Front view — side by side at true scale
AFyne Audio F5SBCastle Richmond IV
Click either cabinet to swap A ↔ B · Reference height: 305 mm (30.5 cm) · 1 mm = 1.84 px
| A | B | |
|---|---|---|
| Manufacturer | Fyne Audio | Castle |
| Model | Fyne Audio F5S | Castle Richmond IV |
| Height | 285 mm | 305 mm |
| Width | 174 mm | 190 mm |
| Depth | 249 mm | 262 mm |
| Weight | 4.5 kg | 6.3 kg |
| Enclosure | bass-reflex-down | bass-reflex-rear |
| Drivers | 1× 19 mm tweeter (magnesium dome), 1× 125 mm mid-bass (multi-fibre cone) | 1× 150 mm mid-bass, 1× 32 mm tweeter (soft dome) |
| Frequency — low | 55 Hz | 58 Hz |
| Frequency — high | 38000 Hz | 22000 Hz |
| Sensitivity | 87 dB | 87 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 30–90 W | 25–100 W |
| MAP (USD) | $762 / pair | $760 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | fyneaudio.com ↗ | castle.uk.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.