Short answer: the MoFi SourcePoint 888. It ranks #8 of 228 floorstanding speakers by sound quality, rated 4.7/5, at $5,495; the Radiant Acoustics Clarity 66 ranks #11, rated 4.6/5, and costs $7,998, which makes this an easy call rather than a real tradeoff.
What the Radiant Acoustics Clarity 66 does well: Highly accurate floorstanding speakers with Purifi woofers and bass deep enough to skip a subwoofer. Watch for: Vertical directivity is narrow and horizontal coverage is uneven, so listening height and placement affect tonal balance.
The case for the MoFi SourcePoint 888: Excellent floorstanding speakers for the money, with near full range bass and effortless dynamics. The catch: A significant investment, best ordered from a dealer with a good return policy.
Buy the MoFi SourcePoint 888. It is rated higher for sound quality than the Radiant Acoustics Clarity 66 and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Passive Home rankings.
Highly accurate floorstanding speakers with Purifi woofers and bass deep enough to skip a subwoofer.
Excellent floorstanding speakers for the money, with near full range bass and effortless dynamics.
Prices on this page were last checked October 31, 2026 at 7:11 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Radiant Acoustics Clarity 66 | MoFi SourcePoint 888 | |
|---|---|---|
| Price | $7,998 per pair | $5495 per pair |
| Ranked | #11 of 228 in Large Size Floorstanding Speakers | #8 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 32.2Hz (measured, Audio Science Review) | 34Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 24.4Hz (measured, Audio Science Review) | 26Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 85.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) | 85.6dB (measured, Erin’s Audio Corner) |
| Drivers | Custom waveguide-loaded tweeter with beam-expansion fins, 2x 6.5” Purifi USHINDI aluminum-cone woofers | Dual 8” paper cone woofers, 8” Paper Cone midrange, 1.25” wide roll soft dome tweeter |
| Dimensions | 40.4”H x 8.7”W x 14”D (1025 x 222 x 355 mm) | 41.2”H x 12.6”W x 16.1”D (1046.5 x 320 x 408.9 mm) |
| Weight | 101.4 lbs (46 kg) each | 94.8 lbs (43 kg) each |
| Impedance | 4 ohms nominal | 6 ohms nominal, 5 ohms minimum (measured, Erin’s Audio Corner) |
| Crossover Frequency | 2.4kHz | - |
| Woofer Cabinet | ported, large rear port | ported, rear |
| Spinorama Preference Score | 6.01 | 6.09 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 7.21 |
| DIY Kit | No | No |
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