Short answer: the Radiant Acoustics Clarity 66 if sound quality matters most, the Polk Audio Reserve R700 if price matters most. The Radiant Acoustics Clarity 66 ranks #11 of 228 floorstanding speakers, rated 4.6/5, at $7,998. The Polk Audio Reserve R700 ranks #65, rated 4.3/5, at $2,398, $5,600 cheaper.
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 40Hz for the Polk Audio Reserve R700. The tradeoff: Vertical directivity is narrow and horizontal coverage is uneven, so listening height and placement affect tonal balance.
Why pick the Polk Audio Reserve R700: Floorstanding speakers with accurate sound, genuinely deep bass, a wide enveloping stage and solid punch even at quiet volumes. The catch: Compression in the high frequencies rises sharply between 96dB and 102dB output: a real limitation only at very high volumes (around 100dB at 3 meters), but a clear step down from pricier ($5,000+) towers.
Buy the Radiant Acoustics Clarity 66 if sound quality matters more than the price. Buy the Polk Audio Reserve R700 if the price matters more than sound quality.
Looking for alternatives? See the complete Passive Home rankings.
Highly accurate floorstanding speakers with Purifi woofers and bass deep enough to skip a subwoofer.
Floorstanding speakers with accurate sound, genuinely deep bass, a wide enveloping stage and solid punch even at quiet volumes.
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 | Polk Audio Reserve R700 | |
|---|---|---|
| Price | $7,998 per pair | $2,398 per pair |
| Ranked | #11 of 228 in Large Size Floorstanding Speakers | #65 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 32.2Hz (measured, Audio Science Review) | 40Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 24.4Hz (measured, Audio Science Review) | 31Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 85.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) | 87.5dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin’s Audio Corner) |
| Drivers | Custom waveguide-loaded tweeter with beam-expansion fins, 2x 6.5” Purifi USHINDI aluminum-cone woofers | 2x 8” polypropylene cone woofers, 1x 6.5” turbine cone midrange, 1x 1” Pinnacle ring radiator tweeter |
| Dimensions | 40.4”H x 8.7”W x 14”D (1025 x 222 x 355 mm) | 45”H x 12.6”W x 16.9”D (1143.8 x 320.7 x 428.3 mm) |
| Weight | 101.4 lbs (46 kg) each | 102.1 lbs (46.3 kg) |
| Impedance | 4 ohms nominal | 4 ohms nominal, 3.5 ohms minimum (measured above 80Hz, Erin’s Audio Corner) |
| Crossover Frequency | 2.4kHz | - |
| Woofer Cabinet | ported, large rear port | ported, down-firing |
| Spinorama Preference Score | 6.01 | 6.38 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 7.83 |
| DIY Kit | No | No |
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