Short answer: the KEF R11 Meta for better sound quality, the Sony SS-CS3 for the lower price. The KEF R11 Meta ranks #26 of 68 floorstanding speakers at $3499.99. The Sony SS-CS3 ranks #59 at $450, $3049.99 cheaper.
What the KEF R11 Meta offers: 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. Watch for: 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.
What the Sony SS-CS3 offers: Affordable entry-level floorstanding tower offering solid sensitivity (88.6dB SPL at 2.83V/1m), making it easy to power with standard budget AVRs. Harmonic distortion remains reasonably low at moderate listening levels (86dB SPL) when high-pass filtered above 80-100Hz with a dedicated subwoofer. Front-ported design allows relatively close placement to front boundaries without excessive port occlusion. Watch for: Severe cabinet and driver resonances plague the passband between 100Hz and 600Hz, imparting audible coloration and chesty resonances to male vocals and acoustic instruments. Irregular frequency response peaks and dips make automated receiver room correction difficult to equalize effectively. Poor low-frequency extension (F3 of 72Hz, F10 of 39Hz) for a floorstander, combined with rapid distortion escalation below 80Hz at higher SPLs (96dB+). Supertweeter driver adds crossover complexity without providing audible high-frequency benefit within the human hearing spectrum.
Buy the KEF R11 Meta if sound quality matters more than the price. Buy the Sony SS-CS3 if the price matters more than sound quality.
If sound quality matters at all to you, skip the Sony SS-CS3. It ranks near the bottom of the 68 floorstanding speakers, so look higher up the list instead.
Specifications Side By Side
| KEF R11 Meta | Sony SS-CS3 | |
|---|---|---|
| Price | $3,499.99 | $450.00 Discontinued |
| Ranked | #26 of 68 in Large Size Floorstanding Speakers | #59 of 68 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 31Hz (measured, Audio Science Review) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 64Hz (measured, Audio Science Review) | 72Hz (measured, Erin’s Audio Corner) |
| Dimensions | 51"H x 12.2"W x 15.1"D (1295.4 x 309.9 x 383.5 mm) | 36.3"H x 9.1"W x 10.2"D (922 x 230 x 260 mm) |
| Impedance | 4 ohms | 6 ohms nominal |
| 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 | 0.75 in. supertweeter, 0.98 in. polyester main tweeter, dual 5.12 in. MRC woofers |
| Sensitivity | 89.5dB | 88.6dB (measured average, Erin’s Audio Corner) |
| Weight | 80.5 lbs / 36.5 kg each | 25.4 lbs / 11.5 kg each |
| Woofer Cabinet | ported, rear | ported, front |
| Discontinued | - | Yes |
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- KEF R11 Meta vs Definitive Technology BP-9020
- KEF R11 Meta vs Infinity Reference 253
Prices on this page were last checked August 24, 2026 at 6:53 AM 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 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.
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) |
| 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 |
| Weight | 80.5 lbs / 36.5 kg each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Sony SS-CS3: $450.00 Discontinued eBay
Pros: Affordable entry-level floorstanding tower offering solid sensitivity (88.6dB SPL at 2.83V/1m), making it easy to power with standard budget AVRs. Harmonic distortion remains reasonably low at moderate listening levels (86dB SPL) when high-pass filtered above 80-100Hz with a dedicated subwoofer. Front-ported design allows relatively close placement to front boundaries without excessive port occlusion.
Cons: Severe cabinet and driver resonances plague the passband between 100Hz and 600Hz, imparting audible coloration and chesty resonances to male vocals and acoustic instruments. Irregular frequency response peaks and dips make automated receiver room correction difficult to equalize effectively. Poor low-frequency extension (F3 of 72Hz, F10 of 39Hz) for a floorstander, combined with rapid distortion escalation below 80Hz at higher SPLs (96dB+). Supertweeter driver adds crossover complexity without providing audible high-frequency benefit within the human hearing spectrum. Discontinued.
Full Sony SS-CS3 review and specifications →
| Bass Extension (-10dB) | 39Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 72Hz (measured, Erin's Audio Corner) |
| Dimensions | 36.3"H x 9.1"W x 10.2"D (922 x 230 x 260 mm) |
| Discontinued | Yes |
| Drivers | 0.75 in. supertweeter, 0.98 in. polyester main tweeter, dual 5.12 in. MRC woofers |
| Impedance | 6 ohms nominal |
| Sensitivity | 88.6dB (measured average, Erin's Audio Corner) |
| Weight | 25.4 lbs / 11.5 kg each |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons