Short answer: the KEF R11 Meta for bass depth and forgiving placement, the Revel F328Be for efficiency and directivity if you can sit in its vertical window. The F328Be is quite flat on-axis with superb directivity and efficiency above 90dB, but its vertical directivity is asymmetric, so the reviewer recommends staying between -20 and +40 degrees relative to the tweeter axis. The KEF reaches 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 F328Be: CEA2034 spinorama shows a quite flat on-axis response with superb directivity and efficiency above 90dB. The catch: Vertical directivity is asymmetric - the reviewer recommends staying between -20 and +40 degrees relative to the tweeter axis.
Buy the KEF R11 Meta when the price outweighs sound quality for you, and the Revel F328Be when sound quality outweighs the price instead.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| KEF R11 Meta | Revel F328Be | |
|---|---|---|
| Price | $3,499.99 per pair | $9679.95 per pair |
| Ranked | #26 of 71 in Large Size Floorstanding Speakers | #8 of 71 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 31Hz (measured, Audio Science Review) | 39Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 64Hz (measured, Audio Science Review) | 74Hz (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 nominal (3 ohms minimum, measured by Audio Science Review) |
| 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 | 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 |
| Sensitivity | 89.5dB | 91dB (measured, Audio Science Review) |
| Weight | 80.5 lbs (36.5 kg) each | 112.4 lbs (51 kg) each |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 5.05 | 5.79 |
| Spinorama Preference Score with Perfect Sub | 6.46 | 7.20 |
| 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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Revel F328Be: $9679.95 per pair Crutchfield eBay
Pros: CEA2034 spinorama shows a quite flat on-axis response with superb directivity and efficiency above 90dB. Predicted in-room response is extremely accurate, with a smooth ~5dB downward slope from bass to treble that suits typical rooms without correction. Early reflections sum very nicely with the direct sound. Horizontal beamwidth of about ±70 degrees is wide and quite smooth. At 96dB SPL/1m distortion stays easily below the reviewer’s audibility threshold across nearly the whole range. Measured bass extension of 74Hz (-3dB), with a measured sensitivity of 91dB.
Cons: Vertical directivity is asymmetric - the reviewer recommends staying between -20 and +40 degrees relative to the tweeter axis, reflecting the driver layout of this three-way tower. Impedance dips to a minimum of 3 ohms with an additional resonance-driven phase swing, calling for an amplifier comfortable with a demanding load. Very expensive and very heavy (51 kg each).
Full Revel F328Be review and specifications →
| Bass Extension (-10dB) | 39Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 74Hz (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 | 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 |
| Impedance | 8 ohms nominal (3 ohms minimum, measured by Audio Science Review) |
| Sensitivity | 91dB (measured, Audio Science Review) |
| Spinorama Preference Score | 5.79 |
| Spinorama Preference Score with Perfect Sub | 7.20 |
| Weight | 112.4 lbs (51 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons