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
Click either cabinet to swap A ↔ B · Reference height: 302 mm (30.2 cm) · 1 mm = 1.85 px
KEF LS50 MetavsSonus Faber Lumina I
The KEF LS50 Meta stands 30.2 cm tall — about 2.2 cm more than the Sonus Faber Lumina I at 28.0 cm. On footprint the KEF LS50 Meta is the wider cabinet (19.9 cm versus 14.8 cm). At 85 dB against 84 dB, the KEF LS50 Meta is the easier load to drive and plays louder from the same amplifier. The Sonus Faber Lumina I reaches deeper in the bass, down to 65 Hz versus 79 Hz. Low frequencies come from a 130 mm cone on the KEF LS50 Meta and a 120 mm cone on the Sonus Faber Lumina I. On price, the KEF LS50 Meta sits higher — about $1,599 a pair against $999 for the Sonus Faber Lumina I.
| A | B | |
|---|---|---|
| Manufacturer | KEF | Sonus Faber |
| Model | LS50 Meta | Lumina I |
| HiFi ladder position | #52 of 255 bookshelf | #31 of 255 bookshelf |
| Height | 302 mm | 280 mm |
| Width | 199 mm | 148 mm |
| Depth | 281 mm | 213 mm |
| Weight | 7.8 kg | 4.4 kg |
| Enclosure | bass-reflex-rear | bass-reflex-front |
| Drivers | 1× 25 mm tweeter (MAT aluminium dome), 1× 130 mm mid-bass (aluminium cone) | 1× 29 mm tweeter (DAD soft dome), 1× 120 mm mid-bass (paper cone) |
| Crossover frequency | 2100 Hz | 2000 Hz |
| Frequency — low | 79 Hz | 65 Hz |
| Frequency — high | 28000 Hz | 24000 Hz |
| Sensitivity | 85 dB | 84 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 40–100 W | 30–100 W |
| MAP (USD) | $1,599 / pair | $999 / 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.