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Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
References
Front view — side by side at true scale
AKEF LS50 MetaBPolk Reserve R200
KEF LS50 MetavsPolk Reserve R200
The Polk Reserve R200 stands 35.9 cm tall — about 5.7 cm more than the KEF LS50 Meta at 30.2 cm. At 86 dB against 85 dB, the Polk Reserve R200 is the easier load to drive and plays louder from the same amplifier. The Polk Reserve R200 reaches deeper in the bass, down to 51 Hz versus 79 Hz. Low frequencies come from a 130 mm cone on the KEF LS50 Meta and a 165 mm cone on the Polk Reserve R200. On price, the KEF LS50 Meta sits higher — about $1,599 a pair against $749 for the Polk Reserve R200.
| A | B | |
|---|---|---|
| Manufacturer | KEF | Polk |
| Model | LS50 Meta | Reserve R200 |
| HiFi ladder position | #52 of 255 bookshelf | #124 of 255 bookshelf |
| Height | 302 mm | 359 mm |
| Width | 199 mm | 194 mm |
| Depth | 281 mm | 354 mm |
| Weight | 7.8 kg | 8.7 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (MAT aluminium dome), 1× 130 mm mid-bass (aluminium cone) | 1× 25 mm tweeter (Pinnacle ring radiator), 1× 165 mm mid-bass (Turbine cone) |
| Crossover frequency | 2100 Hz | 3000 Hz |
| Frequency — low | 79 Hz | 51 Hz |
| Frequency — high | 28000 Hz | 38000 Hz |
| Sensitivity | 85 dB | 86 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 40–100 W | 30–200 W |
| MAP (USD) | $1,599 / pair | $749 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | international.kef.com ↗ | polkaudio.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.

