decay (waterfall) shows some messiness around the crossover along with a 700Hz resonance. Harmonic distortion rises to nearly 2% right at the 1.9kHz crossover point at 96dB SPL/1m.

Buy the JBL HDI-1600. It ranks higher for sound quality than the Sonus Faber Sonetto II G2 and costs less, so there is no real case for the other one.

If sound quality matters at all to you, skip the Sonus Faber Sonetto II G2. It ranks near the bottom of the 131 bookshelf speakers, so look higher up the list instead.

Sonus Faber Sonetto II G2 vs JBL HDI-1600

Specifications Side By Side

Sonus Faber Sonetto II G2 JBL HDI-1600
Price$3500$1980 Discontinued
Ranked#104 of 131 in Large Size Bookshelf Speakers#44 of 131 in Large Size Bookshelf Speakers
Bass Extension (-10dB)38Hz (measured, Erin’s Audio Corner)55Hz (measured, Audio Science Review)
Bass Extension (-3dB)62Hz (measured, Erin’s Audio Corner)70Hz (measured, Audio Science Review)
Impedance4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner)4 ohms nominal (measured, Audio Science Review)
Sensitivity87dB (measured, Erin’s Audio Corner)85dB (2.83V/1m, measured, Audio Science Review)
Drivers1x 6.5" mid-woofer (paper cone), 1x 1.1" (28mm) DAD soft dome tweeter1" tweeter + 6.5" woofer
Weight38.4 lbs / 17.4 kg53.4 lbs / 24.2 kg
Dimensions16.3"H x 8.9"W x 14"D (414.3 x 227.0 x 355.6 mm)14.6"H x 9.1"W x 11.4"D (370.0 x 230.0 x 288.9 mm)
Woofer Cabinetported, frontported, rear
Discontinued-Yes

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The Two Speakers In Full

Sonus Faber Sonetto II G2: $3500 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.

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)
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)
Weight38.4 lbs / 17.4 kg
Woofer Cabinetported, front

JBL HDI-1600: $1980 Discontinued Crutchfield eBay

JBL HDI-1600 ranking card

Pros: CEA2034 spinorama is very flat in the critical mid-to-upper frequencies, with a slight bass boost that should have a good subjective effect and very smooth early-window directivity. Predicted in-room response in a simulated average listening room closely tracks the reviewer’s own preferred target curve.

Cons: A dip appears above 10kHz on-axis. Cumulative spectral decay (waterfall) shows some messiness around the crossover along with a 700Hz resonance. Harmonic distortion rises to nearly 2% right at the 1.9kHz crossover point at 96dB SPL/1m. Discontinued.

Bass Extension (-10dB)55Hz (measured, Audio Science Review)
Bass Extension (-3dB)70Hz (measured, Audio Science Review)
Dimensions14.6"H x 9.1"W x 11.4"D (370.0 x 230.0 x 288.9 mm)
DiscontinuedYes
Drivers1" tweeter + 6.5" woofer
Impedance4 ohms nominal (measured, Audio Science Review)
Sensitivity85dB (2.83V/1m, measured, Audio Science Review)
Weight53.4 lbs / 24.2 kg
Woofer Cabinetported, rear