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.
Buy the Revel F228Be. It is rated higher for sound quality, and the $4,000.02 you would save on the KEF R11 Meta does not close the gap.
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Specifications Side By Side
| KEF R11 Meta | Revel F228Be | |
|---|---|---|
| Price | $6,999.98 per pair | $11,000 per pair |
| Ranked | #46 of 228 in Large Size Floorstanding Speakers | #29 of 228 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 | 5.91 | 6.01 |
| Spinorama Preference Score with Perfect Sub | 7.32 | 7.51 |
| DIY Kit | No | No |
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