Short answer: the MoFi SourcePoint 10 for directivity, the KEF R3 Meta for a milder on-axis treble bump. The MoFi’s Andrew Jones-designed concentric driver delivers best-in-class sound power and early-reflections directivity, but it sounds notably bright pointed directly on-axis because of a deliberate treble lift. The KEF’s three-way concentric layout recesses a 1” tweeter into a 5.25” midrange and shows only a 1-2dB bump around 9kHz.
The MoFi SourcePoint 10 is the deeper-bass pick. A large bookshelf speaker with a 10 inch concentric driver that acts like a point source, with a huge soundstage and strong, clean dynamics. Its bass reaches about 56Hz before falling 3dB, against 76Hz for the KEF R3 Meta. 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 KEF R3 Meta. It is rated higher for sound quality than the MoFi SourcePoint 10 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
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Specifications Side By Side
| KEF R3 Meta | MoFi SourcePoint 10 | |
|---|---|---|
| Price | $2,499.99 per pair | $3795 per pair |
| Ranked | #10 of 222 in Large Size Bookshelf Speakers | #27 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 37Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 76Hz (measured, Erin’s Audio Corner) | 56Hz (measured, Erin’s Audio Corner) |
| Dimensions | 16.6”H x 7.9”W x 13.2”D (421.6 x 200.7 x 335.3 mm) | 22.5”H x 14.5”W x 16.6”D (571.5 x 368.3 x 421.6 mm) |
| Impedance | 4 ohms nominal (3.2 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 8 ohms nominal, 6.4 ohms minimum (measured, Erin’s Audio Corner) |
| Drivers | 6.5” Hybrid aluminum ported woofer, 5” aluminum cone midrange, 1” vented aluminium dome with MAT tweeter | 10” Paper-pulp Cone woofer, 1.25-inch soft-dome tweeter |
| Sensitivity | 85.9dB (measured, Erin’s Audio Corner; 87dB manufacturer specified) | 88.2dB (measured, Erin’s Audio Corner) |
| Weight | 27.3 lbs (12.4 kg) each | 46.3 lbs (21.0 kg) each |
| Woofer Cabinet | ported | ported, rear |
| Spinorama Preference Score | 6.10 | 4.16 |
| Spinorama Preference Score with Perfect Sub | 7.91 | 6.17 |
| DIY Kit | No | No |
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