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: 304 mm (30.4 cm) · 1 mm = 1.84 px
KEF LS50 MetavsSonus Faber Lumina II
The KEF LS50 Meta and the Sonus Faber Lumina II stand at nearly the same height, around 30.2 cm tall. On footprint the KEF LS50 Meta is the wider cabinet (19.9 cm versus 17.9 cm). At 86 dB against 85 dB, the Sonus Faber Lumina II 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 79 Hz. Low frequencies come from a 130 mm cone on the KEF LS50 Meta and a 150 mm cone on the Sonus Faber Lumina II. Both land in a similar price bracket, around $1,549 a pair.
| A | B | |
|---|---|---|
| Manufacturer | KEF | Sonus Faber |
| Model | LS50 Meta | Lumina II |
| HiFi ladder position | #52 of 255 bookshelf | #54 of 255 bookshelf |
| Height | 302 mm | 304 mm |
| Width | 199 mm | 179 mm |
| Depth | 281 mm | 263 mm |
| Weight | 7.8 kg | 5.8 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× 150 mm mid-bass (paper cone) |
| Crossover frequency | 2100 Hz | 1800 Hz |
| Frequency — low | 79 Hz | 55 Hz |
| Frequency — high | 28000 Hz | 24000 Hz |
| Sensitivity | 85 dB | 86 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 40–100 W | 30–150 W |
| MAP (USD) | $1,599 / 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.