Short answer: the MoFi SourcePoint 8. It ranks #17 of 222 bookshelf speakers by sound quality, rated 4.5/5, at $2,594; the ATC SCM19 ranks #209, rated 2.4/5, and costs $3,750, which makes this an easy call rather than a real tradeoff.
The MoFi SourcePoint 8 is the more accurate, deeper-bass pick. A bookshelf speaker with an 8 inch concentric driver, neutral sound, excellent imaging, and wide dispersion that forgives placement. Its measured preference score, a predictor of how neutral it sounds, is 5.15 against 4.61 for the ATC SCM19. Its bass reaches about 52Hz before falling 3dB, against 60Hz for the ATC SCM19. The tradeoff: Like other coincident designs, produces diffraction dips around 4kHz and 7kHz when pointed directly on-axis; needs about 10-15° of toe-out to smooth those out.
The case for the ATC SCM19: A heavy, sealed pro style ATC bookshelf speaker with a very dense cabinet and low distortion at high volume. The tradeoff: Some stored energy resonance around 500-700Hz, 4dB bump around 700Hz.
Buy the MoFi SourcePoint 8. It is rated higher for sound quality than the ATC SCM19 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Passive Home rankings.
A bookshelf speaker with an 8 inch concentric driver, neutral sound, excellent imaging, and wide dispersion that forgives placement.
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 8 | ATC SCM19 | |
|---|---|---|
| Price | $2594 per pair | $3750 per pair |
| Ranked | #17 of 222 in Large Size Bookshelf Speakers | #209 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) | 34Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Audio Science Review) |
| Dimensions | 18”H x 11.4”W x 13.2”D (457.2 x 289.6 x 335.3 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 (8 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 6 ohms |
| Sensitivity | 86.3dB (measured, Erin’s Audio Corner) | 85dB (measured, Audio Science Review) |
| Drivers | 8” woofer, 1.25-inch soft-dome tweeter | 5.9” Super Linear Magnet cone woofer, 1” soft dome tweeter |
| Weight | 28 lbs (12.7 kg) each | 39.2 lbs (17.8 kg) each |
| Woofer Cabinet | ported, rear | sealed |
| Spinorama Preference Score | 5.15 | 4.61 |
| Spinorama Preference Score with Perfect Sub | 7.28 | 7.03 |
| DIY Kit | No | No |
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