Short answer: the Radiant Acoustics Clarity 66 for better sound quality, the Klipsch RP-5000F II for the lower price. The Radiant Acoustics Clarity 66 ranks #11 of 228 floorstanding speakers, rated 4.6/5, at $7,998. The Klipsch RP-5000F II ranks #126, rated 4.0/5, at $859.98, $7,138.02 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 5.24 for the Klipsch RP-5000F II. Its bass reaches about 32.2Hz before falling 3dB, against 55Hz for the Klipsch RP-5000F II. The tradeoff: Vertical directivity is narrow and horizontal coverage is uneven, so listening height and placement affect tonal balance.
Why pick the Klipsch RP-5000F II: The most balanced sounding tower in its series, with precise imaging from its horn tweeter at a moderate price. Watch for: Bass extension is underwhelming for a floorstander (F3 at 55Hz, F10 at 41Hz) and needs a subwoofer.
Buy the Radiant Acoustics Clarity 66 if sound quality is the priority over the price, or the Klipsch RP-5000F II if the price is the priority over 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.
The most balanced sounding tower in its series, with precise imaging from its horn tweeter at a moderate 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 | Klipsch RP-5000F II | |
|---|---|---|
| Price | $7,998 per pair | $859.98 per pair |
| Ranked | #11 of 228 in Large Size Floorstanding Speakers | #126 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 32.2Hz (measured, Audio Science Review) | 55Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 24.4Hz (measured, Audio Science Review) | 41Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 85.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) | 90dB (2.83V/1m, measured by Erin’s Audio Corner) |
| Drivers | Custom waveguide-loaded tweeter with beam-expansion fins, 2x 6.5” Purifi USHINDI aluminum-cone woofers | 1” titanium tweeter with Tractrix horn, dual 5.25” cerametallic woofers |
| Dimensions | 40.4”H x 8.7”W x 14”D (1025 x 222 x 355 mm) | 36.1” x 8.1” x 14.8” (917 x 207 x 375 mm) |
| Weight | 101.4 lbs (46 kg) each | 38.6 lbs (17.5 kg) |
| Impedance | 4 ohms nominal | 8 ohms nominal, 3.3 ohms minimum (measured above 80Hz, Erin’s Audio Corner) |
| Crossover Frequency | 2.4kHz | 1900Hz |
| Woofer Cabinet | ported, large rear port | ported, rear |
| Spinorama Preference Score | 6.01 | 5.24 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 7.25 |
| DIY Kit | No | No |
| Frequency Response | - | 40Hz - 25kHz (+-3dB, Manufacturer specified) |
| Power Handling | - | 100W continuous, 400W peak |
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