Short answer: the Radiant Acoustics Clarity 66 if sound quality matters most, the KEF Q11 Meta if price matters most. The Radiant Acoustics Clarity 66 ranks #11 of 228 floorstanding speakers, rated 4.6/5, at $7,998. The KEF Q11 Meta ranks #124, rated 4.0/5, at $2,499.98, $5,498.02 cheaper.
The Radiant Acoustics Clarity 66 is the better-sounding, deeper-bass pick. Highly accurate floorstanding speakers with Purifi woofers and bass deep enough to skip a subwoofer. Its bass reaches about 32.2Hz before falling 3dB, against 60Hz for the KEF Q11 Meta. The catch: Vertical directivity is narrow and horizontal coverage is uneven, so listening height and placement affect tonal balance.
The KEF Q11 Meta is the more accurate pick. A three-way tower with a coaxial driver that sounds smooth and balanced in a typical room, even when angled well off the listener. Its measured preference score, a predictor of how neutral it sounds, is 6.72 against 6.01 for the Radiant Acoustics Clarity 66. The catch: Genuinely dark-sounding on raw on-axis measurement, and needs a typical room with sidewall reflections (within about 6 feet/2 meters) to sound properly neutral: in a large room with little sidewall interaction, it may sound too dull for some listeners.
Buy the Radiant Acoustics Clarity 66 if sound quality matters more than the price. Buy the KEF Q11 Meta if the price matters more than sound quality.
Want more options? Browse the full Passive Home rankings.
Highly accurate floorstanding speakers with Purifi woofers and bass deep enough to skip a subwoofer.
A three-way tower with a coaxial driver that sounds smooth and balanced in a typical room, even when angled well off the listener.
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Specifications Side By Side
| Radiant Acoustics Clarity 66 | KEF Q11 Meta | |
|---|---|---|
| Price | $7,998 per pair | $2,499.98 per pair |
| Ranked | #11 of 228 in Large Size Floorstanding Speakers | #124 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 32.2Hz (measured, Audio Science Review) | 60Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 24.4Hz (measured, Audio Science Review) | 29Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 85.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) | 88.6dB (measured, Erin’s Audio Corner) |
| Drivers | Custom waveguide-loaded tweeter with beam-expansion fins, 2x 6.5” Purifi USHINDI aluminum-cone woofers | 25mm tweeter + dual 165mm drivers |
| Dimensions | 40.4”H x 8.7”W x 14”D (1025 x 222 x 355 mm) | 43.8”H x 12.5”W x 15”D (1112.8 x 317.5 x 381.0 mm) |
| Weight | 101.4 lbs (46 kg) each | 106.9 lbs (48.5 kg) |
| Impedance | 4 ohms nominal | 4 ohms nominal (3.2 ohms minimum, measured, Erin’s Audio Corner) |
| Crossover Frequency | 2.4kHz | - |
| Woofer Cabinet | ported, large rear port | ported, rear |
| Spinorama Preference Score | 6.01 | 6.72 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 8.03 |
| DIY Kit | No | No |
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