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: 14.5 in · 1 in = 38.65 px
MartinLogan Motion XT B100vsKEF LS50 Meta
The MartinLogan Motion XT B100 stands 36.8 cm tall — about 6.6 cm more than the KEF LS50 Meta at 30.2 cm. At 93 dB against 85 dB, the MartinLogan Motion XT B100 is the easier load to drive and plays louder from the same amplifier. The MartinLogan Motion XT B100 reaches deeper in the bass, down to 45 Hz versus 79 Hz. Low frequencies come from a 165 mm cone on the MartinLogan Motion XT B100 and a 130 mm cone on the KEF LS50 Meta. Both land in a similar price bracket, around $1,599 a pair.
| A | B | |
|---|---|---|
| Manufacturer | MartinLogan | KEF |
| Model | Motion XT B100 | LS50 Meta Meta |
| HiFi ladder position | #116 of 215 bookshelf | #44 of 215 bookshelf |
| Height | 14.5 in | 11.9 in |
| Width | 8 in | 7.8 in |
| Depth | 12.5 in | 11.1 in |
| Weight | 20.5 lb | 17.2 lb |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× tweeter (Folded Motion XT (AMT)), 1× 6.5 in mid-bass (Nomex-reinforced Kevlar cone) | 1× 1 in tweeter (MAT aluminium dome), 1× 5.1 in 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.