Short answer: the MoFi SourcePoint 10. It ranks #27 of 222 bookshelf speakers by sound quality, rated 4.4/5, at $3,795. The ATC SCM19 ranks #209, rated 2.4/5, at $3,750, $45 cheaper, not enough of a saving to outweigh the sound-quality gap.
The MoFi SourcePoint 10 is the better-sounding choice. A large bookshelf speaker with a 10 inch concentric driver that acts like a point source, with a huge soundstage and strong, clean dynamics. The tradeoff: 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.
What the ATC SCM19 does well: A heavy, sealed pro style ATC bookshelf speaker with a very dense cabinet and low distortion at high volume. The catch: Some stored energy resonance around 500-700Hz, 4dB bump around 700Hz.
Buy the MoFi SourcePoint 10. It is rated higher for sound quality, and the $45 you would save on the ATC SCM19 does not close the gap.
Still deciding? The full Passive Home rankings cover every ranked 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.
A heavy, sealed pro style ATC bookshelf speaker with a very dense cabinet and low distortion at high volume.
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Specifications Side By Side
| MoFi SourcePoint 10 | ATC SCM19 | |
|---|---|---|
| Price | $3795 per pair | $3750 per pair |
| Ranked | #27 of 222 in Large Size Bookshelf Speakers | #209 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Erin’s Audio Corner) | 34Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 56Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Audio Science Review) |
| Dimensions | 22.5”H x 14.5”W x 16.6”D (571.5 x 368.3 x 421.6 mm) | 17.2”H x 10.4”W x 11.8”D (436.9 x 264.2 x 299.7 mm) |
| Impedance | 8 ohms nominal, 6.4 ohms minimum (measured, Erin’s Audio Corner) | 6 ohms |
| Sensitivity | 88.2dB (measured, Erin’s Audio Corner) | 85dB (measured, Audio Science Review) |
| Drivers | 10” Paper-pulp Cone woofer, 1.25-inch soft-dome tweeter | 5.9” Super Linear Magnet cone woofer, 1” soft dome tweeter |
| Weight | 46.3 lbs (21.0 kg) each | 39.2 lbs (17.8 kg) each |
| Woofer Cabinet | ported, rear | sealed |
| Spinorama Preference Score | 4.16 | 4.61 |
| Spinorama Preference Score with Perfect Sub | 6.17 | 7.03 |
| DIY Kit | No | No |
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