TrueSpecs
Compare technical specifications (up to 4 speakers).
HiFi Ladder
Browse every speaker side by side, ordered by size or by price.
HiFi Search
Find speakers by the specs you want.
TrueScaleAudio
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
AFyne Audio F5SBPolk Reserve R100
| A | B | |
|---|---|---|
| Manufacturer | Fyne Audio | Polk |
| Model | Fyne Audio F5S | Polk Reserve R100 |
| Height | 285 mm | 324 mm |
| Width | 174 mm | 167 mm |
| Depth | 249 mm | 260 mm |
| Weight | 4.5 kg | 5.5 kg |
| Enclosure | bass-reflex-down | bass-reflex-rear |
| Drivers | 1× 19 mm tweeter (magnesium dome), 1× 125 mm mid-bass (multi-fibre cone) | 1× 25 mm tweeter (Pinnacle ring radiator), 1× 133 mm mid-bass (Turbine cone) |
| Frequency — low | 55 Hz | 58 Hz |
| Frequency — high | 38000 Hz | 39000 Hz |
| Sensitivity | 87 dB | 86 dB |
| Impedance | 8 Ω | 4 Ω |
| Recommended amp | 30–90 W | 30–150 W |
| MAP (USD) | $762 / pair | $699 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | fyneaudio.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.

