Short answer: the Radiant Acoustics Clarity 66 if sound quality matters most, the Polk Audio XT60 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 XT60 ranks #178, rated 3.5/5, at $458, $7,540 cheaper.
The Radiant Acoustics Clarity 66 is the more accurate, deeper-bass option. Highly accurate floorstanding speakers with Purifi woofers and bass deep enough to skip a subwoofer. Its measured preference score, a predictor of how neutral it sounds, is 6.01 against 5.19 for the Polk Audio XT60. Its bass reaches about 32.2Hz before falling 3dB, against 43.9Hz for the Polk Audio XT60. Watch for: Vertical directivity is narrow and horizontal coverage is uneven, so listening height and placement affect tonal balance.
The case for the Polk Audio XT60: A budget tower with a woofer and two passive radiators that gives surprisingly deep bass for the price. Watch for: Bass alignment Q (lfq 0.96) is an unusually high, underdamped figure for a tower speaker, consistent with owner reports of a slightly loose, boomy low end at higher volumes.
Buy the Radiant Acoustics Clarity 66 when sound quality outweighs the price for you, and the Polk Audio XT60 when the price outweighs sound quality instead.
Looking for alternatives? See the complete Passive Home rankings.
Highly accurate floorstanding speakers with Purifi woofers and bass deep enough to skip a subwoofer.
A budget tower with a woofer and two passive radiators that gives surprisingly deep bass for the price.
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 XT60 | |
|---|---|---|
| Price | $7,998 per pair | $458 per pair |
| Ranked | #11 of 228 in Large Size Floorstanding Speakers | #178 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 32.2Hz (measured, Audio Science Review) | 43.9Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 24.4Hz (measured, Audio Science Review) | 38.1Hz (measured, spinorama.org) |
| Sensitivity | 85.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) | 86dB (1W/1m) |
| Drivers | Custom waveguide-loaded tweeter with beam-expansion fins, 2x 6.5” Purifi USHINDI aluminum-cone woofers | 1” Terylene dome tweeter, 6.5” bilaminate polypropylene woofer, 2x 6.5” passive radiators |
| Dimensions | 40.4”H x 8.7”W x 14”D (1025 x 222 x 355 mm) | 19.05 x 92.5 x 23.09cm (7.5 x 36.4 x 9.09 in) each |
| Weight | 101.4 lbs (46 kg) each | 20 lbs (9.07 kg) each |
| Impedance | 4 ohms nominal | 4/8-ohm compatible |
| Crossover Frequency | 2.4kHz | - |
| Woofer Cabinet | ported, large rear port | Passive radiator-loaded |
| Spinorama Preference Score | 6.01 | 5.19 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 7.13 |
| DIY Kit | No | No |
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