Short answer: the MoFi SourcePoint 10. It ranks #27 of 222 bookshelf speakers by sound quality, rated 4.4/5, at $3,795. The Dynaudio Special Forty ranks #148, rated 3.5/5, at $3,600, $195 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Dynaudio Special Forty is the more accurate option. Premium bookshelf speakers with strong output, wide dispersion and fairly deep bass from a compact rear ported cabinet. Its measured preference score, a predictor of how neutral it sounds, is 4.73 against 4.16 for the MoFi SourcePoint 10. Watch for: A glaring, sometimes sibilant quality around 3-4kHz was the most noticeable issue in listening, the one thing the reviewer would want notched out with EQ.
The MoFi SourcePoint 10 is the better-sounding option. A large bookshelf speaker with a 10 inch concentric driver that acts like a point source, with a huge soundstage and strong, clean dynamics. Watch for: Like virtually all coincident designs, sounds notably bright pointed directly on-axis due to a deliberate treble lift (meant to compensate for the 28mm tweeter’s earlier beaming versus a typical 25mm/1” tweeter) combined with a diffraction dip/peak from the waveguide edge; needs about 15° of toe-out to sound neutral, and even then benefits from an extra 1-2dB of treble EQ.
Buy the MoFi SourcePoint 10. It is rated higher for sound quality, and the $195 you would save on the Dynaudio Special Forty does not close the gap.
Still deciding? The full Passive Home rankings cover every ranked option.
Premium bookshelf speakers with strong output, wide dispersion and fairly deep bass from a compact rear ported cabinet.
A large bookshelf speaker with a 10 inch concentric driver that acts like a point source, with a huge soundstage and strong, clean dynamics.
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Specifications Side By Side
| Dynaudio Special Forty | MoFi SourcePoint 10 | |
|---|---|---|
| Price | $3600 per pair | $3795 per pair |
| Ranked | #148 of 222 in Large Size Bookshelf Speakers | #27 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner) | 56Hz (measured, Erin’s Audio Corner) |
| Dimensions | 14.1”H x 7.7”W x 12.1”D (358.1 x 195.6 x 307.3 mm) | 22.5”H x 14.5”W x 16.6”D (571.5 x 368.3 x 421.6 mm) |
| Impedance | 6 ohms nominal (4.9 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 8 ohms nominal, 6.4 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) | 88.2dB (measured, Erin’s Audio Corner) |
| Drivers | 5.9” MSP (Magnesium Silicate Polymer) cone woofer, 1” Esotar soft dome tweeter | 10” Paper-pulp Cone woofer, 1.25-inch soft-dome tweeter |
| Weight | 17.9 lbs (8.1 kg) each | 46.3 lbs (21.0 kg) each |
| Woofer Cabinet | ported | ported, rear |
| Spinorama Preference Score | 4.73 | 4.16 |
| Spinorama Preference Score with Perfect Sub | 6.74 | 6.17 |
| DIY Kit | No | No |
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