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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 — overlaid at true scale
APolk Reserve R500BMission ZX-3
Polk Reserve R500vsMission ZX-3
The Mission ZX-3 stands 110.1 cm tall — about 5.6 cm more than the Polk Reserve R500 at 104.5 cm. On footprint the Polk Reserve R500 is the wider cabinet (25.3 cm versus 24.0 cm). At 90 dB against 87 dB, the Mission ZX-3 is the easier load to drive and plays louder from the same amplifier. The Mission ZX-3 reaches deeper in the bass, down to 42 Hz versus 49 Hz. Both land in a similar price bracket, around $1,404 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Polk | Mission |
| Model | Polk Reserve R500 | Mission ZX-3 |
| Height | 1045 mm | 1101 mm |
| Width | 253 mm | 240 mm |
| Depth | 349 mm | 362 mm |
| Weight | 17.7 kg | 20.4 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (Pinnacle ring radiator), 2× 133 mm woofer (Turbine cone) | 1× 130 mm mid-bass (aluminium), 1× 38 mm tweeter (ring dome) |
| Frequency — low | 49 Hz | 42 Hz |
| Frequency — high | 36000 Hz | 24000 Hz |
| Sensitivity | 87 dB | 90 dB |
| Impedance | 4 Ω | 4 Ω |
| Recommended amp | 25–200 W | 25–150 W |
| MAP (USD) | $1,398 / pair | $1,410 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | polkaudio.com ↗ | mission.co.uk ↗ |
| 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.

