Front view — side by side at true scale
AMartinLogan Motion XT B100BKEF LS50 Meta
Click either cabinet to swap A ↔ B · Reference height: 368 mm (36.8 cm) · 1 mm = 1.52 px
| A | B | |
|---|---|---|
| Manufacturer | MartinLogan | KEF |
| Model | Motion XT B100 | LS50 Meta Meta |
| HiFi ladder position | #116 of 215 bookshelf | #44 of 215 bookshelf |
| Height | 368 mm | 302 mm |
| Width | 203 mm | 199 mm |
| Depth | 318 mm | 281 mm |
| Weight | 9.3 kg | 7.8 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× tweeter (Folded Motion XT (AMT)), 1× 165 mm mid-bass (Nomex-reinforced Kevlar cone) | 1× 25 mm tweeter (MAT aluminium dome), 1× 130 mm mid-bass (aluminium cone) |
| Frequency — low | 45 Hz | 79 Hz |
| Frequency — high | 25000 Hz | 28000 Hz |
| Sensitivity | 93 dB | 85 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | 20–250 W | 40–100 W |
| MAP (USD) | $1,598 / pair | $1,599 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | martinlogan.com ↗ | international.kef.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.