TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
Front view — side by side at true scale
KEF R3 MetavsSonus Faber Lumina II
The KEF R3 Meta stands 42.2 cm tall — about 11.8 cm more than the Sonus Faber Lumina II at 30.4 cm. On footprint the KEF R3 Meta is the wider cabinet (20.0 cm versus 17.9 cm). At 87 dB against 86 dB, the KEF R3 Meta is the easier load to drive and plays louder from the same amplifier. The Sonus Faber Lumina II reaches deeper in the bass, down to 55 Hz versus 58 Hz. Low frequencies come from a 165 mm cone on the KEF R3 Meta and a 150 mm cone on the Sonus Faber Lumina II. On price, the KEF R3 Meta sits higher — about $2,999 a pair against $1,499 for the Sonus Faber Lumina II.
| A | B | |
|---|---|---|
| Manufacturer | KEF | Sonus Faber |
| Model | R3 Meta | Lumina II |
| HiFi ladder position | #190 of 255 bookshelf | #54 of 255 bookshelf |
| Height | 422 mm | 304 mm |
| Width | 200 mm | 179 mm |
| Depth | 336 mm | 263 mm |
| Weight | 12.4 kg | 5.8 kg |
| Enclosure | bass-reflex-rear | bass-reflex-front |
| Drivers | 1× 25 mm tweeter (MAT aluminium dome), 1× 125 mm midrange (aluminium cone), 1× 165 mm woofer (hybrid aluminium cone) | 1× 29 mm tweeter (DAD soft dome), 1× 150 mm mid-bass (paper cone) |
| Crossover frequency | 420 / 2300 Hz | 1800 Hz |
| Frequency — low | 58 Hz | 55 Hz |
| Frequency — high | 28000 Hz | 24000 Hz |
| Sensitivity | 87 dB | 86 dB |
| Impedance | 4 Ω | 4 Ω |
| Recommended amp | 15–180 W | 30–150 W |
| MAP (USD) | $2,999 / pair | $1,499 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | international.kef.com ↗ | sonusfaber.com ↗ |
| Product page | Open product page ↗ | Open product page ↗ |
Larger value highlighted in green. For low-frequency extension, lower Hz = greater bass reach, so the deeper side is highlighted.

