Short answer: the KEF R11 Meta for a friendlier load and deeper bass; the Revel F228Be measures flat but wants more amplifier. The F228Be’s spinorama is essentially flat on-axis with very nice directivity, but its minimum impedance dips to 3.4 ohms with a secondary rise around 2kHz. The KEF is generally flat with very deep bass to an F10 of 30Hz, with a dip around 1-1.2kHz.
On the KEF R11 Meta side: CEA2034 spinorama shows a generally flat on-axis response with good directivity and very deep bass extension (F10 of 30Hz). Set against that: A dip around 1-1.2kHz on-axis is attributed to a diffraction effect, and shows up as a smaller dip in the predicted in-room response.
The case for the Revel F228Be: CEA2034 spinorama shows an essentially flat on-axis response with very nice directivity. The tradeoff: Minimum impedance dips to 3.4 ohms with a secondary rise around 2kHz, calling for an amplifier comfortable with a demanding load.
Buy the Revel F228Be. It is rated higher for sound quality, and the $1000.01 you would save on the KEF R11 Meta does not close the gap.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| KEF R11 Meta | Revel F228Be | |
|---|---|---|
| Price | $3,499.99 per pair | $4500 per pair |
| Ranked | #26 of 71 in Large Size Floorstanding Speakers | #16 of 71 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 31Hz (measured, Audio Science Review) | 25Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 64Hz (measured, Audio Science Review) | 61Hz (measured, Audio Science Review) |
| Dimensions | 51"H x 12.2"W x 15.1"D (1295.4 x 309.9 x 383.5 mm) | 50.9"H x 13.5"W x 17.6"D (1292.9 x 342.9 x 447 mm) |
| Impedance | 4 ohms | 8 ohms |
| Drivers | 4 x 165 mm (6.5 in.) hybrid aluminium cone woofers, 125 mm (5 in.) aluminium cone midrange, 25 mm (1 in.) vented aluminium dome with MAT tweeter | Dual 8" (200mm) Deep Ceramic Composite aluminum cones, with cast frames woofers, 5-1/4" (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1" (25mm) Beryllium dome, with acoustic lens waveguide tweeter |
| Sensitivity | 89.5dB | 89.3dB (300Hz-3kHz @ 2.83V/1m, measured by Audio Science Review; 90dB manufacturer specified) |
| Weight | 80.5 lbs (36.5 kg) each | 112.4 lbs (51 kg) each |
| Woofer Cabinet | ported, rear | ported, front |
| Spinorama Preference Score | 5.05 | 5.20 |
| Spinorama Preference Score with Perfect Sub | 6.46 | 6.70 |
| DIY Kit | No | No |
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Prices on this page were last checked September 23, 2026 at 11:24 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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The Two Speakers In Full
KEF R11 Meta: $3,499.99 per pair Amazon eBay
Pros: CEA2034 spinorama shows a generally flat on-axis response with good directivity and very deep bass extension (F10 of 30Hz). Predicted in-room response is very smooth aside from the small 1-1.5kHz dip. The coaxial Uni-Q driver gives excellent, symmetric vertical directivity, unusual for a tower speaker. Distortion is incredibly low even down to 30Hz at 86dB SPL/1m, and stays low even at 96dB and 102dB SPL/1m - the reviewer found essentially no audible tonality change across that whole output range. Measured bass extension of 64Hz (-3dB).
Cons: A dip around 1-1.2kHz on-axis is attributed to a diffraction effect, and shows up as a smaller dip in the predicted in-room response. Horizontal beamwidth of about ±40 degrees is on the narrower side, though the transition from wide to constant directivity is smooth. Minimum impedance dips to 3.2 ohms around 580Hz, calling for an amplifier comfortable with a demanding load. 4-ohm nominal impedance overall.
Full KEF R11 Meta review and specifications →
| Bass Extension (-10dB) | 31Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 64Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 51"H x 12.2"W x 15.1"D (1295.4 x 309.9 x 383.5 mm) |
| Drivers | 4 x 165 mm (6.5 in.) hybrid aluminium cone woofers, 125 mm (5 in.) aluminium cone midrange, 25 mm (1 in.) vented aluminium dome with MAT tweeter |
| Impedance | 4 ohms |
| Sensitivity | 89.5dB |
| Spinorama Preference Score | 5.05 |
| Spinorama Preference Score with Perfect Sub | 6.46 |
| Weight | 80.5 lbs (36.5 kg) each |
| Woofer Cabinet | ported, rear |
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Revel F228Be: $4500 per pair Crutchfield eBay
Pros: CEA2034 spinorama shows an essentially flat on-axis response with very nice directivity. Predicted in-room response is nearly perfect, with a smooth slope down from bass to treble. Horizontal beamwidth of about ±70 degrees is wide and holds up well until narrowing above 8kHz. Vertical directivity offers more degrees of listening-height freedom than a typical bookshelf design, a benefit of this tower’s driver layout. Distortion is extremely low across the full audio range at 86dB SPL/1m and stays comfortable even at 96dB SPL/1m. Near-field measurements of the individual drivers show nice, well-integrated crossover behavior with only low-level resonances. Measured bass extension of 61Hz (-3dB), with a measured sensitivity of 89.3dB.
Cons: Minimum impedance dips to 3.4 ohms with a secondary rise around 2kHz, calling for an amplifier comfortable with a demanding load. Very expensive and very heavy (51 kg each).
Full Revel F228Be review and specifications →
| Bass Extension (-10dB) | 25Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 61Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 50.9"H x 13.5"W x 17.6"D (1292.9 x 342.9 x 447 mm) |
| Drivers | Dual 8" (200mm) Deep Ceramic Composite aluminum cones, with cast frames woofers, 5-1/4" (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1" (25mm) Beryllium dome, with acoustic lens waveguide tweeter |
| Impedance | 8 ohms |
| Sensitivity | 89.3dB (300Hz-3kHz @ 2.83V/1m, measured by Audio Science Review; 90dB manufacturer specified) |
| Spinorama Preference Score | 5.20 |
| Spinorama Preference Score with Perfect Sub | 6.70 |
| Weight | 112.4 lbs (51 kg) each |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons