Short answer: the Radiant Acoustics Clarity 66. Both are rated 4.6/5 for sound quality (#11 and #18 of 228 floorstanding speakers), and the Radiant Acoustics Clarity 66 costs $7,998 against $15,999.98 for the KEF Reference 3 Meta, so with nothing between them on sound quality, price settles it.
The case for the KEF Reference 3 Meta: Highly accurate three way towers with a coaxial driver, smooth sound across the room and bass deep enough for most music. Watch for: The only measurements are KEF’s own, not independently verified, and spinorama.org computes no preference score for them.
The Radiant Acoustics Clarity 66 is the 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 42.2Hz for the KEF Reference 3 Meta. The catch: Vertical directivity is narrow and horizontal coverage is uneven, so listening height and placement affect tonal balance.
Buy the Radiant Acoustics Clarity 66. Both are rated the same for sound quality, and it costs $8,001.98 less than the KEF Reference 3 Meta.
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Prices on this page were last checked November 7, 2026 at 7:34 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
| KEF Reference 3 Meta | Radiant Acoustics Clarity 66 | |
|---|---|---|
| Price | $15,999.98 per pair | $7,998 per pair |
| Ranked | #18 of 228 in Large Size Floorstanding Speakers | #11 of 228 in Large Size Floorstanding Speakers |
| Weight | 113.1 lbs (51.3 kg) | 101.4 lbs (46 kg) each |
| Drivers | Uni-Q: 125mm aluminium cone midrange, 25mm aluminium dome tweeter with MAT; 2x 165mm aluminium cone woofers | Custom waveguide-loaded tweeter with beam-expansion fins, 2x 6.5” Purifi USHINDI aluminum-cone woofers |
| Frequency Response | 43Hz-35kHz ±3dB (manufacturer specified) | - |
| Bass Extension (-3dB) | 42.2Hz (measured, KEF vendor data via spinorama.org) | 32.2Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | about 31.1Hz (measured, KEF vendor data via spinorama.org) | 24.4Hz (measured, Audio Science Review) |
| Sensitivity | 86dB (2.83V/1m, manufacturer specified) | 85.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) |
| Impedance | 4 ohms nominal, 3.2 ohms minimum (manufacturer specified) | 4 ohms nominal |
| Recommended Power | 50-300W | - |
| Maximum SPL | 113.5dB (manufacturer specified) | - |
| Crossover Frequency | 450Hz, 2.1kHz | 2.4kHz |
| Woofer Cabinet | ported | ported, large rear port |
| Dimensions | 45.5”H x 8.1”W x 18.2”D (1155 x 205 x 462 mm) | 40.4”H x 8.7”W x 14”D (1025 x 222 x 355 mm) |
| Country | United Kingdom | - |
| Spinorama Preference Score | - | 6.01 |
| Spinorama Preference Score with Perfect Sub | - | 7.03 |
| DIY Kit | - | No |
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