Short answer: the KEF R5 Meta for better sound quality, the Sony SS-CS3 for the lower price. The KEF R5 Meta ranks #9 of 71 floorstanding speakers at $3999.99. The Sony SS-CS3 ranks #59 at $450, $3549.99 cheaper.
What the KEF R5 Meta offers: 12th generation 5” Uni-Q coaxial driver array with Metamaterial Absorption Technology (MAT) delivers remarkably smooth, controlled horizontal (±50°) and vertical directivity with near-identical off-axis tracking. Exceptional frequency response linearity through the midrange and treble that takes extremely well to minor parametric EQ adjustments. Constrained Layer Damping cabinet construction and flexible rear ports minimize enclosure resonances and port turbulence. Deliberately tuned low-frequency roll-off profile permits boundary-adjacent room placement near front walls without boomy acoustic buildup. Watch for: Low-frequency extension (F3 of 52Hz, F10 of 38Hz) requires pairing with a dedicated subwoofer crossed over at 80Hz for high-output home theater or bass-heavy music performance. High-frequency radiation above 7kHz shows a mild on-axis taper (1-2dB downward slope), performing best when listened to 10-20° off-axis. Moderate sensitivity (~86dB SPL average) requires a clean, robust 4-ohm capable amplifier to drive high dynamic peaks without clipping.
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 R5 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 71 floorstanding speakers, so look higher up the list instead.
Specifications Side By Side
| KEF R5 Meta | Sony SS-CS3 | |
|---|---|---|
| Price | $3,999.99 Discontinued | $450.00 Discontinued |
| Ranked | #9 of 71 in Large Size Floorstanding Speakers | #59 of 71 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Erin’s Audio Corner) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) | 72Hz (measured, Erin’s Audio Corner) |
| Dimensions | 42.2"H x 10.7"W x 13.6"D (1073 x 273 x 346 mm) | 36.3"H x 9.1"W x 10.2"D (922 x 230 x 260 mm) |
| Discontinued | Yes | Yes |
| Impedance | 4 ohms nominal | 6 ohms nominal |
| Sensitivity | 86dB (measured average, Erin’s Audio Corner) | 88.6dB (measured average, Erin’s Audio Corner) |
| Drivers | 1 in. vented aluminum dome tweeter with MAT, 5 in. aluminum cone midrange, two 5.25 in. hybrid aluminum cone woofers | 0.75 in. supertweeter, 0.98 in. polyester main tweeter, dual 5.12 in. MRC woofers |
| Weight | 54 lbs / 24.5 kg each | 25.4 lbs / 11.5 kg each |
| Woofer Cabinet | ported, rear | ported, front |
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- Definitive Technology BP-9020 vs KEF R5 Meta
- KEF R5 Meta vs JBL Studio 698
Prices on this page were last checked August 25, 2026 at 6:19 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 R5 Meta: $3,999.99 Discontinued eBay
Pros: 12th generation 5” Uni-Q coaxial driver array with Metamaterial Absorption Technology (MAT) delivers remarkably smooth, controlled horizontal (±50°) and vertical directivity with near-identical off-axis tracking. Exceptional frequency response linearity through the midrange and treble that takes extremely well to minor parametric EQ adjustments. Constrained Layer Damping cabinet construction and flexible rear ports minimize enclosure resonances and port turbulence. Deliberately tuned low-frequency roll-off profile permits boundary-adjacent room placement near front walls without boomy acoustic buildup.
Cons: Low-frequency extension (F3 of 52Hz, F10 of 38Hz) requires pairing with a dedicated subwoofer crossed over at 80Hz for high-output home theater or bass-heavy music performance. High-frequency radiation above 7kHz shows a mild on-axis taper (1-2dB downward slope), performing best when listened to 10-20° off-axis. Moderate sensitivity (~86dB SPL average) requires a clean, robust 4-ohm capable amplifier to drive high dynamic peaks without clipping. Discontinued.
Full KEF R5 Meta review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 52Hz (measured, Erin's Audio Corner) |
| Dimensions | 42.2"H x 10.7"W x 13.6"D (1073 x 273 x 346 mm) |
| Discontinued | Yes |
| Drivers | 1 in. vented aluminum dome tweeter with MAT, 5 in. aluminum cone midrange, two 5.25 in. hybrid aluminum cone woofers |
| Impedance | 4 ohms nominal |
| Sensitivity | 86dB (measured average, Erin's Audio Corner) |
| Weight | 54 lbs / 24.5 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