Short answer: the KEF R5 for off-axis consistency, the Revel F328Be for efficiency. The R5’s coincident Uni-Q midrange/tweeter keeps horizontal and vertical off-axis responses tracking the direct sound smoothly, but the gap between its 77Hz F3 and 33Hz F10 signals a gradual bass contour, so a subwoofer and roughly 80Hz high-pass are recommended. The F328Be is quite flat on-axis with superb directivity and efficiency above 90dB.
Buy the Revel F328Be. It is rated higher for sound quality, and the KEF R5 is discontinued, so it is only available used.
Looking for alternatives? See the complete Passive Home rankings.
CEA2034 spinorama shows a quite flat on-axis response with superb directivity and efficiency above 90dB.
Crutchfield $9679.95 eBay
Prices on this page were last checked October 15, 2026 at 5:41 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Revel F328Be | KEF R5 | |
|---|---|---|
| Price | $19,359.90 per pair | $2,999 per pair Discontinued |
| Ranked | #9 of 228 in Large Size Floorstanding Speakers | #42 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 39Hz (measured, Audio Science Review) | 33Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 74Hz (measured, Audio Science Review) | 77Hz (measured, Erin’s Audio Corner) |
| Dimensions | 50.9”H x 13.5”W x 17.6”D (1292.9 x 342.9 x 447 mm) | 40.4”H x 6.9”W x 13.5”D |
| Impedance | 8 ohms nominal (3 ohms minimum, measured by Audio Science Review) | Approximately 3.5 ohms minimum near 150Hz (measured, Erin’s Audio Corner) |
| Drivers | Three 8” (200mm) Deep Ceramic Composite aluminum cones, with cast frames woofer, 5-1/4” (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1” (25mm) Beryllium dome, with acoustic lens waveguide tweeter | 1” aluminum tweeter coaxial with 5” midrange; dual 5.25” woofers |
| Sensitivity | 91dB (measured, Audio Science Review) | Approximately 86dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Weight | 112.4 lbs (51 kg) each | 59.5 lbs (27 kg) each |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 6.40 | 5.78 |
| Spinorama Preference Score with Perfect Sub | 7.81 | 7.40 |
| DIY Kit | No | No |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared. The two were measured by different sources, so small differences, especially in the bass, can come from the measurement setup rather than the speakers.
Measurement data: Revel F328Be (measured by Audio Science Review) and KEF R5 (measured by Erin’s Audio Corner), via spinorama.org.
Related Speaker Comparisons
More worthwhile head-to-heads for Revel F328Be: