Sonus Faber Sonetto II G2 vs Dynaudio Contour 20i

Last updated: September 16, 2026

Short answer: the Dynaudio Contour 20i for better sound quality, the Sonus Faber Sonetto II G2 for the lower price. The Dynaudio Contour 20i ranks #60 of 130 bookshelf speakers at $5750. The Sonus Faber Sonetto II G2 ranks #103 at $3500, $2250 cheaper.

Sonus Faber Sonetto II G2 vs Dynaudio Contour 20i

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 Dynaudio Contour 20i offers: Two-way design with a 1.125” Esotar2i silk dome tweeter and a 7” magnesium silicate polymer woofer in a vented enclosure. A shallow bass rolloff profile lets it sit closer to a wall (about 1-2 feet worked best in testing) without becoming boomy, and makes subwoofer integration comparatively easy. Very wide horizontal radiation (about ±70° through the midrange) gives an enveloping, spacious sound in a suitably sized room. On-axis response holds within about ±3dB overall and ±1.5dB through the midrange. Attractive build quality with a distinctive metal front baffle and gloss finish options. Long-term compression stays good up to 96dB, and short-term compression is within about 0.5dB at that same level. Watch for: Notably room-dependent: sounds too bright in the lower treble in smaller rooms with close sidewalls, needing sidewall absorption to sound neutral, while performing better in larger or more open rooms without that treatment. A roughly 2dB lift in the lower treble combined with wide dispersion means more energy reflecting off sidewalls than some listeners will prefer. Relatively low sensitivity (about 82.5dB measured). Unusually sensitive to amplifier output impedance - high-output-impedance amps like tube or SET designs introduce up to a 2dB dip in the midrange, making the sound more mellow rather than “warmer,” the opposite of what many tube-amp buyers expect. Elevated harmonic and multitone distortion around 700Hz, which the reviewer attributes to typical cone-edge/surround behavior common across many driver brands, though it stands out on the measurement graphs. An upper-midrange dip around 2kHz can reduce attack and clarity on vocals and brass instruments. Vertical listening window is fairly narrow (roughly -20° to +30°) - moving outside that range causes a noticeable tonal shift, unlike coaxial designs that tolerate more vertical movement.

Buy the Sonus Faber Sonetto II G2 if the price is the priority over sound quality, or the Dynaudio Contour 20i if sound quality is the priority over the price.

Skip the Sonus Faber Sonetto II G2 if sound quality matters to you. It ranks near the bottom of the 130 bookshelf speakers.

Want more options? Browse the full Passive Home rankings.

Specifications Side By Side

Sonus Faber Sonetto II G2 Dynaudio Contour 20i
Price$3500 per pair$5750 per pair
Ranked#103 of 130 in Large Size Bookshelf Speakers#60 of 130 in Large Size Bookshelf Speakers
Bass Extension (-10dB)38Hz (measured, Erin's Audio Corner)32Hz (measured, Erin's Audio Corner)
Bass Extension (-3dB)62Hz (measured, Erin's Audio Corner)56Hz (measured, Erin's Audio Corner)
Impedance4 ohms nominal (4.2 ohms minimum, measured by Erin's Audio Corner)4 ohms
Sensitivity87dB (measured, Erin's Audio Corner)82.5dB
Drivers1x 6.5" mid-woofer (paper cone), 1x 1.1" (28mm) DAD soft dome tweeter18 cm MSP woofer, 28mm Esotar 2i with Hexis tweeter
Weight38.4 lbs (17.4 kg)30.9 lbs (14 kg) each
Dimensions16.3"H x 8.9"W x 14"D (414.3 x 227.0 x 355.6 mm)17.4"H x 8.5"W x 14.2"D (442 x 215.9 x 360.7 mm)
Woofer Cabinetported, frontported, rear
Spinorama Preference Score3.34-
Spinorama Preference Score with Perfect Sub5.62-

More top alternatives to Dynaudio Contour 20i:

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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)
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 Score3.34
Spinorama Preference Score with Perfect Sub5.62
Weight38.4 lbs (17.4 kg)
Woofer Cabinetported, front

Dynaudio Contour 20i: $5750 per pair Safeandsoundhq eBay

Dynaudio Contour 20i ranking card

Pros: Two-way design with a 1.125” Esotar2i silk dome tweeter and a 7” magnesium silicate polymer woofer in a vented enclosure. A shallow bass rolloff profile lets it sit closer to a wall (about 1-2 feet worked best in testing) without becoming boomy, and makes subwoofer integration comparatively easy. Very wide horizontal radiation (about ±70° through the midrange) gives an enveloping, spacious sound in a suitably sized room. On-axis response holds within about ±3dB overall and ±1.5dB through the midrange. Attractive build quality with a distinctive metal front baffle and gloss finish options. Long-term compression stays good up to 96dB, and short-term compression is within about 0.5dB at that same level. Measured bass extension of 56Hz (-3dB).

Cons: Notably room-dependent: sounds too bright in the lower treble in smaller rooms with close sidewalls, needing sidewall absorption to sound neutral, while performing better in larger or more open rooms without that treatment. A roughly 2dB lift in the lower treble combined with wide dispersion means more energy reflecting off sidewalls than some listeners will prefer. Relatively low sensitivity (about 82.5dB measured). Unusually sensitive to amplifier output impedance - high-output-impedance amps like tube or SET designs introduce up to a 2dB dip in the midrange, making the sound more mellow rather than “warmer,” the opposite of what many tube-amp buyers expect. Elevated harmonic and multitone distortion around 700Hz, which the reviewer attributes to typical cone-edge/surround behavior common across many driver brands, though it stands out on the measurement graphs. An upper-midrange dip around 2kHz can reduce attack and clarity on vocals and brass instruments. Vertical listening window is fairly narrow (roughly -20° to +30°) - moving outside that range causes a noticeable tonal shift, unlike coaxial designs that tolerate more vertical movement.

Bass Extension (-10dB)32Hz (measured, Erin's Audio Corner)
Bass Extension (-3dB)56Hz (measured, Erin's Audio Corner)
Dimensions17.4"H x 8.5"W x 14.2"D (442 x 215.9 x 360.7 mm)
Drivers18 cm MSP woofer, 28mm Esotar 2i with Hexis tweeter
Impedance4 ohms
Sensitivity82.5dB
Weight30.9 lbs (14 kg) each
Woofer Cabinetported, rear