Short answer: the Sonus Faber Sonetto II G2. It ranks #183 of 222 bookshelf speakers by sound quality (rated 3.1/5) at $3,500 and is still sold new; the Pylon Jasper Monitor 18 ranks #186 (rated 3.0/5) and is discontinued, so it is only an option used.
Why pick the Sonus Faber Sonetto II G2: An Italian bookshelf speaker with a silk dome tweeter, a stylish concrete and metal base and evenly behaved dispersion. The catch: Sounds notably bright pointed directly on-axis; toeing the speaker out about 30° reduces treble energy and sibilance meaningfully.
The Pylon Jasper Monitor 18 is the deeper-bass option. A premium Polish monitor with ScanSpeak drivers, lively midbass punch, wide dispersion and an attractive finish. Its bass reaches about 48Hz before falling 3dB, against 62Hz for the Sonus Faber Sonetto II G2. The tradeoff: Sounds notably bright, thumpy, and fatiguing pointed directly on-axis; needs about 30° of toe-out to bring the high-frequency lift into better balance.
Buy the Sonus Faber Sonetto II G2. It is rated higher for sound quality, and the Pylon Jasper Monitor 18 is discontinued, so it is only available used.
Want more options? Browse the full Passive Home rankings.
Measured Differences
- Bass depth: the Pylon Jasper Monitor 18 reaches 32 Hz (10 dB down) against 38 Hz for the Sonus Faber Sonetto II G2, about half an octave deeper. You hear more of the lowest bass notes and kick drums.
- Efficiency: the Sonus Faber Sonetto II G2 is rated at 87 dB sensitivity against 83 dB for the Pylon Jasper Monitor 18, so it plays as loud with roughly half the amplifier power.
- Close enough not to matter: preference score with a subwoofer (6.5 vs 6.3).
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Specifications Side By Side
| Sonus Faber Sonetto II G2 | Pylon Jasper Monitor 18 | |
|---|---|---|
| Price | $3,500.00 per pair | $2,499 per pair Discontinued |
| Ranked | #183 of 222 in Large Size Bookshelf Speakers | #186 of 222 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) | 48Hz (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Erin’s Audio Corner) | 4 ohms nominal, 4.4 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 87dB (measured, Erin’s Audio Corner) | 83dB (measured by Erin’s Audio Corner) |
| Drivers | 1x 6.5” mid-woofer (paper cone), 1x 1.1” (28mm) DAD soft dome tweeter | 1” tweeter + 6.5” woofer |
| Weight | 38.4 lbs (17.4 kg) | 34.2 lbs (15.5 kg) |
| Dimensions | 16.3”H x 8.9”W x 14”D (414.3 x 227.0 x 355.6 mm) | 16.9”H x 7.9”W x 16.3”D (430.0 x 200.0 x 413.0 mm) |
| Woofer Cabinet | ported, front | ported, rear |
| Spinorama Preference Score | 4.25 | 4.72 |
| Spinorama Preference Score with Perfect Sub | 6.54 | 6.34 |
| DIY Kit | No | No |
Where the Ratings Come From
- Sonus Faber Sonetto II G2: Spinorama.org measurements and reviews by Erin’s Audio Corner.
- Pylon Jasper Monitor 18: Spinorama.org measurements and reviews by Erin’s Audio Corner.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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