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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
AELAC UniFi UB52BPolk Reserve R200
ELAC UniFi UB52vsPolk Reserve R200
The Polk Reserve R200 stands 35.9 cm tall — about 1.3 cm more than the ELAC UniFi UB52 at 34.6 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 ELAC UniFi UB52 reaches deeper in the bass, down to 46 Hz versus 51 Hz. Low frequencies come from a 133 mm cone on the ELAC UniFi UB52 and a 165 mm cone on the Polk Reserve R200. Both land in a similar price bracket, around $774 a pair.
| A | B | |
|---|---|---|
| Manufacturer | ELAC | Polk |
| Model | UniFi UB52 2.0 | Reserve R200 |
| HiFi ladder position | #93 of 215 bookshelf | #106 of 215 bookshelf |
| Height | 13.6 in | 14.1 in |
| Width | 7.3 in | 7.6 in |
| Depth | 10.8 in | 13.9 in |
| Weight | 18.7 lb | 19.2 lb |
| Enclosure | bass-reflex-front | bass-reflex-rear |
| Drivers | 1× 1 in tweeter (soft dome), 1× 4 in midrange (aluminium cone), 1× 5.2 in woofer (aluminium cone) | 1× 1 in tweeter (Pinnacle ring radiator), 1× 6.5 in mid-bass (Turbine cone) |
| Frequency — low | 46 Hz | 51 Hz |
| Frequency — high | 35000 Hz | 38000 Hz |
| Sensitivity | 85 dB | 86 dB |
| Impedance | 6 Ω | 4 Ω |
| Recommended amp | — | 30–200 W |
| MAP (USD) | $799 / pair | $749 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | elac.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.

